diff --git a/core/network/Downloader-curl.cpp b/core/network/Downloader-curl.cpp
index 8d993ecb8580..b2637e595748 100644
--- a/core/network/Downloader-curl.cpp
+++ b/core/network/Downloader-curl.cpp
@@ -294,7 +294,7 @@ class DownloadTaskCURL : public IDownloadTask
             }
         }
 
-        curl_easy_getinfo(_curl, CURLINFO_SPEED_DOWNLOAD, &_speed);
+        curl_easy_getinfo(_curl, CURLINFO_SPEED_DOWNLOAD_T, &_speed);
 
         return ret;
     }
@@ -309,7 +309,7 @@ class DownloadTaskCURL : public IDownloadTask
     bool _acceptRanges;
     int64_t _totalBytesExpected;
 
-    double _speed;
+    curl_off_t _speed;
     CURL* _curl;
     curl_socket_t _sockfd = -1;  // store the sockfd to support cancel download manually
     bool _cancelled       = false;
diff --git a/core/network/Downloader.h b/core/network/Downloader.h
index 8c473c7a2920..a9e6863f6221 100644
--- a/core/network/Downloader.h
+++ b/core/network/Downloader.h
@@ -71,7 +71,7 @@ class AX_DLL DownloadTask final
         int64_t bytesReceived      = 0;
         int64_t totalBytesReceived = 0;
         // speed
-        double speedInBytes = 0;
+        int64_t speedInBytes = 0;
     } mutable progressInfo;
 
     DownloadTask();
diff --git a/extensions/cocostudio/src/cocostudio/TriggerObj.cpp b/extensions/cocostudio/src/cocostudio/TriggerObj.cpp
index a9ec6b5a45e2..e9aea09a5ed9 100644
--- a/extensions/cocostudio/src/cocostudio/TriggerObj.cpp
+++ b/extensions/cocostudio/src/cocostudio/TriggerObj.cpp
@@ -198,10 +198,7 @@ void TriggerObj::serialize(const rapidjson::Value& val)
             continue;
         }
 
-        char buf[10];
-        sprintf(buf, "%d", event);
-        std::string custom_event_name(buf);
-
+        std::string custom_event_name = fmt::to_string(event);
         EventListenerCustom* listener = EventListenerCustom::create(custom_event_name, [this](EventCustom* /*evt*/) {
             if (detect())
             {
@@ -290,9 +287,8 @@ void TriggerObj::serialize(cocostudio::CocoLoader* pCocoLoader, cocostudio::stEx
                 {
                     continue;
                 }
-                char buf[10];
-                sprintf(buf, "%d", event);
-                std::string custom_event_name(buf);
+
+                std::string custom_event_name = fmt::to_string(event);
 
                 EventListenerCustom* listener =
                     EventListenerCustom::create(custom_event_name, [this](EventCustom* /*evt*/) {
diff --git a/extensions/fairygui/src/fairygui/event/InputProcessor.cpp b/extensions/fairygui/src/fairygui/event/InputProcessor.cpp
index a996a77db1e1..aeb6af60d849 100644
--- a/extensions/fairygui/src/fairygui/event/InputProcessor.cpp
+++ b/extensions/fairygui/src/fairygui/event/InputProcessor.cpp
@@ -529,7 +529,7 @@ void InputProcessor::onMouseDown(ax::EventMouse * event)
         return;
 
     auto camera = Camera::getVisitingCamera();
-    Vec2 pt(event->getCursorX(), event->getCursorY());
+    Vec2 pt = event->getLocation();
     GObject* target = _owner->hitTest(pt, camera);
     if (!target)
         target = _owner;
@@ -559,7 +559,7 @@ void InputProcessor::onMouseUp(ax::EventMouse * event)
         return;
 
     auto camera = Camera::getVisitingCamera();
-    Vec2 pt(event->getCursorX(), event->getCursorY());
+    Vec2 pt = event->getLocation();
     GObject* target = _owner->hitTest(pt, camera);
     if (!target)
         target = _owner;
@@ -620,13 +620,13 @@ void InputProcessor::onMouseUp(ax::EventMouse * event)
 void InputProcessor::onMouseMove(ax::EventMouse * event)
 {
     TouchInfo* ti = getTouch(0);
-    Vec2 npos = UIRoot->worldToRoot(Vec2(event->getCursorX(), event->getCursorY()));
+    auto pt = event->getLocation();
+    Vec2 npos = UIRoot->worldToRoot(pt);
     if (std::abs(ti->pos.x - npos.x) < 1
         && std::abs(ti->pos.y - npos.y) < 1)
         return;
 
