diff --git a/etc/para/include/para_handle.h b/etc/para/include/para_handle.h
index 183e91b..d45fd3d 100644
--- a/etc/para/include/para_handle.h
+++ b/etc/para/include/para_handle.h
@@ -13,8 +13,8 @@
  * limitations under the License.
  */
 
-#ifndef OHOS_MISCSERVICES_INPUTMETHOD_PARA_HANDLE_H
-#define OHOS_MISCSERVICES_INPUTMETHOD_PARA_HANDLE_H
+#ifndef ETC_PARA_INCLUDE_PARA_HANDLE_H
+#define ETC_PARA_INCLUDE_PARA_HANDLE_H
 #include <string>
 namespace OHOS {
     namespace MiscServices {
diff --git a/etc/para/src/para_handle.cpp b/etc/para/src/para_handle.cpp
index 70812ff..5d4ec40 100644
--- a/etc/para/src/para_handle.cpp
+++ b/etc/para/src/para_handle.cpp
@@ -22,9 +22,9 @@ namespace OHOS {
         bool ParaHandle::SetDefaultIme(int32_t userId, const std::string &imeName)
         {
             if (userId != main_userId) {
-                return SetParameter(DEFAULT_IME_KEY + userId, imeName.data()) == 0;
+                return !SetParameter(DEFAULT_IME_KEY + userId, imeName.data());
             } else {
-                return SetParameter(DEFAULT_IME_KEY, imeName.data()) == 0;
+                return !SetParameter(DEFAULT_IME_KEY, imeName.data());
             }
         }
 
diff --git a/frameworks/inputmethod_ability/include/i_input_method_agent.h b/frameworks/inputmethod_ability/include/i_input_method_agent.h
index 8307a90..8af4173 100644
--- a/frameworks/inputmethod_ability/include/i_input_method_agent.h
+++ b/frameworks/inputmethod_ability/include/i_input_method_agent.h
@@ -13,8 +13,8 @@
  * limitations under the License.
  */
 
-#ifndef FM_IMMS_PROJECT_IINPUTMETHODAGENT_H
-#define FM_IMMS_PROJECT_IINPUTMETHODAGENT_H
+#ifndef FRAMEWORKS_INPUTMETHOD_ABILITY_INCLUDE_I_INPUT_METHOD_AGENT_H
+#define FRAMEWORKS_INPUTMETHOD_ABILITY_INCLUDE_I_INPUT_METHOD_AGENT_H
 
 #include "iremote_broker.h"
 #include "global.h"
diff --git a/frameworks/inputmethod_ability/include/i_input_method_core.h b/frameworks/inputmethod_ability/include/i_input_method_core.h
index 2d0c8c9..a9b2bc6 100644
--- a/frameworks/inputmethod_ability/include/i_input_method_core.h
+++ b/frameworks/inputmethod_ability/include/i_input_method_core.h
@@ -13,8 +13,8 @@
  * limitations under the License.
  */
 
-#ifndef FM_IMMS_PROJECT_IINPUTMETHODCORE_H
-#define FM_IMMS_PROJECT_IINPUTMETHODCORE_H
+#ifndef FRAMEWORKS_INPUTMETHOD_ABILITY_INCLUDE_I_INPUT_METHOD_CORE_H
+#define FRAMEWORKS_INPUTMETHOD_ABILITY_INCLUDE_I_INPUT_METHOD_CORE_H
 #include "iremote_broker.h"
 #include "i_input_data_channel.h"
 #include "i_input_control_channel.h"
diff --git a/frameworks/inputmethod_ability/include/input_method_ability.h b/frameworks/inputmethod_ability/include/input_method_ability.h
index 748ada6..026990d 100644
--- a/frameworks/inputmethod_ability/include/input_method_ability.h
+++ b/frameworks/inputmethod_ability/include/input_method_ability.h
@@ -13,8 +13,8 @@
  * limitations under the License.
  */
 
-#ifndef FM_IMMS_PROJECT_INPUTMETHODABILITY_H
-#define FM_IMMS_PROJECT_INPUTMETHODABILITY_H
+#ifndef FRAMEWORKS_INPUTMETHOD_ABILITY_INCLUDE_INPUT_METHOD_ABILITY_H
+#define FRAMEWORKS_INPUTMETHOD_ABILITY_INCLUDE_INPUT_METHOD_ABILITY_H
 
 #include <thread>
 #include "js_input_method_engine_listener.h"
diff --git a/frameworks/inputmethod_ability/include/input_method_agent_proxy.h b/frameworks/inputmethod_ability/include/input_method_agent_proxy.h
index 80452ad..425b729 100644
--- a/frameworks/inputmethod_ability/include/input_method_agent_proxy.h
+++ b/frameworks/inputmethod_ability/include/input_method_agent_proxy.h
@@ -13,8 +13,8 @@
  * limitations under the License.
  */
 
-#ifndef FM_IMC_PROJECT_INPUTMETHODAGENTPROXY_H
-#define FM_IMC_PROJECT_INPUTMETHODAGENTPROXY_H
+#ifndef FRAMEWORKS_INPUTMETHOD_ABILITY_INCLUDE_INPUT_METHOD_AGENT_PROXY_H
+#define FRAMEWORKS_INPUTMETHOD_ABILITY_INCLUDE_INPUT_METHOD_AGENT_PROXY_H
 
 #include "iremote_proxy.h"
 #include "i_input_method_agent.h"
diff --git a/frameworks/inputmethod_ability/include/input_method_agent_stub.h b/frameworks/inputmethod_ability/include/input_method_agent_stub.h
index e49c88e..b247aab 100644
--- a/frameworks/inputmethod_ability/include/input_method_agent_stub.h
+++ b/frameworks/inputmethod_ability/include/input_method_agent_stub.h
@@ -13,8 +13,8 @@
  * limitations under the License.
  */
 
-#ifndef FM_IMC_PROJECT_INPUTMETHODAGENTSTUB_H
-#define FM_IMC_PROJECT_INPUTMETHODAGENTSTUB_H
+#ifndef FRAMEWORKS_INPUTMETHOD_ABILITY_INCLUDE_INPUT_METHOD_AGENT_STUB_H
+#define FRAMEWORKS_INPUTMETHOD_ABILITY_INCLUDE_INPUT_METHOD_AGENT_STUB_H
 
 #include "iremote_stub.h"
 #include "message_parcel.h"
diff --git a/frameworks/inputmethod_ability/include/input_method_core_proxy.h b/frameworks/inputmethod_ability/include/input_method_core_proxy.h
index 2afe62b..7f1f09b 100644
--- a/frameworks/inputmethod_ability/include/input_method_core_proxy.h
+++ b/frameworks/inputmethod_ability/include/input_method_core_proxy.h
@@ -13,8 +13,8 @@
  * limitations under the License.
  */
 
-#ifndef FM_IMC_PROJECT_INPUTMETHODCOREPROXY_H
-#define FM_IMC_PROJECT_INPUTMETHODCOREPROXY_H
+#ifndef FRAMEWORKS_INPUTMETHOD_ABILITY_INCLUDE_INPUT_METHOD_CORE_PROXY_H
+#define FRAMEWORKS_INPUTMETHOD_ABILITY_INCLUDE_INPUT_METHOD_CORE_PROXY_H
 
 #include "iremote_proxy.h"
 #include "iremote_object.h"
diff --git a/frameworks/inputmethod_ability/include/input_method_core_stub.h b/frameworks/inputmethod_ability/include/input_method_core_stub.h
index eddec19..5d10014 100644
--- a/frameworks/inputmethod_ability/include/input_method_core_stub.h
+++ b/frameworks/inputmethod_ability/include/input_method_core_stub.h
@@ -13,8 +13,8 @@
  * limitations under the License.
  */
 
-#ifndef FM_IMMS_PROJECT_INPUTCONTROLCHANNEL_SK_H
-#define FM_IMMS_PROJECT_INPUTCONTROLCHANNEL_SK_H
+#ifndef FRAMEWORKS_INPUTMETHOD_ABILITY_INCLUDE_INPUT_METHOD_CORE_STUB_H
+#define FRAMEWORKS_INPUTMETHOD_ABILITY_INCLUDE_INPUT_METHOD_CORE_STUB_H
 
 #include <mutex>
 #include <condition_variable>
diff --git a/frameworks/inputmethod_ability/src/input_method_ability.cpp b/frameworks/inputmethod_ability/src/input_method_ability.cpp
index 546660a..32fad04 100644
--- a/frameworks/inputmethod_ability/src/input_method_ability.cpp
+++ b/frameworks/inputmethod_ability/src/input_method_ability.cpp
@@ -41,7 +41,7 @@ namespace MiscServices {
     {
         IMSA_HILOGI("InputMethodAbility::~InputMethodAbility");
         instance_ = nullptr;
-        if (msgHandler != nullptr) {
+        if (msgHandler) {
             delete msgHandler;
             msgHandler = nullptr;
         }
@@ -51,9 +51,9 @@ namespace MiscServices {
     sptr<InputMethodAbility> InputMethodAbility::GetInstance()
     {
         IMSA_HILOGI("InputMethodAbility::GetInstance");
-        if (instance_ == nullptr) {
+        if (!instance_) {
             std::lock_guard<std::mutex> autoLock(instanceLock_);
-            if (instance_ == nullptr) {
+            if (!instance_) {
                 IMSA_HILOGI("InputMethodAbility::GetInstance need new IMA");
                 instance_ = new InputMethodAbility();
             }
@@ -66,13 +66,13 @@ namespace MiscServices {
         IMSA_HILOGI("InputMethodAbility::GetImsaProxy");
         sptr<ISystemAbilityManager> systemAbilityManager =
             SystemAbilityManagerClient::GetInstance().GetSystemAbilityManager();
-        if (systemAbilityManager == nullptr) {
+        if (!systemAbilityManager) {
             IMSA_HILOGI("InputMethodAbility::GetImsaProxy systemAbilityManager is nullptr");
             return nullptr;
         }
 
         auto systemAbility = systemAbilityManager->GetSystemAbility(INPUT_METHOD_SYSTEM_ABILITY_ID, "");
-        if (systemAbility == nullptr) {
+        if (!systemAbility) {
             IMSA_HILOGI("InputMethodAbility::GetImsaProxy systemAbility is nullptr");
             return nullptr;
         }
@@ -85,7 +85,7 @@ namespace MiscServices {
     {
         IMSA_HILOGI("InputMethodAbility::SetCoreAndAgent");
         mImms = GetImsaProxy();
-        if (mImms == nullptr) {
+        if (!mImms) {
             IMSA_HILOGI("InputMethodAbility::SetCoreAndAgent() mImms is nullptr");
             return;
         }
@@ -120,7 +120,7 @@ namespace MiscServices {
     void InputMethodAbility::setImeListener(sptr<JsInputMethodEngineListener> &imeListener)
     {
         IMSA_HILOGI("InputMethodAbility::setImeListener");
-        if (imeListener_ == nullptr) {
+        if (!imeListener_) {
             imeListener_ = imeListener;
         }
     }
@@ -128,7 +128,7 @@ namespace MiscServices {
     void InputMethodAbility::setKdListener(sptr<JsKeyboardDelegateListener> &kdListener)
     {
         IMSA_HILOGI("InputMethodAbility::setKdListener");
-        if (kdListener_ == nullptr) {
+        if (!kdListener_) {
             kdListener_ = kdListener;
         }
     }
@@ -178,7 +178,7 @@ namespace MiscServices {
                 case MSG_ID_STOP_INPUT_SERVICE:{
                     MessageParcel *data = msg->msgContent_;
                     std::string imeId = Str16ToStr8(data->ReadString16());
-                    if (imeListener_ != nullptr) {
+                    if (imeListener_) {
                         imeListener_->OnInputStop(imeId);
                     }
                     break;
@@ -198,13 +198,13 @@ namespace MiscServices {
         MessageParcel *data = msg->msgContent_;
         displyId = data->ReadInt32();
         sptr<IRemoteObject> channelObject = data->ReadRemoteObject();
-        if (channelObject == nullptr) {
+        if (!channelObject) {
             IMSA_HILOGI("InputMethodAbility::OnInitialInput channelObject is nullptr");
             return;
         }
         sptr<InputControlChannelProxy> channelProxy = new InputControlChannelProxy(channelObject);
         inputControlChannel = channelProxy;
-        if (inputControlChannel == nullptr) {
+        if (!inputControlChannel) {
             IMSA_HILOGI("InputMethodAbility::OnInitialInput inputControlChannel is nullptr");
             return;
         }
@@ -215,13 +215,13 @@ namespace MiscServices {
         IMSA_HILOGI("InputMethodAbility::OnInitInputControlChannel");
         MessageParcel *data = msg->msgContent_;
         sptr<IRemoteObject> channelObject = data->ReadRemoteObject();
-        if (channelObject == nullptr) {
+        if (!channelObject) {
             IMSA_HILOGI("InputMethodAbility::OnInitInputControlChannel channelObject is nullptr");
             return;
         }
         sptr<InputControlChannelProxy> channelProxy = new InputControlChannelProxy(channelObject);
         inputControlChannel = channelProxy;
-        if (inputControlChannel == nullptr) {
+        if (!inputControlChannel) {
             IMSA_HILOGI("InputMethodAbility::OnInitInputControlChannel inputControlChannel is nullptr");
         }
     }
@@ -232,11 +232,12 @@ namespace MiscServices {
         MessageParcel *data = msg->msgContent_;
         sptr<InputDataChannelProxy> channalProxy = new InputDataChannelProxy(data->ReadRemoteObject());
         inputDataChannel = channalProxy;
-        if (inputDataChannel == nullptr) {
+        if (!inputDataChannel) {
             IMSA_HILOGI("InputMethodAbility::OnStartInput inputDataChannel is nullptr");
+            return;
         }
         editorAttribute = data->ReadParcelable<InputAttribute>();
-        if (editorAttribute == nullptr) {
+        if (!editorAttribute) {
             IMSA_HILOGI("InputMethodAbility::OnStartInput editorAttribute is nullptr");
         }
         mSupportPhysicalKbd = data->ReadBool();
@@ -248,7 +249,7 @@ namespace MiscServices {
         MessageParcel *data = msg->msgContent_;
         sptr<InputDataChannelProxy> channalProxy = new InputDataChannelProxy(data->ReadRemoteObject());
         inputDataChannel = channalProxy;
-        if (inputDataChannel == nullptr) {
+        if (!inputDataChannel) {
             IMSA_HILOGI("InputMethodAbility::OnShowKeyboard inputDataChannel is nullptr");
         }
         ShowInputWindow();
@@ -263,7 +264,7 @@ namespace MiscServices {
     void InputMethodAbility::OnStopInput(Message *msg)
     {
         IMSA_HILOGI("InputMethodAbility::OnStopInput");
-        if (writeInputChannel != nullptr) {
+        if (writeInputChannel) {
             delete writeInputChannel;
             writeInputChannel = nullptr;
         }
@@ -277,7 +278,7 @@ namespace MiscServices {
             IMSA_HILOGI("InputMethodAbility::DispatchKeyEvent abort. no client");
             return false;
         }
-        if (kdListener_ == nullptr) {
+        if (!kdListener_) {
             IMSA_HILOGI("InputMethodAbility::DispatchKeyEvent kdListener_ is nullptr");
             return false;
         }
@@ -291,7 +292,7 @@ namespace MiscServices {
         int32_t positionX = data->ReadInt32();
         int32_t positionY = data->ReadInt32();
         int32_t height = data->ReadInt32();
-        if (kdListener_ == nullptr) {
+        if (!kdListener_) {
             IMSA_HILOGI("InputMethodAbility::OnCursorUpdate kdListener_ is nullptr");
             return;
         }
@@ -308,7 +309,7 @@ namespace MiscServices {
         int32_t newBegin = data->ReadInt32();
         int32_t newEnd = data->ReadInt32();
 
-        if (kdListener_ == nullptr) {
+        if (!kdListener_) {
             IMSA_HILOGI("InputMethodAbility::OnSelectionChange kdListener_ is nullptr");
             return;
         }
@@ -320,13 +321,13 @@ namespace MiscServices {
     void InputMethodAbility::ShowInputWindow()
     {
         IMSA_HILOGI("InputMethodAbility::ShowInputWindow");
-        if (imeListener_ == nullptr) {
+        if (!imeListener_) {
             IMSA_HILOGI("InputMethodAbility::ShowInputWindow imeListener_ is nullptr");
             return;
         }
         imeListener_->OnInputStart();
         imeListener_->OnKeyboardStatus(true);
-        if (inputDataChannel != nullptr) {
+        if (inputDataChannel) {
             inputDataChannel->SendKeyboardStatus(KEYBOARD_SHOW);
         }
     }
@@ -334,12 +335,12 @@ namespace MiscServices {
     void InputMethodAbility::DissmissInputWindow()
     {
         IMSA_HILOGI("InputMethodAbility::DissmissInputWindow");
-        if (imeListener_ == nullptr) {
+        if (!imeListener_) {
             IMSA_HILOGI("InputMethodAbility::DissmissInputWindow imeListener_ is nullptr");
             return;
         }
         imeListener_->OnKeyboardStatus(false);
-        if (inputDataChannel != nullptr) {
+        if (inputDataChannel) {
             inputDataChannel->SendKeyboardStatus(KEYBOARD_HIDE);
         }
     }
@@ -347,7 +348,7 @@ namespace MiscServices {
     bool InputMethodAbility::InsertText(const std::string text)
     {
         IMSA_HILOGI("InputMethodAbility::InsertText");
-        if (inputDataChannel == nullptr) {
+        if (!inputDataChannel) {
             IMSA_HILOGI("InputMethodAbility::InsertText inputDataChanel is nullptr");
             return false;
         }
@@ -358,7 +359,7 @@ namespace MiscServices {
     void InputMethodAbility::DeleteForward(int32_t length)
     {
         IMSA_HILOGI("InputMethodAbility::DeleteForward");
-        if (inputDataChannel == nullptr) {
+        if (!inputDataChannel) {
             IMSA_HILOGI("InputMethodAbility::DeleteForward inputDataChanel is nullptr");
             return;
         }
@@ -368,7 +369,7 @@ namespace MiscServices {
     void InputMethodAbility::DeleteBackward(int32_t length)
     {
         IMSA_HILOGI("InputMethodAbility::DeleteBackward");
-        if (inputDataChannel == nullptr) {
+        if (!inputDataChannel) {
             IMSA_HILOGI("InputMethodAbility::DeleteBackward inputDataChanel is nullptr");
             return;
         }
@@ -378,7 +379,7 @@ namespace MiscServices {
     void InputMethodAbility::SendFunctionKey(int32_t funcKey)
     {
         IMSA_HILOGI("InputMethodAbility::SendFunctionKey");
-        if (inputDataChannel == nullptr) {
+        if (!inputDataChannel) {
             IMSA_HILOGI("InputMethodAbility::SendFunctionKey inputDataChanel is nullptr");
             return;
         }
@@ -395,7 +396,7 @@ namespace MiscServices {
     {
         IMSA_HILOGI("InputMethodAbility::GetTextBeforeCursor");
 
-        if (inputDataChannel == nullptr) {
+        if (!inputDataChannel) {
             IMSA_HILOGI("InputMethodAbility::GetTextBeforeCursor inputDataChanel is nullptr");
             return u"";
         }
@@ -406,7 +407,7 @@ namespace MiscServices {
     {
         IMSA_HILOGI("InputMethodAbility::GetTextAfterCursor");
 
-        if (inputDataChannel == nullptr) {
+        if (!inputDataChannel) {
             IMSA_HILOGI("InputMethodAbility::GetTextAfterCursor inputDataChanel is nullptr");
             return u"";
         }
@@ -417,7 +418,7 @@ namespace MiscServices {
     {
         IMSA_HILOGI("InputMethodAbility::MoveCursor");
 
-        if (inputDataChannel == nullptr) {
+        if (!inputDataChannel) {
             IMSA_HILOGI("InputMethodAbility::MoveCursor inputDataChanel is nullptr");
             return;
         }
@@ -430,7 +431,7 @@ namespace MiscServices {
     {
         IMSA_HILOGI("InputMethodAbility::GetEnterKeyType");
 
