diff --git a/frameworks/core/components/button/render_button.h b/frameworks/core/components/button/render_button.h
index c2fc781c..be21652b 100644
--- a/frameworks/core/components/button/render_button.h
+++ b/frameworks/core/components/button/render_button.h
@@ -154,7 +154,7 @@ protected:
     RefPtr<ClickRecognizer> clickRecognizer_;
     RefPtr<Animator> progressController_;
 
-    ButtonType type_;
+    ButtonType type_ = ButtonType::NORMAL;
     Size buttonSize_;
     Offset offsetDelta_;
     double rrectRadius_ = 0.0;
diff --git a/frameworks/core/components/calendar/calendar_data_adapter.cpp b/frameworks/core/components/calendar/calendar_data_adapter.cpp
index 89a72d8c..d5efe718 100644
--- a/frameworks/core/components/calendar/calendar_data_adapter.cpp
+++ b/frameworks/core/components/calendar/calendar_data_adapter.cpp
@@ -63,9 +63,9 @@ CalendarDataAdapter::CalendarDataAdapter(
     : dataAdapterAction_(dataAdapterAction), pipelineContext_(pipelineContext)
 {
     Date currentDate = Date::Current();
-    today_.day = currentDate.day;
-    today_.month.year = currentDate.year;
-    today_.month.month = currentDate.month - 1;
+    today_.day = static_cast<int32_t>(currentDate.day);
+    today_.month.year = static_cast<int32_t>(currentDate.year);
+    today_.month.month = static_cast<int32_t>(currentDate.month - 1);
 }
 
 bool CalendarDataAdapter::ParseData(int32_t indexOfContainer, const std::string& source, CalendarDaysOfMonth& result)
@@ -533,7 +533,7 @@ void CalendarDataAdapter::ParseCalendarData(std::queue<ObtainedMonth>&& months)
 
 void CalendarDataAdapter::NotifyDataChanged(const CalendarDaysOfMonth& data, int32_t indexOfContainer)
 {
-    int32_t listenersSize = allListeners_.size();
+    int32_t listenersSize = static_cast<int32_t>(allListeners_.size());
     if (indexOfContainer >= 0 && indexOfContainer < listenersSize) {
         auto& listener = allListeners_[indexOfContainer];
         listener->OnDataChanged(data);
diff --git a/frameworks/core/components/calendar/calendar_data_adapter.h b/frameworks/core/components/calendar/calendar_data_adapter.h
index 2d588700..80fdc798 100644
--- a/frameworks/core/components/calendar/calendar_data_adapter.h
+++ b/frameworks/core/components/calendar/calendar_data_adapter.h
@@ -272,7 +272,7 @@ public:
 
     void NotifySelectedChanged() const
     {
-        int32_t listenersSize = allListeners_.size();
+        int32_t listenersSize = static_cast<int32_t>(allListeners_.size());
         if (indexOfContainer_ >= 0 && indexOfContainer_ < listenersSize) {
             auto& listener = allListeners_[indexOfContainer_];
             listener->OnSelectedDay(selectedDay_);
diff --git a/frameworks/core/components/calendar/flutter_render_calendar.cpp b/frameworks/core/components/calendar/flutter_render_calendar.cpp
index 0d899d27..98d1acf8 100644
--- a/frameworks/core/components/calendar/flutter_render_calendar.cpp
+++ b/frameworks/core/components/calendar/flutter_render_calendar.cpp
@@ -616,8 +616,11 @@ void FlutterRenderCalendar::PaintUnderscore(ScopedCanvas& canvas, const Offset&
     paint.setColor(color);
     paint.setStyle(SkPaint::Style::kStroke_Style);
     paint.setStrokeWidth(NormalizeToPx(underscoreWidth));
-    skCanvas->drawLine(offset.GetX(), offset.GetY() + NormalizeToPx(underscoreWidth) / 2,
-        offset.GetX() + NormalizeToPx(underscoreLength), offset.GetY() + NormalizeToPx(underscoreWidth) / 2, paint);
+    if (skCanvas) {
+        skCanvas->drawLine(offset.GetX(), offset.GetY() + NormalizeToPx(underscoreWidth) / 2.0,
+            offset.GetX() + NormalizeToPx(underscoreLength), offset.GetY() + NormalizeToPx(underscoreWidth) / 2.0,
+            paint);
+    }
 }
 
 void FlutterRenderCalendar::PaintScheduleMarker(ScopedCanvas& canvas, const Offset& offset, const CalendarDay& day)
@@ -636,7 +639,9 @@ void FlutterRenderCalendar::PaintScheduleMarker(ScopedCanvas& canvas, const Offs
     }
     paint.setAntiAlias(true);
     paint.setColor(color);
-    skCanvas->drawCircle(offset.GetX(), offset.GetY(), NormalizeToPx(scheduleMarkerRadius), paint);
+    if (skCanvas) {
+        skCanvas->drawCircle(offset.GetX(), offset.GetY(), NormalizeToPx(scheduleMarkerRadius), paint);
+    }
 }
 
 void FlutterRenderCalendar::InitWorkStateStyle(
diff --git a/frameworks/core/components/calendar/render_calendar.cpp b/frameworks/core/components/calendar/render_calendar.cpp
index b242533f..914c86e2 100644
--- a/frameworks/core/components/calendar/render_calendar.cpp
+++ b/frameworks/core/components/calendar/render_calendar.cpp
@@ -56,7 +56,7 @@ void RenderCalendar::Update(const RefPtr<Component>& component)
     indexOfContainer_ = calendarMonth->GetIndexOfContainer();
     calendarController_ = calendarMonth->GetCalendarController();
     dataAdapter_ = calendarController_->GetDataAdapter();
-    colCount_ = weekNumbers_.size();
+    colCount_ = static_cast<int32_t>(weekNumbers_.size());
     dataAdapter_->RegisterDataListener(AceType::Claim(this));
     type_ = calendarMonth->GetCalendarType();
     if (type_ != CalendarType::SIMPLE) {
@@ -93,9 +93,9 @@ void RenderCalendar::UpdateAccessibility()
     }
     auto today = calendarController_->GetDataAdapter()->GetToday();
     DateTime dateTime;
-    dateTime.year = today.month.year;
-    dateTime.month = today.month.month;
-    dateTime.day = today.day;
+    dateTime.year = static_cast<uint32_t>(today.month.year);
+    dateTime.month = static_cast<uint32_t>(today.month.month);
+    dateTime.day = static_cast<uint32_t>(today.day);
     auto dateText = Localization::GetInstance()->FormatDateTime(dateTime, "yyyyMMdd");
     node->SetText(dateText);
 }
@@ -169,7 +169,7 @@ void RenderCalendar::OnDataChanged(const CalendarDaysOfMonth& daysOfMonth)
         OnStatusChanged(RenderStatus::FOCUS);
     }
     // the number of rows will be 5 or 6, and week number height is half of the date number
-    rowCount_ = colCount_ ? daysOfMonth.days.size() / colCount_ : 0;
+    rowCount_ = colCount_ ? daysOfMonth.days.size() / static_cast<double>(colCount_) : 0;
     calendarController_->JumpMonth();
     hasRequestFocus_ = false;
     cardCalendar_ ? MarkNeedLayout() : MarkNeedRender();
@@ -216,7 +216,7 @@ void RenderCalendar::OnSelectedDay(int32_t selected)
 
 void RenderCalendar::OnStatusChanged(RenderStatus renderStatus)
 {
-    int32_t calendarDaysSize = calendarDays_.size();
+    int32_t calendarDaysSize = static_cast<int32_t>(calendarDays_.size());
     if (renderStatus == RenderStatus::FOCUS) {
         int32_t focusedIndex = selectedDayNumber_ + firstDayIndex_ - 1;
         if (selectedDayNumber_ < 0) {
@@ -269,7 +269,7 @@ void RenderCalendar::OnDateSelected(const CalendarDay& date)
 
 void RenderCalendar::FocusChanged(int32_t oldIndex, int32_t newIndex)
 {
-    int32_t calendarDaysSize = calendarDays_.size();
+    int32_t calendarDaysSize = static_cast<int32_t>(calendarDays_.size());
     if (oldIndex < 0 || oldIndex >= calendarDaysSize) {
         LOGW("lost focus index is out of calendar days array");
         return;
diff --git a/frameworks/core/components/calendar/rosen_render_calendar.cpp b/frameworks/core/components/calendar/rosen_render_calendar.cpp
index 6bc7e1ca..d3db76a9 100644
--- a/frameworks/core/components/calendar/rosen_render_calendar.cpp
+++ b/frameworks/core/components/calendar/rosen_render_calendar.cpp
@@ -437,7 +437,7 @@ void RosenRenderCalendar::DrawTouchedArea(RenderContext& context, Offset offset)
     double dayNumberStartY = topPadding_ + weekHeight_ + weekAndDayRowSpace_ + NormalizeToPx(dateOffset);
     double x = textDirection_ == TextDirection::LTR ? column * (dayWidth_ + colSpace_)
                                                     : (totalWeek - column - 1) * (dayWidth_ + colSpace_);
-    double y = (touchIndex_ / 7) * (dayHeight_ + dailyRowSpace) + dayNumberStartY;
+    double y = (touchIndex_ / 7.0) * (dayHeight_ + dailyRowSpace) + dayNumberStartY;
     Offset circleCenter = Offset(x - (focusedAreaRadius_ * 2 - dayWidth_) / 2 + focusedAreaRadius_,
         y - NormalizeToPx(1.0_vp) + focusedAreaRadius_);
     Offset bgCircleStart = offset + circleCenter;
diff --git a/frameworks/core/components/chart/flutter_render_chart.cpp b/frameworks/core/components/chart/flutter_render_chart.cpp
index 70ceb1b3..32884cc9 100644
--- a/frameworks/core/components/chart/flutter_render_chart.cpp
+++ b/frameworks/core/components/chart/flutter_render_chart.cpp
@@ -259,7 +259,7 @@ void FlutterRenderChart::PaintDatas(RenderContext& context, const Rect& paintRec
         paint.paint()->setAntiAlias(true);
         paint.paint()->setStyle(SkPaint::Style::kStrokeAndFill_Style);
 
-        const int32_t barGroupNumber = mainCharts_.size();
+        const int32_t barGroupNumber = static_cast<int32_t>(mainCharts_.size());
         auto barsAreaNumber = horizontal_.tickNumber;
         for (int32_t barGroupIndex = 0; barGroupIndex < barGroupNumber; ++barGroupIndex) {
             auto barGroup = mainCharts_[barGroupIndex];
@@ -273,7 +273,7 @@ void FlutterRenderChart::UpdateLineGradientPoint(
     const std::vector<LineInfo>& pointInfo, const MainChart& line, const Rect& paintRect)
 {
     if (line.GetHeadPointIndex() > 0 && line.GetErasePointNumber() > 0) {
-        startGradientIndex_ = line.GetHeadPointIndex() + line.GetErasePointNumber() - 1;
+        startGradientIndex_ = static_cast<size_t>(line.GetHeadPointIndex() + line.GetErasePointNumber() - 1);
         endGradientIndex_ = startGradientIndex_ + 1;
         if (static_cast<size_t>(startGradientIndex_) >= pointInfo.size()) {
             startGradientIndex_ = pointInfo.size() - 1;
@@ -516,7 +516,7 @@ void FlutterRenderChart::AddCubicPath(fml::RefPtr<flutter::CanvasPath>& path, co
     // and control point B = [(Xi+1 - (Xi+2 - Xi) / 4), (Yi+1 - (Yi+2 - Yi) / 4)]
     if (index > 0 && index < line.size()) {
         Offset prev = ConvertDataToPosition(
-            paintRect, line[(index - 2 < startIndex_ || index < 2) ? startIndex_ : index - 2].GetPointInfo());
+            paintRect, line[(index < 2 || index - 2 < startIndex_) ? startIndex_ : index - 2].GetPointInfo());
         Offset cur = ConvertDataToPosition(paintRect, line[index - 1].GetPointInfo());
         Offset next = ConvertDataToPosition(paintRect, line[index].GetPointInfo());
         Offset nextNext = ConvertDataToPosition(paintRect,
@@ -608,7 +608,7 @@ void FlutterRenderChart::PaintBar(const ScopedCanvas& canvas, flutter::Paint& pa
         LOGE("data paint region width:%{public}lf height:%{public}lf", paintRect.Width(), paintRect.Height());
         return;
     }
-    const int32_t barSize = barGroupData.size();
+    const int32_t barSize = static_cast<int32_t>(barGroupData.size());
     for (int32_t barIndex = 0; barIndex < barSize; ++barIndex) {
         const auto point = barGroupData[barIndex].GetPointInfo();
         // If the actual number of data exceeds Tick, the extra part will not be laid out
diff --git a/frameworks/core/components/chart/rosen_render_chart.cpp b/frameworks/core/components/chart/rosen_render_chart.cpp
index 55d27258..5c754e63 100644
--- a/frameworks/core/components/chart/rosen_render_chart.cpp
+++ b/frameworks/core/components/chart/rosen_render_chart.cpp
@@ -240,7 +240,7 @@ void RosenRenderChart::PaintDatas(RenderContext& context, const Rect& paintRect)
         paint.setAntiAlias(true);
         paint.setStyle(SkPaint::Style::kStrokeAndFill_Style);
 