     auto camera = Camera::getVisitingCamera();
-    Vec2 pt(event->getCursorX(), event->getCursorY());
     GObject* target = _owner->hitTest(pt, camera);
     if (!target)
         target = _owner;
@@ -669,7 +669,7 @@ void InputProcessor::onMouseMove(ax::EventMouse * event)
 void InputProcessor::onMouseScroll(ax::EventMouse * event)
 {
     auto camera = Camera::getVisitingCamera();
-    Vec2 pt(event->getCursorX(), event->getCursorY());
+    Vec2 pt = event->getLocation();
     GObject* target = _owner->hitTest(pt, camera);
     if (!target)
         target = _owner;
diff --git a/tests/cpp-tests/Source/Box2DTestBed/Box2DTestBed.cpp b/tests/cpp-tests/Source/Box2DTestBed/Box2DTestBed.cpp
index 46ab5670cb43..7166c3f6caaa 100644
--- a/tests/cpp-tests/Source/Box2DTestBed/Box2DTestBed.cpp
+++ b/tests/cpp-tests/Source/Box2DTestBed/Box2DTestBed.cpp
@@ -190,11 +190,11 @@ void Box2DTestBed::onKeyReleased(EventKeyboard::KeyCode code, Event* event)
 void Box2DTestBed::onMouseDown(Event* event)
 {
     EventMouse* e = (EventMouse*)event;
+    button[(int)EventMouse::MouseButton::BUTTON_LEFT]   = false;
+    button[(int)EventMouse::MouseButton::BUTTON_RIGHT]  = false;
+    button[(int)EventMouse::MouseButton::BUTTON_MIDDLE] = false;
     switch (e->getMouseButton())
     {
-        button[(int)EventMouse::MouseButton::BUTTON_LEFT]   = false;
-        button[(int)EventMouse::MouseButton::BUTTON_RIGHT]  = false;
-        button[(int)EventMouse::MouseButton::BUTTON_MIDDLE] = false;
     case EventMouse::MouseButton::BUTTON_LEFT:
         button[(int)EventMouse::MouseButton::BUTTON_LEFT] = true;
         break;
@@ -217,7 +217,8 @@ void Box2DTestBed::onMouseUp(Event* event)
 void Box2DTestBed::onMouseMove(Event* event)
 {
     EventMouse* e = (EventMouse*)event;
-    pos           = {e->getCursorX() / g_debugDraw.mRatio, e->getCursorY() / g_debugDraw.mRatio};
+    auto pt = e->getLocation();
+    pos           = {pt.x / g_debugDraw.mRatio, pt.y / g_debugDraw.mRatio};
 
     if (button[(int)EventMouse::MouseButton::BUTTON_RIGHT])
     {
diff --git a/tests/cpp-tests/Source/Box2DTestBed/tests/bridge.cpp b/tests/cpp-tests/Source/Box2DTestBed/tests/bridge.cpp
index 69bfab2cf1ea..8447bd43dd30 100644
--- a/tests/cpp-tests/Source/Box2DTestBed/tests/bridge.cpp
+++ b/tests/cpp-tests/Source/Box2DTestBed/tests/bridge.cpp
@@ -73,7 +73,7 @@ class Bridge : public Test
                 prevBody = body;
             }
 
-            b2Vec2 anchor(-15.0f + 1.0f * e_count, 5.0f);
+            b2Vec2 anchor(-15.0f + 1.0f * static_cast<float>(e_count), 5.0f);
             jd.Initialize(prevBody, ground, anchor);
             m_world->CreateJoint(&jd);
         }
diff --git a/tests/cpp-tests/Source/ChipmunkTestBed/ChipmunkTestBed.cpp b/tests/cpp-tests/Source/ChipmunkTestBed/ChipmunkTestBed.cpp
index 9fc5fc1291fe..4166ffdd8dd9 100644
--- a/tests/cpp-tests/Source/ChipmunkTestBed/ChipmunkTestBed.cpp
+++ b/tests/cpp-tests/Source/ChipmunkTestBed/ChipmunkTestBed.cpp
@@ -481,9 +481,9 @@ void ChipmunkTestBed::onMouseUp(Event* event)
 void ChipmunkTestBed::onMouseMove(Event* event)
 {
     EventMouse* e = (EventMouse*)event;
-
-    ChipmunkDemoMouse.x = e->getCursorX() - physicsDebugNodeOffset.x;
-    ChipmunkDemoMouse.y = e->getCursorY() - physicsDebugNodeOffset.y;
+    auto pt = e->getLocation();
+    ChipmunkDemoMouse.x = pt.x - physicsDebugNodeOffset.x;
+    ChipmunkDemoMouse.y = pt.y - physicsDebugNodeOffset.y;
 
     cpBodySetPosition(mouse_body, ChipmunkDemoMouse);
 }
diff --git a/tests/cpp-tests/Source/ClippingNodeTest/ClippingNodeTest.cpp b/tests/cpp-tests/Source/ClippingNodeTest/ClippingNodeTest.cpp
index 7fc184a9b851..c5be5b3581dc 100644
--- a/tests/cpp-tests/Source/ClippingNodeTest/ClippingNodeTest.cpp
+++ b/tests/cpp-tests/Source/ClippingNodeTest/ClippingNodeTest.cpp
@@ -991,7 +991,7 @@ void ClippingNodePerformanceTest::setup()
     countLabel->setPosition(Vec2(s.width / 2, s.height - 120));
     addChild(countLabel, 1);
     