-        if (inputDataChannel == nullptr) {
+        if (!inputDataChannel) {
             IMSA_HILOGI("InputMethodAbility::GetEnterKeyType inputDataChanel is nullptr");
             return 0;
         }
@@ -441,7 +442,7 @@ namespace MiscServices {
     {
         IMSA_HILOGI("InputMethodAbility::GetInputPattern");
 
-        if (inputDataChannel == nullptr) {
+        if (!inputDataChannel) {
             IMSA_HILOGI("InputMethodAbility::GetInputPattern inputDataChanel is nullptr");
             return 0;
         }
@@ -452,7 +453,7 @@ namespace MiscServices {
     {
         IMSA_HILOGI("InputMethodAbility::StopInput");
 
-        if (inputDataChannel == nullptr) {
+        if (!inputDataChannel) {
             IMSA_HILOGI("InputMethodAbility::StopInput inputDataChanel is nullptr");
             return;
         }
diff --git a/frameworks/inputmethod_ability/src/input_method_agent_stub.cpp b/frameworks/inputmethod_ability/src/input_method_agent_stub.cpp
index ee02c32..099ae66 100644
--- a/frameworks/inputmethod_ability/src/input_method_agent_stub.cpp
+++ b/frameworks/inputmethod_ability/src/input_method_agent_stub.cpp
@@ -75,7 +75,7 @@ namespace MiscServices {
     bool InputMethodAgentStub::DispatchKeyEvent(MessageParcel& data)
     {
         IMSA_HILOGI("InputMethodAgentStub::DispatchKeyEvent");
-        if (msgHandler_ == nullptr) {
+        if (!msgHandler_) {
             return false;
         }
         return InputMethodAbility::GetInstance()->DispatchKeyEvent(data.ReadInt32(), data.ReadInt32());
@@ -84,7 +84,7 @@ namespace MiscServices {
     void InputMethodAgentStub::OnCursorUpdate(int32_t positionX, int32_t positionY, int height)
     {
         IMSA_HILOGI("InputMethodAgentStub::OnCursorUpdate");
-        if (msgHandler_ == nullptr) {
+        if (!msgHandler_) {
             return;
         }
         MessageParcel *data = new MessageParcel();
@@ -99,7 +99,7 @@ namespace MiscServices {
                                                  int32_t newBegin, int32_t newEnd)
     {
         IMSA_HILOGI("InputMethodAgentStub::OnSelectionChange");
-        if (msgHandler_ == nullptr) {
+        if (!msgHandler_) {
             return;
         }
         MessageParcel *data = new MessageParcel();
diff --git a/frameworks/inputmethod_ability/src/input_method_core_proxy.cpp b/frameworks/inputmethod_ability/src/input_method_core_proxy.cpp
index 9af050f..28e333f 100644
--- a/frameworks/inputmethod_ability/src/input_method_core_proxy.cpp
+++ b/frameworks/inputmethod_ability/src/input_method_core_proxy.cpp
@@ -33,15 +33,15 @@ namespace MiscServices {
     {
         IMSA_HILOGI("InputMethodCoreProxy::initializeInput");
         auto remote = Remote();
-        if (remote == nullptr) {
+        if (!remote) {
             IMSA_HILOGI("remote is nullptr");
             return ErrorCode::ERROR_NULL_POINTER;
         }
-        if (startInputToken == nullptr) {
+        if (!startInputToken) {
             IMSA_HILOGI("InputMethodCoreProxy::initializeInput startInputToken is nullptr");
         }
 
-        if (inputControlChannel == nullptr) {
+        if (!inputControlChannel) {
             IMSA_HILOGI("InputMethodCoreProxy::initializeInput inputControlChannel is nullptr");
             return ErrorCode::ERROR_NULL_POINTER;
         }
@@ -50,7 +50,7 @@ namespace MiscServices {
         data.WriteInterfaceToken(GetDescriptor());
         data.WriteInt32(displayId);
         sptr<IRemoteObject> channelObject = inputControlChannel->AsObject();
-        if (channelObject == nullptr) {
+        if (!channelObject) {
             IMSA_HILOGI("InputMethodCoreProxy::initializeInput channelObject is nullptr");
             return ErrorCode::ERROR_NULL_POINTER;
         }
@@ -76,18 +76,18 @@ namespace MiscServices {
     {
         IMSA_HILOGI("InputMethodCoreProxy::InitInputControlChannel");
         auto remote = Remote();
-        if (remote == nullptr) {
+        if (!remote) {
             IMSA_HILOGI("remote is nullptr");
             return ErrorCode::ERROR_NULL_POINTER;
         }
-        if (inputControlChannel == nullptr) {
+        if (!inputControlChannel) {
             IMSA_HILOGI("InputMethodCoreProxy::InitInputControlChannel inputControlChannel is nullptr");
             return ErrorCode::ERROR_EX_NULL_POINTER;
         }
         MessageParcel data, reply;
         data.WriteInterfaceToken(GetDescriptor());
         sptr<IRemoteObject> channelObject = inputControlChannel->AsObject();
-        if (channelObject == nullptr) {
+        if (!channelObject) {
             IMSA_HILOGI("InputMethodCoreProxy::InitInputControlChannel channelObject is nullptr");
             return ErrorCode::ERROR_EX_NULL_POINTER;
         }
@@ -108,7 +108,7 @@ namespace MiscServices {
     {
         IMSA_HILOGI("InputMethodCoreProxy::SetClientState");
         auto remote = Remote();
-        if (remote == nullptr) {
+        if (!remote) {
             IMSA_HILOGI("remote is nullptr");
             return;
         }
@@ -133,11 +133,11 @@ namespace MiscServices {
     {
         IMSA_HILOGI("InputMethodCoreProxy::startInput");
         auto remote = Remote();
-        if (remote == nullptr) {
+        if (!remote) {
             IMSA_HILOGI("remote is nullptr");
             return false;
         }
-        if (inputDataChannel == nullptr) {
+        if (!inputDataChannel) {
             IMSA_HILOGI("InputMethodCoreProxy::startInput inputDataChannel is nullptr");
             return false;
         }
@@ -169,7 +169,7 @@ namespace MiscServices {
     {
         IMSA_HILOGI("InputMethodCoreProxy::stopInput");
         auto remote = Remote();
-        if (remote == nullptr) {
+        if (!remote) {
             IMSA_HILOGI("remote is nullptr");
             return ErrorCode::ERROR_NULL_POINTER;
         }
@@ -195,7 +195,7 @@ namespace MiscServices {
     {
         IMSA_HILOGI("InputMethodCoreProxy::showKeyboard");
         auto remote = Remote();
-        if (remote == nullptr) {
+        if (!remote) {
             IMSA_HILOGI("InputMethodCoreProxy::showKeyboard remote is nullptr");
             return false;
         }
@@ -221,7 +221,7 @@ namespace MiscServices {
     {
         IMSA_HILOGI("InputMethodCoreProxy::StopInputService");
         auto remote = Remote();
-        if (remote == nullptr) {
+        if (!remote) {
             IMSA_HILOGI("InputMethodCoreProxy::StopInputService remote is nullptr");
             return;
         }
@@ -245,7 +245,7 @@ namespace MiscServices {
     {
         IMSA_HILOGI("InputMethodCoreProxy::hideKeyboard");
         auto remote = Remote();
-        if (remote == nullptr) {
+        if (!remote) {
             return false;
         }
 
@@ -269,7 +269,7 @@ namespace MiscServices {
     {
         IMSA_HILOGI("InputMethodCoreProxy::setKeyboardType");
         auto remote = Remote();
-        if (remote == nullptr) {
+        if (!remote) {
             IMSA_HILOGI("remote is nullptr");
             return ErrorCode::ERROR_NULL_POINTER;
         }
@@ -291,7 +291,7 @@ namespace MiscServices {
     {
         IMSA_HILOGI("InputMethodCoreProxy::getKeyboardWindowHeight");
         auto remote = Remote();
-        if (remote == nullptr) {
+        if (!remote) {
             IMSA_HILOGI("remote is nullptr");
             return ErrorCode::ERROR_NULL_POINTER;
         }
@@ -305,7 +305,7 @@ namespace MiscServices {
             return status;
         }
         int32_t code = reply.ReadException();
-        if (code != 0) {
+        if (code) {
             return code;
         }
         retHeight = reply.ReadInt32();
diff --git a/frameworks/inputmethod_ability/src/input_method_core_stub.cpp b/frameworks/inputmethod_ability/src/input_method_core_stub.cpp
index 6e1eeb6..8c0484d 100644
--- a/frameworks/inputmethod_ability/src/input_method_core_stub.cpp
+++ b/frameworks/inputmethod_ability/src/input_method_core_stub.cpp
@@ -57,11 +57,11 @@ namespace MiscServices {
                 int32_t displayId = data.ReadInt32();
                 IMSA_HILOGI("InputMethodCoreStub::OnRemoteRequest displayId = %{public}d", displayId);
                 sptr<IRemoteObject> channelObject = data.ReadRemoteObject();
-                if (channelObject == nullptr) {
+                if (!channelObject) {
                     IMSA_HILOGI("InputMethodCoreStub::OnRemoteRequest channelObject is nullptr");
                 }
                 sptr<IInputControlChannel> inputControlChannel = new InputControlChannelProxy(channelObject);
-                if (inputControlChannel == nullptr) {
+                if (!inputControlChannel) {
                     IMSA_HILOGI("InputMethodCoreStub::OnRemoteRequest inputControlChannel is nullptr");
                 }
 
@@ -71,11 +71,11 @@ namespace MiscServices {
             }
             case INIT_INPUT_CONTROL_CHANNEL: {
                 sptr<IRemoteObject> channelObject = data.ReadRemoteObject();
-                if (channelObject == nullptr) {
+                if (!channelObject) {
                     IMSA_HILOGI("InputMethodCoreStub::OnRemoteRequest channelObject is nullptr");
                 }
                 sptr<IInputControlChannel> inputControlChannel = new InputControlChannelProxy(channelObject);
-                if (inputControlChannel == nullptr) {
+                if (!inputControlChannel) {
                     IMSA_HILOGI("InputMethodCoreStub::OnRemoteRequest inputControlChannel is nullptr");
                 }
 
@@ -88,7 +88,7 @@ namespace MiscServices {
                 InputAttribute *editorAttribute = data.ReadParcelable<InputAttribute>();
                 bool supportPhysicalKbd = data.ReadBool();
 
-                if (inputDataChannel == nullptr) {
+                if (!inputDataChannel) {
                     IMSA_HILOGI("InputMethodCoreStub::OnRemoteRequest START_INPUT inputDataChannel is nulltpr");
                 }
                 startInput(inputDataChannel, *editorAttribute, supportPhysicalKbd);
@@ -148,17 +148,17 @@ namespace MiscServices {
         sptr<IInputControlChannel>& inputControlChannel)
     {
         IMSA_HILOGI("InputMethodCoreStub::initializeInput");
-        if (msgHandler_ == nullptr) {
+        if (!msgHandler_) {
             return ErrorCode::ERROR_NULL_POINTER;
         }
 
-        if (startInputToken == nullptr) {
+        if (!startInputToken) {
             IMSA_HILOGI("InputMethodCoreStub::initializeInput startInputToken is nullptr");
         }
 
         MessageParcel *data = new MessageParcel();
         data->WriteInt32(displayId);
-        if (inputControlChannel != nullptr) {
+        if (inputControlChannel) {
             IMSA_HILOGI("InputMethodCoreStub::initializeInput. inputControlChannel is not nullptr");
             data->WriteRemoteObject(inputControlChannel->AsObject());
         }
@@ -170,12 +170,12 @@ namespace MiscServices {
     int32_t InputMethodCoreStub::InitInputControlChannel(sptr<IInputControlChannel>& inputControlChannel)
     {
         IMSA_HILOGI("InputMethodCoreStub::initializeInput");
-        if (msgHandler_ == nullptr) {
+        if (!msgHandler_) {
             return ErrorCode::ERROR_NULL_POINTER;
         }
 
         MessageParcel *data = new MessageParcel();
-        if (inputControlChannel != nullptr) {
+        if (inputControlChannel) {
             IMSA_HILOGI("InputMethodCoreStub::initializeInput. inputControlChannel is not nullptr");
             data->WriteRemoteObject(inputControlChannel->AsObject());
         }
@@ -188,11 +188,11 @@ namespace MiscServices {
         const InputAttribute& editorAttribute, bool supportPhysicalKbd)
     {
         IMSA_HILOGI("InputMethodCoreStub::startInput");
-        if (msgHandler_ == nullptr) {
+        if (!msgHandler_) {
             return ErrorCode::ERROR_NULL_POINTER;
         }
         MessageParcel *data = new MessageParcel();
-        if (inputDataChannel != nullptr) {
+        if (inputDataChannel) {
             IMSA_HILOGI("InputMethodCoreStub::startInput inputDataChannel is not nullptr");
             data->WriteRemoteObject(inputDataChannel->AsObject());
         }
@@ -206,7 +206,7 @@ namespace MiscServices {
     int32_t InputMethodCoreStub::stopInput()
     {
         IMSA_HILOGI("InputMethodCoreStub::stopInput");
-        if (msgHandler_ == nullptr) {
+        if (!msgHandler_) {
             return ErrorCode::ERROR_NULL_POINTER;
         }
         MessageParcel *data = new MessageParcel();
@@ -218,7 +218,7 @@ namespace MiscServices {
     void InputMethodCoreStub::SetClientState(bool state)
     {
         IMSA_HILOGI("InputMethodCoreStub::SetClientState");
-        if (msgHandler_ == nullptr) {
+        if (!msgHandler_) {
             return;
         }
         MessageParcel *data = new MessageParcel();
@@ -231,11 +231,11 @@ namespace MiscServices {
     bool InputMethodCoreStub::showKeyboard(const sptr<IInputDataChannel>& inputDataChannel)
     {
         IMSA_HILOGI("InputMethodCoreStub::showKeyboard");
-        if (msgHandler_ == nullptr) {
+        if (!msgHandler_) {
             return false;
         }
         MessageParcel *data = new MessageParcel();
-        if (inputDataChannel != nullptr) {
+        if (inputDataChannel) {
             IMSA_HILOGI("InputMethodCoreStub::showKeyboard inputDataChannel is not nullptr");
             data->WriteRemoteObject(inputDataChannel->AsObject());
         }
@@ -248,7 +248,7 @@ namespace MiscServices {
     bool InputMethodCoreStub::hideKeyboard(int32_t flags)
     {
         IMSA_HILOGI("InputMethodCoreStub::hideKeyboard");
-        if (msgHandler_ == nullptr) {
+        if (!msgHandler_) {
             return ErrorCode::ERROR_NULL_POINTER;
         }
         MessageParcel *data = new MessageParcel();
@@ -263,7 +263,7 @@ namespace MiscServices {
     int32_t InputMethodCoreStub::setKeyboardType(const KeyboardType& type)
     {
         IMSA_HILOGI("InputMethodCoreStub::setKeyboardType");
-        if (msgHandler_ == nullptr) {
+        if (!msgHandler_) {
             return ErrorCode::ERROR_NULL_POINTER;
         }
         MessageParcel *data = new MessageParcel();
@@ -277,7 +277,7 @@ namespace MiscServices {
     void InputMethodCoreStub::StopInputService(std::string imeId)
     {
         IMSA_HILOGI("InputMethodCoreStub::StopInputService");
-        if (msgHandler_ == nullptr) {
+        if (!msgHandler_) {
             return;
         }
         MessageParcel *data = new MessageParcel();
@@ -290,7 +290,7 @@ namespace MiscServices {
     int32_t InputMethodCoreStub::getKeyboardWindowHeight(int32_t retHeight)
     {
         IMSA_HILOGI("InputMethodCoreStub::getKeyboardWindowHeight");
-        if (msgHandler_ == nullptr) {
+        if (!msgHandler_) {
             return ErrorCode::ERROR_NULL_POINTER;
         }
         MessageParcel *data = new MessageParcel();
diff --git a/frameworks/inputmethod_controller/include/i_input_client.h b/frameworks/inputmethod_controller/include/i_input_client.h
index 009c304..48e6c29 100644
--- a/frameworks/inputmethod_controller/include/i_input_client.h
+++ b/frameworks/inputmethod_controller/include/i_input_client.h
@@ -13,8 +13,8 @@
  * limitations under the License.
  */
 
-#ifndef FM_IMMS_PROJECT_IINPUTCLIENT_H
-#define FM_IMMS_PROJECT_IINPUTCLIENT_H
+#ifndef FRAMEWORKS_INPUTMETHOD_CONTROLLER_INCLUDE_I_INPUT_CLIENT_H
+#define FRAMEWORKS_INPUTMETHOD_CONTROLLER_INCLUDE_I_INPUT_CLIENT_H
 
 #include "iremote_broker.h"
 #include "i_input_method_agent.h"
diff --git a/frameworks/inputmethod_controller/include/i_input_data_channel.h b/frameworks/inputmethod_controller/include/i_input_data_channel.h
index 4916a9b..8f6d45b 100644
--- a/frameworks/inputmethod_controller/include/i_input_data_channel.h
+++ b/frameworks/inputmethod_controller/include/i_input_data_channel.h
@@ -13,8 +13,8 @@
  * limitations under the License.
  */
 
-#ifndef FM_IMMS_PROJECT_IINPUTDATACHANNEL_H
-#define FM_IMMS_PROJECT_IINPUTDATACHANNEL_H
+#ifndef FRAMEWORKS_INPUTMETHOD_CONTROLLER_INCLUDE_I_INPUT_DATA_CHANNEL_H
+#define FRAMEWORKS_INPUTMETHOD_CONTROLLER_INCLUDE_I_INPUT_DATA_CHANNEL_H
 #include <errors.h>
 #include "iremote_broker.h"
 #include "global.h"
diff --git a/frameworks/inputmethod_controller/include/input_client_proxy.h b/frameworks/inputmethod_controller/include/input_client_proxy.h
index 4ac5603..fc1fcc4 100644
--- a/frameworks/inputmethod_controller/include/input_client_proxy.h
+++ b/frameworks/inputmethod_controller/include/input_client_proxy.h
@@ -14,8 +14,8 @@
  */
 
 
-#ifndef FM_IMC_PROJECT_INPUTCLIENTPROXY_H
-#define FM_IMC_PROJECT_INPUTCLIENTPROXY_H
+#ifndef FRAMEWORKS_INPUTMETHOD_CONTROLLER_INCLUDE_INPUT_CLIENT_PROXY_H
+#define FRAMEWORKS_INPUTMETHOD_CONTROLLER_INCLUDE_INPUT_CLIENT_PROXY_H
 
 #include "iremote_proxy.h"
 #include "i_input_client.h"
diff --git a/frameworks/inputmethod_controller/include/input_client_stub.h b/frameworks/inputmethod_controller/include/input_client_stub.h
index d18e716..5ccc71e 100644
--- a/frameworks/inputmethod_controller/include/input_client_stub.h
+++ b/frameworks/inputmethod_controller/include/input_client_stub.h
@@ -14,8 +14,8 @@
  */
 
 
-#ifndef FM_IMC_PROJECT_INPUTCLIENTSTUB_H
-#define FM_IMC_PROJECT_INPUTCLIENTSTUB_H
+#ifndef FRAMEWORKS_INPUTMETHOD_CONTROLLER_INCLUDE_INPUT_CLIENT_STUB_H
+#define FRAMEWORKS_INPUTMETHOD_CONTROLLER_INCLUDE_INPUT_CLIENT_STUB_H
 
 #include "iremote_stub.h"
 #include "i_input_client.h"
diff --git a/frameworks/inputmethod_controller/include/input_data_channel_proxy.h b/frameworks/inputmethod_controller/include/input_data_channel_proxy.h
index 78a43e5..5d26ae6 100644
--- a/frameworks/inputmethod_controller/include/input_data_channel_proxy.h
+++ b/frameworks/inputmethod_controller/include/input_data_channel_proxy.h
@@ -13,8 +13,8 @@
  * limitations under the License.
  */
 
-#ifndef FM_IMC_PROJECT_INPUTDATACHANNELPROXY_H
-#define FM_IMC_PROJECT_INPUTDATACHANNELPROXY_H
+#ifndef FRAMEWORKS_INPUTMETHOD_CONTROLLER_INCLUDE_INPUT_DATA_CHANNEL_PROXY_H
+#define FRAMEWORKS_INPUTMETHOD_CONTROLLER_INCLUDE_INPUT_DATA_CHANNEL_PROXY_H
 