-        const int32_t barGroupNumber = mainCharts_.size();
+        const int32_t barGroupNumber = static_cast<int32_t>(mainCharts_.size());
         auto barsAreaNumber = horizontal_.tickNumber;
         for (int32_t barGroupIndex = 0; barGroupIndex < barGroupNumber; ++barGroupIndex) {
             auto barGroup = mainCharts_[barGroupIndex];
@@ -254,7 +254,7 @@ void RosenRenderChart::UpdateLineGradientPoint(
     const std::vector<LineInfo>& pointInfo, const MainChart& line, const Rect& paintRect)
 {
     if (line.GetHeadPointIndex() > 0 && line.GetErasePointNumber() > 0) {
-        startGradientIndex_ = line.GetHeadPointIndex() + line.GetErasePointNumber() - 1;
+        startGradientIndex_ = static_cast<size_t>(line.GetHeadPointIndex() + line.GetErasePointNumber() - 1);
         endGradientIndex_ = startGradientIndex_ + 1;
         if (static_cast<size_t>(startGradientIndex_) >= pointInfo.size()) {
             startGradientIndex_ = pointInfo.size() - 1;
@@ -495,7 +495,7 @@ void RosenRenderChart::AddCubicPath(SkPath& path, const Rect& paintRect,
     // and control point B = [(Xi+1 - (Xi+2 - Xi) / 4), (Yi+1 - (Yi+2 - Yi) / 4)]
     if (index > 0 && index < line.size()) {
         Offset prev = ConvertDataToPosition(
-            paintRect, line[(index - 2 < startIndex_ || index < 2) ? startIndex_ : index - 2].GetPointInfo());
+            paintRect, line[(index < 2 || index - 2 < startIndex_) ? startIndex_ : index - 2].GetPointInfo());
         Offset cur = ConvertDataToPosition(paintRect, line[index - 1].GetPointInfo());
         Offset next = ConvertDataToPosition(paintRect, line[index].GetPointInfo());
         Offset nextNext = ConvertDataToPosition(paintRect,
@@ -585,7 +585,7 @@ void RosenRenderChart::PaintBar(SkCanvas* canvas, SkPaint& paint,
         LOGE("data paint region width:%{public}lf height:%{public}lf", paintRect.Width(), paintRect.Height());
         return;
     }
-    const int32_t barSize = barGroupData.size();
+    const int32_t barSize = static_cast<int32_t>(barGroupData.size());
     for (int32_t barIndex = 0; barIndex < barSize; ++barIndex) {
         const auto point = barGroupData[barIndex].GetPointInfo();
         // If the actual number of data exceeds Tick, the extra part will not be laid out
diff --git a/frameworks/core/components/checkable/render_switch.cpp b/frameworks/core/components/checkable/render_switch.cpp
index d6ba18ef..3d751fff 100644
--- a/frameworks/core/components/checkable/render_switch.cpp
+++ b/frameworks/core/components/checkable/render_switch.cpp
@@ -296,7 +296,7 @@ void RenderSwitch::OnDrag(const Offset& updatePoint)
     bool moveRight = pointPositionDelta_ > 0.0;
     bool needChangeStatus = ((needReverse_ == oldChecked_) && moveRight && effectiveMove) ||
                             ((needReverse_ != oldChecked_) && !moveRight && effectiveMove);
-    checked_ = needChangeStatus ^ oldChecked_;
+    checked_ = needChangeStatus != oldChecked_;     // reverse [checked_] status if [needChangeStatus] is true
 
     // let A = [needReverse_], B = [oldChecked_], C = [moveRight], D = [excessiveMove],
     // and [A'] represents the reverse of [A].
diff --git a/frameworks/core/components/custom_paint/flutter_render_custom_paint.cpp b/frameworks/core/components/custom_paint/flutter_render_custom_paint.cpp
index 12efc419..2da53603 100644
--- a/frameworks/core/components/custom_paint/flutter_render_custom_paint.cpp
+++ b/frameworks/core/components/custom_paint/flutter_render_custom_paint.cpp
@@ -73,7 +73,7 @@ std::string GetMimeType(const std::string& args)
     } else {
         // Convert to lowercase string.
         for (size_t i = 0; i < values[1].size(); ++i) {
-            values[1][i] = tolower(values[1][i]);
+            values[1][i] = static_cast<uint8_t>(tolower(values[1][i]));
         }
         return values[1];
     }
@@ -405,9 +405,9 @@ void FlutterRenderCustomPaint::DrawBitmapMesh(const RefPtr<OffscreenCanvas>& off
         skBitmap.allocPixels(imageInfo);
         skBitmap.setPixels(data);
 
-        int32_t size = mesh.size();
+        uint32_t size = mesh.size();
         float verts[size];
-        for (int32_t i = 0; i < size; i++) {
+        for (uint32_t i = 0; i < size; i++) {
             verts[i] = mesh[i];
         }
 