-    auto addClippingNode = [=] (int count) -> void {
+    auto addClippingNode = [this, s, countLabel] (int count) -> void {
         for (int i = 0; i < count; i++) {
             Vec2 pos = Vec2(random(0, (int) s.width), random(0, (int) s.height));
             auto stencil = Sprite::create("Images/stars2.png");
diff --git a/tests/cpp-tests/Source/InputTest/MouseTest.cpp b/tests/cpp-tests/Source/InputTest/MouseTest.cpp
index a835be544f45..3b156e176546 100644
--- a/tests/cpp-tests/Source/InputTest/MouseTest.cpp
+++ b/tests/cpp-tests/Source/InputTest/MouseTest.cpp
@@ -92,16 +92,15 @@ void MouseEventTest::onMouseUp(Event* event)
 void MouseEventTest::onMouseMove(Event* event)
 {
     EventMouse* e   = (EventMouse*)event;
-    std::string str = "MousePosition X:";
-    str             = str + tostr(e->getCursorX()) + " Y:" + tostr(e->getCursorY());
-    _labelPosition->setString(str.c_str());
+    auto loc = e->getLocation();
+    std::string str = fmt::format("MousePosition:({},{})", loc.x, loc.y);
+    _labelPosition->setString(str);
 }
 
 void MouseEventTest::onMouseScroll(Event* event)
 {
     EventMouse* e   = (EventMouse*)event;
-    std::string str = "Mouse Scroll detected, X: ";
-    str             = str + tostr(e->getScrollX()) + " Y: " + tostr(e->getScrollY());
+    std::string str = fmt::format("Mouse Scroll detected, X:{} Y:{}", e->getScrollX(), e->getScrollY());
     _labelAction->setString(str.c_str());
 }
 
diff --git a/tests/cpp-tests/Source/LabelTest/LabelTestNew.cpp b/tests/cpp-tests/Source/LabelTest/LabelTestNew.cpp
index 0acbe935b079..d9d7eda3d479 100644
--- a/tests/cpp-tests/Source/LabelTest/LabelTestNew.cpp
+++ b/tests/cpp-tests/Source/LabelTest/LabelTestNew.cpp
@@ -2323,7 +2323,7 @@ void LabelLayoutBaseTest::initWrapOption(const ax::Size& size)
     checkBox->setSelected(true);
     checkBox->setName("toggleWrap");
 
-    checkBox->addEventListener([=](Object* ref, CheckBox::EventType event) {
+    checkBox->addEventListener([this](Object* /*sender*/, CheckBox::EventType event) {
         if (event == CheckBox::EventType::SELECTED)
         {
             _label->enableWrap(true);
@@ -2354,7 +2354,7 @@ void LabelLayoutBaseTest::initToggleLabelTypeOption(const ax::Size& size)
 
     auto stepper = (ControlStepper*)this->getChildByName("stepper");
 
-    checkBox->addEventListener([=](Object* ref, CheckBox::EventType event) {
+    checkBox->addEventListener([this, stepper](Object* /*sender*/, CheckBox::EventType event) {
         float fontSize = stepper->getValue();
 
         if (event == CheckBox::EventType::SELECTED)
@@ -2419,7 +2419,7 @@ void LabelLayoutBaseTest::initSliders(const ax::Size& size)
     addChild(slider2);
     auto winSize = Director::getInstance()->getVisibleSize();
 
-    slider->addEventListener([=](Object* ref, Slider::EventType event) {
+    slider->addEventListener([this, slider, winSize](Object* /*sender*/, Slider::EventType event) {
         float percent     = slider->getPercent();
         auto labelSize    = _label->getContentSize();
         auto drawNodeSize = Size(percent / 100.0 * winSize.width, labelSize.height);
@@ -2431,7 +2431,7 @@ void LabelLayoutBaseTest::initSliders(const ax::Size& size)
         this->updateDrawNodeSize(drawNodeSize);
     });
 
-    slider2->addEventListener([=](Object* ref, Slider::EventType event) {
+    slider2->addEventListener([this, slider2, winSize](Object* /*sender*/, Slider::EventType event) {
         float percent     = slider2->getPercent();
         auto labelSize    = _label->getContentSize();
         auto drawNodeSize = Size(labelSize.width, percent / 100.0 * winSize.height);
@@ -2663,7 +2663,7 @@ LabelResizeTest::LabelResizeTest()
     slider2->setVisible(false);
 
     auto winSize = Director::getInstance()->getVisibleSize();
-    slider1->addEventListener([=](Object* ref, Slider::EventType event) {
+    slider1->addEventListener([this, slider1, winSize](Object* /*sender*/, Slider::EventType event) {
         float percent     = slider1->getPercent();
         auto drawNodeSize = Size(percent / 100.0 * winSize.width, _label->getContentSize().height);
         if (drawNodeSize.height <= 0)
@@ -2690,7 +2690,7 @@ LabelResizeTest::LabelResizeTest()
     checkBox->setSelected(false);
     checkBox->setName("LineBreak");
 
-    checkBox->addEventListener([=](Object* ref, CheckBox::EventType event) {
+    checkBox->addEventListener([this](Object* /*sender*/, CheckBox::EventType event) {
         if (event == CheckBox::EventType::SELECTED)
         {
             _label->setLineBreakWithoutSpace(true);
@@ -2729,7 +2729,7 @@ LabelToggleTypeTest::LabelToggleTypeTest()
     slider2->setVisible(false);
 
     auto winSize = Director::getInstance()->getVisibleSize();
-    slider1->addEventListener([=](Object* ref, Slider::EventType event) {
+    slider1->addEventListener([this, slider1, winSize](Object* /*sender*/, Slider::EventType event) {
         float percent     = slider1->getPercent();
         auto drawNodeSize = Size(percent / 100.0 * winSize.width, _label->getContentSize().height);
         if (drawNodeSize.height <= 0)
@@ -2756,7 +2756,7 @@ LabelToggleTypeTest::LabelToggleTypeTest()
     checkBox->setSelected(false);
     checkBox->setName("LineBreak");
 