 #include "iremote_proxy.h"
 #include "i_input_data_channel.h"
diff --git a/frameworks/inputmethod_controller/include/input_data_channel_stub.h b/frameworks/inputmethod_controller/include/input_data_channel_stub.h
index 3bf4999..68e1bba 100644
--- a/frameworks/inputmethod_controller/include/input_data_channel_stub.h
+++ b/frameworks/inputmethod_controller/include/input_data_channel_stub.h
@@ -14,8 +14,8 @@
  */
 
 
-#ifndef FM_IMC_PROJECT_INPUTDATACHANNELSTUB_H
-#define FM_IMC_PROJECT_INPUTDATACHANNELSTUB_H
+#ifndef FRAMEWORKS_INPUTMETHOD_CONTROLLER_INCLUDE_INPUT_DATA_CHANNEL_STUB_H
+#define FRAMEWORKS_INPUTMETHOD_CONTROLLER_INCLUDE_INPUT_DATA_CHANNEL_STUB_H
 
 #include "i_input_data_channel.h"
 #include "iremote_stub.h"
diff --git a/frameworks/inputmethod_controller/include/input_method_controller.h b/frameworks/inputmethod_controller/include/input_method_controller.h
index 0cc6e2e..3744a5b 100644
--- a/frameworks/inputmethod_controller/include/input_method_controller.h
+++ b/frameworks/inputmethod_controller/include/input_method_controller.h
@@ -14,8 +14,8 @@
  */
 
 
-#ifndef FM_IMC_PROJECT_INPUTMETHODCONTROLLER_H
-#define FM_IMC_PROJECT_INPUTMETHODCONTROLLER_H
+#ifndef FRAMEWORKS_INPUTMETHOD_CONTROLLER_INCLUDE_INPUT_METHOD_CONTROLLER_H
+#define FRAMEWORKS_INPUTMETHOD_CONTROLLER_INCLUDE_INPUT_METHOD_CONTROLLER_H
 
 #include <mutex>
 #include <thread>
diff --git a/frameworks/inputmethod_controller/include/input_method_system_ability_proxy.h b/frameworks/inputmethod_controller/include/input_method_system_ability_proxy.h
index 9f091ff..531cfc3 100644
--- a/frameworks/inputmethod_controller/include/input_method_system_ability_proxy.h
+++ b/frameworks/inputmethod_controller/include/input_method_system_ability_proxy.h
@@ -13,8 +13,8 @@
  * limitations under the License.
  */
 
-#ifndef FM_IMC_PROJECT_INPUTMETHODSYSTEMABILITYPROXY_H
-#define FM_IMC_PROJECT_INPUTMETHODSYSTEMABILITYPROXY_H
+#ifndef FRAMEWORKS_INPUTMETHOD_CONTROLLER_INCLUDE_INPUT_METHOD_SYSTEM_ABILITY_PROXY_H
+#define FRAMEWORKS_INPUTMETHOD_CONTROLLER_INCLUDE_INPUT_METHOD_SYSTEM_ABILITY_PROXY_H
 
 #include <vector>
 #include "iremote_proxy.h"
diff --git a/frameworks/inputmethod_controller/include/input_method_utils.h b/frameworks/inputmethod_controller/include/input_method_utils.h
index 24be150..8002421 100644
--- a/frameworks/inputmethod_controller/include/input_method_utils.h
+++ b/frameworks/inputmethod_controller/include/input_method_utils.h
@@ -13,8 +13,8 @@
  * limitations under the License.
  */
 
-#ifndef FM_IMC_PROJECT_INPUT_METHOD_UTILS_H
-#define FM_IMC_PROJECT_INPUT_METHOD_UTILS_H
+#ifndef FRAMEWORKS_INPUTMETHOD_CONTROLLER_INCLUDE_INPUT_METHOD_UTILS_H
+#define FRAMEWORKS_INPUTMETHOD_CONTROLLER_INCLUDE_INPUT_METHOD_UTILS_H
 
 #include <stdint.h>
 
diff --git a/frameworks/inputmethod_controller/src/input_client_stub.cpp b/frameworks/inputmethod_controller/src/input_client_stub.cpp
index 7c8ff3a..3db66b9 100644
--- a/frameworks/inputmethod_controller/src/input_client_stub.cpp
+++ b/frameworks/inputmethod_controller/src/input_client_stub.cpp
@@ -36,7 +36,7 @@ namespace MiscServices {
         }
         switch (code) {
             case ON_INPUT_READY: {
-                if (msgHandler == nullptr) {
+                if (!msgHandler) {
                     break;
                 }
                 MessageParcel *parcel = new MessageParcel();
@@ -47,7 +47,7 @@ namespace MiscServices {
                 break;
             }
             case ON_INPUT_RELEASED: {
-                if (msgHandler == nullptr) {
+                if (!msgHandler) {
                     break;
                 }
                 MessageParcel *parcel = new MessageParcel();
@@ -57,7 +57,7 @@ namespace MiscServices {
                 break;
             }
             case SET_DISPLAY_MODE: {
-                if (msgHandler == nullptr) {
+                if (!msgHandler) {
                     break;
                 }
                 MessageParcel *parcel = new MessageParcel();
diff --git a/frameworks/inputmethod_controller/src/input_data_channel_stub.cpp b/frameworks/inputmethod_controller/src/input_data_channel_stub.cpp
index 74b37af..577a121 100644
--- a/frameworks/inputmethod_controller/src/input_data_channel_stub.cpp
+++ b/frameworks/inputmethod_controller/src/input_data_channel_stub.cpp
@@ -24,7 +24,7 @@ namespace MiscServices {
 
     InputDataChannelStub::~InputDataChannelStub()
     {
-        if (msgHandler != nullptr) {
+        if (msgHandler) {
             delete msgHandler;
             msgHandler = nullptr;
         }
@@ -103,7 +103,7 @@ namespace MiscServices {
     bool InputDataChannelStub::InsertText(const std::u16string& text)
     {
         IMSA_HILOGI("InputDataChannelStub::InsertText");
-        if (msgHandler != nullptr) {
+        if (msgHandler) {
             MessageParcel *parcel = new MessageParcel;
             parcel->WriteString16(text);
             Message *msg = new Message(MessageID::MSG_ID_INSERT_CHAR, parcel);
@@ -117,7 +117,7 @@ namespace MiscServices {
     bool InputDataChannelStub::DeleteForward(int32_t length)
     {
         IMSA_HILOGI("InputDataChannelStub::DeleteForward");
-        if (msgHandler == nullptr) {
+        if (!msgHandler) {
             return false;
         }
         MessageParcel *parcel = new MessageParcel;
@@ -131,7 +131,7 @@ namespace MiscServices {
     bool InputDataChannelStub::DeleteBackward(int32_t length)
     {
         IMSA_HILOGI("InputDataChannelStub::DeleteBackward");
-        if (msgHandler != nullptr) {
+        if (msgHandler) {
             MessageParcel *parcel = new MessageParcel;
             parcel->WriteInt32(length);
             Message *msg = new Message(MessageID::MSG_ID_DELETE_BACKWARD, parcel);
@@ -178,7 +178,7 @@ namespace MiscServices {
     void InputDataChannelStub::SendKeyboardStatus(int32_t status)
     {
         IMSA_HILOGI("InputDataChannelStub::SendKeyboardStatus");
-        if (msgHandler != nullptr) {
+        if (msgHandler) {
             MessageParcel *parcel = new MessageParcel;
             parcel->WriteInt32(status);
             Message *msg = new Message(MessageID::MSG_ID_SEND_KEYBOARD_STATUS, parcel);
@@ -189,7 +189,7 @@ namespace MiscServices {
     void InputDataChannelStub::SendFunctionKey(int32_t funcKey)
     {
         IMSA_HILOGI("InputDataChannelStub::SendFunctionKey");
-        if (msgHandler != nullptr) {
+        if (msgHandler) {
             MessageParcel *parcel = new MessageParcel;
             parcel->WriteInt32(funcKey);
             Message *msg = new Message(MessageID::MSG_ID_SEND_FUNCTION_KEY, parcel);
@@ -200,7 +200,7 @@ namespace MiscServices {
     void InputDataChannelStub::MoveCursor(int32_t keyCode)
     {
         IMSA_HILOGI("InputDataChannelStub::MoveCursor");
-        if (msgHandler != nullptr) {
+        if (msgHandler) {
             MessageParcel *parcel = new MessageParcel;
             parcel->WriteInt32(keyCode);
             Message *msg = new Message(MessageID::MSG_ID_MOVE_CURSOR, parcel);
diff --git a/frameworks/inputmethod_controller/src/input_method_controller.cpp b/frameworks/inputmethod_controller/src/input_method_controller.cpp
index 8fba7ad..eab6588 100644
--- a/frameworks/inputmethod_controller/src/input_method_controller.cpp
+++ b/frameworks/inputmethod_controller/src/input_method_controller.cpp
@@ -32,7 +32,7 @@ using namespace MessageID;
 
     InputMethodController::~InputMethodController()
     {
-        if (msgHandler != nullptr) {
+        if (msgHandler) {
             delete msgHandler;
             msgHandler = nullptr;
             stop_ = false;
@@ -41,9 +41,9 @@ using namespace MessageID;
 
     sptr<InputMethodController> InputMethodController::GetInstance()
     {
-        if (instance_ == nullptr) {
+        if (!instance_) {
             std::lock_guard<std::mutex> autoLock(instanceLock_);
-            if (instance_ == nullptr) {
+            if (!instance_) {
                 IMSA_HILOGI("InputMethodController::GetInstance instance_ is nullptr");
                 instance_ = new InputMethodController();
             }
@@ -77,18 +77,18 @@ using namespace MessageID;
         IMSA_HILOGI("InputMethodController::GetImsaProxy");
         sptr<ISystemAbilityManager> systemAbilityManager =
             SystemAbilityManagerClient::GetInstance().GetSystemAbilityManager();
-        if (systemAbilityManager == nullptr) {
+        if (!systemAbilityManager) {
             IMSA_HILOGI("InputMethodController::GetImsaProxy systemAbilityManager is nullptr");
             return nullptr;
         }
 
         auto systemAbility = systemAbilityManager->GetSystemAbility(INPUT_METHOD_SYSTEM_ABILITY_ID, "");
-        if (systemAbility == nullptr) {
+        if (!systemAbility) {
             IMSA_HILOGI("InputMethodController::GetImsaProxy systemAbility is nullptr");
             return nullptr;
         }
 
-        if (deathRecipient_ == nullptr) {
+        if (!deathRecipient_) {
             deathRecipient_ = new ImsaDeathRecipient();
         }
         systemAbility->AddDeathRecipient(deathRecipient_);
@@ -106,7 +106,7 @@ using namespace MessageID;
                     MessageParcel *data = msg->msgContent_;
                     std::u16string text = data->ReadString16();
 		    IMSA_HILOGI("InputMethodController::WorkThread InsertText");
-                    if (textListener != nullptr) {
+                    if (textListener) {
                         textListener->InsertText(text);
                     }
                     break;
@@ -116,7 +116,7 @@ using namespace MessageID;
                     MessageParcel *data = msg->msgContent_;
                     int32_t length = data->ReadInt32();
 		    IMSA_HILOGI("InputMethodController::WorkThread DeleteForward");
-                    if (textListener != nullptr) {
+                    if (textListener) {
                         textListener->DeleteForward(length);
                     }
                     break;
@@ -125,7 +125,7 @@ using namespace MessageID;
                     MessageParcel *data = msg->msgContent_;
                     int32_t length = data->ReadInt32();
 		    IMSA_HILOGI("InputMethodController::WorkThread DeleteBackward");
-                    if (textListener != nullptr) {
+                    if (textListener) {
                         textListener->DeleteBackward(length);
                     }
                     break;
@@ -139,7 +139,7 @@ using namespace MessageID;
                 case MSG_ID_ON_INPUT_READY: {
                     MessageParcel *data = msg->msgContent_;
                     sptr<IRemoteObject> object = data->ReadRemoteObject();
-                    if (object != nullptr) {
+                    if (object) {
                         mAgent = new InputMethodAgentProxy(object);
                     }
                     break;
@@ -157,7 +157,7 @@ using namespace MessageID;
                     KeyboardInfo *info = new KeyboardInfo();
                     info->SetKeyboardStatus(ret);
                     IMSA_HILOGI("InputMethodController::WorkThread SendKeyboardInfo");
-                    if (textListener != nullptr) {
+                    if (textListener) {
                         textListener->SendKeyboardInfo(*info);
                     }
                     delete info;
@@ -169,7 +169,7 @@ using namespace MessageID;
                     KeyboardInfo *info = new KeyboardInfo();
                     info->SetFunctionKey(ret);
 		    IMSA_HILOGI("InputMethodController::WorkThread SendKeyboardInfo");
-                    if (textListener != nullptr) {
+                    if (textListener) {
                         textListener->SendKeyboardInfo(*info);
                     }
                     delete info;
@@ -179,7 +179,7 @@ using namespace MessageID;
                     MessageParcel *data = msg->msgContent_;
                     int32_t ret = data->ReadInt32();
 		    IMSA_HILOGI("InputMethodController::WorkThread MoveCursor");
-                    if (textListener != nullptr) {
+                    if (textListener) {
                         Direction direction = static_cast<Direction>(ret);
                         textListener->MoveCursor(direction);
                     }
@@ -217,7 +217,7 @@ using namespace MessageID;
     void InputMethodController::HideCurrentInput()
     {
         IMSA_HILOGI("InputMethodController::HideCurrentInput");
-        if (mImms == nullptr) {
+        if (!mImms) {
             return;
         }
         MessageParcel data;
@@ -238,7 +238,7 @@ using namespace MessageID;
                                              sptr<InputDataChannelStub> &channel, InputAttribute &attribute)
     {
         IMSA_HILOGI("InputMethodController::PrepareInput");
-        if (mImms == nullptr) {
+        if (!mImms) {
             return;
         }
         MessageParcel data;
@@ -255,7 +255,7 @@ using namespace MessageID;
     void InputMethodController::DisplayOptionalInputMethod()
     {
         IMSA_HILOGI("InputMethodController::DisplayOptionalInputMethod");
-        if (mImms == nullptr) {
+        if (!mImms) {
             return;
         }
         MessageParcel data;
@@ -269,7 +269,7 @@ using namespace MessageID;
     {
         IMSA_HILOGI("InputMethodController::listInputMethod");
         std::vector<InputMethodProperty*> properties;
-        if (mImms == nullptr) {
+        if (!mImms) {
             return properties;
         }
         mImms->listInputMethod(&properties);
@@ -279,7 +279,7 @@ using namespace MessageID;
     void InputMethodController::StartInput(sptr<InputClientStub> &client)
     {
         IMSA_HILOGI("InputMethodController::StartInput");
-        if (mImms == nullptr) {
+        if (!mImms) {
             return;
         }
         MessageParcel data;
@@ -293,7 +293,7 @@ using namespace MessageID;
     void InputMethodController::ReleaseInput(sptr<InputClientStub> &client)
     {
         IMSA_HILOGI("InputMethodController::ReleaseInput");
-        if (mImms == nullptr) {
+        if (!mImms) {
             return;
         }
         MessageParcel data;
@@ -307,7 +307,7 @@ using namespace MessageID;
     void InputMethodController::StopInput(sptr<InputClientStub> &client)
     {
         IMSA_HILOGI("InputMethodController::StopInput");
-        if (mImms == nullptr) {
+        if (!mImms) {
             return;
         }
         MessageParcel data;
@@ -334,7 +334,7 @@ using namespace MessageID;
 
     void InputMethodController::OnCursorUpdate(CursorInfo cursorInfo)
     {
-        if (mAgent == nullptr) {
+        if (!mAgent) {
             IMSA_HILOGI("InputMethodController::OnCursorUpdate mAgent is nullptr");
             return;
         }
@@ -358,7 +358,7 @@ using namespace MessageID;
         mSelectOldEnd = mSelectNewEnd;
         mSelectNewBegin = start;
         mSelectNewEnd = end;
-        if (mAgent == nullptr) {
+        if (!mAgent) {
             IMSA_HILOGI("InputMethodController::OnSelectionChange mAgent is nullptr");
             return;
         }
@@ -395,7 +395,7 @@ using namespace MessageID;
     bool InputMethodController::dispatchKeyEvent(std::shared_ptr<MMI::KeyEvent> keyEvent)
     {
         IMSA_HILOGI("InputMethodController::dispatchKeyEvent");
-        if (mAgent == nullptr) {
+        if (!mAgent) {
             IMSA_HILOGI("InputMethodController::dispatchKeyEvent mAgent is nullptr");
             return false;
         }
diff --git a/frameworks/inputmethod_controller/src/input_method_system_ability_proxy.cpp b/frameworks/inputmethod_controller/src/input_method_system_ability_proxy.cpp
index b61194b..540861f 100644
--- a/frameworks/inputmethod_controller/src/input_method_system_ability_proxy.cpp
+++ b/frameworks/inputmethod_controller/src/input_method_system_ability_proxy.cpp
@@ -120,7 +120,7 @@ namespace MiscServices {
         IMSA_HILOGI("InputMethodSystemAbilityProxy::SetCoreAndAgent");
 
         auto remote = Remote();
-        if (remote == nullptr) {
+        if (!remote) {
             return;
         }
         MessageParcel reply;
@@ -307,7 +307,7 @@ namespace MiscServices {
 
     int32_t InputMethodSystemAbilityProxy::getCurrentKeyboardType(KeyboardType *retType)
     {
-        if (retType == nullptr) {
+        if (!retType) {
             return ERROR_NULL_POINTER;
         }
 
@@ -329,7 +329,7 @@ namespace MiscServices {
         }
 
         KeyboardType *keyType = reply.ReadParcelable<KeyboardType>();
-        if (keyType == nullptr) {
+        if (!keyType) {
             return ERROR_NULL_POINTER;
         }
         *retType = *keyType;
@@ -340,7 +340,7 @@ namespace MiscServices {
 
     int32_t InputMethodSystemAbilityProxy::listInputMethodEnabled(std::vector<InputMethodProperty*> *properties)
     {
-        if (properties == nullptr) {
+        if (!properties) {
             return ERROR_NULL_POINTER;
         }
 
@@ -373,7 +373,7 @@ namespace MiscServices {
 
     int32_t InputMethodSystemAbilityProxy::listInputMethod(std::vector<InputMethodProperty*> *properties)
     {
-        if (properties == nullptr) {
+        if (!properties) {
             return ERROR_NULL_POINTER;
         }
 
@@ -408,7 +408,7 @@ namespace MiscServices {
     int32_t InputMethodSystemAbilityProxy::listKeyboardType(const std::u16string& imeId,
         std::vector<KeyboardType*> *types)
     {
-        if (types == nullptr) {
+        if (!types) {
             return ERROR_NULL_POINTER;
         }
 
diff --git a/interfaces/kits/js/napi/inputmethod/include/js_input_method_controller.h b/interfaces/kits/js/napi/inputmethod/include/js_input_method_controller.h
index e2229f6..3e27e23 100644
--- a/interfaces/kits/js/napi/inputmethod/include/js_input_method_controller.h
+++ b/interfaces/kits/js/napi/inputmethod/include/js_input_method_controller.h
@@ -13,8 +13,8 @@
  * limitations under the License.
  */
 
-#ifndef OHOS_MISCSERVICES_JS_INPUT_METHOD_CONTROLLER_H
-#define OHOS_MISCSERVICES_JS_INPUT_METHOD_CONTROLLER_H
+#ifndef INTERFACE_KITS_JS_NAPI_INPUTMETHOD_INCLUDE_JS_INPUT_METHOD_CONTROLLER_H
+#define INTERFACE_KITS_JS_NAPI_INPUTMETHOD_INCLUDE_JS_INPUT_METHOD_CONTROLLER_H
 #include "native_engine/native_engine.h"
 #include "native_engine/native_value.h"
 #include "global.h"
diff --git a/interfaces/kits/js/napi/inputmethod/include/js_input_method_registry.h b/interfaces/kits/js/napi/inputmethod/include/js_input_method_registry.h
index 43fdc2b..e4aa6f8 100644
--- a/interfaces/kits/js/napi/inputmethod/include/js_input_method_registry.h
+++ b/interfaces/kits/js/napi/inputmethod/include/js_input_method_registry.h
@@ -13,8 +13,8 @@
  * limitations under the License.
  */
 