@@ -1174,10 +1174,10 @@ void FlutterRenderCustomPaint::UpdatePaintShader(const Offset& offset, SkPaint&
         SkDoubleToScalar(gradient.GetEndOffset().GetY() + offset.GetY()));
     SkPoint pts[2] = { beginPoint, endPoint };
     auto gradientColors = gradient.GetColors();
-    int32_t colorsSize = gradientColors.size();
+    uint32_t colorsSize = gradientColors.size();
     SkColor colors[gradientColors.size()];
     float pos[gradientColors.size()];
-    for (auto i = 0; i < colorsSize; ++i) {
+    for (uint32_t i = 0; i < colorsSize; ++i) {
         const auto& gradientColor = gradientColors[i];
         colors[i] = gradientColor.GetColor().GetValue();
         pos[i] = gradientColor.GetDimension().Value();
diff --git a/frameworks/core/components/custom_paint/flutter_render_offscreen_canvas.cpp b/frameworks/core/components/custom_paint/flutter_render_offscreen_canvas.cpp
index 889dc06d..a76e3ae6 100644
--- a/frameworks/core/components/custom_paint/flutter_render_offscreen_canvas.cpp
+++ b/frameworks/core/components/custom_paint/flutter_render_offscreen_canvas.cpp
@@ -68,7 +68,7 @@ std::string GetMimeType(const std::string& args)
 {
     std::string type = args;
     for (size_t i = 0; i < type.size(); ++i) {
-        type[i] = tolower(type[i]);
+        type[i] = static_cast<uint8_t>(tolower(type[i]));
     }
     return type;
 }
@@ -464,10 +464,10 @@ void FlutterRenderOffscreenCanvas::UpdatePaintShader(SkPaint& paint, const Gradi
         SkDoubleToScalar(gradient.GetEndOffset().GetY()));
     SkPoint pts[2] = { beginPoint, endPoint };
     auto gradientColors = gradient.GetColors();
-    int32_t colorsSize = gradientColors.size();
+    uint32_t colorsSize = gradientColors.size();
     SkColor colors[gradientColors.size()];
     float pos[gradientColors.size()];
-    for (auto i = 0; i < colorsSize; ++i) {
+    for (uint32_t i = 0; i < colorsSize; ++i) {
         const auto& gradientColor = gradientColors[i];
         colors[i] = gradientColor.GetColor().GetValue();
         pos[i] = gradientColor.GetDimension().Value();
@@ -1459,7 +1459,7 @@ bool FlutterRenderOffscreenCanvas::GetFilterType(std::string& filterType, std::s
 bool FlutterRenderOffscreenCanvas::IsPercentStr(std::string& percent)
 {
     if (percent.find("%") != std::string::npos) {
-        int index = percent.find("%");
+        size_t index = percent.find("%");
         percent = percent.substr(0, index);
         return true;
     }
@@ -1668,20 +1668,20 @@ void FlutterRenderOffscreenCanvas::SetHueRotateFilter(const std::string& filterP
     std::string percent = filterParam;
     float degree = 0.0f;
     if (percent.find("deg") != std::string::npos) {
-        int index = percent.find("deg");
+        size_t index = percent.find("deg");
         percent = percent.substr(0, index);
         std::istringstream iss(percent);
         iss >> degree;
     }
     if (percent.find("turn") != std::string::npos) {
-        int index = percent.find("turn");
+        size_t index = percent.find("turn");
         percent = percent.substr(0, index);
         std::istringstream iss(percent);
         iss >> degree;
         degree = degree * 360;
     }
     if (percent.find("rad") != std::string::npos) {
-        int index = percent.find("rad");
+        size_t index = percent.find("rad");
         percent = percent.substr(0, index);
         std::istringstream iss(percent);
         iss >> degree;
diff --git a/frameworks/core/components/custom_paint/rosen_render_custom_paint.cpp b/frameworks/core/components/custom_paint/rosen_render_custom_paint.cpp
index 18c9f981..68bc1272 100644
--- a/frameworks/core/components/custom_paint/rosen_render_custom_paint.cpp
+++ b/frameworks/core/components/custom_paint/rosen_render_custom_paint.cpp
@@ -74,7 +74,7 @@ std::string GetMimeType(const std::string& args)
     } else {
         // Convert to lowercase string.
         for (size_t i = 0; i < values[1].size(); ++i) {
-            values[1][i] = tolower(values[1][i]);
+            values[1][i] = static_cast<uint8_t>(tolower(values[1][i]));
         }
         return values[1];
     }
@@ -1043,10 +1043,10 @@ void RosenRenderCustomPaint::UpdatePaintShader(const Offset& offset, SkPaint& pa
         SkDoubleToScalar(gradient.GetEndOffset().GetY() + offset.GetY()));
     SkPoint pts[2] = { beginPoint, endPoint };
     auto gradientColors = gradient.GetColors();
-    int32_t colorsSize = gradientColors.size();
+    uint32_t colorsSize = gradientColors.size();
     SkColor colors[gradientColors.size()];
     float pos[gradientColors.size()];
-    for (auto i = 0; i < colorsSize; ++i) {
+    for (uint32_t i = 0; i < colorsSize; ++i) {
         const auto& gradientColor = gradientColors[i];
         colors[i] = gradientColor.GetColor().GetValue();
         pos[i] = gradientColor.GetDimension().Value();
@@ -1529,9 +1529,9 @@ void RosenRenderCustomPaint::DrawBitmapMesh(const RefPtr<OffscreenCanvas>& offsc
             SkColorType::kBGRA_8888_SkColorType, SkAlphaType::kOpaque_SkAlphaType);
         skBitmap.allocPixels(imageInfo);
         skBitmap.setPixels(data);
-        int32_t size = mesh.size();
+        uint32_t size = mesh.size();
         float verts[size];
-        for (int32_t i = 0; i < size; i++) {
+        for (uint32_t i = 0; i < size; i++) {
             verts[i] = mesh[i];
         }
         Mesh(skBitmap, column, row, verts, 0, nullptr);
diff --git a/frameworks/core/components/custom_paint/rosen_render_offscreen_canvas.cpp b/frameworks/core/components/custom_paint/rosen_render_offscreen_canvas.cpp
index d952e127..1ce84667 100644
--- a/frameworks/core/components/custom_paint/rosen_render_offscreen_canvas.cpp
+++ b/frameworks/core/components/custom_paint/rosen_render_offscreen_canvas.cpp
@@ -67,7 +67,7 @@ std::string GetMimeType(const std::string& args)
 {
     std::string type = args;
     for (size_t i = 0; i < type.size(); ++i) {
-        type[i] = tolower(type[i]);
+        type[i] = static_cast<uint8_t>(tolower(type[i]));
     }
     return type;
 }
@@ -450,10 +450,10 @@ void RosenRenderOffscreenCanvas::UpdatePaintShader(SkPaint& paint, const Gradien
         SkDoubleToScalar(gradient.GetEndOffset().GetY()));
     SkPoint pts[2] = { beginPoint, endPoint };
     auto gradientColors = gradient.GetColors();
-    int32_t colorsSize = gradientColors.size();
+    uint32_t colorsSize = gradientColors.size();
     SkColor colors[gradientColors.size()];
     float pos[gradientColors.size()];
-    for (auto i = 0; i < colorsSize; ++i) {
+    for (uint32_t i = 0; i < colorsSize; ++i) {
         const auto& gradientColor = gradientColors[i];
         colors[i] = gradientColor.GetColor().GetValue();
         pos[i] = gradientColor.GetDimension().Value();
@@ -1445,7 +1445,7 @@ bool RosenRenderOffscreenCanvas::GetFilterType(std::string& filterType, std::str
 bool RosenRenderOffscreenCanvas::IsPercentStr(std::string& percent)
 {
     if (percent.find("%") != std::string::npos) {
-        int index = percent.find("%");
+        size_t index = percent.find("%");
         percent = percent.substr(0, index);
         return true;
     }
@@ -1654,20 +1654,20 @@ void RosenRenderOffscreenCanvas::SetHueRotateFilter(const std::string& filterPar
     std::string percent = filterParam;
     float degree = 0.0f;
     if (percent.find("deg") != std::string::npos) {
-        int index = percent.find("deg");
+        size_t index = percent.find("deg");
         percent = percent.substr(0, index);
         std::istringstream iss(percent);
         iss >> degree;
     }
     if (percent.find("turn") != std::string::npos) {
-        int index = percent.find("turn");
+        size_t index = percent.find("turn");
         percent = percent.substr(0, index);
         std::istringstream iss(percent);
         iss >> degree;
         degree = degree * 360;
     }
     if (percent.find("rad") != std::string::npos) {
-        int index = percent.find("rad");
+        size_t index = percent.find("rad");
         percent = percent.substr(0, index);
         std::istringstream iss(percent);
         iss >> degree;
diff --git a/frameworks/core/components/data_panel/flutter_render_data_panel.cpp b/frameworks/core/components/data_panel/flutter_render_data_panel.cpp
index 8d09b6d6..a4579a30 100644
--- a/frameworks/core/components/data_panel/flutter_render_data_panel.cpp
+++ b/frameworks/core/components/data_panel/flutter_render_data_panel.cpp
@@ -594,9 +594,9 @@ void FlutterRenderPercentageDataPanel::PaintLinearProgress(RenderContext& contex
     bool isFull = false;
     auto valueSum = 0.0;
     PaintBackground(context, offset, totalWidth, height);
-    for (int i = 0; i < segment.size(); i++) {
+    for (uint32_t i = 0; i < segment.size(); i++) {
         if (i == 0 && segment[0].GetValue() == 0.0) {
-            for (int j = 0; j < segment.size(); j++) {
+            for (uint32_t j = 0; j < segment.size(); j++) {
                 if (segment[j].GetValue() != 0.0 && i == 0) {
                     i = j;
                 }
@@ -665,7 +665,7 @@ void FlutterRenderPercentageDataPanel::Paint(RenderContext& context, const Offse
         PaintRainbowFilterMask(canvas, factor * animationPercent_, segments, arcData);
     }
     totalValue = totalValue * proportions;
-    for (int i = segments.size() - 1; i >= 0; i--) {
+    for (int i = static_cast<int32_t>(segments.size()) - 1; i >= 0; i--) {
         const auto& segment = segments[i];
         arcData.startColor = segment.GetStartColor();
         arcData.endColor = segment.GetEndColor();
diff --git a/frameworks/core/components/data_panel/rosen_render_data_panel.cpp b/frameworks/core/components/data_panel/rosen_render_data_panel.cpp
index 9a971c30..1b99acd6 100644
--- a/frameworks/core/components/data_panel/rosen_render_data_panel.cpp
+++ b/frameworks/core/components/data_panel/rosen_render_data_panel.cpp
@@ -571,7 +571,7 @@ void RosenRenderPercentageDataPanel::PaintLinearProgress(RenderContext& context,
     auto height = GetLayoutSize().Height();
     auto widthSegment = offset.GetX();
     PaintBackground(context, offset, totalWidth, height);
-    for (int i = 0; i < segment.size(); i++) {
+    for (uint32_t i = 0; i < segment.size(); i++) {
         auto segmentWidth = segment[i].GetValue();
         if (segmentWidth == 0.0) {
             continue;
@@ -625,7 +625,7 @@ void RosenRenderPercentageDataPanel::Paint(RenderContext& context, const Offset&
         PaintRainbowFilterMask(canvas, factor * animationPercent_, segments, arcData);
     }
     totalValue = totalValue * proportions;
-    for (int i = segments.size() - 1; i >= 0; i--) {
+    for (uint32_t i = segments.size() - 1; i >= 0; i--) {
         const auto& segment = segments[i];
         arcData.startColor = segment.GetStartColor();
         arcData.endColor = segment.GetEndColor();
diff --git a/frameworks/core/components/dialog/dialog_theme.h b/frameworks/core/components/dialog/dialog_theme.h
index 72ade658..fc68bc93 100644
--- a/frameworks/core/components/dialog/dialog_theme.h
+++ b/frameworks/core/components/dialog/dialog_theme.h
@@ -149,7 +149,7 @@ public:
             theme->contentAdjustPadding_ = Edge(defaultPadding, 0.0_vp, defaultPadding, 0.0_vp);
             theme->actionsPadding_ = Edge(defaultPadding, actionsTopPadding, defaultPadding, actionsTopPadding);
             theme->buttonHeight_ = dialogPattern->GetAttr<Dimension>(DIALOG_BUTTON_HEIGHT, 0.0_vp);
-            theme->titleMaxLines_ = dialogPattern->GetAttr<int32_t>(DIALOG_TITLE_MAX_LINES, 2);
+            theme->titleMaxLines_ = static_cast<uint32_t>(dialogPattern->GetAttr<int32_t>(DIALOG_TITLE_MAX_LINES, 2));
             theme->titleTextStyle_.SetFontSize(
                 themeStyle->GetAttr<Dimension>(THEME_ATTR_TEXT_SIZE_HEAD_LINE8, 20.0_vp));
             theme->titleMinFontSize_ = themeStyle->GetAttr<Dimension>(THEME_ATTR_TEXT_SIZE_HEAD_LINE8, 20.0_vp);
diff --git a/frameworks/core/components/flex/render_flex.cpp b/frameworks/core/components/flex/render_flex.cpp
index 38d618e5..c8e5b4c2 100644
--- a/frameworks/core/components/flex/render_flex.cpp
+++ b/frameworks/core/components/flex/render_flex.cpp
@@ -137,7 +137,7 @@ void RenderFlex::OnPaintFinish()
         return;
     }
     auto collectionInfo = refPtr->GetCollectionInfo();
-    collectionInfo.rows = GetChildren().size();
+    collectionInfo.rows = static_cast<int32_t>(GetChildren().size());
     collectionInfo.columns = 1;
     refPtr->SetCollectionInfo(collectionInfo);
     Rect itemRect;
diff --git a/frameworks/core/components/focus_animation/flutter_render_focus_animation.cpp b/frameworks/core/components/focus_animation/flutter_render_focus_animation.cpp
index 219d5a6c..e7574090 100644
--- a/frameworks/core/components/focus_animation/flutter_render_focus_animation.cpp
+++ b/frameworks/core/components/focus_animation/flutter_render_focus_animation.cpp
@@ -124,11 +124,11 @@ void FlutterRenderFocusAnimation::PaintGlow(SkCanvas* skCanvas, SkPaint& paint,
     uint8_t blue = pathColor_.GetBlue() & 0xFF;
     uint8_t mAlpha = 0;
     if (progress_ > RIGHT_ANGLE) {
-        mAlpha = static_cast<int32_t>(
+        mAlpha = static_cast<uint8_t>(
             MAX_TRANSPARENCY - (progress_ - RIGHT_ANGLE) * ((MAX_TRANSPARENCY - MIN_TRANSPARENCY) / RIGHT_ANGLE));
     } else {
         mAlpha =
-            static_cast<int32_t>(MIN_TRANSPARENCY + progress_ * ((MAX_TRANSPARENCY - MIN_TRANSPARENCY) / RIGHT_ANGLE));
+            static_cast<uint8_t>(MIN_TRANSPARENCY + progress_ * ((MAX_TRANSPARENCY - MIN_TRANSPARENCY) / RIGHT_ANGLE));
     }
     SkColor boundaryColor = SkColorSetARGB(mAlpha, red, green, blue);
     SkColor glowColor = SkColorSetARGB(MAX_ALPHA, red, green, blue);
diff --git a/frameworks/core/components/focus_animation/rosen_render_focus_animation.cpp b/frameworks/core/components/focus_animation/rosen_render_focus_animation.cpp
index f05fad1b..aa1dd499 100644
--- a/frameworks/core/components/focus_animation/rosen_render_focus_animation.cpp
+++ b/frameworks/core/components/focus_animation/rosen_render_focus_animation.cpp
@@ -114,11 +114,11 @@ void RosenRenderFocusAnimation::PaintGlow(SkCanvas* skCanvas, SkPaint& paint, in
     uint8_t blue = pathColor_.GetBlue() & 0xFF;
     uint8_t mAlpha = 0;
     if (progress_ > RIGHT_ANGLE) {
-        mAlpha = static_cast<int32_t>(
+        mAlpha = static_cast<uint8_t>(
             MAX_TRANSPARENCY - (progress_ - RIGHT_ANGLE) * ((MAX_TRANSPARENCY - MIN_TRANSPARENCY) / RIGHT_ANGLE));
     } else {
         mAlpha =
-            static_cast<int32_t>(MIN_TRANSPARENCY + progress_ * ((MAX_TRANSPARENCY - MIN_TRANSPARENCY) / RIGHT_ANGLE));
+            static_cast<uint8_t>(MIN_TRANSPARENCY + progress_ * ((MAX_TRANSPARENCY - MIN_TRANSPARENCY) / RIGHT_ANGLE));
     }
     SkColor boundaryColor = SkColorSetARGB(mAlpha, red, green, blue);
     SkColor glowColor = SkColorSetARGB(MAX_ALPHA, red, green, blue);
diff --git a/frameworks/core/components/form/sub_container.cpp b/frameworks/core/components/form/sub_container.cpp
index f0f611d9..e74592ad 100644
--- a/frameworks/core/components/form/sub_container.cpp
+++ b/frameworks/core/components/form/sub_container.cpp
@@ -289,7 +289,7 @@ void SubContainer::GetNamesOfSharedImage(std::vector<std::string>& picNameArray)
         sharedImageManager = pipelineCtx->GetSharedImageManager();
     }
     auto nameSize = picNameArray.size();
-    for (int i = 0; i < nameSize; i++) {
+    for (uint32_t i = 0; i < nameSize; i++) {
         // get name of picture
         auto name = picNameArray[i];
         sharedImageManager->AddPictureNamesToReloadMap(std::move(name));
@@ -320,7 +320,7 @@ void SubContainer::UpdateSharedImage(
     // now it can be assured that all three arrays are of the same size
 
     std::string picNameCopy;
-    for (int i = 0; i < nameArraySize; i++) {
+    for (uint32_t i = 0; i < nameArraySize; i++) {
         // get name of picture
         auto picName = picNameArray[i];
         // save a copy of picName and ReleaseStringUTFChars immediately to avoid memory leak
diff --git a/frameworks/core/components/grid/render_grid.cpp b/frameworks/core/components/grid/render_grid.cpp
index 3eb4b709..546dbb70 100644
--- a/frameworks/core/components/grid/render_grid.cpp
+++ b/frameworks/core/components/grid/render_grid.cpp
@@ -331,7 +331,7 @@ Offset RenderGrid::GetChildOffset(const RefPtr<RenderNode>& child) const
 void RenderGrid::JumpTo(int32_t index)
 {
     LOGD("Jump to index: %{public}d.", index);
-    int32_t size = GetChildren().size();
+    int32_t size = static_cast<int32_t>(GetChildren().size());
     if (index < 0 || index >= size) {
         LOGW("Invalid index: %{public}d.", index);
         return;
@@ -349,7 +349,7 @@ void RenderGrid::JumpTo(int32_t index)
 void RenderGrid::AnimateTo(int32_t index, float duration, const RefPtr<Curve>& curve)
 {
     LOGD("Animate to index: %{public}d.", index);
-    int32_t size = GetChildren().size();
+    int32_t size = static_cast<int32_t>(GetChildren().size());
     if (index < 0 || index >= size) {
         LOGW("Invalid index: %{public}d.", index);
         return;
@@ -497,7 +497,7 @@ void RenderGrid::MoveChildToViewPort(int32_t index)
 