-    checkBox->addEventListener([=](Object* ref, CheckBox::EventType event) {
+    checkBox->addEventListener([this](Object* /*sender*/, CheckBox::EventType event) {
         if (event == CheckBox::EventType::SELECTED)
         {
             _label->setLineBreakWithoutSpace(true);
@@ -2875,7 +2875,7 @@ LabelSystemFontTest::LabelSystemFontTest()
     auto slider1 = (ui::Slider*)this->getChildByTag(1);
 
     auto winSize = Director::getInstance()->getVisibleSize();
-    slider1->addEventListener([=](Object* ref, Slider::EventType event) {
+    slider1->addEventListener([this, slider1, winSize](Object* /*sender*/, Slider::EventType event) {
         float percent     = slider1->getPercent();
         auto drawNodeSize = Size(percent / 100.0 * winSize.width, _label->getContentSize().height);
         if (drawNodeSize.height <= 0)
@@ -2899,7 +2899,7 @@ LabelSystemFontTest::LabelSystemFontTest()
     checkBox->setSelected(false);
     checkBox->setName("LineBreak");
 
-    checkBox->addEventListener([=](Object* ref, CheckBox::EventType event) {
+    checkBox->addEventListener([this](Object* /*sender*/, CheckBox::EventType event) {
         if (event == CheckBox::EventType::SELECTED)
         {
             _label->setLineBreakWithoutSpace(true);
diff --git a/tests/cpp-tests/Source/MotionStreakTest/MotionStreakTest.cpp b/tests/cpp-tests/Source/MotionStreakTest/MotionStreakTest.cpp
index 218b16a24925..dd2afeb2b0d6 100644
--- a/tests/cpp-tests/Source/MotionStreakTest/MotionStreakTest.cpp
+++ b/tests/cpp-tests/Source/MotionStreakTest/MotionStreakTest.cpp
@@ -204,7 +204,7 @@ void Issue12226::onEnter()
 
     const uint32_t length = (radius * 0.95);
 
-    std::function<void(float)> updateMotionStreak = [=](float dt) {
+    std::function<void(float)> updateMotionStreak = [outer, length, this](float dt) {
         Vec2 position =
             Vec2(outer->getPositionX() + length * cosf(-1 * AX_DEGREES_TO_RADIANS(outer->getRotation() + 90.0f)),
                  outer->getPositionY() + length * sinf(-1 * AX_DEGREES_TO_RADIANS(outer->getRotation() + 90.0f)));
diff --git a/tests/cpp-tests/Source/NavMeshTest/NavMeshTest.cpp b/tests/cpp-tests/Source/NavMeshTest/NavMeshTest.cpp
index 8f774e29d5c4..54ffc2291d31 100644
--- a/tests/cpp-tests/Source/NavMeshTest/NavMeshTest.cpp
+++ b/tests/cpp-tests/Source/NavMeshTest/NavMeshTest.cpp
@@ -308,7 +308,7 @@ bool NavMeshBasicTestDemo::init()
     TTFConfig ttfConfig("fonts/arial.ttf", 15);
     _debugLabel = Label::createWithTTF(ttfConfig, "Debug Draw ON");
     _debugLabel->retain();
-    auto menuItem1 = MenuItemLabel::create(_debugLabel, [=](Object*) {
+    auto menuItem1 = MenuItemLabel::create(_debugLabel, [this](Object*) {
         bool enabledDebug = !getNavMesh()->isDebugDrawEnabled();
         getNavMesh()->setDebugDrawEnable(enabledDebug);
         if (enabledDebug)
@@ -355,7 +355,7 @@ bool NavMeshAdvanceTestDemo::init()
     _debugLabel = Label::createWithTTF(ttfConfig, "Debug Draw ON");
     _debugLabel->retain();
 
-    auto menuItem0 = MenuItemLabel::create(_obstacleLabel, [=](Object*) {
+    auto menuItem0 = MenuItemLabel::create(_obstacleLabel, [this](Object*) {
         float x = ax::random(-50.0f, 50.0f);
         float z = ax::random(-50.0f, 50.0f);
         Physics3DWorld::HitResult result;
@@ -365,7 +365,7 @@ bool NavMeshAdvanceTestDemo::init()
     menuItem0->setAnchorPoint(Vec2::ANCHOR_TOP_LEFT);
     menuItem0->setPosition(Vec2(VisibleRect::left().x, VisibleRect::top().y - 50));
 
-    auto menuItem1 = MenuItemLabel::create(_agentLabel, [=](Object*) {
+    auto menuItem1 = MenuItemLabel::create(_agentLabel, [this](Object*) {
         float x = ax::random(-50.0f, 50.0f);
         float z = ax::random(-50.0f, 50.0f);
         Physics3DWorld::HitResult result;
@@ -375,7 +375,7 @@ bool NavMeshAdvanceTestDemo::init()
     menuItem1->setAnchorPoint(Vec2::ANCHOR_TOP_LEFT);
     menuItem1->setPosition(Vec2(VisibleRect::left().x, VisibleRect::top().y - 100));
 