-#ifndef OHOS_MISCSERVICES_JS_INPUT_METHOD_REGISTRY_H
-#define OHOS_MISCSERVICES_JS_INPUT_METHOD_REGISTRY_H
+#ifndef INTERFACE_KITS_JS_NAPI_INPUTMETHOD_INCLUDE_JS_INPUT_METHOD_REGISTRY_H
+#define INTERFACE_KITS_JS_NAPI_INPUTMETHOD_INCLUDE_JS_INPUT_METHOD_REGISTRY_H
 
 #include "native_engine/native_engine.h"
 #include "native_engine/native_value.h"
diff --git a/interfaces/kits/js/napi/inputmethod/include/js_input_method_setting.h b/interfaces/kits/js/napi/inputmethod/include/js_input_method_setting.h
index 14a3ac0..700f2e1 100644
--- a/interfaces/kits/js/napi/inputmethod/include/js_input_method_setting.h
+++ b/interfaces/kits/js/napi/inputmethod/include/js_input_method_setting.h
@@ -13,8 +13,8 @@
  * limitations under the License.
  */
 
-#ifndef OHOS_MISCSERVICES_JS_INPUT_METHOD_SETTING_H
-#define OHOS_MISCSERVICES_JS_INPUT_METHOD_SETTING_H
+#ifndef INTERFACE_KITS_JS_NAPI_INPUTMETHOD_INCLUDE_JS_INPUT_METHOD_SETTING_H
+#define INTERFACE_KITS_JS_NAPI_INPUTMETHOD_INCLUDE_JS_INPUT_METHOD_SETTING_H
 #include "native_engine/native_engine.h"
 #include "native_engine/native_value.h"
 #include "global.h"
diff --git a/interfaces/kits/js/napi/inputmethod/include/js_input_method_utils.h b/interfaces/kits/js/napi/inputmethod/include/js_input_method_utils.h
index 76f3b67..071ab03 100644
--- a/interfaces/kits/js/napi/inputmethod/include/js_input_method_utils.h
+++ b/interfaces/kits/js/napi/inputmethod/include/js_input_method_utils.h
@@ -13,8 +13,8 @@
  * limitations under the License.
  */
 
-#ifndef OHOS_MISCSERVICES_JS_INPUT_METHOD_UTILS_H
-#define OHOS_MISCSERVICES_JS_INPUT_METHOD_UTILS_H
+#ifndef INTERFACE_KITS_JS_NAPI_INPUTMETHOD_INCLUDE_JS_INPUT_METHOD_UTILS_H
+#define INTERFACE_KITS_JS_NAPI_INPUTMETHOD_INCLUDE_JS_INPUT_METHOD_UTILS_H
 #include "native_engine/native_engine.h"
 #include "native_engine/native_value.h"
 #include "global.h"
diff --git a/interfaces/kits/js/napi/inputmethod/src/js_input_method_registry.cpp b/interfaces/kits/js/napi/inputmethod/src/js_input_method_registry.cpp
index e6c5d4a..a0219b1 100644
--- a/interfaces/kits/js/napi/inputmethod/src/js_input_method_registry.cpp
+++ b/interfaces/kits/js/napi/inputmethod/src/js_input_method_registry.cpp
@@ -86,13 +86,13 @@ namespace MiscServices {
     {
         IMSA_HILOGI("JsInputMethodRegistryInit() is called!");
 
-        if (engine == nullptr || exportObj == nullptr) {
+        if (!engine || !exportObj) {
             IMSA_HILOGI("engine or exportObj null");
             return nullptr;
         }
 
         NativeObject* object = ConvertNativeValueTo<NativeObject>(exportObj);
-        if (object == nullptr) {
+        if (!object) {
             IMSA_HILOGI("object null");
             return nullptr;
         }
diff --git a/interfaces/kits/js/napi/inputmethod/src/js_input_method_setting.cpp b/interfaces/kits/js/napi/inputmethod/src/js_input_method_setting.cpp
index 71c41eb..4f11f93 100644
--- a/interfaces/kits/js/napi/inputmethod/src/js_input_method_setting.cpp
+++ b/interfaces/kits/js/napi/inputmethod/src/js_input_method_setting.cpp
@@ -64,7 +64,7 @@ namespace MiscServices {
         }
 
         std::vector<InputMethodProperty*> properties = InputMethodController::GetInstance()->ListInputMethod();
-        if (properties.size() == 0) {
+        if (!properties.size()) {
             IMSA_HILOGI("JsInputMethodSetting::ListInputMethod has no ime");
             return engine.CreateUndefined();
         }
diff --git a/interfaces/kits/js/napi/inputmethod/src/js_input_method_utils.cpp b/interfaces/kits/js/napi/inputmethod/src/js_input_method_utils.cpp
index 5e641f4..c8ad6bd 100644
--- a/interfaces/kits/js/napi/inputmethod/src/js_input_method_utils.cpp
+++ b/interfaces/kits/js/napi/inputmethod/src/js_input_method_utils.cpp
@@ -28,7 +28,7 @@ namespace OHOS {
             IMSA_HILOGI("JsInputMethodUtils::CreateInputMethodSetting is called");
             NativeValue *objValue = engine.CreateObject();
             NativeObject *object = ConvertNativeValueTo<NativeObject>(objValue);
-            if (object == nullptr) {
+            if (!object) {
                 IMSA_HILOGI("JsInputMethodUtils::CreateInputMethodSetting Failed to get object");
                 return nullptr;
             }
@@ -46,7 +46,7 @@ namespace OHOS {
             IMSA_HILOGI("JsInputMethodUtils::CreateInputMethodController is called");
             NativeValue *objValue = engine.CreateObject();
             NativeObject *object = ConvertNativeValueTo<NativeObject>(objValue);
-            if (object == nullptr) {
+            if (!object) {
                 IMSA_HILOGI("JsInputMethodUtils::CreateInputMethodController Failed to get object");
                 return nullptr;
             }
diff --git a/interfaces/kits/js/napi/inputmethodengine/include/js_editor_attribute.h b/interfaces/kits/js/napi/inputmethodengine/include/js_editor_attribute.h
index 123aa40..9cc73a0 100644
--- a/interfaces/kits/js/napi/inputmethodengine/include/js_editor_attribute.h
+++ b/interfaces/kits/js/napi/inputmethodengine/include/js_editor_attribute.h
@@ -13,8 +13,8 @@
  * limitations under the License.
  */
 
-#ifndef OHOS_MISCSERVICES_JS_EDITOR_ATTRIBUTE_H
-#define OHOS_MISCSERVICES_JS_EDITOR_ATTRIBUTE_H
+#ifndef INTERFACE_KITS_JS_NAPI_INPUTMETHODENGINE_INCLUDE_JS_EDITOR_ATTRIBUTE_H
+#define INTERFACE_KITS_JS_NAPI_INPUTMETHODENGINE_INCLUDE_JS_EDITOR_ATTRIBUTE_H
 #include "native_engine/native_engine.h"
 #include "native_engine/native_value.h"
 #include "js_runtime_utils.h"
diff --git a/interfaces/kits/js/napi/inputmethodengine/include/js_input_method_engine.h b/interfaces/kits/js/napi/inputmethodengine/include/js_input_method_engine.h
index 7aa29fc..716c809 100644
--- a/interfaces/kits/js/napi/inputmethodengine/include/js_input_method_engine.h
+++ b/interfaces/kits/js/napi/inputmethodengine/include/js_input_method_engine.h
@@ -13,8 +13,8 @@
  * limitations under the License.
  */
 
-#ifndef OHOS_MISCSERVICES_JS_INPUT_METHOD_ENGINE_H
-#define OHOS_MISCSERVICES_JS_INPUT_METHOD_ENGINE_H
+#ifndef INTERFACE_KITS_JS_NAPI_INPUTMETHODENGINE_INCLUDE_JS_INPUT_METHOD_ENGINE_H
+#define INTERFACE_KITS_JS_NAPI_INPUTMETHODENGINE_INCLUDE_JS_INPUT_METHOD_ENGINE_H
 
 #include "js_runtime_utils.h"
 #include "native_engine/native_engine.h"
diff --git a/interfaces/kits/js/napi/inputmethodengine/include/js_input_method_engine_listener.h b/interfaces/kits/js/napi/inputmethodengine/include/js_input_method_engine_listener.h
index c4bdc37..d942b4c 100644
--- a/interfaces/kits/js/napi/inputmethodengine/include/js_input_method_engine_listener.h
+++ b/interfaces/kits/js/napi/inputmethodengine/include/js_input_method_engine_listener.h
@@ -12,8 +12,8 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-#ifndef FM_IMMS_PROJECT_JS_INPUT_METHOD_ENGINE_LISTENER_H
-#define FM_IMMS_PROJECT_JS_INPUT_METHOD_ENGINE_LISTENER_H
+#ifndef INTERFACE_KITS_JS_NAPI_INPUTMETHODENGINE_INCLUDE_JS_INPUT_METHOD_ENGINE_LISTENER_H
+#define INTERFACE_KITS_JS_NAPI_INPUTMETHODENGINE_INCLUDE_JS_INPUT_METHOD_ENGINE_LISTENER_H
 
 #include <map>
 #include <mutex>
diff --git a/interfaces/kits/js/napi/inputmethodengine/include/js_input_method_engine_registry.h b/interfaces/kits/js/napi/inputmethodengine/include/js_input_method_engine_registry.h
index 5fa1cad..bf393bc 100644
--- a/interfaces/kits/js/napi/inputmethodengine/include/js_input_method_engine_registry.h
+++ b/interfaces/kits/js/napi/inputmethodengine/include/js_input_method_engine_registry.h
@@ -13,8 +13,8 @@
  * limitations under the License.
  */
 
-#ifndef OHOS_MISCSERVICES_JS_INPUT_METHOD_ENGINE_REGISTRY_H
-#define OHOS_MISCSERVICES_JS_INPUT_METHOD_ENGINE_REGISTRY_H
+#ifndef INTERFACE_KITS_JS_NAPI_INPUTMETHODENGINE_INCLUDE_JS_INPUT_METHOD_ENGINE_REGISTRY_H
+#define INTERFACE_KITS_JS_NAPI_INPUTMETHODENGINE_INCLUDE_JS_INPUT_METHOD_ENGINE_REGISTRY_H
 
 #include "native_engine/native_engine.h"
 #include "native_engine/native_value.h"
diff --git a/interfaces/kits/js/napi/inputmethodengine/include/js_input_method_engine_utils.h b/interfaces/kits/js/napi/inputmethodengine/include/js_input_method_engine_utils.h
index bfb7c0e..4cce377 100644
--- a/interfaces/kits/js/napi/inputmethodengine/include/js_input_method_engine_utils.h
+++ b/interfaces/kits/js/napi/inputmethodengine/include/js_input_method_engine_utils.h
@@ -13,8 +13,8 @@
  * limitations under the License.
  */
 
-#ifndef OHOS_MISCSERVICES_JS_INPUT_METHOD_ENGINE_UTILS_H
-#define OHOS_MISCSERVICES_JS_INPUT_METHOD_ENGINE_UTILS_H
+#ifndef INTERFACE_KITS_JS_NAPI_INPUTMETHODENGINE_INCLUDE_JS_INPUT_METHOD_UTILS_H
+#define INTERFACE_KITS_JS_NAPI_INPUTMETHODENGINE_INCLUDE_JS_INPUT_METHOD_UTILS_H
 
 #include "js_runtime_utils.h"
 #include "native_engine/native_engine.h"
diff --git a/interfaces/kits/js/napi/inputmethodengine/include/js_keyboard_controller.h b/interfaces/kits/js/napi/inputmethodengine/include/js_keyboard_controller.h
index 7ad9dc8..4a59cca 100644
--- a/interfaces/kits/js/napi/inputmethodengine/include/js_keyboard_controller.h
+++ b/interfaces/kits/js/napi/inputmethodengine/include/js_keyboard_controller.h
@@ -13,8 +13,8 @@
  * limitations under the License.
  */
 
-#ifndef OHOS_MISCSERVICES_JS_KEYBOARD_CONTROLLER_H
-#define OHOS_MISCSERVICES_JS_KEYBOARD_CONTROLLER_H
+#ifndef INTERFACE_KITS_JS_NAPI_INPUTMETHODENGINE_INCLUDE_JS_KEYBOARD_CONTROLLER_H
+#define INTERFACE_KITS_JS_NAPI_INPUTMETHODENGINE_INCLUDE_JS_KEYBOARD_CONTROLLER_H
 #include "native_engine/native_engine.h"
 #include "native_engine/native_value.h"
 #include "js_runtime_utils.h"
diff --git a/interfaces/kits/js/napi/inputmethodengine/include/js_keyboard_delegate.h b/interfaces/kits/js/napi/inputmethodengine/include/js_keyboard_delegate.h
index 3305b06..5605ad3 100644
--- a/interfaces/kits/js/napi/inputmethodengine/include/js_keyboard_delegate.h
+++ b/interfaces/kits/js/napi/inputmethodengine/include/js_keyboard_delegate.h
@@ -13,8 +13,8 @@
  * limitations under the License.
  */
 
-#ifndef OHOS_MISCSERVICES_JS_KEYBOARD_DELEGATE_H
-#define OHOS_MISCSERVICES_JS_KEYBOARD_DELEGATE_H
+#ifndef INTERFACE_KITS_JS_NAPI_INPUTMETHODENGINE_INCLUDE_JS_KEYBOARD_DELEGATE_H
+#define INTERFACE_KITS_JS_NAPI_INPUTMETHODENGINE_INCLUDE_JS_KEYBOARD_DELEGATE_H
 
 #include "js_runtime_utils.h"
 #include "native_engine/native_engine.h"
diff --git a/interfaces/kits/js/napi/inputmethodengine/include/js_keyboard_delegate_listener.h b/interfaces/kits/js/napi/inputmethodengine/include/js_keyboard_delegate_listener.h
index dc07ceb..38e4a62 100644
--- a/interfaces/kits/js/napi/inputmethodengine/include/js_keyboard_delegate_listener.h
+++ b/interfaces/kits/js/napi/inputmethodengine/include/js_keyboard_delegate_listener.h
@@ -12,8 +12,8 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-#ifndef FM_IMMS_PROJECT_JS_KEYBOARD_DELEGATE_LISTENER_H
-#define FM_IMMS_PROJECT_JS_KEYBOARD_DELEGATE_LISTENER_H
+#ifndef INTERFACE_KITS_JS_NAPI_INPUTMETHODENGINE_INCLUDE_JS_KEYBOARD_DELEGATE_LISTENER_H
+#define INTERFACE_KITS_JS_NAPI_INPUTMETHODENGINE_INCLUDE_JS_KEYBOARD_DELEGATE_LISTENER_H
 
 #include <map>
 #include <mutex>
diff --git a/interfaces/kits/js/napi/inputmethodengine/include/js_text_input_client.h b/interfaces/kits/js/napi/inputmethodengine/include/js_text_input_client.h
index d52fa78..9caac29 100644
--- a/interfaces/kits/js/napi/inputmethodengine/include/js_text_input_client.h
+++ b/interfaces/kits/js/napi/inputmethodengine/include/js_text_input_client.h
@@ -13,8 +13,8 @@
  * limitations under the License.
  */
 
-#ifndef OHOS_MISCSERVICES_JS_TEXT_INPUT_CLIENT_H
-#define OHOS_MISCSERVICES_JS_TEXT_INPUT_CLIENT_H
+#ifndef INTERFACE_KITS_JS_NAPI_INPUTMETHODENGINE_INCLUDE_JS_TEXT_INPUT_CLIENT_H
+#define INTERFACE_KITS_JS_NAPI_INPUTMETHODENGINE_INCLUDE_JS_TEXT_INPUT_CLIENT_H
 #include "native_engine/native_engine.h"
 #include "native_engine/native_value.h"
 #include "js_runtime_utils.h"
diff --git a/interfaces/kits/js/napi/inputmethodengine/src/js_input_method_engine.cpp b/interfaces/kits/js/napi/inputmethodengine/src/js_input_method_engine.cpp
index 759e30a..236073e 100644
--- a/interfaces/kits/js/napi/inputmethodengine/src/js_input_method_engine.cpp
+++ b/interfaces/kits/js/napi/inputmethodengine/src/js_input_method_engine.cpp
@@ -52,13 +52,13 @@ namespace MiscServices {
     NativeValue* JsInputMethodEngine::RegisterCallback(NativeEngine* engine, NativeCallbackInfo* info)
     {
         JsInputMethodEngine* me = CheckParamsAndGetThis<JsInputMethodEngine>(engine, info);
-        return (me != nullptr) ? me->OnRegisterCallback(*engine, *info) : nullptr;
+        return (me) ? me->OnRegisterCallback(*engine, *info) : nullptr;
     }
 
     NativeValue* JsInputMethodEngine::UnRegisterCallback(NativeEngine* engine, NativeCallbackInfo* info)
     {
         JsInputMethodEngine* me = CheckParamsAndGetThis<JsInputMethodEngine>(engine, info);
-        return (me != nullptr) ? me->OnUnRegisterCallback(*engine, *info) : nullptr;
+        return (me) ? me->OnUnRegisterCallback(*engine, *info) : nullptr;
     }
 
     NativeValue* JsInputMethodEngine::OnRegisterCallback(NativeEngine& engine, NativeCallbackInfo& info)
@@ -83,7 +83,7 @@ namespace MiscServices {
     NativeValue* JsInputMethodEngine::OnUnRegisterCallback(NativeEngine& engine, NativeCallbackInfo& info)
     {
         IMSA_HILOGI("JsInputMethodEngine::OnUnRegisterCallback is called!");
-        if (info.argc == 0) {
+        if (!info.argc) {
             IMSA_HILOGI("JsInputMethodEngine::OnUnRegisterCallback Params not match");
             return engine.CreateUndefined();
         }
diff --git a/interfaces/kits/js/napi/inputmethodengine/src/js_input_method_engine_listener.cpp b/interfaces/kits/js/napi/inputmethodengine/src/js_input_method_engine_listener.cpp
index 09887c0..b3f66fd 100644
--- a/interfaces/kits/js/napi/inputmethodengine/src/js_input_method_engine_listener.cpp
+++ b/interfaces/kits/js/napi/inputmethodengine/src/js_input_method_engine_listener.cpp
@@ -106,7 +106,7 @@ namespace MiscServices {
     void JsInputMethodEngineListener::CallJsMethod(std::string methodName, NativeValue* const* argv, size_t argc)
     {
         IMSA_HILOGI("JsInputMethodEngineListener::CallJsMethod");
-        if (engine_ == nullptr) {
+        if (!engine_) {
             IMSA_HILOGI("engine_ nullptr");
             return;
         }
@@ -125,7 +125,7 @@ namespace MiscServices {
                                                              NativeValue* const* argv, size_t argc)
     {
         IMSA_HILOGI("JsInputMethodEngineListener::CallJsMethodReturnBool");
-        if (engine_ == nullptr) {
+        if (!engine_) {
             IMSA_HILOGI("engine_ nullptr");
             return false;
         }
@@ -154,7 +154,7 @@ namespace MiscServices {
         auto task = [this, isShow] () {
             NativeValue* nativeValue = engine_->CreateObject();
             NativeObject* object = ConvertNativeValueTo < NativeObject >(nativeValue);
-            if (object == nullptr) {
+            if (!object) {
                 IMSA_HILOGI("Failed to convert rect to jsObject");
                 return;
             }
diff --git a/interfaces/kits/js/napi/inputmethodengine/src/js_input_method_engine_registry.cpp b/interfaces/kits/js/napi/inputmethodengine/src/js_input_method_engine_registry.cpp
index 207e3a9..d671378 100644
--- a/interfaces/kits/js/napi/inputmethodengine/src/js_input_method_engine_registry.cpp
+++ b/interfaces/kits/js/napi/inputmethodengine/src/js_input_method_engine_registry.cpp
@@ -48,19 +48,19 @@ namespace MiscServices {
         static NativeValue* GetInputMethodEngine(NativeEngine* engine, NativeCallbackInfo* info)
         {
             JsInputMethodEngineRegistry* me = CheckParamsAndGetThis<JsInputMethodEngineRegistry>(engine, info);
-            return (me != nullptr) ? me->OnGetInputMethodEngine(*engine, *info) : nullptr;
+            return (me) ? me->OnGetInputMethodEngine(*engine, *info) : nullptr;
         }
 
         static NativeValue* GetKeyboardDelegate(NativeEngine* engine, NativeCallbackInfo* info)
         {
             JsInputMethodEngineRegistry* me = CheckParamsAndGetThis<JsInputMethodEngineRegistry>(engine, info);
-            return (me != nullptr) ? me->OnGetKeyboardDelegate(*engine, *info) : nullptr;
+            return (me) ? me->OnGetKeyboardDelegate(*engine, *info) : nullptr;
         }
 
         static NativeValue* MoveCursor(NativeEngine* engine, NativeCallbackInfo* info)
         {
             JsInputMethodEngineRegistry* me = CheckParamsAndGetThis<JsInputMethodEngineRegistry>(engine, info);
-            return (me != nullptr) ? me->OnMoveCursor(*engine, *info) : nullptr;
+            return (me) ? me->OnMoveCursor(*engine, *info) : nullptr;
         }
     private:
         NativeValue* OnGetInputMethodEngine(NativeEngine& engine, NativeCallbackInfo& info)
@@ -114,13 +114,13 @@ namespace MiscServices {
     {
         IMSA_HILOGI("JsInputMethodEngineRegistryInit() is called!");
 