 RefPtr<RenderNode> RenderGrid::GetChildByIndex(int32_t index) const
 {
-    int32_t size = GetChildren().size();
+    int32_t size = static_cast<int32_t>(GetChildren().size());
     if (index < 0 || index >= size) {
         return nullptr;
     }
@@ -646,7 +646,7 @@ void RenderGrid::BuildPositionRelations(int32_t gridPos, int32_t columnSpan, int
     gridPositions_[gridPos] = index;
     indexPositions_[index] = gridPos;
     RelationMap relation;
-    int32_t size = GetChildren().size();
+    int32_t size = static_cast<int32_t>(GetChildren().size());
     relation[KeyDirection::UP] = -1;
     relation[KeyDirection::DOWN] = -1;
     relation[KeyDirection::LEFT] = gridPos % columnCount_ > 0 ? index - 1 : -1;
diff --git a/frameworks/core/components/image/image_animator_element.cpp b/frameworks/core/components/image/image_animator_element.cpp
index cfc525bf..dfde571e 100644
--- a/frameworks/core/components/image/image_animator_element.cpp
+++ b/frameworks/core/components/image/image_animator_element.cpp
@@ -90,7 +90,7 @@ void Ace::ImageAnimatorElement::Update()
 
 void ImageAnimatorElement::PerformBuild()
 {
-    int32_t size = images_.size();
+    int32_t size = static_cast<int32_t>(images_.size());
     if (size <= 0) {
         LOGE("image size is less than 0.");
         return;
@@ -117,7 +117,7 @@ void ImageAnimatorElement::PerformBuild()
     animator_->ClearInterpolators();
     animator_->AddInterpolator(pictureAnimation_);
     animator_->RemoveRepeatListener(repeatCallbackId_);
-    repeatCallbackId_ = animator_->AddRepeatListener([weak = WeakClaim(this)]() {
+    repeatCallbackId_ = static_cast<int64_t>(animator_->AddRepeatListener([weak = WeakClaim(this)]() {
         auto imageAnimator = weak.Upgrade();
         if (!imageAnimator) {
             return;
@@ -127,7 +127,7 @@ void ImageAnimatorElement::PerformBuild()
         } else {
             imageAnimator->animator_->SetDuration(imageAnimator->duration_);
         }
-    });
+    }));
     animator_->RemoveStopListener(stopCallbackId_);
     stopCallbackId_ = animator_->AddStopListener([weak = WeakClaim(this)]() {
         auto imageAnimator = weak.Upgrade();
@@ -154,9 +154,9 @@ void ImageAnimatorElement::PerformBuild()
 
 RefPtr<Component> ImageAnimatorElement::BuildChild()
 {
-    int32_t size = images_.size();
-    if (size <= 0) {
-        LOGE("image size is less than 0.");
+    uint32_t size = images_.size();
+    if (size == 0) {
+        LOGE("image size is 0.");
         return nullptr;
     }
     auto boxComponent = AceType::MakeRefPtr<BoxComponent>();
@@ -186,7 +186,7 @@ void ImageAnimatorElement::UpdatePreLoadImages(const RefPtr<BoxComponent>& box)
         LOGE("boxComponent is null.");
         return;
     }
-    int32_t size = images_.size();
+    int32_t size = static_cast<int32_t>(images_.size());
     for (int32_t idx = 0; (idx < preDecode_) && (idx < size); idx++) {
         auto imageComponent = DynamicCast<ImageComponent>(box->GetChild());
         if (!imageComponent) {
@@ -210,7 +210,7 @@ void ImageAnimatorElement::CreatePictureAnimation(int32_t size)
     pictureAnimation_->ClearListeners();
     pictureAnimation_->ClearPictures();
     if (durationTotal_ > 0) {
-        int32_t filterImagesSize = filterImages_.size();
+        int32_t filterImagesSize = static_cast<int32_t>(filterImages_.size());
         for (int32_t index = 0; index < filterImagesSize; ++index) {
             int32_t imageDuration = filterImages_[index].duration;
             pictureAnimation_->AddPicture((float)imageDuration / durationTotal_, index);
diff --git a/frameworks/core/components/indexer/indexer_component.cpp b/frameworks/core/components/indexer/indexer_component.cpp
index 06971a37..f403c765 100644
--- a/frameworks/core/components/indexer/indexer_component.cpp
+++ b/frameworks/core/components/indexer/indexer_component.cpp
@@ -232,8 +232,8 @@ void IndexerComponent::BuildCollapseItem()
 
 void IndexerComponent::BuildIndexerItems()
 {
-    int32_t length = labelLocal_.size();
-    if (length <= 0) {
+    uint32_t length = labelLocal_.size();
+    if (length == 0) {
         LOGE("[indexer] invalid section string");
         return;
     }
@@ -256,7 +256,7 @@ void IndexerComponent::BuildIndexerItems()
     }
     // add indexer items except '#'
     isFirstItem_ = true;
-    for (int32_t i = 0; i < length; ++i) {
+    for (uint32_t i = 0; i < length; ++i) {
         std::u16string strItem = labelLocal_[i];
         if (!userDefineList_ && strItem == INDEXER_STR_SHARP) {
             continue;
@@ -267,8 +267,8 @@ void IndexerComponent::BuildIndexerItems()
     if (circleMode_ && multiLanguageEnabled_) {
         isFirstItem_ = true;
         // add default alphabet indexer
-        int32_t count = defaultAlphaLocal_.size();
-        for (int32_t i = 0; i < count; ++i) {
+        uint32_t count = defaultAlphaLocal_.size();
+        for (uint32_t i = 0; i < count; ++i) {
             std::u16string strItem = defaultAlphaLocal_[i];
             BuildTextItem(strItem, strItem, 1);
         }
@@ -335,7 +335,7 @@ int32_t IndexerComponent::AddItemIndexKey(const std::string& indexKey, const std
                 AddSectionHead(item, headStyle);
             }
             // add index key
-            itemIndex = item->AddIndexKey(indexKey);
+            itemIndex = static_cast<int32_t>(item->AddIndexKey(indexKey));
             break;
         }
     }
@@ -372,7 +372,7 @@ int32_t IndexerComponent::AddItemToSharp(const std::string& indexKey, const std:
         AddSectionHead(itemPtr, headStyle);
     }
     // add index key
-    int32_t itemIndex = itemPtr->AddIndexKey(indexKey);
+    int32_t itemIndex = static_cast<int32_t>(itemPtr->AddIndexKey(indexKey));
     // update section head index
     UpdateSectionIndex();
 
@@ -581,7 +581,7 @@ void IndexerComponent::UpdateSectionIndex()
         }
         item->SetSectionIndex(sectionIndex);
         if (item->GetKeyCount() != 0) {
-            sectionIndex = sectionIndex + item->GetKeyCount() + 1;
+            sectionIndex = sectionIndex + static_cast<int32_t>(item->GetKeyCount()) + 1;
             if (GetCircleMode()) {
                 --sectionIndex;
             }
diff --git a/frameworks/core/components/indexer/indexer_item_component.cpp b/frameworks/core/components/indexer/indexer_item_component.cpp
index 0579d07d..433b0095 100644
--- a/frameworks/core/components/indexer/indexer_item_component.cpp
+++ b/frameworks/core/components/indexer/indexer_item_component.cpp
@@ -134,7 +134,7 @@ uint32_t IndexerItemComponent::AddIndexKey(const std::string& indexKey)
     }
 
     keyCount_++;
-    itemIndex += sectionIndex_;
+    itemIndex += static_cast<uint32_t>(sectionIndex_);
     if (circleMode_) {
         itemIndex--;
     }
@@ -178,7 +178,7 @@ uint32_t IndexerItemComponent::AddIndexKeyForSharp(const std::string& indexKey)
     }
 
     keyCount_++;
-    itemIndex += sectionIndex_;
+    itemIndex += static_cast<uint32_t>(sectionIndex_);
     if (circleMode_) {
         itemIndex--;
     }
diff --git a/frameworks/core/components/list/list_component.cpp b/frameworks/core/components/list/list_component.cpp
index 7ce8ba81..92e89129 100644
--- a/frameworks/core/components/list/list_component.cpp
+++ b/frameworks/core/components/list/list_component.cpp
@@ -126,7 +126,7 @@ void ListComponent::InsertChild(int32_t position, const RefPtr<Component>& child
         return;
     }
 
-    uint32_t current = 0;
+    int32_t current = 0;
     auto it = children.begin();
     while (it != children.end()) {
         auto listItemComponent = ListItemComponent::GetListItem(*it);
@@ -134,7 +134,7 @@ void ListComponent::InsertChild(int32_t position, const RefPtr<Component>& child
             --current;
         }
 
-        if (current == pos) {
+        if (current == static_cast<int32_t>(pos)) {
             break;
         }
 
diff --git a/frameworks/core/components/list/list_element.cpp b/frameworks/core/components/list/list_element.cpp
index cfe9b21a..f581a81f 100644
--- a/frameworks/core/components/list/list_element.cpp
+++ b/frameworks/core/components/list/list_element.cpp
@@ -160,7 +160,7 @@ bool ListElement::BuildListDataFromChild(int32_t index)
         return false;
     }
     // now just for prebuild more items.
-    preBuildCount_ = itemComponents_.size();
+    preBuildCount_ = static_cast<int32_t>(itemComponents_.size());
     if (index >= preBuildCount_ - cachedCount_ && requestItemAsync_) {
         RetrieveListData(0, preBuildCount_ + cachedCount_);
     }
@@ -787,7 +787,7 @@ void ListElement::GetRefreshItems(bool& rebuild, int32_t& tailIndex)
     if (isJsCard_) {
         rebuild = true;
     }
-    maxCount_ = itemComponents_.size();
+    maxCount_ = static_cast<int32_t>(itemComponents_.size());
 }
 
 void ListElement::RebuildElements(int32_t tailIndex)
diff --git a/frameworks/core/components/list/list_item_group_element.cpp b/frameworks/core/components/list/list_item_group_element.cpp
index e38c4c11..23958b01 100644
--- a/frameworks/core/components/list/list_item_group_element.cpp
+++ b/frameworks/core/components/list/list_item_group_element.cpp
@@ -139,7 +139,7 @@ bool ListItemGroupElement::RequestNextFocus(bool vertical, bool reverse, const R
             --nextFocusIndex;
         }
     } else {
-        int32_t maxSize = children_.size();
+        int32_t maxSize = static_cast<int32_t>(children_.size());
         while (nextFocusIndex < maxSize) {
             ret = TraverseFocusNode(nextFocusIndex, false);
             if (ret) {
@@ -155,7 +155,7 @@ bool ListItemGroupElement::RequestNextFocus(bool vertical, bool reverse, const R
 int32_t ListItemGroupElement::GetNextFocusIndex(bool vertical, bool reverse)
 {
     int32_t nextFocusIndex = renderItemGroup_->GetNextFocusIndex(GetItemGroupFocusIndex(), vertical, reverse);
-    int32_t childrenSize = children_.size();
+    int32_t childrenSize = static_cast<int32_t>(children_.size());
     if (nextFocusIndex < 0 || nextFocusIndex >= childrenSize) {
         return -1;
     } else {
diff --git a/frameworks/core/components/navigation_bar/navigation_bar_component.cpp b/frameworks/core/components/navigation_bar/navigation_bar_component.cpp
index 8e3b43cd..533297ff 100644
--- a/frameworks/core/components/navigation_bar/navigation_bar_component.cpp
+++ b/frameworks/core/components/navigation_bar/navigation_bar_component.cpp
@@ -143,7 +143,7 @@ void TitleBarMenuBuilder::MoveMenuItemsToBar(const RefPtr<ComponentGroup>& conta
 
     bool needAddPadding = false;
     for (const auto& menuItem : allMenuItems_) {
-        hasRoom &= ((showInBarSize < mostShowInBarSize - 1) ||
+        hasRoom = hasRoom && ((showInBarSize < mostShowInBarSize - 1) ||
                     (showInBarSize == mostShowInBarSize - 1 && allMenuItems_.size() == mostShowInBarSize) ||
                     (showInBarSize < mostShowInBarSize && SystemProperties::GetDeviceType() == DeviceType::TV));
         if (menuItem->GetShowInNavigationBar() == ShowInNavigationBar::SHOW && hasRoom) {
diff --git a/frameworks/core/components/navigation_bar/navigation_bar_component_v2.cpp b/frameworks/core/components/navigation_bar/navigation_bar_component_v2.cpp
index bdd1f803..0dc7ca67 100644
--- a/frameworks/core/components/navigation_bar/navigation_bar_component_v2.cpp
+++ b/frameworks/core/components/navigation_bar/navigation_bar_component_v2.cpp
@@ -200,7 +200,8 @@ bool NavigationBarBuilder::AddMenu(const RefPtr<ComponentGroup>& container)
     }
     uint32_t showInBarSize = 0;
     bool hasRoom = true;
-    uint32_t mostShowInBarSize = menuCount_ > 0 ? menuCount_ : theme_->GetMostMenuItemCountInBar();
+    uint32_t mostShowInBarSize =
+        menuCount_ > 0 ? static_cast<uint32_t>(menuCount_) : theme_->GetMostMenuItemCountInBar();
     bool needAddPadding = false;
     menu_ = AceType::MakeRefPtr<MenuComponent>("", "navigationMenu");
     auto ctx = context_.Upgrade();
diff --git a/frameworks/core/components/picker/flutter_render_picker_base.cpp b/frameworks/core/components/picker/flutter_render_picker_base.cpp
index 848001ab..21033bf2 100644
--- a/frameworks/core/components/picker/flutter_render_picker_base.cpp
+++ b/frameworks/core/components/picker/flutter_render_picker_base.cpp
@@ -44,7 +44,8 @@ Rect FlutterRenderPickerBase::GetOptionsRect(const Offset& offset, const RefPtr<
     // Get pickerColumn's relative position.
     auto parent = pickerColumn->GetParent().Upgrade();
     uint32_t depth = 0;
-    while ((parent) && (AceType::RawPtr(parent) != this) && (++depth < SEARCH_MAX_DEPTH)) {
+    while ((parent) && (AceType::RawPtr(parent) != this) && (depth < SEARCH_MAX_DEPTH)) {
+        depth++;
         top += parent->GetPosition().GetY();
         left += parent->GetPosition().GetX();
         parent = parent->GetParent().Upgrade();
diff --git a/frameworks/core/components/picker/picker_date_component.h b/frameworks/core/components/picker/picker_date_component.h
index a0330e4f..e7d90189 100644
--- a/frameworks/core/components/picker/picker_date_component.h
+++ b/frameworks/core/components/picker/picker_date_component.h
@@ -23,16 +23,16 @@ namespace OHOS::Ace {
 
 class LunarCalculator {
 public:
-    static int GetLunarLeapMonth(int lunarYear)
+    static uint32_t GetLunarLeapMonth(uint32_t lunarYear)
     {
         if ((lunarYear - YEAR_START) >= LUNAR_INFO_SIZE) {
             return 0;
         }
-        int leapMonth = LUNAR_INFO[lunarYear - YEAR_START] & 0xf; // use 0xf to get leap month info
+        uint32_t leapMonth = LUNAR_INFO[lunarYear - YEAR_START] & 0xf; // use 0xf to get leap month info
         return leapMonth == 0xf ? 0 : leapMonth;
     }
 
