diff --git a/wmserver/src/zidl/window_manager_proxy.cpp b/wmserver/src/zidl/window_manager_proxy.cpp
index 6aee5483..8c9f04b8 100644
--- a/wmserver/src/zidl/window_manager_proxy.cpp
+++ b/wmserver/src/zidl/window_manager_proxy.cpp
@@ -590,22 +590,12 @@ void WindowManagerProxy::MinimizeWindowsByLauncher(std::vector<uint32_t> windowI
         WLOGFE("WriteInterfaceToken failed");
         return;
     }
-    auto size = static_cast<uint32_t>(windowIds.size());
-    const uint32_t maxWindowNum = 100;
-    if (size > maxWindowNum) {
-        WLOGFE("windowNum cannot exceeds than 100");
+
+    if (!data.WriteUInt32Vector(windowIds)) {
+        WLOGFE("Write windowIds failed");
         return;
     }
-    if (!data.WriteUint32(size)) {
-        WLOGFE("Write windowNum failed");
-        return;
-    }
-    for (auto id : windowIds) {
-        if (!data.WriteUint32(id)) {
-            WLOGFE("Write windowId failed");
-            return;
-        }
-    }
+
     if (!data.WriteBool(isAnimated)) {
         WLOGFE("Write isAnimated failed");
         return;
diff --git a/wmserver/src/zidl/window_manager_stub.cpp b/wmserver/src/zidl/window_manager_stub.cpp
index cee4a0e3..ba9832d4 100644
--- a/wmserver/src/zidl/window_manager_stub.cpp
+++ b/wmserver/src/zidl/window_manager_stub.cpp
@@ -201,10 +201,7 @@ int32_t WindowManagerStub::OnRemoteRequest(uint32_t code, MessageParcel &data, M
         }
         case WindowManagerMessage::TRANS_ID_GET_ANIMATION_CALLBACK: {
             std::vector<uint32_t> windowIds;
-            uint32_t windowNum = data.ReadUint32();
-            for (uint32_t i = 0; i < windowNum; ++i) {
-                windowIds.push_back(data.ReadUint32());
-            }
+            data.ReadUInt32Vector(&windowIds);
             bool isAnimated = data.ReadBool();
             sptr<RSIWindowAnimationFinishedCallback> finishedCallback = nullptr;
             MinimizeWindowsByLauncher(windowIds, isAnimated, finishedCallback);