-    auto menuItem2 = MenuItemLabel::create(_debugLabel, [=](Object*) {
+    auto menuItem2 = MenuItemLabel::create(_debugLabel, [this](Object*) {
         bool enabledDebug = !getNavMesh()->isDebugDrawEnabled();
         getNavMesh()->setDebugDrawEnable(enabledDebug);
         if (enabledDebug)
diff --git a/tests/cpp-tests/Source/NewAudioEngineTest/NewAudioEngineTest.cpp b/tests/cpp-tests/Source/NewAudioEngineTest/NewAudioEngineTest.cpp
index 44bbbaaecdbd..c759f4fdedaa 100644
--- a/tests/cpp-tests/Source/NewAudioEngineTest/NewAudioEngineTest.cpp
+++ b/tests/cpp-tests/Source/NewAudioEngineTest/NewAudioEngineTest.cpp
@@ -478,7 +478,7 @@ bool AudioWavTest::init()
         _stateLabel->setPosition(layerSize.width / 2, layerSize.height * 0.7f);
         addChild(_stateLabel);
 
-        auto playPrev = TextButton::create("Play Prev", [=](TextButton* button) {
+        auto playPrev = TextButton::create("Play Prev", [this](TextButton* button) {
             if (_curIndex > 0)
             {
                 AudioEngine::stop(_audioID);
@@ -490,7 +490,7 @@ bool AudioWavTest::init()
         playPrev->setPosition(layerSize.width * 0.35f, layerSize.height * 0.5f);
         addChild(playPrev);
 
-        auto playNext = TextButton::create("Play Next", [=](TextButton* button) {
+        auto playNext = TextButton::create("Play Next", [this](TextButton* button) {
             if (_curIndex != -1 && _curIndex < (_wavFiles.size() - 1))
             {
                 AudioEngine::stop(_audioID);
@@ -736,7 +736,7 @@ bool AudioIssue18597Test::init()
 
         // test case for https://github.com/cocos2d/cocos2d-x/issues/18597
         this->schedule(
-            [=](float dt) {
+            [this](float dt) {
                 AXLOGD("issues 18597 audio crash test");
                 for (int i = 0; i < 2; ++i)
                 {
@@ -754,7 +754,7 @@ bool AudioIssue18597Test::init()
         this->addChild(labelTime);
         // update label quickly
         this->schedule(
-            [=](float dt) {
+            [this](float dt) {
                 _time += dt;
                 char timeString[20] = {0};
                 sprintf(timeString, "Time %2.2f", _time);
diff --git a/tests/cpp-tests/Source/NewEventDispatcherTest/NewEventDispatcherTest.cpp b/tests/cpp-tests/Source/NewEventDispatcherTest/NewEventDispatcherTest.cpp
index 672e3fbfd51b..04f0a2a1911e 100644
--- a/tests/cpp-tests/Source/NewEventDispatcherTest/NewEventDispatcherTest.cpp
+++ b/tests/cpp-tests/Source/NewEventDispatcherTest/NewEventDispatcherTest.cpp
@@ -222,7 +222,7 @@ void TouchableSpriteTest::onEnter()
 
         _eventDispatcher->removeEventListenersForType(EventListener::Type::TOUCH_ONE_BY_ONE);
 
-        auto nextItem = MenuItemFont::create("Next", [=](Object* sender) { getTestSuite()->enterNextTest(); });
+        auto nextItem = MenuItemFont::create("Next", [this](Object* sender) { getTestSuite()->enterNextTest(); });
 
         nextItem->setFontSizeObj(16);
         nextItem->setPosition(VisibleRect::right() + Vec2(-100.0f, -30.0f));
@@ -416,7 +416,7 @@ void RemoveListenerWhenDispatching::onEnter()
     std::shared_ptr<bool> enable(new bool(true));
     // Enable/Disable item
     auto toggleItem = MenuItemToggle::createWithCallback(
-        [=](Object* sender) {
+        [this, enable, listener1, statusLabel, sprite1](Object* sender) {
             if (*enable)
             {
                 _eventDispatcher->removeEventListener(listener1);
@@ -465,25 +465,23 @@ void CustomEventTest::onEnter()
     statusLabel->setPosition(origin + Vec2(size.width / 2, size.height - 90));
     addChild(statusLabel);
 
-    _listener = EventListenerCustom::create("game_custom_event1", [=](EventCustom* event) {
+    _listener = EventListenerCustom::create("game_custom_event1", [statusLabel](EventCustom* event) {
         std::string str("Custom event 1 received, ");
-        char* buf = static_cast<char*>(event->getUserData());
+        auto& buf = *static_cast<std::string*>(event->getUserData());
         str += buf;
         str += " times";
-        statusLabel->setString(str.c_str());
+        statusLabel->setString(str);
     });
 
     _eventDispatcher->addEventListenerWithFixedPriority(_listener, 1);
 
-    auto sendItem = MenuItemFont::create("Send Custom Event 1", [=](Object* sender) {
+    auto sendItem = MenuItemFont::create("Send Custom Event 1", [this](Object* /*sender*/) {
         static int count = 0;
         ++count;
-        char* buf = new char[10];
-        sprintf(buf, "%d", count);
+        auto str = fmt::to_string(count);
         EventCustom event("game_custom_event1");
-        event.setUserData(buf);
+        event.setUserData(&str);
         _eventDispatcher->dispatchEvent(&event);
-        AX_SAFE_DELETE_ARRAY(buf);
     });
     sendItem->setPosition(origin + Vec2(size.width / 2, size.height / 2));
 
@@ -493,7 +491,7 @@ void CustomEventTest::onEnter()
 