-    static int GetLunarLeapDays(int lunarYear)
+    static uint32_t GetLunarLeapDays(uint32_t lunarYear)
     {
         if ((lunarYear - YEAR_START + 1) >= LUNAR_INFO_SIZE) {
             return 0;
@@ -41,12 +41,12 @@ public:
                                                 : 0; // big month 30 days other 29
     }
 
-    static int GetLunarYearDays(int lunarYear)
+    static uint32_t GetLunarYearDays(uint32_t lunarYear)
     {
         if ((lunarYear - YEAR_START) >= LUNAR_INFO_SIZE) {
             return 0;
         }
-        int totalDays = 348;                          // lunar year has (12 * 29 =) 348 days at least
+        uint32_t totalDays = 348;                          // lunar year has (12 * 29 =) 348 days at least
         for (uint32_t i = 0x8000; i > 0x8; i >>= 1) { // get month info from bit of LUNAR_INFO
             totalDays += ((LUNAR_INFO[lunarYear - YEAR_START] & i) != 0) ? 1 : 0;
         }
@@ -54,7 +54,7 @@ public:
         return totalDays + GetLunarLeapDays(lunarYear);
     }
 
-    static int GetLunarMonthDays(int lunarYear, int lunarMonth)
+    static uint32_t GetLunarMonthDays(uint32_t lunarYear, uint32_t lunarMonth)
     {
         if ((lunarYear - YEAR_START) >= LUNAR_INFO_SIZE) {
             return 0;
@@ -65,7 +65,7 @@ public:
     }
 
 private:
-    static constexpr int YEAR_START = 1897; // start year reference with LUNAR_INFO
+    static constexpr uint32_t YEAR_START = 1897; // start year reference with LUNAR_INFO
     static constexpr int32_t LUNAR_INFO_SIZE = 207;
     static const uint16_t LUNAR_INFO[];
 };
diff --git a/frameworks/core/components/picker/render_picker_base.cpp b/frameworks/core/components/picker/render_picker_base.cpp
index 07793ecd..7e80c389 100644
--- a/frameworks/core/components/picker/render_picker_base.cpp
+++ b/frameworks/core/components/picker/render_picker_base.cpp
@@ -345,7 +345,7 @@ void RenderPickerBase::LayoutColumns()
 
     double totalWidth = columnParent_->GetLayoutSize().Width();
     double totalHeight = columnParent_->GetLayoutSize().Height();
-    uint32_t ratioCount = std::accumulate(columns_.begin(), columns_.end(), 0,
+    int32_t ratioCount = std::accumulate(columns_.begin(), columns_.end(), 0,
         [](uint32_t sum, const RefPtr<RenderPickerColumn>& column) { return sum += column->GetWidthRatio(); });
 
     bool divideEvenly = SystemProperties::GetDeviceType() != DeviceType::PHONE || ratioCount == 0;
diff --git a/frameworks/core/components/picker/rosen_render_picker_base.cpp b/frameworks/core/components/picker/rosen_render_picker_base.cpp
index 08efa4a2..ef5bd887 100644
--- a/frameworks/core/components/picker/rosen_render_picker_base.cpp
+++ b/frameworks/core/components/picker/rosen_render_picker_base.cpp
@@ -34,7 +34,8 @@ Rect RosenRenderPickerBase::GetOptionsRect(const Offset& offset, const RefPtr<Re
     // Get pickerColumn's relative position.
     auto parent = pickerColumn->GetParent().Upgrade();
     uint32_t depth = 0;
-    while ((parent) && (AceType::RawPtr(parent) != this) && (++depth < SEARCH_MAX_DEPTH)) {
+    while ((parent) && (AceType::RawPtr(parent) != this) && (depth < SEARCH_MAX_DEPTH)) {
+        depth++;
         top += parent->GetPosition().GetY();
         left += parent->GetPosition().GetX();
         parent = parent->GetParent().Upgrade();
diff --git a/frameworks/core/components/qrcode/flutter_render_qrcode.cpp b/frameworks/core/components/qrcode/flutter_render_qrcode.cpp
index 0dc0df15..ad4f2041 100644
--- a/frameworks/core/components/qrcode/flutter_render_qrcode.cpp
+++ b/frameworks/core/components/qrcode/flutter_render_qrcode.cpp
@@ -50,7 +50,7 @@ void FlutterRenderQrcode::DrawQRCode(
     }
     if (qrcode_->GetType() == QrcodeType::CIRCLE) {
         SkRect clipRect = { topLeft.GetX(), topLeft.GetY(), topLeft.GetX() + size, topLeft.GetY() + size };
-        auto clipLayer = SkRRect::MakeRectXY(clipRect, size / 2, size / 2);
+        auto clipLayer = SkRRect::MakeRectXY(clipRect, size / 2.0, size / 2.0);
         canvas->canvas()->clipRRect(clipLayer, SkClipOp::kIntersect, true);
     }
     canvas->canvas()->drawBitmap(ProcessQrcodeData(size, qrCode), topLeft.GetX(), topLeft.GetY());
@@ -82,7 +82,7 @@ SkBitmap FlutterRenderQrcode::ProcessQrcodeData(int32_t width, const qrcodegen::
     }
     skBitmap.allocPixels(imageInfo);
     void* rawData = skBitmap.getPixels();
-    int32_t* data = reinterpret_cast<int32_t*>(rawData);
+    uint32_t* data = reinterpret_cast<uint32_t*>(rawData);
     int32_t blockWidth = width / qrCode.getSize();
     for (int32_t i = 0; i < width; i++) {
         for (int32_t j = 0; j < width; j++) {
diff --git a/frameworks/core/components/qrcode/rosen_render_qrcode.cpp b/frameworks/core/components/qrcode/rosen_render_qrcode.cpp
index 70de2584..2b518509 100644
--- a/frameworks/core/components/qrcode/rosen_render_qrcode.cpp
+++ b/frameworks/core/components/qrcode/rosen_render_qrcode.cpp
@@ -82,7 +82,7 @@ SkBitmap RosenRenderQrcode::ProcessQrcodeData(int32_t width, const qrcodegen::Qr
     }
     skBitmap.allocPixels(imageInfo);
     void* rawData = skBitmap.getPixels();
-    int32_t* data = reinterpret_cast<int32_t*>(rawData);
+    uint32_t* data = reinterpret_cast<uint32_t*>(rawData);
     int32_t blockWidth = width / qrCode.getSize();
     for (int32_t i = 0; i < width; i++) {
         for (int32_t j = 0; j < width; j++) {
diff --git a/frameworks/core/components/refresh/render_refresh.cpp b/frameworks/core/components/refresh/render_refresh.cpp
index f96c6062..c57483b4 100644
--- a/frameworks/core/components/refresh/render_refresh.cpp
+++ b/frameworks/core/components/refresh/render_refresh.cpp
@@ -541,11 +541,11 @@ std::string RenderRefresh::GetFormatDateTime()
 
     // This is for i18n date time
     DateTime dateTime;
-    dateTime.year = local->tm_year + BASE_YEAR;
-    dateTime.month = local->tm_mon;
-    dateTime.day = local->tm_mday;
-    dateTime.hour = local->tm_hour;
-    dateTime.minute = local->tm_min;
+    dateTime.year = static_cast<uint32_t>(local->tm_year + BASE_YEAR);
+    dateTime.month = static_cast<uint32_t>(local->tm_mon);
+    dateTime.day = static_cast<uint32_t>(local->tm_mday);
+    dateTime.hour = static_cast<uint32_t>(local->tm_hour);
+    dateTime.minute = static_cast<uint32_t>(local->tm_min);
     std::string time = Localization::GetInstance()->FormatDateTime(dateTime, LAST_UPDATE_FORMAT);
     LOGD("Last update refresh time is %{public}s", time.c_str());
     return time;
diff --git a/frameworks/core/components/root/render_root.h b/frameworks/core/components/root/render_root.h
index 463e7c38..0fe2f524 100644
--- a/frameworks/core/components/root/render_root.h
+++ b/frameworks/core/components/root/render_root.h
@@ -86,7 +86,7 @@ protected:
     bool isBgColorInit_ = false;
     bool isReset_ = false;
     RefPtr<Animator> controller_;
-    bool isContextMenu_;
+    bool isContextMenu_ = false;
 };
 
 } // namespace OHOS::Ace
diff --git a/frameworks/core/components/scroll/render_multi_child_scroll.cpp b/frameworks/core/components/scroll/render_multi_child_scroll.cpp
index 17834872..06508858 100644
--- a/frameworks/core/components/scroll/render_multi_child_scroll.cpp
+++ b/frameworks/core/components/scroll/render_multi_child_scroll.cpp
@@ -345,7 +345,7 @@ bool RenderMultiChildScroll::ReachMaxCount() const
 
 void RenderMultiChildScroll::OnPredictLayout(int64_t deadline)
 {
-    int32_t childrenSize = GetChildren().size();
+    int32_t childrenSize = static_cast<uint32_t>(GetChildren().size());
     if (currentIndex_ < 0 || currentIndex_ >= childrenSize || childrenSize == 0) {
         LOGE("invalid current index: %{public}d, size is: %{public}d", currentIndex_, childrenSize);
         return;
@@ -423,7 +423,7 @@ bool RenderMultiChildScroll::LayoutChild(
 
 void RenderMultiChildScroll::LayoutChild()
 {
-    int32_t childrenSize = GetChildren().size();
+    int32_t childrenSize = static_cast<int32_t>(GetChildren().size());
     if (currentIndex_ < 0 || currentIndex_ >= childrenSize) {
         LOGE("invalid current index: %{public}d", currentIndex_);
         return;
diff --git a/frameworks/core/components/search/render_search.cpp b/frameworks/core/components/search/render_search.cpp
index 78f6e6d6..2a3cd75d 100644
--- a/frameworks/core/components/search/render_search.cpp
+++ b/frameworks/core/components/search/render_search.cpp
@@ -525,8 +525,8 @@ bool RenderSearch::MouseHoverTest(const Point& parentLocalPoint)
     }
 
     bool hoverInSearch = !searchTextRect_.IsInRegion(parentLocalPoint);
-    if (showCloseIcon_) {
-        hoverInSearch &= !closeIconHotZoneRect_.IsInRegion(parentLocalPoint);
+    if (showCloseIcon_ && hoverInSearch) {
+        hoverInSearch = !closeIconHotZoneRect_.IsInRegion(parentLocalPoint);
     }
     if (hoverInSearch) {
         hoverOrPressRender_ = SearchNodeType::NONE;
diff --git a/frameworks/core/components/shape/flutter_render_shape_container.cpp b/frameworks/core/components/shape/flutter_render_shape_container.cpp
index 3ffe5a52..e8162150 100644
--- a/frameworks/core/components/shape/flutter_render_shape_container.cpp
+++ b/frameworks/core/components/shape/flutter_render_shape_container.cpp
@@ -122,9 +122,9 @@ void FlutterRenderShapeContainer::BitmapMesh(RenderContext& context, const Offse
         skCanvas_->drawBitmap(skOffBitmap_, 0, 0);
         return;
     }
-    int32_t size = mesh_.size();
+    uint32_t size = mesh_.size();
     float verts[size];
-    for (int32_t i = 0; i < size; i++) {
+    for (uint32_t i = 0; i < size; i++) {
         verts[i] = (float)mesh_[i];
     }
     DrawBitmapMesh(skOffBitmap_, column_, row_, verts, 0, nullptr);
diff --git a/frameworks/core/components/shape/rosen_render_shape_container.cpp b/frameworks/core/components/shape/rosen_render_shape_container.cpp
index d5707c03..e33c255a 100644
--- a/frameworks/core/components/shape/rosen_render_shape_container.cpp
+++ b/frameworks/core/components/shape/rosen_render_shape_container.cpp
@@ -136,9 +136,9 @@ void RosenRenderShapeContainer::BitmapMesh(RenderContext& context, const Offset&
         skCanvas_->drawBitmap(skOffBitmap_, 0, 0);
         return;
     }
-    int32_t size = mesh_.size();
+    uint32_t size = mesh_.size();
     float verts[size];
-    for (int32_t i = 0; i < size; i++) {
+    for (uint32_t i = 0; i < size; i++) {
         verts[i] = (float)mesh_[i];
     }
     DrawBitmapMesh(skOffBitmap_, column_, row_, verts, 0, nullptr);
diff --git a/frameworks/core/components/stepper/render_stepper.cpp b/frameworks/core/components/stepper/render_stepper.cpp
index 7e69af55..538a1a7d 100644
--- a/frameworks/core/components/stepper/render_stepper.cpp
+++ b/frameworks/core/components/stepper/render_stepper.cpp
@@ -55,7 +55,7 @@ void RenderStepper::Update(const RefPtr<Component>& component)
     }
     childrenArray_.clear();
     needReverse_ = (stepperComponent_->GetTextDirection() == TextDirection::RTL);
-    totalItemCount_ = stepperComponent_->GetChildren().size();
+    totalItemCount_ = static_cast<int32_t>(stepperComponent_->GetChildren().size());
 