-        if (engine == nullptr || exportObj == nullptr) {
+        if (!engine || !exportObj) {
             IMSA_HILOGI("engine or exportObj null");
             return nullptr;
         }
 
         NativeObject* object = ConvertNativeValueTo<NativeObject>(exportObj);
-        if (object == nullptr) {
+        if (!object) {
             IMSA_HILOGI("object null");
             return nullptr;
         }
diff --git a/interfaces/kits/js/napi/inputmethodengine/src/js_input_method_engine_utils.cpp b/interfaces/kits/js/napi/inputmethodengine/src/js_input_method_engine_utils.cpp
index a97b2ad..92d5c54 100644
--- a/interfaces/kits/js/napi/inputmethodengine/src/js_input_method_engine_utils.cpp
+++ b/interfaces/kits/js/napi/inputmethodengine/src/js_input_method_engine_utils.cpp
@@ -32,7 +32,7 @@ namespace OHOS {
             IMSA_HILOGI("JsInputMethodEngineUtils::CreateInputMethodEngine is called");
             NativeValue *objValue = engine.CreateObject();
             NativeObject *object = ConvertNativeValueTo<NativeObject>(objValue);
-            if (object == nullptr) {
+            if (!object) {
                 IMSA_HILOGI("JsInputMethodEngineUtils::CreateInputMethodEngine Failed to get object");
                 return nullptr;
             }
@@ -50,7 +50,7 @@ namespace OHOS {
             IMSA_HILOGI("JsInputMethodEngineUtils::CreateKeyboardController is called");
             NativeValue *objValue = engine.CreateObject();
             NativeObject *object = ConvertNativeValueTo<NativeObject>(objValue);
-            if (object == nullptr) {
+            if (!object) {
                 IMSA_HILOGI("CreateKeyboardController Failed to get object");
                 return nullptr;
             }
@@ -68,7 +68,7 @@ namespace OHOS {
             IMSA_HILOGI("JsInputMethodEngineUtils::CreateTextInputClient is called");
             NativeValue *objValue = engine.CreateObject();
             NativeObject *object = ConvertNativeValueTo<NativeObject>(objValue);
-            if (object == nullptr) {
+            if (!object) {
                 IMSA_HILOGI("CreateTextInputClient Failed to get object");
                 return nullptr;
             }
@@ -91,7 +91,7 @@ namespace OHOS {
             IMSA_HILOGI("JsInputMethodEngineUtils::CreateKeyboardDelegate is called");
             NativeValue *objValue = engine.CreateObject();
             NativeObject *object = ConvertNativeValueTo<NativeObject>(objValue);
-            if (object == nullptr) {
+            if (!object) {
                 IMSA_HILOGI("CreateKeyboardDelegate Failed to get object");
                 return nullptr;
             }
@@ -109,7 +109,7 @@ namespace OHOS {
             IMSA_HILOGI("JsInputMethodEngineUtils::CreateEditorAttribute is called");
             NativeValue *objValue = engine.CreateObject();
             NativeObject *object = ConvertNativeValueTo<NativeObject>(objValue);
-            if (object == nullptr) {
+            if (!object) {
                 IMSA_HILOGI("CreateEditorAttribute Failed to get object");
                 return nullptr;
             }
diff --git a/interfaces/kits/js/napi/inputmethodengine/src/js_keyboard_controller.cpp b/interfaces/kits/js/napi/inputmethodengine/src/js_keyboard_controller.cpp
index 4f2c7e9..70bdca9 100644
--- a/interfaces/kits/js/napi/inputmethodengine/src/js_keyboard_controller.cpp
+++ b/interfaces/kits/js/napi/inputmethodengine/src/js_keyboard_controller.cpp
@@ -33,7 +33,7 @@ namespace MiscServices {
     NativeValue* JsKeyboardController::HideKeyboardSelf(NativeEngine* engine, NativeCallbackInfo* info)
     {
         JsKeyboardController* me = CheckParamsAndGetThis<JsKeyboardController>(engine, info);
-        return (me != nullptr) ? me->OnHideKeyboardSelf(*engine, *info) : nullptr;
+        return (me) ? me->OnHideKeyboardSelf(*engine, *info) : nullptr;
     }
 
     NativeValue* JsKeyboardController::OnHideKeyboardSelf(NativeEngine& engine, NativeCallbackInfo& info)
diff --git a/interfaces/kits/js/napi/inputmethodengine/src/js_keyboard_delegate.cpp b/interfaces/kits/js/napi/inputmethodengine/src/js_keyboard_delegate.cpp
index 74f4640..666b40f 100644
--- a/interfaces/kits/js/napi/inputmethodengine/src/js_keyboard_delegate.cpp
+++ b/interfaces/kits/js/napi/inputmethodengine/src/js_keyboard_delegate.cpp
@@ -52,13 +52,13 @@ namespace MiscServices {
     NativeValue* JsKeyboardDelegate::RegisterCallback(NativeEngine* engine, NativeCallbackInfo* info)
     {
         JsKeyboardDelegate* me = CheckParamsAndGetThis<JsKeyboardDelegate>(engine, info);
-        return (me != nullptr) ? me->OnRegisterCallback(*engine, *info) : nullptr;
+        return (me) ? me->OnRegisterCallback(*engine, *info) : nullptr;
     }
 
     NativeValue* JsKeyboardDelegate::UnRegisterCallback(NativeEngine* engine, NativeCallbackInfo* info)
     {
         JsKeyboardDelegate* me = CheckParamsAndGetThis<JsKeyboardDelegate>(engine, info);
-        return (me != nullptr) ? me->OnUnRegisterCallback(*engine, *info) : nullptr;
+        return (me) ? me->OnUnRegisterCallback(*engine, *info) : nullptr;
     }
 
     NativeValue* JsKeyboardDelegate::OnRegisterCallback(NativeEngine& engine, NativeCallbackInfo& info)
@@ -83,7 +83,7 @@ namespace MiscServices {
     NativeValue* JsKeyboardDelegate::OnUnRegisterCallback(NativeEngine& engine, NativeCallbackInfo& info)
     {
         IMSA_HILOGI("JsKeyboardDelegate::OnUnRegisterCallback is called!");
-        if (info.argc == 0) {
+        if (!info.argc) {
             IMSA_HILOGI("JsKeyboardDelegate::OnUnRegisterCallback Params not match");
             return engine.CreateUndefined();
         }
diff --git a/interfaces/kits/js/napi/inputmethodengine/src/js_keyboard_delegate_listener.cpp b/interfaces/kits/js/napi/inputmethodengine/src/js_keyboard_delegate_listener.cpp
index 0d6985f..decd009 100644
--- a/interfaces/kits/js/napi/inputmethodengine/src/js_keyboard_delegate_listener.cpp
+++ b/interfaces/kits/js/napi/inputmethodengine/src/js_keyboard_delegate_listener.cpp
@@ -104,7 +104,7 @@ namespace MiscServices {
     void JsKeyboardDelegateListener::CallJsMethod(std::string methodName, NativeValue* const* argv, size_t argc)
     {
         IMSA_HILOGI("JsKeyboardDelegateListener::CallJsMethod");
-        if (engine_ == nullptr) {
+        if (!engine_) {
             IMSA_HILOGI("engine_ nullptr");
             return;
         }
@@ -123,7 +123,7 @@ namespace MiscServices {
         NativeValue* const* argv, size_t argc)
     {
         IMSA_HILOGI("JsKeyboardDelegateListener::CallJsMethodReturnBool");
-        if (engine_ == nullptr) {
+        if (!engine_) {
             IMSA_HILOGI("engine_ nullptr");
             return false;
         }
@@ -153,7 +153,7 @@ namespace MiscServices {
         auto task = [this, keyCode, keyStatus, &result] () {
             NativeValue* nativeValue = engine_->CreateObject();
             NativeObject* object = ConvertNativeValueTo<NativeObject>(nativeValue);
-            if (object == nullptr) {
+            if (!object) {
                 IMSA_HILOGI("Failed to convert rect to jsObject");
                 return;
             }
diff --git a/interfaces/kits/js/napi/inputmethodengine/src/js_text_input_client.cpp b/interfaces/kits/js/napi/inputmethodengine/src/js_text_input_client.cpp
index 5bd9bef..0f89bfb 100644
--- a/interfaces/kits/js/napi/inputmethodengine/src/js_text_input_client.cpp
+++ b/interfaces/kits/js/napi/inputmethodengine/src/js_text_input_client.cpp
@@ -36,43 +36,43 @@ namespace MiscServices {
     NativeValue* JsTextInputClient::InsertText(NativeEngine* engine, NativeCallbackInfo* info)
     {
         JsTextInputClient* me = CheckParamsAndGetThis<JsTextInputClient>(engine, info);
-        return (me != nullptr) ? me->OnInsertText(*engine, *info) : nullptr;
+        return (me) ? me->OnInsertText(*engine, *info) : nullptr;
     }
 
     NativeValue* JsTextInputClient::DeleteForward(NativeEngine* engine, NativeCallbackInfo* info)
     {
         JsTextInputClient* me = CheckParamsAndGetThis<JsTextInputClient>(engine, info);
-        return (me != nullptr) ? me->OnDeleteForward(*engine, *info) : nullptr;
+        return (me) ? me->OnDeleteForward(*engine, *info) : nullptr;
     }
 
     NativeValue* JsTextInputClient::DeleteBackward(NativeEngine* engine, NativeCallbackInfo* info)
     {
         JsTextInputClient* me = CheckParamsAndGetThis<JsTextInputClient>(engine, info);
-        return (me != nullptr) ? me->OnDeleteBackward(*engine, *info) : nullptr;
+        return (me) ? me->OnDeleteBackward(*engine, *info) : nullptr;
     }
 
     NativeValue* JsTextInputClient::SendFunctionKey(NativeEngine* engine, NativeCallbackInfo* info)
     {
         JsTextInputClient* me = CheckParamsAndGetThis<JsTextInputClient>(engine, info);
-        return (me != nullptr) ? me->OnSendFunctionKey(*engine, *info) : nullptr;
+        return (me) ? me->OnSendFunctionKey(*engine, *info) : nullptr;
     }
 
     NativeValue* JsTextInputClient::GetForward(NativeEngine* engine, NativeCallbackInfo* info)
     {
         JsTextInputClient* me = CheckParamsAndGetThis<JsTextInputClient>(engine, info);
-        return (me != nullptr) ? me->OnGetForward(*engine, *info) : nullptr;
+        return (me) ? me->OnGetForward(*engine, *info) : nullptr;
     }
 
     NativeValue* JsTextInputClient::GetBackward(NativeEngine* engine, NativeCallbackInfo* info)
     {
         JsTextInputClient* me = CheckParamsAndGetThis<JsTextInputClient>(engine, info);
-        return (me != nullptr) ? me->OnGetBackward(*engine, *info) : nullptr;
+        return (me) ? me->OnGetBackward(*engine, *info) : nullptr;
     }
 
     NativeValue* JsTextInputClient::GetEditorAttribute(NativeEngine* engine, NativeCallbackInfo* info)
     {
         JsTextInputClient* me = CheckParamsAndGetThis<JsTextInputClient>(engine, info);
-        return (me != nullptr) ? me->OnGetEditorAttribute(*engine, *info) : nullptr;
+        return (me) ? me->OnGetEditorAttribute(*engine, *info) : nullptr;
     }
 
     NativeValue* JsTextInputClient::OnInsertText(NativeEngine& engine, NativeCallbackInfo& info)
diff --git a/services/dialog/js/pages/index/index.css b/services/dialog/js/pages/index/index.css
index 31db677..5ec55c0 100644
--- a/services/dialog/js/pages/index/index.css
+++ b/services/dialog/js/pages/index/index.css
@@ -1,3 +1,18 @@
+/*
+ * Copyright (c) 2022 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 .container {
     display: flex;
     flex-direction: column;
diff --git a/services/dialog/js/pages/index/index.hml b/services/dialog/js/pages/index/index.hml
index 797f5c2..69f546f 100644
--- a/services/dialog/js/pages/index/index.hml
+++ b/services/dialog/js/pages/index/index.hml
@@ -1,3 +1,18 @@
+/*
+ * Copyright (c) 2022 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 <div class="container" onswipe="touchMove">
     <text class="title">
         {{ dialogTitle }}
@@ -8,7 +23,7 @@
             <div class="normal">
                 <div class="imeMessage">
                     <text class="imeName">{{ $item.label }}</text>
-                    <text class="imeDecription">{{ $item.discription }}</text>
+                    <text class="imeDecription">{{ $item.description }}</text>
                 </div>
                 <circle class="circle" cx="12fp" cy="12fp" r="12fp" stroke-width="10fp" fill="white" stroke="blue"
                         show="{{ $item.isDefaultIme == 'true' ? true : false }}">
diff --git a/services/dialog/js/pages/index/index.js b/services/dialog/js/pages/index/index.js
index bce8ed6..181ae48 100644
--- a/services/dialog/js/pages/index/index.js
+++ b/services/dialog/js/pages/index/index.js
@@ -1,3 +1,18 @@
+/*
+ * Copyright (c) 2022 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
 import router from '@ohos.router'
 
 export default {
diff --git a/services/include/global.h b/services/include/global.h
index 9b45a63..dc2db6e 100644
--- a/services/include/global.h
+++ b/services/include/global.h
@@ -13,8 +13,8 @@
  * limitations under the License.
  */
 
-#ifndef FM_IMMS_PROJECT_GLOBAL_H
-#define FM_IMMS_PROJECT_GLOBAL_H
+#ifndef SERVICES_INCLUDE_GLOBAL_H
+#define SERVICES_INCLUDE_GLOBAL_H
 
 #include <errno.h>
 #include <time.h>
@@ -31,8 +31,6 @@ namespace MiscServices {
 
 using BRemoteObject = IPCObjectStub;
 
-#define INPUTMETHOD_DEBUG 0
-
 #define LOG_INFO(fmt, args...) \
     LogTimeStamp(); printf("I %s:%d  %s - " fmt, basename(__FILE__), __LINE__, __FUNCTION__, ##args)
 
diff --git a/services/include/i_input_control_channel.h b/services/include/i_input_control_channel.h
index 653ff5b..b82b65e 100644
--- a/services/include/i_input_control_channel.h
+++ b/services/include/i_input_control_channel.h
@@ -13,8 +13,8 @@
  * limitations under the License.
  */
 
-#ifndef FM_IMMS_PROJECT_IINPUTCONTROLCHANNEL_H
-#define FM_IMMS_PROJECT_IINPUTCONTROLCHANNEL_H
+#ifndef SERVICES_INCLUDE_I_INPUT_CONTROL_CHANNEL_H
+#define SERVICES_INCLUDE_I_INPUT_CONTROL_CHANNEL_H
 
 #include "iremote_broker.h"
 #include "input_channel.h"
diff --git a/services/include/i_input_method_system_ability.h b/services/include/i_input_method_system_ability.h
index 9511baf..8319cd3 100644
--- a/services/include/i_input_method_system_ability.h
+++ b/services/include/i_input_method_system_ability.h
@@ -13,8 +13,8 @@
  * limitations under the License.
  */
 
-#ifndef FM_IMMS_PROJECT_IINPUTMETHODSYSTEMABILITY_H
-#define FM_IMMS_PROJECT_IINPUTMETHODSYSTEMABILITY_H
+#ifndef SERVICES_INCLUDE_I_INPUT_METHOD_SYSTEM_ABILITY_H
+#define SERVICES_INCLUDE_I_INPUT_METHOD_SYSTEM_ABILITY_H
 
 #include <vector>
 #include <errors.h>
diff --git a/services/include/i_platform_api.h b/services/include/i_platform_api.h
index b9ab913..b701fc7 100644
--- a/services/include/i_platform_api.h
+++ b/services/include/i_platform_api.h
@@ -13,8 +13,8 @@
  * limitations under the License.
  */
 
-#ifndef FM_IMMS_PROJECT_IPLATFORMAPI_H
-#define FM_IMMS_PROJECT_IPLATFORMAPI_H
+#ifndef SERVICES_INCLUDE_I_PLATFORM_API_H
+#define SERVICES_INCLUDE_I_PLATFORM_API_H
 
 #include <vector>
 #include <string>
diff --git a/services/include/i_platform_callback.h b/services/include/i_platform_callback.h
index 4b79db7..970cecc 100644
--- a/services/include/i_platform_callback.h
+++ b/services/include/i_platform_callback.h
@@ -13,8 +13,8 @@
  * limitations under the License.
  */
 
-#ifndef FM_IMMS_PROJECT_IPLATFORMCALLBACK_H
-#define FM_IMMS_PROJECT_IPLATFORMCALLBACK_H
+#ifndef SERVICES_INCLUDE_I_PLATFORM_CALLBACK_H
+#define SERVICES_INCLUDE_I_PLATFORM_CALLBACK_H
 
 #include <vector>
 #include <string>
diff --git a/services/include/im_common_event_manager.h b/services/include/im_common_event_manager.h
index 14e7741..ec9d425 100644
--- a/services/include/im_common_event_manager.h
+++ b/services/include/im_common_event_manager.h
@@ -13,8 +13,8 @@
  * limitations under the License.
  */
 
-#ifndef FM_IMMS_PROJECT_IMCOMMONEVENTMANAGER_H
-#define FM_IMMS_PROJECT_IMCOMMONEVENTMANAGER_H
+#ifndef SERVICES_INCLUDE_IM_COMMON_EVENT_MANAGER_H
+#define SERVICES_INCLUDE_IM_COMMON_EVENT_MANAGER_H
 
 #include <mutex>
 #include "common_event_subscriber.h"
diff --git a/services/include/input_attribute.h b/services/include/input_attribute.h
index 36f4f29..b6b39b4 100644
--- a/services/include/input_attribute.h
+++ b/services/include/input_attribute.h
@@ -13,8 +13,8 @@
  * limitations under the License.
  */
 
-#ifndef FM_IMMS_PROJECT_INPUTATTRIBUTE_H
-#define FM_IMMS_PROJECT_INPUTATTRIBUTE_H
+#ifndef SERVICES_INCLUDE_INPUT_ATTRIBUTE_H
+#define SERVICES_INCLUDE_INPUT_ATTRIBUTE_H
 #include "parcel.h"
 
 namespace OHOS {
diff --git a/services/include/input_channel.h b/services/include/input_channel.h
index 43f15c5..254ae4a 100644
--- a/services/include/input_channel.h
+++ b/services/include/input_channel.h
@@ -13,8 +13,8 @@
  * limitations under the License.
  */
 
-#ifndef FM_IMMS_PROJECT__INPUTCHANNEL_H
-#define FM_IMMS_PROJECT__INPUTCHANNEL_H
+#ifndef SERVICES_INCLUDE_INPUT_CHANNEL_H
+#define SERVICES_INCLUDE_INPUT_CHANNEL_H
 #include <string>
 #include "parcel.h"
 #include "global.h"
diff --git a/services/include/input_control_channel_proxy.h b/services/include/input_control_channel_proxy.h
index aa85bda..27e7f81 100644
--- a/services/include/input_control_channel_proxy.h
+++ b/services/include/input_control_channel_proxy.h
@@ -13,8 +13,8 @@
  * limitations under the License.
  */
 