     _listener2 = EventListenerCustom::create("game_custom_event2", [=](EventCustom* event) {
         std::string str("Custom event 2 received, ");
-        char* buf = static_cast<char*>(event->getUserData());
+        auto& buf = *static_cast<std::string*>(event->getUserData());
         str += buf;
         str += " times";
         statusLabel2->setString(str.c_str());
@@ -501,15 +499,13 @@ void CustomEventTest::onEnter()
 
     _eventDispatcher->addEventListenerWithFixedPriority(_listener2, 1);
 
-    auto sendItem2 = MenuItemFont::create("Send Custom Event 2", [=](Object* sender) {
+    auto sendItem2 = MenuItemFont::create("Send Custom Event 2", [this](Object* /*sender*/) {
         static int count = 0;
         ++count;
-        char* buf = new char[10];
-        sprintf(buf, "%d", count);
+        auto buf = fmt::to_string(count);
         EventCustom event("game_custom_event2");
-        event.setUserData(buf);
+        event.setUserData(&buf);
         _eventDispatcher->dispatchEvent(&event);
-        AX_SAFE_DELETE_ARRAY(buf);
     });
     sendItem2->setPosition(origin + Vec2(size.width / 2, size.height / 2 - 40));
 
@@ -803,7 +799,7 @@ void RemoveListenerAfterAddingTest::onEnter()
         this->addChild(menu);
     };
 
-    auto item2 = MenuItemFont::create("Click Me 2", [=](Object* sender) {
+    auto item2 = MenuItemFont::create("Click Me 2", [this, addNextButton](Object* sender) {
         auto listener          = EventListenerTouchOneByOne::create();
         listener->onTouchBegan = [](Touch* touch, Event* event) -> bool {
             AXASSERT(false, "Should not come here!");
@@ -818,7 +814,7 @@ void RemoveListenerAfterAddingTest::onEnter()
 
     item2->setPosition(VisibleRect::center() + Vec2(0.0f, 40.0f));
 
-    auto item3 = MenuItemFont::create("Click Me 3", [=](Object* sender) {
+    auto item3 = MenuItemFont::create("Click Me 3", [this, addNextButton](Object* /*sender*/) {
         auto listener          = EventListenerTouchOneByOne::create();
         listener->onTouchBegan = [](Touch* touch, Event* event) -> bool {
             AXASSERT(false, "Should not come here!");
@@ -1060,7 +1056,7 @@ StopPropagationTest::StopPropagationTest()
     auto touchOneByOneListener = EventListenerTouchOneByOne::create();
     touchOneByOneListener->setSwallowTouches(true);
 
-    touchOneByOneListener->onTouchBegan = [=](Touch* touch, Event* event) {
+    touchOneByOneListener->onTouchBegan = [this](Touch* touch, Event* event) {
         // Skip if don't touch top half screen.
         if (!this->isPointInTopHalfAreaOfScreen(touch->getLocation()))
             return false;
@@ -1085,7 +1081,7 @@ StopPropagationTest::StopPropagationTest()
     };
 
     auto touchAllAtOnceListener            = EventListenerTouchAllAtOnce::create();
-    touchAllAtOnceListener->onTouchesBegan = [=](const std::vector<Touch*>& touches, Event* event) {
+    touchAllAtOnceListener->onTouchesBegan = [this](const std::vector<Touch*>& touches, Event* event) {
         // Skip if don't touch top half screen.
         if (this->isPointInTopHalfAreaOfScreen(touches[0]->getLocation()))
             return;
@@ -1101,7 +1097,7 @@ StopPropagationTest::StopPropagationTest()
         event->stopPropagation();
     };
 
-    touchAllAtOnceListener->onTouchesEnded = [=](const std::vector<Touch*>& touches, Event* event) {
+    touchAllAtOnceListener->onTouchesEnded = [this](const std::vector<Touch*>& touches, Event* event) {
         // Skip if don't touch top half screen.
         if (this->isPointInTopHalfAreaOfScreen(touches[0]->getLocation()))
             return;
@@ -1222,14 +1218,14 @@ PauseResumeTargetTest::PauseResumeTargetTest()
     sprite3->setPosition(Vec2(0, 0));
     sprite2->addChild(sprite3, -1);
 
-    auto popup = MenuItemFont::create("Popup", [=](Object* sender) {
+    auto popup = MenuItemFont::create("Popup", [this, sprite3](Object* sender) {
         sprite3->getListener()->setEnabled(false);
         _eventDispatcher->pauseEventListenersForTarget(this, true);
 
         auto colorLayer = LayerColor::create(Color4B(0, 0, 255, 100));
         this->addChild(colorLayer, 99999);
 
-        auto closeItem = MenuItemFont::create("close", [=](Object* sender) {
+        auto closeItem = MenuItemFont::create("close", [this, colorLayer, sprite3](Object* /*sender*/) {
             colorLayer->removeFromParent();
             _eventDispatcher->resumeEventListenersForTarget(this, true);
             sprite3->getListener()->setEnabled(true);
@@ -1279,7 +1275,7 @@ PauseResumeTargetTest2::PauseResumeTargetTest2()
     _touchableSprite->setPosition(origin + Vec2(size.width / 2, size.height / 2) + Vec2(-80.0f, 40.0f));
     addChild(_touchableSprite);
 
-    _itemPauseTouch = MenuItemFont::create("pauseTouch", [=](Object* sender) {
+    _itemPauseTouch = MenuItemFont::create("pauseTouch", [this](Object* /*sender*/) {
         _itemPauseTouch->setEnabled(false);
         _itemResumeTouch->setEnabled(true);
 