     // currentIndex_ should be updated only for the first time
     if (currentIndex_ == -1) {
@@ -452,7 +452,7 @@ void RenderStepper::PerformLayout()
         innerLayout.SetMaxSize(Size(maxSize.Width(), maxSize.Height() - controlPanelHeight_));
         double maxWidth = minSize.Width();
         double maxHeight = minSize.Height();
-        int32_t childrenSize = childrenArray_.size();
+        int32_t childrenSize = static_cast<int32_t>(childrenArray_.size());
         for (int32_t i = 0; i < childrenSize; i++) {
             const auto& childItem = childrenArray_[i];
             childItem->Layout(innerLayout);
@@ -636,7 +636,7 @@ void RenderStepper::FireBackEvent(int32_t currentIndex, int32_t& pendingIndex)
 
 void RenderStepper::FireItemEvent(int32_t index, bool isAppear) const
 {
-    int32_t childrenCount = childrenArray_.size();
+    int32_t childrenCount = static_cast<int32_t>(childrenArray_.size());
     if (index < 0 || index >= childrenCount) {
         LOGW("index is error, index = %{public}d", index);
         return;
@@ -758,7 +758,7 @@ void RenderStepper::InitChildrenArr()
 
 void RenderStepper::UpdateItemPosition(double offset, int32_t index)
 {
-    int32_t childrenCount = childrenArray_.size();
+    int32_t childrenCount = static_cast<int32_t>(childrenArray_.size());
     if (index < 0 || index >= childrenCount) {
         LOGE("index is error, index = %{public}d", index);
         return;
diff --git a/frameworks/core/components/stepper/stepper_theme.h b/frameworks/core/components/stepper/stepper_theme.h
index 3703adf6..ff9f0e3b 100644
--- a/frameworks/core/components/stepper/stepper_theme.h
+++ b/frameworks/core/components/stepper/stepper_theme.h
@@ -53,7 +53,7 @@ public:
             families.emplace_back("sans-serif");
             theme->textStyle_.SetFontFamilies(families);
             theme->minFontSize_ = themeConstants->GetDimension(THEME_STEPPER_TEXT_FONTSIZE_MIN);
-            auto maxlines = themeConstants->GetInt(THEME_STEPPER_TEXT_MAX_LINES);
+            uint32_t maxlines = static_cast<uint32_t>(themeConstants->GetInt(THEME_STEPPER_TEXT_MAX_LINES));
             theme->textMaxLines_ = maxlines < 0 ? theme->textMaxLines_ : maxlines;
             theme->defaultPaddingStart_ = themeConstants->GetDimension(THEME_STEPPER_DEFAULT_PADDING_START);
             theme->defaultPaddingEnd_ = themeConstants->GetDimension(THEME_STEPPER_DEFAULT_PADDING_END);
diff --git a/frameworks/core/components/svg/flutter_render_svg_path.cpp b/frameworks/core/components/svg/flutter_render_svg_path.cpp
index 63ebdf55..11dc25fe 100644
--- a/frameworks/core/components/svg/flutter_render_svg_path.cpp
+++ b/frameworks/core/components/svg/flutter_render_svg_path.cpp
@@ -126,7 +126,7 @@ void FlutterRenderSvgPath::GetPath(SkPath& out)
         SkPath path;
         SkPath ending;
         int32_t firstPart = (int)weight_;
-        int32_t pathsSize = paths_.size();
+        int32_t pathsSize = static_cast<int32_t>(paths_.size());
         bool ret = false;
         if (firstPart < 0 || firstPart > (pathsSize - 1)) {
             ret = false;
diff --git a/frameworks/core/components/svg/flutter_render_svg_polygon.cpp b/frameworks/core/components/svg/flutter_render_svg_polygon.cpp
index 094c156b..aa01b15b 100644
--- a/frameworks/core/components/svg/flutter_render_svg_polygon.cpp
+++ b/frameworks/core/components/svg/flutter_render_svg_polygon.cpp
@@ -174,7 +174,7 @@ bool FlutterRenderSvgPolygon::GetPath(SkPath* out)
         return GetPathWithoutAnimate(out);
     } else {
         int32_t firstPart = (int)weight_;
-        int32_t pathsSize = pointsVector_.size();
+        int32_t pathsSize = static_cast<int32_t>(pointsVector_.size());
         if (firstPart < 0 || firstPart > (pathsSize - 1)) {
             return false;
         }
diff --git a/frameworks/core/components/svg/render_svg_base.cpp b/frameworks/core/components/svg/render_svg_base.cpp
index a7ee3386..902c6605 100644
--- a/frameworks/core/components/svg/render_svg_base.cpp
+++ b/frameworks/core/components/svg/render_svg_base.cpp
@@ -360,8 +360,8 @@ void RenderSvgBase::PrepareTransformFrameAnimation(const RefPtr<SvgAnimate>& svg
 
     // set indices instead of frames
     std::vector<std::string> indices;
-    int32_t size = svgAnimate->GetValues().size();
-    for (int32_t i = 0; i < size; i++) {
+    uint32_t size = svgAnimate->GetValues().size();
+    for (uint32_t i = 0; i < size; i++) {
         indices.emplace_back(std::to_string(i));
     }
     auto instance = AceType::MakeRefPtr<SvgAnimate>();
@@ -531,8 +531,8 @@ void RenderSvgBase::PrepareWeightAnimate(const RefPtr<SvgAnimate>& svgAnimate, s
         valueVector = svgAnimate->GetValues();
         valueVector.insert(valueVector.begin(), originalValue);
         std::vector<std::string> newValues;
-        int32_t size = svgAnimate->GetValues().size();
-        for (int32_t i = 0; i < size; i++) {
+        uint32_t size = svgAnimate->GetValues().size();
+        for (uint32_t i = 0; i < size; i++) {
             newValues.emplace_back(std::to_string(i));
         }
         svgAnimate->SetValues(newValues);
diff --git a/frameworks/core/components/svg/rosen_render_svg_path.cpp b/frameworks/core/components/svg/rosen_render_svg_path.cpp
index 748bed3b..50fb1807 100644
--- a/frameworks/core/components/svg/rosen_render_svg_path.cpp
+++ b/frameworks/core/components/svg/rosen_render_svg_path.cpp
@@ -105,7 +105,7 @@ void RosenRenderSvgPath::GetPath(SkPath& out)
         SkPath path;
         SkPath ending;
         int32_t firstPart = (int)weight_;
-        int32_t pathsSize = paths_.size();
+        int32_t pathsSize = static_cast<int32_t>(paths_.size());
         bool ret = false;
         if (firstPart < 0 || firstPart > (pathsSize - 1)) {
             ret = false;
diff --git a/frameworks/core/components/svg/rosen_render_svg_polygon.cpp b/frameworks/core/components/svg/rosen_render_svg_polygon.cpp
index 45eaf45e..f9f569f0 100644
--- a/frameworks/core/components/svg/rosen_render_svg_polygon.cpp
+++ b/frameworks/core/components/svg/rosen_render_svg_polygon.cpp
@@ -153,7 +153,7 @@ bool RosenRenderSvgPolygon::GetPath(SkPath* out)
         return GetPathWithoutAnimate(out);
     } else {
         int32_t firstPart = (int)weight_;
-        int32_t pathsSize = pointsVector_.size();
+        int32_t pathsSize = static_cast<int32_t>(pointsVector_.size());
         if (firstPart < 0 || firstPart > (pathsSize - 1)) {
             return false;
         }
diff --git a/frameworks/core/components/swiper/render_swiper.cpp b/frameworks/core/components/swiper/render_swiper.cpp
index dc7be8ca..889d120a 100644
--- a/frameworks/core/components/swiper/render_swiper.cpp
+++ b/frameworks/core/components/swiper/render_swiper.cpp
@@ -60,6 +60,8 @@ constexpr double SPRING_STIFF = 700.0;
 constexpr double SPRING_DAMP = 22.0;
 constexpr double SPRING_DAMP_INC = 5.0;
 constexpr double DRAG_CALC_STRETCH_STEP = 0.01;
+constexpr int32_t DRAG_CALC_STRETCH_STEP_INT = 1;   // 100*DRAG_CALC_STRETCH_STEP
+constexpr int32_t DRAG_CALC_STRETCH_STEP_MAX = 100; // 100*DRAG_CALC_STRETCH_STEP_INT
 constexpr double DRAG_OFFSET_START_DP = 4.0;
 constexpr double DRAG_OFFSET_SWITCH_DP = 14.0;
 constexpr double DRAG_STRETCH_LONGEST_DP = 80.0;
@@ -171,12 +173,12 @@ void RenderSwiper::Update(const RefPtr<Component>& component)
 
     // Get item count of swiper
     const auto& children = swiper->GetChildren();
-    itemCount_ = children.size();
+    itemCount_ = static_cast<int32_t>(children.size());
     for (const auto& child : children) {
         auto multiChild = AceType::DynamicCast<MultiChild>(child);
         if (multiChild) {
             --itemCount_;
-            itemCount_ += multiChild->Count();
+            itemCount_ += static_cast<int32_t>(multiChild->Count());
         }
     }
 
@@ -2325,12 +2327,13 @@ void RenderSwiper::CalMaxStretch()
     if (focusStretchMaxTime_ == DRAG_OFFSET_MIN) {
         double stretch = DRAG_OFFSET_MIN;
         double maxStretch = DRAG_OFFSET_MIN;
-        const double step = DRAG_CALC_STRETCH_STEP;
-        for (double i = step; i <= 1.0; i += step) {
-            stretch = INDICATOR_FOCUS_HEAD->Move(i) - INDICATOR_FOCUS_TAIL->Move(i);
+        const int32_t step = DRAG_CALC_STRETCH_STEP_INT;
+        for (int32_t i = step; i <= DRAG_CALC_STRETCH_STEP_MAX; i += step) {
+            double actualStep = i * DRAG_CALC_STRETCH_STEP / static_cast<double>(DRAG_CALC_STRETCH_STEP_INT);
+            stretch = INDICATOR_FOCUS_HEAD->Move(actualStep) - INDICATOR_FOCUS_TAIL->Move(actualStep);
             if (stretch > maxStretch) {
                 maxStretch = stretch;
-                focusStretchMaxTime_ = i;
+                focusStretchMaxTime_ = actualStep;
             }
         }
         LOGD("CalMaxStretch(%{public}lf), time(%{public}lf)", maxStretch, focusStretchMaxTime_);
diff --git a/frameworks/core/components/tab_bar/render_tab_bar.cpp b/frameworks/core/components/tab_bar/render_tab_bar.cpp
index 3de125a7..f42f29eb 100644
--- a/frameworks/core/components/tab_bar/render_tab_bar.cpp
+++ b/frameworks/core/components/tab_bar/render_tab_bar.cpp
@@ -41,7 +41,7 @@ void RenderTabBar::Update(const RefPtr<Component>& component)
         EventReport::SendRenderException(RenderExcepType::RENDER_COMPONENT_ERR);
         return;
     }
-    tabsSize_ = tabBar->GetChildren().size();
+    tabsSize_ = static_cast<int32_t>(tabBar->GetChildren().size());
     auto tabController = tabBar->GetController();
     if (tabController) {
         auto index = tabController->GetIndex();
@@ -85,12 +85,12 @@ void RenderTabBar::PerformLayout()
         if (children.size() <= 1) {
             return;
         }
-        tabsSize_ = children.size() - 1;
+        tabsSize_ = static_cast<int32_t>(children.size()) - 1;
     } else {
         if (children.empty()) {
             return;
         }
-        tabsSize_ = children.size();
+        tabsSize_ = static_cast<int32_t>(children.size());
     }
 
     index_ = std::clamp(index_, 0, std::max(0, tabsSize_ - 1));
@@ -707,7 +707,7 @@ void RenderTabBar::InitScrollableOffset(TabBarMode mode)
 