-#ifndef FM_IMMS_PROJECT_INPUTCONTROLCHANNELPROXY_H
-#define FM_IMMS_PROJECT_INPUTCONTROLCHANNELPROXY_H
+#ifndef SERVICES_INCLUDE_INPUT_CONTROL_CHANNEL_PROXY_H
+#define SERVICES_INCLUDE_INPUT_CONTROL_CHANNEL_PROXY_H
 
 #include "parcel.h"
 #include "iremote_broker.h"
diff --git a/services/include/input_control_channel_stub.h b/services/include/input_control_channel_stub.h
index dd52ac0..6d5f7fe 100644
--- a/services/include/input_control_channel_stub.h
+++ b/services/include/input_control_channel_stub.h
@@ -13,8 +13,8 @@
  * limitations under the License.
  */
 
-#ifndef FM_IMMS_PROJECT_INPUTCONTROLCHANNELSTUB_H
-#define FM_IMMS_PROJECT_INPUTCONTROLCHANNELSTUB_H
+#ifndef SERVICES_INCLUDE_INPUT_CONTROL_CHANNEL_STUB_H
+#define SERVICES_INCLUDE_INPUT_CONTROL_CHANNEL_STUB_H
 
 #include <mutex>
 #include <condition_variable>
diff --git a/services/include/input_method_ability_connection_stub.h b/services/include/input_method_ability_connection_stub.h
index 295c533..c6f8cfc 100644
--- a/services/include/input_method_ability_connection_stub.h
+++ b/services/include/input_method_ability_connection_stub.h
@@ -12,8 +12,8 @@
  * See the License for the specific language governing permissions and
  * limitations under the License.
  */
-#ifndef SERVICES_INPUTMETHODABILITYCONNECTIONSTUB_H
-#define SERVICES_INPUTMETHODABILITYCONNECTIONSTUB_H
+#ifndef SERVICES_INCLUDE_INPUT_METHOD_ABILITY_CONNECTION_STUB_H
+#define SERVICES_INCLUDE_INPUT_METHOD_ABILITY_CONNECTION_STUB_H
 #include "ability_connect_callback_stub.h"
 #include "want.h"
 #include "element_name.h"
diff --git a/services/include/input_method_property.h b/services/include/input_method_property.h
index da0e5f7..8602692 100644
--- a/services/include/input_method_property.h
+++ b/services/include/input_method_property.h
@@ -13,8 +13,8 @@
  * limitations under the License.
  */
 
-#ifndef FM_IMMS_PROJECT_INPUTMETHODPROPERTY_H
-#define FM_IMMS_PROJECT_INPUTMETHODPROPERTY_H
+#ifndef SERVICES_INCLUDE_INPUT_METHOD_PROPERTY_H
+#define SERVICES_INCLUDE_INPUT_METHOD_PROPERTY_H
 #include <vector>
 #include <string>
 #include "parcel.h"
diff --git a/services/include/input_method_setting.h b/services/include/input_method_setting.h
index 5ede921..060968a 100644
--- a/services/include/input_method_setting.h
+++ b/services/include/input_method_setting.h
@@ -13,8 +13,8 @@
  * limitations under the License.
  */
 
-#ifndef FM_IMMS_PROJECT_INPUTMETHODSETTING_H
-#define FM_IMMS_PROJECT_INPUTMETHODSETTING_H
+#ifndef SERVICES_INCLUDE_INPUT_METHOD_SETTING_H
+#define SERVICES_INCLUDE_INPUT_METHOD_SETTING_H
 #include <map>
 #include <vector>
 #include "string.h"
diff --git a/services/include/input_method_system_ability.h b/services/include/input_method_system_ability.h
index 12940fc..9f434a8 100644
--- a/services/include/input_method_system_ability.h
+++ b/services/include/input_method_system_ability.h
@@ -13,8 +13,8 @@
  * limitations under the License.
  */
 
-#ifndef FM_IMMS_PROJECT_INPUTMETHODSYSTEMABILITY_H
-#define FM_IMMS_PROJECT_INPUTMETHODSYSTEMABILITY_H
+#ifndef SERVICES_INCLUDE_INPUT_METHOD_SYSTEM_ABILITY_H
+#define SERVICES_INCLUDE_INPUT_METHOD_SYSTEM_ABILITY_H
 
 #include <thread>
 #include <map>
diff --git a/services/include/input_method_system_ability_stub.h b/services/include/input_method_system_ability_stub.h
index 7e6e91f..ee18380 100644
--- a/services/include/input_method_system_ability_stub.h
+++ b/services/include/input_method_system_ability_stub.h
@@ -13,8 +13,8 @@
  * limitations under the License.
  */
 
-#ifndef FM_IMMS_PROJECT_INPUTMETHODSYSTEMABILITY_SK_H
-#define FM_IMMS_PROJECT_INPUTMETHODSYSTEMABILITY_SK_H
+#ifndef SERVICES_INCLUDE_INPUT_METHOD_SYSTEM_ABILITY_STUB_H
+#define SERVICES_INCLUDE_INPUT_METHOD_SYSTEM_ABILITY_STUB_H
 #include <errors.h>
 #include "refbase.h"
 #include "i_input_method_system_ability.h"
diff --git a/services/include/keyboard_type.h b/services/include/keyboard_type.h
index 9d14aeb..7344362 100644
--- a/services/include/keyboard_type.h
+++ b/services/include/keyboard_type.h
@@ -13,8 +13,8 @@
  * limitations under the License.
  */
 
-#ifndef FM_IMMS_PROJECT_KEYBOARDTYPE_H
-#define FM_IMMS_PROJECT_KEYBOARDTYPE_H
+#ifndef SERVICES_INCLUDE_KEYBOARD_TYPE_H
+#define SERVICES_INCLUDE_KEYBOARD_TYPE_H
 
 #include <vector>
 #include <string>
diff --git a/services/include/message.h b/services/include/message.h
index 8073b49..47815a1 100644
--- a/services/include/message.h
+++ b/services/include/message.h
@@ -14,8 +14,8 @@
  */
 
 /*! \file MessageHandler.h */
-#ifndef FM_IMMS_PROJECT_MESSAGE_H
-#define FM_IMMS_PROJECT_MESSAGE_H
+#ifndef SERVICES_INCLUDE_MESSAGE_H
+#define SERVICES_INCLUDE_MESSAGE_H
 
 #include "global.h"
 #include "message_parcel.h"
diff --git a/services/include/message_handler.h b/services/include/message_handler.h
index 672374e..8c00a8e 100644
--- a/services/include/message_handler.h
+++ b/services/include/message_handler.h
@@ -14,8 +14,8 @@
  */
 
 /*! \file MessageHandler.h */
-#ifndef FM_IMMS_PROJECT_MESSAGEHANDLER_H
-#define FM_IMMS_PROJECT_MESSAGEHANDLER_H
+#ifndef SERVICES_INCLUDE_MESSAGE_HANDLER_H
+#define SERVICES_INCLUDE_MESSAGE_HANDLER_H
 
 #include <queue>
 #include <mutex>
diff --git a/services/include/peruser_session.h b/services/include/peruser_session.h
index 936373a..10c992e 100644
--- a/services/include/peruser_session.h
+++ b/services/include/peruser_session.h
@@ -13,8 +13,8 @@
  * limitations under the License.
  */
 
-#ifndef FM_IMMS_PROJECT_PERUSERSESSION_H
-#define FM_IMMS_PROJECT_PERUSERSESSION_H
+#ifndef SERVICES_INCLUDE_PERUSER_SESSION_H
+#define SERVICES_INCLUDE_PERUSER_SESSION_H
 
 #include <thread>
 #include <mutex>
diff --git a/services/include/peruser_setting.h b/services/include/peruser_setting.h
index e73b82f..50546ab 100644
--- a/services/include/peruser_setting.h
+++ b/services/include/peruser_setting.h
@@ -13,8 +13,8 @@
  * limitations under the License.
  */
 
-#ifndef FM_IMMS_PROJECT_PERUSERSETTING_H
-#define FM_IMMS_PROJECT_PERUSERSETTING_H
+#ifndef SERVICES_INCLUDE_PERUSER_SETTING_H
+#define SERVICES_INCLUDE_PERUSER_SETTING_H
 
 #include <map>
 #include <string>
diff --git a/services/include/platform.h b/services/include/platform.h
index 227bde4..d069241 100644
--- a/services/include/platform.h
+++ b/services/include/platform.h
@@ -13,8 +13,8 @@
  * limitations under the License.
  */
 
-#ifndef FM_IMMS_PROJECT_PLATFORMAPI_H
-#define FM_IMMS_PROJECT_PLATFORMAPI_H
+#ifndef SERVICES_INCLUDE_PLATFORM_H
+#define SERVICES_INCLUDE_PLATFORM_H
 
 #include <vector>
 #include <string>
diff --git a/services/include/platform_callback_stub.h b/services/include/platform_callback_stub.h
index a0cff16..deee786 100644
--- a/services/include/platform_callback_stub.h
+++ b/services/include/platform_callback_stub.h
@@ -13,8 +13,8 @@
  * limitations under the License.
  */
 
-#ifndef FM_IMMS_PROJECT_PLATFORMCALLBACK_SK_H
-#define FM_IMMS_PROJECT_PLATFORMCALLBACK_SK_H
+#ifndef SERVICES_INCLUDE_PLATFORM_CALLBACK_STUB_H
+#define SERVICES_INCLUDE_PLATFORM_CALLBACK_STUB_H
 
 #include <string>
 #include "iremote_stub.h"
diff --git a/services/include/utils.h b/services/include/utils.h
index 2c43c4b..df65aac 100644
--- a/services/include/utils.h
+++ b/services/include/utils.h
@@ -15,8 +15,8 @@
 
 /*! \file utils.h */
 
-#ifndef FM_IMMS_PROJECT_UTILS_H
-#define FM_IMMS_PROJECT_UTILS_H
+#ifndef SERVICES_INCLUDE_UTILS_H
+#define SERVICES_INCLUDE_UTILS_H
 
 #include <string>
 #include <codecvt>
diff --git a/services/src/im_common_event_manager.cpp b/services/src/im_common_event_manager.cpp
index 31a628c..9585342 100644
--- a/services/src/im_common_event_manager.cpp
+++ b/services/src/im_common_event_manager.cpp
@@ -40,9 +40,9 @@ namespace MiscServices {
 
     sptr<ImCommonEventManager> ImCommonEventManager::GetInstance()
     {
-        if (instance_ == nullptr) {
+        if (!instance_) {
             std::lock_guard<std::mutex> autoLock(instanceLock_);
-            if (instance_ == nullptr) {
+            if (!instance_) {
                 IMSA_HILOGI("ImCommonEventManager::GetInstance instance_ is nullptr");
                 instance_ = new ImCommonEventManager();
             }
@@ -58,7 +58,7 @@ namespace MiscServices {
         EventFwk::CommonEventSubscribeInfo subscriberInfo(matchingSkills);
 
         std::shared_ptr<EventSubscriber> subscriber = std::make_shared<EventSubscriber>(subscriberInfo);
-        if (subscriber == nullptr) {
+        if (!subscriber) {
             IMSA_HILOGI("ImCommonEventManager::SubscribeEvent subscriber is nullptr");
             return false;
         }
diff --git a/services/src/input_attribute.cpp b/services/src/input_attribute.cpp
index dfdc64d..8d9119a 100644
--- a/services/src/input_attribute.cpp
+++ b/services/src/input_attribute.cpp
@@ -89,10 +89,7 @@ namespace MiscServices {
     */
     bool InputAttribute::GetSecurityFlag()
     {
-        if (inputPattern == PATTERN_PASSWORD) {
-            return true;
-        }
-        return false;
+        return inputPattern == PATTERN_PASSWORD;
     }
 
     /*! Set input pattern.
diff --git a/services/src/input_method_ability_connection_stub.cpp b/services/src/input_method_ability_connection_stub.cpp
index 20cdca4..1877569 100644
--- a/services/src/input_method_ability_connection_stub.cpp
+++ b/services/src/input_method_ability_connection_stub.cpp
@@ -32,7 +32,7 @@ namespace MiscServices {
                                                                 const sptr<IRemoteObject> &remoteObject, int resultCode)
     {
         IMSA_HILOGE("ConnectAbility: OnAbilityConnectDone.");
-        if (messageHandler != nullptr) {
+        if (messageHandler) {
             MessageParcel *data = new MessageParcel();
             data->WriteParcelable(&element);
             data->WriteRemoteObject(remoteObject);
@@ -46,7 +46,7 @@ namespace MiscServices {
                                                                    int resultCode)
     {
         IMSA_HILOGE("ConnectAbility: OnAbilityDisconnectDone.");
-        if (messageHandler != nullptr) {
+        if (messageHandler) {
             MessageParcel *data = new MessageParcel();
             data->WriteParcelable(&element);
             data->WriteInt32(mIndex);
diff --git a/services/src/input_method_property.cpp b/services/src/input_method_property.cpp
index 8d1ecc4..53bd881 100644
--- a/services/src/input_method_property.cpp
+++ b/services/src/input_method_property.cpp
@@ -103,7 +103,7 @@ namespace MiscServices {
             return false;
         int32_t size = (int32_t)mTypes.size();
         parcel.WriteInt32(size);
-        if (size == 0) {
+        if (!size) {
             return true;
         }
         for (int i = 0; i < size; i++) {
@@ -132,7 +132,7 @@ namespace MiscServices {
         info->description = parcel.ReadString16();
 
         int32_t size = parcel.ReadInt32();
-        if (size == 0)
+        if (!size)
             return info;
         for (int i = 0; i < size; i++) {
             info->mTypes.push_back(parcel.ReadParcelable<KeyboardType>());
diff --git a/services/src/input_method_system_ability.cpp b/services/src/input_method_system_ability.cpp
index c4c3fb9..603a588 100644
--- a/services/src/input_method_system_ability.cpp
+++ b/services/src/input_method_system_ability.cpp
@@ -97,9 +97,9 @@ namespace MiscServices {
 
     sptr<InputMethodSystemAbility> InputMethodSystemAbility::GetInstance()
     {
-        if (instance_ == nullptr) {
+        if (!instance_) {
             std::lock_guard<std::mutex> autoLock(instanceLock_);
-            if (instance_ == nullptr) {
+            if (!instance_) {
                 instance_ = new InputMethodSystemAbility;
             }
         }
@@ -156,7 +156,7 @@ namespace MiscServices {
     void InputMethodSystemAbility::InitServiceHandler()
     {
         IMSA_HILOGI("InitServiceHandler started.");
-        if (serviceHandler_ != nullptr) {
+        if (serviceHandler_) {
             IMSA_HILOGI("InitServiceHandler already init.");
             return;
         }
@@ -209,7 +209,7 @@ namespace MiscServices {
         if (it == msgHandlers.end()) {
             IMSA_HILOGE("InputMethodSystemAbility::StartInputService() need start handler");
             MessageHandler *handler = new MessageHandler();
-            if (session != nullptr) {
+            if (session) {
                 IMSA_HILOGE("InputMethodSystemAbility::OnPrepareInput session is not nullptr");
                 session->CreateWorkThread(*handler);
                 msgHandlers.insert(std::pair<int32_t, MessageHandler*>(MAIN_USER_ID, handler));
@@ -218,13 +218,13 @@ namespace MiscServices {
 
         bool isStartSuccess = false;
         sptr<AAFwk::IAbilityManager> abms = GetAbilityManagerService();
-        if (abms != nullptr) {
+        if (abms) {
             AAFwk::Want want;
             want.SetAction("action.system.inputmethod");
             std::string::size_type pos = imeId.find("/");
             want.SetElementName(imeId.substr(0, pos), imeId.substr(pos + 1));
             int32_t result = abms->StartAbility(want);
-            if (result != 0) {
+            if (result) {
                 IMSA_HILOGE("InputMethodSystemAbility::StartInputService fail. result = %{public}d", result);
                 isStartSuccess = false;
             } else {
@@ -243,7 +243,7 @@ namespace MiscServices {
     {
         IMSA_HILOGE("InputMethodSystemAbility::StopInputService(%{public}s)", imeId.c_str());
         PerUserSession *session = GetUserSession(MAIN_USER_ID);
-        if (session == nullptr){
+        if (!session){
             IMSA_HILOGE("InputMethodSystemAbility::StopInputService abort session is nullptr");
             return;
         }
@@ -259,7 +259,7 @@ namespace MiscServices {
     int32_t InputMethodSystemAbility::GetUserState(int32_t userId)
     {
         PerUserSetting *setting = GetUserSetting(userId);
-        if (setting == nullptr) {
+        if (!setting) {
             return UserState::USER_STATE_NOT_AVAILABLE;
         }
         return setting->GetUserState();
@@ -290,7 +290,7 @@ namespace MiscServices {
         int32_t uid = IPCSkeleton::GetCallingUid();
         int32_t userId = getUserId(uid);
         PerUserSetting *setting = GetUserSetting(userId);
-        if (setting == nullptr || setting->GetUserState() != UserState::USER_STATE_UNLOCKED) {
+        if (!setting || setting->GetUserState() != UserState::USER_STATE_UNLOCKED) {
             IMSA_HILOGE("%s %d\n", ErrorCode::ToString(ErrorCode::ERROR_USER_NOT_UNLOCKED), userId);
             return ErrorCode::ERROR_USER_NOT_UNLOCKED;
         }
@@ -309,7 +309,7 @@ namespace MiscServices {
         int32_t uid = IPCSkeleton::GetCallingUid();
         int32_t userId = getUserId(uid);
         PerUserSetting *setting = GetUserSetting(userId);
-        if (setting == nullptr || setting->GetUserState() != UserState::USER_STATE_UNLOCKED) {
+        if (!setting || setting->GetUserState() != UserState::USER_STATE_UNLOCKED) {
             IMSA_HILOGE("%s %d\n", ErrorCode::ToString(ErrorCode::ERROR_USER_NOT_UNLOCKED), userId);
             return ErrorCode::ERROR_USER_NOT_UNLOCKED;
         }
@@ -333,17 +333,17 @@ namespace MiscServices {
         int32_t uid = IPCSkeleton::GetCallingUid();
         int32_t userId = getUserId(uid);
         PerUserSetting *setting = GetUserSetting(userId);
-        if (setting == nullptr || setting->GetUserState() != UserState::USER_STATE_UNLOCKED) {
+        if (!setting || setting->GetUserState() != UserState::USER_STATE_UNLOCKED) {
             IMSA_HILOGE("%s %d\n", ErrorCode::ToString(ErrorCode::ERROR_USER_NOT_UNLOCKED), userId);
             return ErrorCode::ERROR_USER_NOT_UNLOCKED;
         }
 