@@ -1289,7 +1285,7 @@ PauseResumeTargetTest2::PauseResumeTargetTest2()
     _itemPauseTouch->setAnchorPoint(Vec2::ANCHOR_MIDDLE_RIGHT);
     _itemPauseTouch->setPosition(VisibleRect::right() + Vec2(-150.0f, 0.0f));
 
-    _itemResumeTouch = MenuItemFont::create("resumeTouch", [=](Object* sender) {
+    _itemResumeTouch = MenuItemFont::create("resumeTouch", [this](Object* /*sender*/) {
         _itemPauseTouch->setEnabled(true);
         _itemResumeTouch->setEnabled(false);
 
@@ -1299,7 +1295,7 @@ PauseResumeTargetTest2::PauseResumeTargetTest2()
     _itemResumeTouch->setAnchorPoint(Vec2::ANCHOR_MIDDLE_RIGHT);
     _itemResumeTouch->setPosition(VisibleRect::right() + Vec2(0, 0));
 
-    _itemAddToScene = MenuItemFont::create("addToScene", [=](Object* sender) {
+    _itemAddToScene = MenuItemFont::create("addToScene", [this](Object* /*sender*/) {
         _itemAddToScene->setEnabled(false);
         _itemRemoveFromScene->setEnabled(true);
 
@@ -1309,7 +1305,7 @@ PauseResumeTargetTest2::PauseResumeTargetTest2()
     _itemAddToScene->setAnchorPoint(Vec2::ANCHOR_MIDDLE_RIGHT);
     _itemAddToScene->setPosition(VisibleRect::right() + Vec2(-150.0f, -50.0f));
 
-    _itemRemoveFromScene = MenuItemFont::create("removeFromScene", [=](Object* sender) {
+    _itemRemoveFromScene = MenuItemFont::create("removeFromScene", [this](Object* /*sender*/) {
         _itemAddToScene->setEnabled(true);
         _itemRemoveFromScene->setEnabled(false);
         _touchableSprite->removeFromParentAndCleanup(false);
@@ -1359,14 +1355,14 @@ PauseResumeTargetTest3::PauseResumeTargetTest3()
     _touchableSprite->setPosition(origin + Vec2(size.width / 2, size.height / 2) + Vec2(-80.0f, 40.0f));
     addChild(_touchableSprite);
 
-    auto item = MenuItemFont::create("addListener", [=](Object* sender) {
+    auto item = MenuItemFont::create("addListener", [this](Object* sender) {
         MenuItemFont* senderItem = static_cast<MenuItemFont*>(sender);
         senderItem->setEnabled(false);
 
         auto listener = EventListenerTouchOneByOne::create();
         listener->setSwallowTouches(true);
 
-        listener->onTouchBegan = [=](Touch* touch, Event* event) {
+        listener->onTouchBegan = [this](Touch* touch, Event* event) {
             Vec2 locationInNode = _touchableSprite->convertToNodeSpace(touch->getLocation());
             Size s              = _touchableSprite->getContentSize();
             Rect rect           = Rect(0, 0, s.width, s.height);
@@ -1433,7 +1429,7 @@ Issue4129::Issue4129() : _bugFixed(false)
 
         _eventDispatcher->removeAllEventListeners();
 
-        auto nextItem = MenuItemFont::create("Reset", [=](Object* sender) {
+        auto nextItem = MenuItemFont::create("Reset", [this](Object* /*sender*/) {
             AXASSERT(_bugFixed, "This issue was not fixed!");
             getTestSuite()->restartCurrTest();
         });
@@ -1632,7 +1628,7 @@ RegisterAndUnregisterWhileEventHanldingTest::RegisterAndUnregisterWhileEventHanl
     Vec2 origin = Director::getInstance()->getVisibleOrigin();
     Size size   = Director::getInstance()->getVisibleSize();
 
-    auto callback1 = [=](DanglingNodePointersTestSprite* sprite) {
+    auto callback1 = [this, origin, size](DanglingNodePointersTestSprite* sprite) {
         auto callback2 = [](DanglingNodePointersTestSprite* sprite) {
             AXASSERT(false, "This should never get called!");
         };
diff --git a/tests/cpp-tests/Source/Physics3DTest/Physics3DTest.cpp b/tests/cpp-tests/Source/Physics3DTest/Physics3DTest.cpp
index 075b0ed21650..1ca9aaa66273 100644
--- a/tests/cpp-tests/Source/Physics3DTest/Physics3DTest.cpp
+++ b/tests/cpp-tests/Source/Physics3DTest/Physics3DTest.cpp
@@ -117,7 +117,7 @@ bool Physics3DTestDemo::init()
 