 RefPtr<RenderNode> RenderTabBar::GetChildByIndex(int32_t index) const
 {
-    int32_t size = GetChildren().size();
+    int32_t size = static_cast<int32_t>(GetChildren().size());
     if (index < 0 || index >= size) {
         return nullptr;
     }
diff --git a/frameworks/core/components/tab_bar/render_tab_content.cpp b/frameworks/core/components/tab_bar/render_tab_content.cpp
index 93739a6f..7e3dfa0a 100644
--- a/frameworks/core/components/tab_bar/render_tab_content.cpp
+++ b/frameworks/core/components/tab_bar/render_tab_content.cpp
@@ -36,7 +36,7 @@ void RenderTabContent::Update(const RefPtr<Component>& component)
         return;
     }
     auto tabController = tabContent->GetController();
-    int32_t count = tabContent->GetChildren().size();
+    int32_t count = static_cast<int32_t>(tabContent->GetChildren().size());
     int32_t tabIndex = tabController ? tabController->GetIndex() : 0;
     if (count != contentCount_ && tabIndex >= count && tabController) {
         tabController->ValidateIndex(count - 1);
diff --git a/frameworks/core/components/tab_bar/tab_bar_component.h b/frameworks/core/components/tab_bar/tab_bar_component.h
index 62d49feb..7f2cf16e 100644
--- a/frameworks/core/components/tab_bar/tab_bar_component.h
+++ b/frameworks/core/components/tab_bar/tab_bar_component.h
@@ -62,7 +62,7 @@ public:
     void SetIndex(int32_t index)
     {
         if (controller_) {
-            int32_t size = GetChildren().size();
+            int32_t size = static_cast<int32_t>(GetChildren().size());
             if (index < 0 || index >= size) {
                 index = 0;
             }
diff --git a/frameworks/core/components/tab_bar/tab_bar_element.cpp b/frameworks/core/components/tab_bar/tab_bar_element.cpp
index 19c8694a..d23d3074 100644
--- a/frameworks/core/components/tab_bar/tab_bar_element.cpp
+++ b/frameworks/core/components/tab_bar/tab_bar_element.cpp
@@ -144,7 +144,7 @@ void TabBarElement::OnFocus()
     }
     if (controller_) {
         int32_t index = controller_->GetIndex();
-        int32_t size = focusNodes_.size();
+        int32_t size = static_cast<int32_t>(focusNodes_.size());
         if (size > 0) {
             size--;
         }
diff --git a/frameworks/core/components/text/text_utils.h b/frameworks/core/components/text/text_utils.h
index 910ff0e4..5e364cbb 100644
--- a/frameworks/core/components/text/text_utils.h
+++ b/frameworks/core/components/text/text_utils.h
@@ -34,7 +34,7 @@ enum class CharType {
 
 inline CharType GetCharType(const std::wstring& value, int32_t position)
 {
-    if (position < 0 || position >= value.size()) {
+    if (position < 0 || position >= static_cast<int32_t>(value.size())) {
         return CharType::NONE;
     }
 
@@ -52,7 +52,7 @@ inline TextSelection GetRangeOfSameType(const std::string& str, int32_t position
 {
     TextSelection selection = TextSelection(position, position);
     auto wstring = StringUtils::ToWstring(str);
-    int32_t length = wstring.size();
+    int32_t length = static_cast<int32_t>(wstring.size());
     CharType type = GetCharType(wstring, position);
     if (type != CharType::NUMBER && type != CharType::LETTER) {
         selection.extentOffset = position + 1;
diff --git a/frameworks/core/components/text_clock/render_text_clock.cpp b/frameworks/core/components/text_clock/render_text_clock.cpp
index cb64867f..a1165433 100644
--- a/frameworks/core/components/text_clock/render_text_clock.cpp
+++ b/frameworks/core/components/text_clock/render_text_clock.cpp
@@ -123,13 +123,13 @@ DateTime RenderTextClock::GetDateTime() const
     }
     // This is for i18n date time
     DateTime dateTime;
-    dateTime.year = local->tm_year + BASE_YEAR;
-    dateTime.month = local->tm_mon;
-    dateTime.day = local->tm_mday;
+    dateTime.year = static_cast<uint32_t>(local->tm_year + BASE_YEAR);
+    dateTime.month = static_cast<uint32_t>(local->tm_mon);
+    dateTime.day = static_cast<uint32_t>(local->tm_mday);
     TimeOfNow timeOfNow = GetTimeOfNow(hoursWest_);
     dateTime.hour = timeOfNow.hour24_;
     dateTime.minute = timeOfNow.minute_;
-    dateTime.second = timeOfNow.second_;
+    dateTime.second = static_cast<uint32_t>(timeOfNow.second_);
     return dateTime;
 }
 
diff --git a/frameworks/core/components/text_field/render_text_field.cpp b/frameworks/core/components/text_field/render_text_field.cpp
index d2f6eefa..2e28d088 100644
--- a/frameworks/core/components/text_field/render_text_field.cpp
+++ b/frameworks/core/components/text_field/render_text_field.cpp
@@ -972,7 +972,7 @@ void RenderTextField::SetEditingValue(TextEditingValue&& newValue, bool needFire
         } else {
             std::regex rw(inputFilter_);
             if (regex_match(newValue.text.c_str(), rw)) {
-                inputCallBackStrSize_ = newValue.text.length();
+                inputCallBackStrSize_ = static_cast<int32_t>(newValue.text.length());
                 controller_->SetValue(newValue, needFireChangeEvent);
             } else {
                 inputCallBackStr_ = newValue.text.substr(inputCallBackStrSize_);
@@ -1894,7 +1894,7 @@ Offset RenderTextField::GetPositionForExtend(int32_t extend, bool isSingleHandle
         extend = 0;
     }
     if (static_cast<size_t>(extend) > GetEditingValue().GetWideText().length()) {
-        extend = GetEditingValue().GetWideText().length();
+        extend = static_cast<int32_t>(GetEditingValue().GetWideText().length());
     }
     return GetHandleOffset(extend);
 }
diff --git a/frameworks/core/components/texttimer/render_texttimer.h b/frameworks/core/components/texttimer/render_texttimer.h
index eac5d5e3..df6cac16 100644
--- a/frameworks/core/components/texttimer/render_texttimer.h
+++ b/frameworks/core/components/texttimer/render_texttimer.h
@@ -57,8 +57,8 @@ public:
 
 protected:
     uint64_t elapsedTime_ = 0; // millisecond.
-    double inputCount_;
-    bool isCountDown_;
+    double inputCount_ = 0.0;
+    bool isCountDown_ = false;
     std::string format_;
     std::function<void(uint64_t, uint64_t)> onTimer_;
 
diff --git a/frameworks/core/components/tool_bar/render_tool_bar.cpp b/frameworks/core/components/tool_bar/render_tool_bar.cpp
index 478ded50..46c5853d 100644
--- a/frameworks/core/components/tool_bar/render_tool_bar.cpp
+++ b/frameworks/core/components/tool_bar/render_tool_bar.cpp
@@ -29,7 +29,7 @@ void RenderToolBar::Update(const RefPtr<Component>& component)
         return;
     }
 
-    toolBarsSize_ = toolBar->GetChildren().size();
+    toolBarsSize_ = static_cast<int32_t>(toolBar->GetChildren().size());
 }
 
 void RenderToolBar::PerformLayout()
diff --git a/frameworks/core/components/track/flutter_render_arc_track.cpp b/frameworks/core/components/track/flutter_render_arc_track.cpp
index bc7a9a19..9bb86734 100644
--- a/frameworks/core/components/track/flutter_render_arc_track.cpp
+++ b/frameworks/core/components/track/flutter_render_arc_track.cpp
@@ -170,12 +170,12 @@ void FlutterRenderArcTrack::Paint(RenderContext& context, const Offset& offset)
         double highLightStart = 0.0;
         size_t highLightIndex = 0;
         double ratio = leftToRight_ ? GetTotalRatio() : 1 - GetTotalRatio();
-        for (int32_t index = colors_.size() - 1; index >= 0; --index) {
+        for (int32_t index = static_cast<int32_t>(colors_.size()) - 1; index >= 0; --index) {
             data.color = colors_[index];
             data.color.ChangeAlpha(UNSELECT_ALPHA);
             currentStart += weights_[index];
             if (ShouldHighLight(totalWeight - currentStart, weights_[index], ratio * totalWeight)) {
-                highLightIndex = index;
+                highLightIndex = static_cast<size_t>(index);
                 highLightStart = totalWeight - currentStart;
             }
             data.startDegree = paintData_.startDegree + (1 - currentStart / totalWeight) * paintData_.sweepDegree;
diff --git a/frameworks/core/components/track/flutter_render_circular_track.cpp b/frameworks/core/components/track/flutter_render_circular_track.cpp
index 4040ddd6..96bc51a8 100644
--- a/frameworks/core/components/track/flutter_render_circular_track.cpp
+++ b/frameworks/core/components/track/flutter_render_circular_track.cpp
@@ -83,7 +83,9 @@ void FlutterRenderCircularTrack::Paint(RenderContext& context, const Offset& off
     }
     canvas->save();
     // change the start point to the top.
-    canvas.GetSkCanvas()->rotate(-90.0, data.center.GetX(), data.center.GetY());
+    if (canvas.GetSkCanvas()) {
+        canvas.GetSkCanvas()->rotate(-90.0, data.center.GetX(), data.center.GetY());
+    }
     // draw background
     data.color = GetBackgroundColor();
     DrawArc(context, data);
diff --git a/frameworks/core/components/track/rosen_render_arc_track.cpp b/frameworks/core/components/track/rosen_render_arc_track.cpp
index 4abeaffd..1d45b5f7 100644
--- a/frameworks/core/components/track/rosen_render_arc_track.cpp
+++ b/frameworks/core/components/track/rosen_render_arc_track.cpp
@@ -173,7 +173,7 @@ void RosenRenderArcTrack::Paint(RenderContext& context, const Offset& offset)
             data.color.ChangeAlpha(UNSELECT_ALPHA);
             currentStart += weights_[index];
             if (ShouldHighLight(totalWeight - currentStart, weights_[index], ratio * totalWeight)) {
-                highLightIndex = index;
+                highLightIndex = static_cast<size_t>(index);
                 highLightStart = totalWeight - currentStart;
             }
             data.startDegree = paintData_.startDegree + (1 - currentStart / totalWeight) * paintData_.sweepDegree;
diff --git a/frameworks/core/components/wrap/render_wrap.cpp b/frameworks/core/components/wrap/render_wrap.cpp
index 91206fa5..4891e365 100644
--- a/frameworks/core/components/wrap/render_wrap.cpp
+++ b/frameworks/core/components/wrap/render_wrap.cpp
@@ -245,7 +245,7 @@ Size RenderWrap::GetLeftSize(double crossLength, double mainLeftLength, double c
 