         PerUserSession *userSession = GetUserSession(userId);
-        if (userSession == nullptr) {
+        if (user!session) {
             return ErrorCode::ERROR_NULL_POINTER;
         }
         KeyboardType *type = userSession->GetCurrentKeyboardType();
-        if (type == nullptr) {
+        if (!type) {
             return ErrorCode::ERROR_NULL_POINTER;
         }
         *retType = *type;
@@ -361,7 +361,7 @@ namespace MiscServices {
         int32_t uid = IPCSkeleton::GetCallingUid();
         int32_t userId = getUserId(uid);
         PerUserSetting *setting = GetUserSetting(userId);
-        if (setting == nullptr || setting->GetUserState() != UserState::USER_STATE_UNLOCKED) {
+        if (!setting || setting->GetUserState() != UserState::USER_STATE_UNLOCKED) {
             IMSA_HILOGE("%s %d\n", ErrorCode::ToString(ErrorCode::ERROR_USER_NOT_UNLOCKED), userId);
             return ErrorCode::ERROR_USER_NOT_UNLOCKED;
         }
@@ -400,7 +400,7 @@ namespace MiscServices {
         }
         for (auto extension : extensionInfos) {
             std::shared_ptr<Global::Resource::ResourceManager> resourceManager(Global::Resource::CreateResourceManager());
-            if (resourceManager == nullptr) {
+            if (!resourceManager) {
                 IMSA_HILOGI("InputMethodSystemAbility::listInputMethodByUserId resourcemanager is nullptr");
                 break;
             }
@@ -434,7 +434,7 @@ namespace MiscServices {
         int32_t uid = IPCSkeleton::GetCallingUid();
         int32_t userId = getUserId(uid);
         PerUserSetting *setting = GetUserSetting(userId);
-        if (setting == nullptr || setting->GetUserState() != UserState::USER_STATE_UNLOCKED) {
+        if (!setting || setting->GetUserState() != UserState::USER_STATE_UNLOCKED) {
             IMSA_HILOGE("%s %d\n", ErrorCode::ToString(ErrorCode::ERROR_USER_NOT_UNLOCKED), userId);
             return ErrorCode::ERROR_USER_NOT_UNLOCKED;
         }
@@ -540,7 +540,7 @@ namespace MiscServices {
                         Message *destMsg = new Message(MSG_ID_EXIT_SERVICE, nullptr);
                         handler->SendMessage(destMsg);
                         PerUserSession *userSession = GetUserSession(it->first);
-                        if (userSession == nullptr) {
+                        if (user!session) {
                             IMSA_HILOGE("getUserSession fail.");
                             return;
                         }
@@ -568,7 +568,7 @@ namespace MiscServices {
     int32_t InputMethodSystemAbility::OnUserStarted(const Message *msg)
     {
         IMSA_HILOGI("InputMethodSystemAbility::OnUserStarted Start...\n");
-        if (msg->msgContent_ == nullptr) {
+        if (!msg->msgContent_) {
             IMSA_HILOGE("Aborted! %s\n", ErrorCode::ToString(ErrorCode::ERROR_BAD_PARAMETERS));
             return ErrorCode::ERROR_BAD_PARAMETERS;
         }
@@ -585,7 +585,7 @@ namespace MiscServices {
         }
 
         PerUserSetting *setting = GetUserSetting(userId);
-        if (setting != nullptr) {
+        if (setting) {
             IMSA_HILOGE("Aborted! %s %d\n", ErrorCode::ToString(ErrorCode::ERROR_USER_ALREADY_STARTED), userId);
             return ErrorCode::ERROR_USER_ALREADY_STARTED;
         }
@@ -607,14 +607,14 @@ namespace MiscServices {
     int32_t InputMethodSystemAbility::OnUserStopped(const Message *msg)
     {
         IMSA_HILOGI("Start...\n");
-        if (msg->msgContent_ == nullptr) {
+        if (!msg->msgContent_) {
             IMSA_HILOGE("Aborted! %s\n", ErrorCode::ToString(ErrorCode::ERROR_BAD_PARAMETERS));
             return ErrorCode::ERROR_BAD_PARAMETERS;
         }
         int32_t userId = msg->msgContent_->ReadInt32();
         PerUserSetting *setting = GetUserSetting(userId);
         PerUserSession *session = GetUserSession(userId);
-        if (setting == nullptr || session == nullptr) {
+        if (!setting || !session) {
             IMSA_HILOGE("Aborted! %s %d\n", ErrorCode::ToString(ErrorCode::ERROR_USER_NOT_STARTED), userId);
             return ErrorCode::ERROR_USER_NOT_STARTED;
         }
@@ -643,14 +643,14 @@ namespace MiscServices {
     int32_t InputMethodSystemAbility::OnUserUnlocked(const Message *msg)
     {
         IMSA_HILOGI("Start...\n");
-        if (msg->msgContent_ == nullptr) {
+        if (!msg->msgContent_) {
             IMSA_HILOGE("Aborted! %s\n", ErrorCode::ToString(ErrorCode::ERROR_BAD_PARAMETERS));
             return ErrorCode::ERROR_BAD_PARAMETERS;
         }
         int32_t userId = msg->msgContent_->ReadInt32();
         PerUserSetting *setting = GetUserSetting(userId);
         PerUserSession *session = GetUserSession(userId);
-        if (setting == nullptr || session == nullptr) {
+        if (!setting || !session) {
             IMSA_HILOGE("Aborted! %s %d\n", ErrorCode::ToString(ErrorCode::ERROR_USER_NOT_STARTED), userId);
             return ErrorCode::ERROR_USER_NOT_STARTED;
         }
@@ -678,13 +678,13 @@ namespace MiscServices {
     int32_t InputMethodSystemAbility::OnUserLocked(const Message *msg)
     {
         IMSA_HILOGI("Start...\n");
-        if (msg->msgContent_ == nullptr) {
+        if (!msg->msgContent_) {
             IMSA_HILOGE("Aborted! %s\n", ErrorCode::ToString(ErrorCode::ERROR_BAD_PARAMETERS));
             return ErrorCode::ERROR_BAD_PARAMETERS;
         }
         int32_t userId = msg->msgContent_->ReadInt32();
         PerUserSetting *setting = GetUserSetting(userId);
-        if (setting == nullptr || setting->GetUserState() != UserState::USER_STATE_UNLOCKED) {
+        if (!setting || setting->GetUserState() != UserState::USER_STATE_UNLOCKED) {
             IMSA_HILOGE("Aborted! %s %d\n", ErrorCode::ToString(ErrorCode::ERROR_USER_NOT_UNLOCKED), userId);
             return ErrorCode::ERROR_USER_NOT_UNLOCKED;
         }
@@ -692,10 +692,10 @@ namespace MiscServices {
         if (it != msgHandlers.end()) {
             MessageHandler *handler = it->second;
             Message *destMsg = new Message(MSG_ID_USER_LOCK, nullptr);
-            if (destMsg != nullptr) {
+            if (destMsg) {
                 handler->SendMessage(destMsg);
                 PerUserSession *userSession = GetUserSession(userId);
-                if (userSession != nullptr) {
+                if (userSession) {
                     userSession->JoinWorkThread();
                 }
                 msgHandlers.erase(it);
@@ -719,10 +719,10 @@ namespace MiscServices {
         MessageParcel *data = msg->msgContent_;
         int32_t userId = data->ReadInt32();
         PerUserSetting *setting = GetUserSetting(MAIN_USER_ID);
-        if (setting == nullptr) {
+        if (!setting) {
             IMSA_HILOGE("InputMethodSystemAbility::OnHandleMessage Aborted! setting is nullptr");
         }
-        if (setting == nullptr || setting->GetUserState() != UserState::USER_STATE_UNLOCKED) {
+        if (!setting || setting->GetUserState() != UserState::USER_STATE_UNLOCKED) {
             IMSA_HILOGE("InputMethodSystemAbility::OnHandleMessage Aborted! userId = %{public}d,", userId);
             return ErrorCode::ERROR_USER_NOT_UNLOCKED;
         }
@@ -755,7 +755,7 @@ namespace MiscServices {
         }
         std::u16string packageName = data->ReadString16();
         PerUserSetting *setting = GetUserSetting(userId);
-        if (setting == nullptr || setting->GetUserState() != UserState::USER_STATE_UNLOCKED) {
+        if (!setting || setting->GetUserState() != UserState::USER_STATE_UNLOCKED) {
             IMSA_HILOGE("Aborted! %s %d\n", ErrorCode::ToString(ErrorCode::ERROR_USER_NOT_UNLOCKED), userId);
             return ErrorCode::ERROR_USER_NOT_UNLOCKED;
         }
@@ -785,7 +785,7 @@ namespace MiscServices {
     {
         IMSA_HILOGI("Start...\n");
         MessageParcel *data = msg->msgContent_;
-        if (data == nullptr) {
+        if (!data) {
             IMSA_HILOGI("InputMethodSystemAbility::OnPackageRemoved data is nullptr");
             return ErrorCode::ERROR_NULL_POINTER;
         }
@@ -798,12 +798,12 @@ namespace MiscServices {
         }
         std::u16string packageName = data->ReadString16();
         PerUserSetting *setting = GetUserSetting(userId);
-        if (setting == nullptr || setting->GetUserState() != UserState::USER_STATE_UNLOCKED) {
+        if (!setting || setting->GetUserState() != UserState::USER_STATE_UNLOCKED) {
             IMSA_HILOGE("Aborted! %s %d\n", ErrorCode::ToString(ErrorCode::ERROR_USER_NOT_UNLOCKED), userId);
             return ErrorCode::ERROR_USER_NOT_UNLOCKED;
         }
         PerUserSession *session = GetUserSession(userId);
-        if (session == nullptr) {
+        if (!session) {
             IMSA_HILOGI("InputMethodSystemAbility::OnPackageRemoved session is nullptr");
             return ErrorCode::ERROR_NULL_POINTER;
         }
@@ -842,12 +842,12 @@ namespace MiscServices {
         std::u16string updatedKey = data->ReadString16();
         std::u16string updatedValue = data->ReadString16();
         PerUserSetting *setting = GetUserSetting(userId);
-        if (setting == nullptr || setting->GetUserState() != UserState::USER_STATE_UNLOCKED) {
+        if (!setting || setting->GetUserState() != UserState::USER_STATE_UNLOCKED) {
             IMSA_HILOGE("Aborted! %s %d\n", ErrorCode::ToString(ErrorCode::ERROR_USER_NOT_UNLOCKED), userId);
             return ErrorCode::ERROR_USER_NOT_UNLOCKED;
         }
         PerUserSession *session = GetUserSession(userId);
-        if (session == nullptr) {
+        if (!session) {
             return ErrorCode::ERROR_NULL_POINTER;
         }
         int32_t ret = session->OnSettingChanged(updatedKey, updatedValue);
@@ -864,7 +864,7 @@ namespace MiscServices {
         }
 
         ret = setting->OnSettingChanged(updatedKey, updatedValue);
-        if (ret != 0) {
+        if (ret) {
             IMSA_HILOGI("End...No need to update\n");
             return ret;
         }
@@ -881,7 +881,7 @@ namespace MiscServices {
         IMSA_HILOGI("InputMethodSystemAbility::OnDisplayOptionalInputMethod");
         std::vector<InputMethodProperty*> properties;
         listInputMethodByUserId(userId, &properties);
-        if (properties.size() == 0) {
+        if (!properties.size()) {
             IMSA_HILOGI("InputMethodSystemAbility::OnDisplayOptionalInputMethod has no ime");
             return;
         }
@@ -899,11 +899,11 @@ namespace MiscServices {
             std::string imeId = Str16ToStr8(property->mPackageName) + "/" + Str16ToStr8(property->mAbilityName);
             params += "{\"ime\": \"" + imeId + "\",";
             params += "\"labelId\": \"" + std::to_string(property->labelId) + "\",";
-            params += "\"discriptionId\": \"" + std::to_string(property->descriptionId) + "\",";
+            params += "\"descriptionId\": \"" + std::to_string(property->descriptionId) + "\",";
             std::string isDefaultIme = defaultIme == imeId ? "true" : "false";
             params += "\"isDefaultIme\": \"" + isDefaultIme + "\",";
             params += "\"label\": \"" + Str16ToStr8(property->label) + "\",";
-            params += "\"discription\": \"" + Str16ToStr8(property->description) + "\"";
+            params += "\"description\": \"" + Str16ToStr8(property->description) + "\"";
         }
         params += "}]}";
 
@@ -951,7 +951,7 @@ namespace MiscServices {
         int32_t userId = data->ReadInt32();
         std::u16string imeId = data->ReadString16();
         PerUserSetting *setting = GetUserSetting(userId);
-        if (setting == nullptr || setting->GetUserState() != UserState::USER_STATE_UNLOCKED) {
+        if (!setting || setting->GetUserState() != UserState::USER_STATE_UNLOCKED) {
             IMSA_HILOGE("Aborted! %s %d\n", ErrorCode::ToString(ErrorCode::ERROR_USER_NOT_UNLOCKED), userId);
             return ErrorCode::ERROR_USER_NOT_UNLOCKED;
         }
@@ -977,7 +977,7 @@ namespace MiscServices {
         int32_t userId = data->ReadInt32();
         bool isCurrentIme = data->ReadBool();
         PerUserSetting *setting = GetUserSetting(userId);
-        if (setting == nullptr || setting->GetUserState() != UserState::USER_STATE_UNLOCKED) {
+        if (!setting || setting->GetUserState() != UserState::USER_STATE_UNLOCKED) {
             IMSA_HILOGE("Aborted! %s %d\n", ErrorCode::ToString(ErrorCode::ERROR_USER_NOT_UNLOCKED), userId);
             return ErrorCode::ERROR_USER_NOT_UNLOCKED;
         }
@@ -999,7 +999,7 @@ namespace MiscServices {
         IMSA_HILOGI("InputMethodSystemAbility::GetBundleMgr");
         sptr<ISystemAbilityManager> systemAbilityManager =
         SystemAbilityManagerClient::GetInstance().GetSystemAbilityManager();
-        if (systemAbilityManager == nullptr) {
+        if (!systemAbilityManager) {
             IMSA_HILOGI("InputMethodSystemAbility::GetBundleMgr systemAbilityManager is nullptr");
             return nullptr;
         }
@@ -1013,7 +1013,7 @@ namespace MiscServices {
         IMSA_HILOGE("InputMethodSystemAbility::GetAbilityManagerService start");
         sptr<IRemoteObject> abilityMsObj =
         OHOS::DelayedSingleton<AAFwk::SaMgrClient>::GetInstance()->GetSystemAbility(ABILITY_MGR_SERVICE_ID);
-        if (abilityMsObj == nullptr) {
+        if (!abilityMsObj) {
             IMSA_HILOGE("failed to get ability manager service");
             return nullptr;
         }
diff --git a/services/src/message.cpp b/services/src/message.cpp
index a33ed29..e39f48c 100644
--- a/services/src/message.cpp
+++ b/services/src/message.cpp
@@ -36,7 +36,7 @@ namespace MiscServices {
     Message::Message(const Message& msg)
     {
         msgId_ = msg.msgId_;
-        if (msgContent_ != nullptr) {
+        if (msgContent_) {
             delete msgContent_;
             msgContent_ = nullptr;
         }
@@ -53,7 +53,7 @@ namespace MiscServices {
             return *this;
         }
         msgId_ = msg.msgId_;
-        if (msgContent_ != nullptr) {
+        if (msgContent_) {
             delete msgContent_;
             msgContent_ = nullptr;
         }
diff --git a/services/src/message_handler.cpp b/services/src/message_handler.cpp
index d9e8e50..fe5ad2a 100644
--- a/services/src/message_handler.cpp
+++ b/services/src/message_handler.cpp
@@ -28,7 +28,7 @@ namespace MiscServices {
     MessageHandler::~MessageHandler()
     {
         std::unique_lock<std::mutex> lock(mMutex);
-        while (! mQueue.empty()) {
+        while (!mQueue.empty()) {
             Message *msg = mQueue.front();
             mQueue.pop();
             delete msg;
@@ -71,7 +71,7 @@ namespace MiscServices {
     MessageHandler *MessageHandler::Instance()
     {
         static MessageHandler *handler = nullptr;
-        if (handler == nullptr) {
+        if (!handler) {
             handler = new MessageHandler();
         }
         return handler;
diff --git a/services/src/peruser_session.cpp b/services/src/peruser_session.cpp
index 1460126..00f6929 100644
--- a/services/src/peruser_session.cpp
+++ b/services/src/peruser_session.cpp
@@ -118,7 +118,7 @@ namespace MiscServices {
     */
     void PerUserSession::WorkThread()
     {
-        if (msgHandler == nullptr) {
+        if (!msgHandler) {
             return;
         }
         while (1) {
@@ -239,7 +239,7 @@ namespace MiscServices {
         std::unique_lock<std::mutex> lock(mtx);
         InputMethodProperty *ime[] = {defaultIme, securityIme};
         for (int i = 0; i < MIN_IME; i++) {
-            if (currentIme[i] == ime[i] && ime[i] != nullptr) {
+            if (currentIme[i] == ime[i] && ime[i]) {
                 continue;
             }
             if (imsCore[i]) {
@@ -247,7 +247,7 @@ namespace MiscServices {
             }
             IncreaseOrResetImeError(true, i);
             currentIme[i] = ime[i];
-            if (currentIme[i] == nullptr) {
+            if (!currentIme[i]) {
                 if (needReshowClient && GetImeIndex(needReshowClient) == i) {
                     needReshowClient = nullptr;
                 }
@@ -327,13 +327,13 @@ namespace MiscServices {
     {
         IMSA_HILOGI("PerUserSession::AddClient");
         ClientInfo *clientInfo = GetClientInfo(inputClient);
-        if (clientInfo != nullptr) {
+        if (clientInfo) {
             IMSA_HILOGE("PerUserSession::AddClient clientInfo is exist, not need add.");
             return ErrorCode::NO_ERROR;
         }
 
         sptr<IRemoteObject> obj = inputClient->AsObject();
-        if (obj == nullptr) {
+        if (!obj) {
              IMSA_HILOGE("PerUserSession::AddClient inputClient AsObject is nullptr");
              return ErrorCode::ERROR_REMOTE_CLIENT_DIED;
         }
@@ -399,7 +399,7 @@ namespace MiscServices {
     {
         IMSA_HILOGI("PerUserSession::StartInputMethod index = %{public}d [%{public}d]\n", index, userId_);
 
-        if (imsCore[index] == nullptr) {
+        if (!imsCore[index]) {
             IMSA_HILOGI("PerUserSession::StartInputMethod imscore is null");
             return ErrorCode::ERROR_IME_BIND_FAILED;
         }
@@ -433,11 +433,11 @@ namespace MiscServices {
             IMSA_HILOGE("Aborted! %{public}s", ErrorCode::ToString(ErrorCode::ERROR_BAD_PARAMETERS));
             return ErrorCode::ERROR_BAD_PARAMETERS;
         }
-        if (imsCore[index] == nullptr || currentIme[index] == nullptr) {
+        if (!imsCore[index] || !currentIme[index]) {
             IMSA_HILOGE("Aborted! %{public}s", ErrorCode::ToString(ErrorCode::ERROR_IME_NOT_STARTED));
             return ErrorCode::ERROR_IME_NOT_STARTED;
         }
-        if (currentIme[index] == currentIme[1 - index] && imsCore[1 - index] != nullptr) {
+        if (currentIme[index] == currentIme[1 - index] && imsCore[1 - index]) {
             imsCore[index] = nullptr;
             inputControlChannel[index] = nullptr;
             localControlChannel[index] = nullptr;
@@ -482,12 +482,12 @@ namespace MiscServices {
         IMSA_HILOGI("PerUserSession::ShowKeyboard");
         ClientInfo *clientInfo = GetClientInfo(inputClient);
         int index = GetImeIndex(inputClient);
-        if (index == -1 || clientInfo == nullptr) {
+        if (index == -1 || !clientInfo) {
             IMSA_HILOGE("PerUserSession::ShowKeyboard Aborted! index = -1 or clientInfo is nullptr");
             return ErrorCode::ERROR_CLIENT_NOT_FOUND;
         }
 
-        if (imsCore[0] == nullptr) {
+        if (!imsCore[0]) {
             IMSA_HILOGE("PerUserSession::ShowKeyboard Aborted! imsCore[%{public}d] is nullptr", index);
             return ErrorCode::ERROR_NULL_POINTER;
         }
@@ -516,10 +516,10 @@ namespace MiscServices {
             return ErrorCode::ERROR_CLIENT_NOT_FOUND;
         }
         ClientInfo *clientInfo = GetClientInfo(inputClient);
-        if (clientInfo == nullptr) {
+        if (!clientInfo) {
             IMSA_HILOGE("PerUserSession::HideKeyboard GetClientInfo pointer nullptr");
         }
-        if (imsCore[0] == nullptr) {
+        if (!imsCore[0]) {
             IMSA_HILOGE("PerUserSession::HideKeyboard imsCore[index] is nullptr");
             return ErrorCode::ERROR_IME_NOT_STARTED;
         }
@@ -527,7 +527,7 @@ namespace MiscServices {
         bool ret = imsCore[0]->hideKeyboard(1);
         if (!ret) {
             IMSA_HILOGE("PerUserSession::HideKeyboard [imsCore->hideKeyboard] failed");
-            ret = ErrorCode::ERROR_KBD_HIDE_FAILED;
+            return ErrorCode::ERROR_KBD_HIDE_FAILED;
         }
 
         return ErrorCode::NO_ERROR;
@@ -535,7 +535,7 @@ namespace MiscServices {
 
     /*! Get the display mode of the current keyboard showing
     \return return display mode.
-    \n 0 - part sceen mode, 1 - full sceen mode
+    \n 0 - part screen mode, 1 - full screen mode
     */
     int PerUserSession::GetDisplayMode()
     {
@@ -548,7 +548,7 @@ namespace MiscServices {
     */
     int PerUserSession::GetKeyboardWindowHeight(int retHeight)
     {
-        if (imsCore[lastImeIndex] != nullptr) {
+        if (imsCore[lastImeIndex]) {
             int ret = imsCore[lastImeIndex]->getKeyboardWindowHeight(retHeight);
             if (ret != ErrorCode::NO_ERROR) {
                 IMSA_HILOGE("getKeyboardWindowHeight return : %{public}s", ErrorCode::ToString(ret));
@@ -566,7 +566,7 @@ namespace MiscServices {
     */
     KeyboardType *PerUserSession::GetCurrentKeyboardType()
     {
-        if (inputMethodSetting == nullptr || currentIme[DEFAULT_IME] == nullptr) {
+        if (!inputMethodSetting || !currentIme[DEFAULT_IME]) {
             IMSA_HILOGI("Ime has not started ! [%{public}d]\n", userId_);
             return nullptr;
         }
@@ -576,7 +576,7 @@ namespace MiscServices {
         int hashCode = inputMethodSetting->GetCurrentKeyboardType();  // To be checked.
         if (hashCode == -1) {
             std::vector<int> hashCodeList = inputMethodSetting->GetEnabledKeyboardTypes(currentIme[DEFAULT_IME]->mImeId);
-            if (hashCodeList.size() == 0) {
+            if (!hashCodeList.size()) {
                 IMSA_HILOGE("Cannot find any keyboard types for the current ime [%{public}d]\n", userId_);
                 return nullptr;
             }
@@ -614,7 +614,7 @@ namespace MiscServices {
 
         sptr<IInputClient> client = it->second->client;
         int remainClientNum = 0;
-        if (currentClient != nullptr) {
+        if (currentClient) {
             HideKeyboard(client);
         }
         RemoveClient(client, remainClientNum);
@@ -630,7 +630,7 @@ namespace MiscServices {
         IMSA_HILOGI("Start...[%{public}d]\n", userId_);
         int index = 0;
         for (int i = 0; i < MAX_IME; i++) {
-            if (imsCore[i] == nullptr) {
+            if (!imsCore[i]) {
                 continue;
             }
             sptr<IRemoteObject> b = imsCore[i]->AsObject();
@@ -680,7 +680,7 @@ namespace MiscServices {
     {
         IMSA_HILOGI("Start...[%{public}d]\n", userId_);
         std::unique_lock<std::mutex> lock(mtx);
-        if (inputMethodSetting == nullptr) {
+        if (!inputMethodSetting) {
             return ErrorCode::ERROR_NULL_POINTER;
         }
         std::u16string currentValue = inputMethodSetting->GetValue(key);
@@ -699,11 +699,11 @@ namespace MiscServices {
         } else if (key == InputMethodSetting::CURRENT_SYS_KEYBOARD_TYPE_TAG) {
             return OnCurrentKeyboardTypeChanged(SECURITY_IME, value);
         } else if (key == InputMethodSetting::CURRENT_INPUT_METHOD_TAG) {
-            if (currentIme[DEFAULT_IME] == nullptr ||
+            if (!currentIme[DEFAULT_IME] ||
                 value == currentIme[DEFAULT_IME]->mImeId) {
                 return ErrorCode::NO_ERROR;
             }
-            if (currentClient != nullptr && GetImeIndex(currentClient) == DEFAULT_IME) {
+            if (currentClient && GetImeIndex(currentClient) == DEFAULT_IME) {
                 needReshowClient = currentClient;
                 HideKeyboard(currentClient);
             }
@@ -714,7 +714,7 @@ namespace MiscServices {
         } else if (key == InputMethodSetting::ENABLED_INPUT_METHODS_TAG) {
             if (currentIme[DEFAULT_IME] && currentIme[DEFAULT_IME] != currentIme[SECURITY_IME]
                 && value.find(currentIme[DEFAULT_IME]->mImeId) == std::string::npos) {
-                if (currentClient != nullptr && GetImeIndex(currentClient) == DEFAULT_IME) {
+                if (currentClient && GetImeIndex(currentClient) == DEFAULT_IME) {
                     needReshowClient = currentClient;
                     HideKeyboard(currentClient);
                 }
@@ -768,8 +768,8 @@ namespace MiscServices {
             }
         }
         KeyboardType *type = GetKeyboardType(index, currentKbdIndex[index]);
-        if (type != nullptr) {
-            if (currentClient != nullptr) {
+        if (type) {
+            if (currentClient) {
                 int ret = imsCore[index]->setKeyboardType(*type);
                 if (ret != ErrorCode::NO_ERROR) {
                     IMSA_HILOGE("setKeyboardType return : %{public}s [%{public}d]\n", ErrorCode::ToString(ret), userId_);
@@ -821,11 +821,11 @@ namespace MiscServices {
         }
 
         int num = currentKbdIndex[index]+1;
-        if (size != 0) {
+        if (size) {
             num %= size;
         }
         KeyboardType *type = GetKeyboardType(index, num);
-        if (type == nullptr) {
+        if (!type) {
             IMSA_HILOGW("No next keyboard is available. [%{public}d]\n", userId_);
             return;
         }
@@ -844,13 +844,13 @@ namespace MiscServices {
 
     /*! Set display mode
     \param mode the display mode of soft keyboard UI.
-    \n 0 - part sceen mode, 1 - full sceen mode
+    \n 0 - part screen mode, 1 - full screen mode
     */
     void PerUserSession::OnSetDisplayMode(int mode)
     {
         currentDisplayMode = mode;
         ClientInfo *clientInfo = GetClientInfo(currentClient);
-        if (clientInfo == nullptr) {
+        if (!clientInfo) {
             IMSA_HILOGE("%{public}s [%{public}d]\n", ErrorCode::ToString(ErrorCode::ERROR_CLIENT_NOT_FOUND), userId_);
             return;
         }
@@ -893,7 +893,7 @@ namespace MiscServices {
         }
         userState = UserState::USER_STATE_STARTED;
         // hide current keyboard
-        if (currentClient != nullptr) {
+        if (currentClient) {
             HideKeyboard(currentClient);
         }
         for (int i = 0; i < MIN_IME; i++) {
@@ -906,7 +906,7 @@ namespace MiscServices {
             sptr<IRemoteObject> b = it->first;
             b->RemoveDeathRecipient(clientDeathRecipient);
             ClientInfo *clientInfo = it->second;
-            if (clientInfo != nullptr) {
+            if (clientInfo) {
                 int ret = clientInfo->client->onInputReleased(0);
                 if (ret != ErrorCode::NO_ERROR) {
                     IMSA_HILOGE("2-onInputReleased return : %{public}s", ErrorCode::ToString(ret));
@@ -1033,7 +1033,7 @@ namespace MiscServices {
                 currentKbdIndex[1 - imeIndex] = currentKbdIndex[imeIndex];
             }
         }
-        if (type != nullptr) {
+        if (type) {
             InputMethodSetting tmpSetting;
             if (imsCore[imeIndex] == imsCore[1 - imeIndex]) {
                 inputMethodSetting->SetCurrentKeyboardType(type->getHashCode());
@@ -1060,13 +1060,13 @@ namespace MiscServices {
     */
     int PerUserSession::GetImeIndex(const sptr<IInputClient>& inputClient)
     {
-        if (inputClient == nullptr) {
+        if (!inputClient) {
             IMSA_HILOGW("PerUserSession::GetImeIndex inputClient is nullptr");
             return -1;
         }
 
         ClientInfo *clientInfo = GetClientInfo(inputClient);
-        if (clientInfo == nullptr) {
+        if (!clientInfo) {
             IMSA_HILOGW("PerUserSession::GetImeIndex clientInfo is nullptr");
             return -1;
         }
@@ -1112,7 +1112,7 @@ namespace MiscServices {
     */
     ClientInfo *PerUserSession::GetClientInfo(const sptr<IInputClient>& inputClient)
     {
-        if (inputClient == nullptr) {
+        if (!inputClient) {
             IMSA_HILOGE("PerUserSession::GetClientInfo inputClient is nullptr");
             return nullptr;
         }
@@ -1129,14 +1129,14 @@ namespace MiscServices {
     {
         IMSA_HILOGE("PerUserSession::StartInputService");
         sptr<AAFwk::IAbilityManager> ams = GetAbilityManagerService();
-        if (ams == nullptr) {
+        if (!ams) {
             return false;
         }
         AAFwk::Want want;
         want.SetAction("action.system.inputmethod");
         want.SetElementName("com.example.kikakeyboard", "com.example.kikakeyboard.ServiceExtAbility");
         int32_t result = ams->StartAbility(want);
-        if (result != 0) {
+        if (result) {
             IMSA_HILOGE("PerUserSession::StartInputService fail. result = %{public}d", result);
             return false;
         }
@@ -1148,7 +1148,7 @@ namespace MiscServices {
         IMSA_HILOGE("GetAbilityManagerService start");
         sptr<IRemoteObject> abilityMsObj =
         OHOS::DelayedSingleton<AAFwk::SaMgrClient>::GetInstance()->GetSystemAbility(ABILITY_MGR_SERVICE_ID);
-        if (abilityMsObj == nullptr) {
+        if (!abilityMsObj) {
             IMSA_HILOGE("failed to get ability manager service");
             return nullptr;
         }
@@ -1169,18 +1169,19 @@ namespace MiscServices {
         int displayId = data->ReadInt32();
 
         sptr<IRemoteObject> clientObject = data->ReadRemoteObject();
-        if (clientObject == nullptr) {
+        if (!clientObject) {
             IMSA_HILOGI("PerUserSession::OnPrepareInput clientObject is null");
             return;
         }
         sptr<InputClientProxy> client = new InputClientProxy(clientObject);
         sptr<IRemoteObject> channelObject = data->ReadRemoteObject();
-        if (channelObject == nullptr) {
+        if (!channelObject) {
             IMSA_HILOGI("PerUserSession::OnPrepareInput channelObject is null");
+            return;
         }
         sptr<InputDataChannelProxy> channel = new InputDataChannelProxy(channelObject);
         InputAttribute *attribute = data->ReadParcelable<InputAttribute>();
-        if (attribute == nullptr) {
+        if (!attribute) {
             IMSA_HILOGI("PerUserSession::OnPrepareInput attribute is nullptr");
             return;
         }
@@ -1197,12 +1198,12 @@ namespace MiscServices {
     void PerUserSession::SendAgentToSingleClient(const sptr<IInputClient>& inputClient)
     {
         IMSA_HILOGI("PerUserSession::SendAgentToSingleClient");
-        if (imsAgent == nullptr) {
+        if (!imsAgent) {
             IMSA_HILOGI("PerUserSession::SendAgentToSingleClient imsAgent is nullptr");
             return;
         }
         ClientInfo *clientInfo = GetClientInfo(inputClient);
-        if (clientInfo == nullptr) {
+        if (!clientInfo) {
             IMSA_HILOGE("PerUserSession::SendAgentToSingleClient clientInfo is nullptr");
             return;
         }
@@ -1223,7 +1224,7 @@ namespace MiscServices {
         sptr<InputClientProxy> client = new InputClientProxy(clientObject);
         sptr<IInputClient> interface = client;
         int remainClientNum = 0;
-        if (imsCore[0] != nullptr) {
+        if (imsCore[0]) {
             imsCore[0]->SetClientState(false);
         }
         HideKeyboard(client);
@@ -1245,7 +1246,7 @@ namespace MiscServices {
         MessageParcel *data = msg->msgContent_;
         sptr<IRemoteObject> clientObject = data->ReadRemoteObject();
         sptr<InputClientProxy> client = new InputClientProxy(clientObject);
-        if (imsCore[0] != nullptr) {
+        if (imsCore[0]) {
             imsCore[0]->SetClientState(true);
         }
         ShowKeyboard(client);
@@ -1258,7 +1259,7 @@ namespace MiscServices {
 
         sptr<IRemoteObject> coreObject = data->ReadRemoteObject();
         sptr<InputMethodCoreProxy> core = new InputMethodCoreProxy(coreObject);
-        if (imsCore[0] != nullptr) {
+        if (imsCore[0]) {
             IMSA_HILOGI("PerUserSession::SetCoreAndAgent Input Method Service has already been started ! ");
         }
         imsCore[0] = core;
@@ -1275,7 +1276,7 @@ namespace MiscServices {
     void PerUserSession::SendAgentToAllClients()
     {
         IMSA_HILOGI("PerUserSession::SendAgentToAllClients");
-        if (imsAgent == nullptr) {
+        if (!imsAgent) {
             IMSA_HILOGI("PerUserSession::SendAgentToAllClients imsAgent is nullptr");
             return;
         }
@@ -1283,7 +1284,7 @@ namespace MiscServices {
         for (std::map<sptr<IRemoteObject>, ClientInfo*>::iterator it = mapClients.begin();
             it != mapClients.end(); ++it) {
             ClientInfo *clientInfo = (ClientInfo*) it->second;
-            if (clientInfo != nullptr) {
+            if (clientInfo) {
                 clientInfo->client->onInputReady(imsAgent);
             }
         }
@@ -1317,7 +1318,7 @@ namespace MiscServices {
     void PerUserSession::StopInputService(std::string imeId)
     {
         IMSA_HILOGI("PerUserSession::StopInputService");
-        if (imsCore[0] != nullptr) {
+        if (imsCore[0]) {
             imsCore[0]->StopInputService(imeId);
         }
     }
diff --git a/services/src/peruser_setting.cpp b/services/src/peruser_setting.cpp
index 017f33d..902ce6f 100644
--- a/services/src/peruser_setting.cpp
+++ b/services/src/peruser_setting.cpp
@@ -53,7 +53,7 @@ namespace MiscServices {
             IMSA_HILOGE("Failed to listInputMethod [%d]\n", userId_);
         }
         int size = inputMethodProperties.size();
-        if (size == 0) {
+        if (!size) {
             currentImeId = Utils::to_utf16("");
         }
 
@@ -82,7 +82,7 @@ namespace MiscServices {
             isSecurityIme = false;
         }
         std::u16string imeId = GetImeId(packageName);
-        if (imeId.size() != 0) {
+        if (imeId.size()) {
             IMSA_HILOGI("%s [%d]\n", ErrorCode::ToString(ErrorCode::ERROR_IME_PACKAGE_DUPLICATED), userId_);
             return ErrorCode::ERROR_IME_PACKAGE_DUPLICATED;
         }
@@ -132,7 +132,7 @@ namespace MiscServices {
             isSecurityIme = false;
         }
         std::u16string imeId = GetImeId(packageName);
-        if (imeId.size() == 0) {
+        if (!imeId.size()) {
             IMSA_HILOGI("%s [%d]\n", ErrorCode::ToString(ErrorCode::ERROR_NOT_IME_PACKAGE), userId_);
             return ErrorCode::ERROR_NOT_IME_PACKAGE;
         }
@@ -193,7 +193,7 @@ namespace MiscServices {
             currentImeId = inputMethodSetting.GetCurrentInputMethod();
         } else if (key == InputMethodSetting::ENABLED_INPUT_METHODS_TAG) {
             if ((currentImeId.size() > 0 && value.find(currentImeId) == std::string::npos) ||
-                currentImeId.size() == 0) {
+                !currentImeId.size()) {
                 ResetCurrentInputMethod();
                 InputMethodSetting tmpSetting;
                 tmpSetting.ClearData();
@@ -222,18 +222,18 @@ namespace MiscServices {
                 if (flag) {
                     nextImeId = imeId;
                     break;
-                } else if (firstEnabledProperty == nullptr) {
+                } else if (!firstEnabledProperty) {
                     firstEnabledProperty = inputMethodProperties[i];
                 }
             }
         }
 
-        if (nextImeId.size() == 0 && firstEnabledProperty) {
+        if (!nextImeId.size() && firstEnabledProperty) {
             nextImeId = firstEnabledProperty->mImeId;
         }
 
         // next enabled ime is not available.
-        if (nextImeId.size() == 0) {
+        if (!nextImeId.size()) {
             IMSA_HILOGW("No next IME is available. [%d]\n", userId_);
             return;
         }
@@ -261,7 +261,7 @@ namespace MiscServices {
         std::vector<InputMethodProperty*>::iterator it;
         for (it = inputMethodProperties.begin(); it < inputMethodProperties.end();) {
             InputMethodProperty *node = (InputMethodProperty*)*it;
-            if (node != nullptr) {
+            if (node) {
                 it = inputMethodProperties.erase(it);
                 delete node;
                 node = nullptr;
@@ -342,10 +342,10 @@ namespace MiscServices {
                 continue;
             }
             // if systemLocales is not setting, return the first security ime
-            if (systemLocales.size() == 0) {
+            if (!systemLocales.size()) {
                 return imp;
             }
-            if (ime == nullptr) {
+            if (!ime) {
                 ime = imp;
             }
             for (int j = 0; j < (int)inputMethodProperties[i]->mTypes.size(); j++) {
@@ -377,7 +377,7 @@ namespace MiscServices {
             } else if (enabledInputMethods.find(imeId) != std::string::npos) {
                 if (flag) {
                     return inputMethodProperties[i];
-                } else if (firstEnabledProperty == nullptr) {
+                } else if (!firstEnabledProperty) {
                     firstEnabledProperty = inputMethodProperties[i];
                 }
             }
@@ -523,7 +523,7 @@ namespace MiscServices {
             if (enabledInputMethods.find(imeId) == std::string::npos) {
                 continue;
             }
-            if (firstEnabledIme == nullptr) {
+            if (!firstEnabledIme) {
                 firstEnabledIme = inputMethodProperties[i];
             }
 
diff --git a/services/src/platform.cpp b/services/src/platform.cpp
index 57c10cd..a095501 100644
--- a/services/src/platform.cpp
+++ b/services/src/platform.cpp
@@ -43,7 +43,7 @@ namespace MiscServices {
     Platform *Platform::Instance()
     {
         static Platform *platform = nullptr;
-        if (platform == nullptr) {
+        if (!platform) {
             platform = new Platform();
         }
         return platform;
@@ -58,7 +58,7 @@ namespace MiscServices {
     sptr<IInputMethodCore> Platform::BindInputMethodService(int userId, const std::u16string& packageName,
                                                             const std::u16string& intention)
     {
-        if (platformApi == nullptr) {
+        if (!platformApi) {
             return nullptr;
         }
         return platformApi->bindInputMethodService(packageName, intention, userId);
@@ -71,7 +71,7 @@ namespace MiscServices {
     */
     int Platform::UnbindInputMethodService(int userId, const std::u16string& packageName)
     {
-        if (platformApi == nullptr) {
+        if (!platformApi) {
             return ErrorCode::ERROR_NULL_POINTER;
         }
         return platformApi->unbindInputMethodService(userId, packageName);
@@ -85,7 +85,7 @@ namespace MiscServices {
     */
     sptr < IRemoteObject > Platform::CreateWindowToken(int userId, int displayId, const std::u16string& packageName)
     {
-        if (platformApi == nullptr) {
+        if (!platformApi) {
             return nullptr;
         }
         return platformApi->createWindowToken(userId, displayId, packageName);
@@ -98,7 +98,7 @@ namespace MiscServices {
     */
     int Platform::DestroyWindowToken(int userId, const std::u16string& packageName)
     {
-        if (platformApi == nullptr) {
+        if (!platformApi) {
             return ErrorCode::ERROR_NULL_POINTER;
         }
         return platformApi->destroyWindowToken(userId, packageName);
@@ -123,7 +123,7 @@ namespace MiscServices {
     int Platform::GetInputMethodProperty(int userId, const std::u16string& packageName,
                                          InputMethodProperty *inputMethodProperty)
     {
-        if (platformApi == nullptr) {
+        if (!platformApi) {
             return ErrorCode::ERROR_NULL_POINTER;
         }
         return platformApi->getInputMethodProperty(userId, packageName, inputMethodProperty);
@@ -147,7 +147,7 @@ namespace MiscServices {
     */
     int Platform::SetInputMethodSetting(int userId, const InputMethodSetting& inputMethodSetting)
     {
-        if (platformApi == nullptr) {
+        if (!platformApi) {
             return ErrorCode::ERROR_NULL_POINTER;
         }
         return platformApi->setInputMethodSetting(userId, inputMethodSetting);