 void RenderWrap::LayoutWholeWrap()
 {
-    int32_t contentNum = contentList_.size();
+    int32_t contentNum = static_cast<int32_t>(contentList_.size());
     if (contentNum == 0) {
         LOGW("no content in wrap");
         return;
@@ -273,20 +273,21 @@ void RenderWrap::LayoutWholeWrap()
         }
         case WrapAlignment::SPACE_BETWEEN: {
             startPosition = Offset(0.0, 0.0);
-            double crossSpace = contentNum > 1 ? (crossLengthLimit_ - totalCrossLength_) / (contentNum - 1) : 0.0;
+            double crossSpace =
+                contentNum > 1 ? (crossLengthLimit_ - totalCrossLength_) / static_cast<double>(contentNum - 1) : 0.0;
             betweenPosition = isHorizontal ? Offset(0.0, crossSpace) : Offset(crossSpace, 0.0);
             break;
         }
         case WrapAlignment::SPACE_EVENLY: {
             double leftSpace = crossLengthLimit_ - totalCrossLength_;
-            double crossSpace = leftSpace / (contentNum + 1);
+            double crossSpace = leftSpace / static_cast<double>(contentNum + 1);
             startPosition = isHorizontal ? Offset(0.0, crossSpace) : Offset(crossSpace, 0.0);
             betweenPosition = isHorizontal ? Offset(0.0, crossSpace) : Offset(crossSpace, 0.0);
             break;
         }
         case WrapAlignment::SPACE_AROUND: {
             double leftSpace = crossLengthLimit_ - totalCrossLength_;
-            double crossSpace = leftSpace / contentNum;
+            double crossSpace = leftSpace / static_cast<double>(contentNum);
             startPosition = isHorizontal ? Offset(0.0, crossSpace / 2) : Offset(crossSpace / 2, 0.0);
             betweenPosition = isHorizontal ? Offset(0.0, crossSpace) : Offset(crossSpace, 0.0);
             break;
diff --git a/frameworks/core/components_v2/grid/grid_element.cpp b/frameworks/core/components_v2/grid/grid_element.cpp
index f7dd5c11..bee852a1 100644
--- a/frameworks/core/components_v2/grid/grid_element.cpp
+++ b/frameworks/core/components_v2/grid/grid_element.cpp
@@ -141,7 +141,7 @@ bool GridElement::RequestNextFocus(bool vertical, bool reverse, const Rect& rect
     bool ret = false;
     while (!ret) {
         int32_t focusIndex = grid->RequestNextFocus(vertical, reverse);
-        int32_t size = GetChildrenList().size();
+        int32_t size = static_cast<int32_t>(GetChildrenList().size());
         if (focusIndex < 0 || focusIndex >= size) {
             return false;
         }
diff --git a/frameworks/core/components_v2/grid/render_grid_scroll.cpp b/frameworks/core/components_v2/grid/render_grid_scroll.cpp
index 3fa38eac..7de2ef2d 100644
--- a/frameworks/core/components_v2/grid/render_grid_scroll.cpp
+++ b/frameworks/core/components_v2/grid/render_grid_scroll.cpp
@@ -1043,7 +1043,7 @@ void RenderGridScroll::CalculateWholeSize(double drawLength)
         if (currentItemCount != 0) {
             mainScrollExtent_ = 0.0;
             // calculate the whole size
-            mainScrollExtent_ = totalCount_ / currentItemCount * drawLength;
+            mainScrollExtent_ = static_cast<double>(totalCount_) / static_cast<double>(currentItemCount) * drawLength;
             estimateHeight_ = mainScrollExtent_;
             totalCountFlag_ = false;
         }
diff --git a/frameworks/core/components_v2/indexer/render_indexer.cpp b/frameworks/core/components_v2/indexer/render_indexer.cpp
index f1bee9bf..c1bcc3e6 100644
--- a/frameworks/core/components_v2/indexer/render_indexer.cpp
+++ b/frameworks/core/components_v2/indexer/render_indexer.cpp
@@ -146,7 +146,7 @@ void RenderIndexer::PerformLayout()
 
 void RenderIndexer::UpdateItems()
 {
-    if (nonItemCount_ + items_.size() == GetChildren().size()) {
+    if (nonItemCount_ + static_cast<int32_t>(items_.size()) == static_cast<int32_t>(GetChildren().size())) {
         LOGI("[indexer] no need update Items");
         return;
     }
diff --git a/frameworks/core/components_v2/indexer/render_popup_list.cpp b/frameworks/core/components_v2/indexer/render_popup_list.cpp
index 618ebebd..c328d07e 100644
--- a/frameworks/core/components_v2/indexer/render_popup_list.cpp
+++ b/frameworks/core/components_v2/indexer/render_popup_list.cpp
@@ -225,7 +225,7 @@ void RenderPopupList::CalTouchPoint(const Point& globalPoint, int32_t& selected)
         std::unique_ptr<Rect> rect = std::make_unique<Rect>(renderItem->GetGlobalOffset(),
                                         renderItem->GetLayoutSize());
         if (rect->IsInRegion(globalPoint)) {
-            selected = index + startIndex_;
+            selected = index + static_cast<int32_t>(startIndex_);
             renderItem->UpdateBoxSelected();
         } else {
             renderItem->UpdateBoxNormal();
diff --git a/frameworks/core/components_v2/inspector/indexer_composed_element.cpp b/frameworks/core/components_v2/inspector/indexer_composed_element.cpp
index e1395189..b0113fef 100644
--- a/frameworks/core/components_v2/inspector/indexer_composed_element.cpp
+++ b/frameworks/core/components_v2/inspector/indexer_composed_element.cpp
@@ -210,11 +210,11 @@ std::string IndexerComposedElement::GetArrayValue() const
     auto render = AceType::DynamicCast<RenderIndexer>(node);
     auto jsonValueArray = JsonUtil::CreateArray(true);
     auto value = render->GetArrayValue();
-    int32_t length = value.size();
+    uint32_t length = value.size();
     if (length <= 0) {
         return "";
     }
-    for (int32_t i = 0; i < length; i++) {
+    for (uint32_t i = 0; i < length; i++) {
         auto index = std::to_string(i);
         jsonValueArray->Put(index.c_str(), value[i].c_str());
     }
diff --git a/frameworks/core/components_v2/inspector/inspector.cpp b/frameworks/core/components_v2/inspector/inspector.cpp
index 3f120f81..45845624 100644
--- a/frameworks/core/components_v2/inspector/inspector.cpp
+++ b/frameworks/core/components_v2/inspector/inspector.cpp
@@ -117,7 +117,7 @@ std::string Inspector::GetInspectorTree(const RefPtr<PipelineContext>& context)
 
     size_t height = 0;
     std::unordered_map<int32_t, std::vector<std::pair<RefPtr<Element>, std::string>>> elementJSONInfoMap;
-    for (int depth = depthElementMap.size(); depth > 0; depth--) {
+    for (int depth = static_cast<int32_t>(depthElementMap.size()); depth > 0; depth--) {
         const auto& depthElements = depthElementMap[depth];
         for (const auto& element : depthElements) {
             auto inspectorElement = AceType::DynamicCast<V2::InspectorComposedElement>(element);
diff --git a/frameworks/core/components_v2/list/list_element.cpp b/frameworks/core/components_v2/list/list_element.cpp
index 140077d5..7cc95af2 100644
--- a/frameworks/core/components_v2/list/list_element.cpp
+++ b/frameworks/core/components_v2/list/list_element.cpp
@@ -103,7 +103,7 @@ bool ListElement::RequestNextFocus(bool vertical, bool reverse, const Rect& rect
     bool ret = false;
     while (!ret) {
         int32_t focusIndex = list->RequestNextFocus(vertical, reverse);
-        int32_t size = GetChildrenList().size();
+        int32_t size = static_cast<int32_t>(GetChildrenList().size());
         if (focusIndex < 0 || focusIndex >= size) {
             return false;
         }
diff --git a/frameworks/core/components_v2/list/render_list.cpp b/frameworks/core/components_v2/list/render_list.cpp
index 63273af4..ded05b0c 100644
--- a/frameworks/core/components_v2/list/render_list.cpp
+++ b/frameworks/core/components_v2/list/render_list.cpp
@@ -115,7 +115,7 @@ void RenderList::Update(const RefPtr<Component>& component)
 
     const auto& divider = component_->GetItemDivider();
     listSpace_ = component_->GetSpace();
-    cachedCount_ = component_->GetCachedCount();
+    cachedCount_ = static_cast<size_t>(component_->GetCachedCount());
 
     LOGI("cached count: %{public}zu", cachedCount_);
     spaceWidth_ = std::max(NormalizePercentToPx(component_->GetSpace(), vertical_),
@@ -865,7 +865,7 @@ void RenderList::ApplyPreviousStickyListItem(size_t index, bool needLayout, cons
 void RenderList::JumpToIndex(int32_t idx, int32_t source)
 {
     RemoveAllItems();
-    startIndex_ = idx;
+    startIndex_ = static_cast<size_t>(idx);
     currentOffset_ = 0.0;
     MarkNeedLayout(true);
 }
@@ -1221,7 +1221,7 @@ void RenderList::UpdateAccessibilityAttr()
         collectionInfo.columns = 1;
     } else {
         collectionInfo.rows = 1;
-        collectionInfo.columns = count;
+        collectionInfo.columns = static_cast<int32_t>(count);
     }
     accessibilityNode->SetCollectionInfo(collectionInfo);
     accessibilityNode->SetScrollableState(true);
diff --git a/frameworks/core/components_v2/pattern_lock/render_pattern_lock.cpp b/frameworks/core/components_v2/pattern_lock/render_pattern_lock.cpp
index 8f76f3d3..30099462 100644
--- a/frameworks/core/components_v2/pattern_lock/render_pattern_lock.cpp
+++ b/frameworks/core/components_v2/pattern_lock/render_pattern_lock.cpp
@@ -242,7 +242,7 @@ bool RenderPatternLock::CheckChoosePoint(int16_t x, int16_t y) const
 }
 bool RenderPatternLock::CheckChoosePointIsLastIndex(int16_t x, int16_t y, int16_t index) const
 {
-    if (!choosePoint_.empty() && choosePoint_.size() >= index) {
+    if (!choosePoint_.empty() && static_cast<int16_t>(choosePoint_.size()) >= index) {
         if (choosePoint_.at(choosePoint_.size() - index).GetColumn() == x &&
             choosePoint_.at(choosePoint_.size() - index).GetRow() == y) {
             return true;
@@ -289,7 +289,7 @@ void RenderPatternLock::AddPassPoint(Offset offset, int16_t x, int16_t y)
     if (passPointLength == 0) {
         return;
     }
-    passPointCount_ = passPointLength;
+    passPointCount_ = static_cast<int16_t>(passPointLength);
     if (nowCode > lastCode) {
         choosePoint_.push_back(passPointVec.front());
         if (passPointLength > 1) {
diff --git a/interfaces/native/native_interface_xcomponent.h b/interfaces/native/native_interface_xcomponent.h
index 9951176a..f4d53400 100644
--- a/interfaces/native/native_interface_xcomponent.h
+++ b/interfaces/native/native_interface_xcomponent.h
@@ -70,23 +70,23 @@ const uint32_t OH_MAX_TOUCH_POINTS_NUMBER = 10;
 
 struct OH_NativeXComponent_TouchPoint {
     // Point ID of contact between the finger and the screen.
-    int32_t id;
+    int32_t id = 0;
     // Horizontal distance of the touch point relative to the upper left corner of screen.
-    float screenX;
+    float screenX = 0.0;
     // Vertical distance of the touch point relative to the upper left corner of screen.
-    float screenY;
+    float screenY = 0.0;
     // Horizontal distance of the touch point relative to the upper left corner of touched element.
-    float x;
+    float x = 0.0;
     // Vertical distance of the touch point relative to the upper left corner of touched element.
-    float y;
+    float y = 0.0;
     // Touch type of the touch event.
-    OH_NativeXComponent_TouchEventType type;
+    OH_NativeXComponent_TouchEventType type = OH_NativeXComponent_TouchEventType::OH_NATIVEXCOMPONENT_UNKNOWN;
     // Contacted surface size of encircling the user and the touch screen.
-    double size;
+    double size = 0.0;
     // Pressure of finger squeezing the touch screen.
-    float force;
+    float force = 0.0;
     // Timestamp of the touch event.
-    long long timeStamp;
+    long long timeStamp = 0;
     // whether the dot is pressed
     bool isPressed = false;
 };
@@ -94,29 +94,29 @@ struct OH_NativeXComponent_TouchPoint {
 // the active changed point info
 struct OH_NativeXComponent_TouchEvent {
     // Point ID of contact between the finger and the screen.
-    int32_t id;
+    int32_t id = 0;
     // Horizontal distance of the touch point relative to the upper left corner of screen.
-    float screenX;
+    float screenX = 0.0;
     // Vertical distance of the touch point relative to the upper left corner of screen.
-    float screenY;
+    float screenY = 0.0;
     // Horizontal distance of the touch point relative to the upper left corner of the element to touch.
-    float x;
+    float x = 0.0;
     // Vertical distance of the touch point relative to the upper left corner of the element to touch.
-    float y;
+    float y = 0.0;
     // Touch type of the touch event.
-    OH_NativeXComponent_TouchEventType type;
+    OH_NativeXComponent_TouchEventType type = OH_NativeXComponent_TouchEventType::OH_NATIVEXCOMPONENT_UNKNOWN;
     // Contacted surface size of encircling the user and the touch screen.
-    double size;
+    double size = 0.0;
     // Pressure of finger squeezing the touch screen.
-    float force;
+    float force = 0.0;
     // Device Id.
-    int64_t deviceId;
+    int64_t deviceId = 0;
     // Timestamp of the touch event.
-    long long timeStamp;
+    long long timeStamp = 0;
     // all points on the touch screen.
     OH_NativeXComponent_TouchPoint touchPoints[OH_MAX_TOUCH_POINTS_NUMBER];
     // number of touchPointers
-    uint32_t numPoints;
+    uint32_t numPoints = 0;
 };
 
 /**