         TTFConfig ttfConfig("fonts/arial.ttf", 10);
         auto label = Label::createWithTTF(ttfConfig, "DebugDraw OFF");
-        auto menuItem = MenuItemLabel::create(label, [=](Object* /*ref*/) {
+        auto menuItem = MenuItemLabel::create(label, [this, label](Object* /*sender*/) {
             if (getPhysics3DWorld()->isDebugDrawEnabled())
             {
                 getPhysics3DWorld()->setDebugDrawEnable(false);
@@ -758,7 +758,7 @@ bool Physics3DCollisionCallbackDemo::init()
             this->addChild(mesh);
             // preload
             //
-            rigidBody->setCollisionCallback([=](const Physics3DCollisionInfo& ci) {
+            rigidBody->setCollisionCallback([this](const Physics3DCollisionInfo& ci) {
                 if (!ci.collisionPointList.empty())
                 {
                     if (ci.objA->getMask() != 0)
diff --git a/tests/cpp-tests/Source/SpritePolygonTest/SpritePolygonTest.cpp b/tests/cpp-tests/Source/SpritePolygonTest/SpritePolygonTest.cpp
index d345b13402b1..4b993a760f4c 100644
--- a/tests/cpp-tests/Source/SpritePolygonTest/SpritePolygonTest.cpp
+++ b/tests/cpp-tests/Source/SpritePolygonTest/SpritePolygonTest.cpp
@@ -78,7 +78,7 @@ bool SpritePolygonTestCase::init()
         {
             TTFConfig ttfConfig("fonts/arial.ttf", 10);
             auto label    = Label::createWithTTF(ttfConfig, "DebugDraw OFF");
-            auto menuItem = MenuItemLabel::create(label, [=](Object* ref) {
+            auto menuItem = MenuItemLabel::create(label, [this, label](Object* ref) {
                 if (_isDebugDraw)
                 {
                     _isDebugDraw = false;
diff --git a/tests/cpp-tests/Source/UITest/CocoStudioGUITest/UIEditBoxTest.cpp b/tests/cpp-tests/Source/UITest/CocoStudioGUITest/UIEditBoxTest.cpp
index 071549c05fe3..052553305467 100644
--- a/tests/cpp-tests/Source/UITest/CocoStudioGUITest/UIEditBoxTest.cpp
+++ b/tests/cpp-tests/Source/UITest/CocoStudioGUITest/UIEditBoxTest.cpp
@@ -79,7 +79,7 @@ bool UIEditBoxTest::init()
         auto buttonSize = button->getContentSize();
         button->setTitleText("Single Line");
         button->setPosition(_editName->getPosition() + Vec2(editBoxSize.width / 2 + buttonSize.width / 2, 0.0f));
-        button->addClickEventListener([=](Object* ref) { _editName->setInputMode(ui::EditBox::InputMode::SINGLE_LINE); });
+        button->addClickEventListener([this](Object* /*sender*/) { _editName->setInputMode(ui::EditBox::InputMode::SINGLE_LINE); });
         addChild(button);
 
         // middle
@@ -102,7 +102,7 @@ bool UIEditBoxTest::init()
         buttonPassword->setPosition(_editPassword->getPosition() +
                                     Vec2(editBoxSize.width / 2 + buttonSize.width / 2, 0.0f));
         buttonPassword->addClickEventListener(
-            [=](Object* ref) { _editPassword->setInputMode(ui::EditBox::InputMode::ANY); });
+            [this](Object* /*sender*/) { _editPassword->setInputMode(ui::EditBox::InputMode::ANY); });
         addChild(buttonPassword);
 
         // bottom
@@ -129,7 +129,7 @@ bool UIEditBoxTest::init()
         buttonEmail->setTitleText("Multiline");
         buttonEmail->setPosition(_editEmailParent->getPosition() +
                                  Vec2(editBoxSize.width / 2 + buttonSize.width / 2, 0.0f));
-        buttonEmail->addClickEventListener([=](Object* ref) { _editEmail->setInputMode(ui::EditBox::InputMode::ANY); });
+        buttonEmail->addClickEventListener([this](Object* /*sender*/) { _editEmail->setInputMode(ui::EditBox::InputMode::ANY); });
         addChild(buttonEmail);
 
         return true;
@@ -213,7 +213,7 @@ bool UIEditBoxTestToggleVisibility::init()
         auto buttonSize = button->getContentSize();
         button->setTitleText("Toggle Visibility");
         button->setPosition(_editName->getPosition() + Vec2(editBoxSize.width / 2 + buttonSize.width / 2, 0.0f));
-        button->addClickEventListener([=](Object* ref) { _editName->setVisible(!_editName->isVisible()); });
+        button->addClickEventListener([this](Object* /*sender*/) { _editName->setVisible(!_editName->isVisible()); });
         addChild(button);
 
         // middle
@@ -235,7 +235,7 @@ bool UIEditBoxTestToggleVisibility::init()
         buttonPassword->setPosition(_editPassword->getPosition() +
                                     Vec2(editBoxSize.width / 2 + buttonSize.width / 2, 0.0f));
         buttonPassword->addClickEventListener(
-            [=](Object* ref) { _editPassword->setVisible(!_editPassword->isVisible()); });
+            [this](Object* /*sender*/) { _editPassword->setVisible(!_editPassword->isVisible()); });
         addChild(buttonPassword);
 
         // bottom
@@ -262,7 +262,7 @@ bool UIEditBoxTestToggleVisibility::init()
         buttonEmail->setTitleText("Toggle Visibility");
         buttonEmail->setPosition(_editEmailParent->getPosition() +
                                  Vec2(editBoxSize.width / 2 + buttonSize.width / 2, 0.0f));
-        buttonEmail->addClickEventListener([=](Object* ref) { _editEmail->setVisible(!_editEmail->isVisible()); });
+        buttonEmail->addClickEventListener([this](Object* /*sender*/) { _editEmail->setVisible(!_editEmail->isVisible()); });
         addChild(buttonEmail);
 
         return true;
diff --git a/tests/cpp-tests/Source/UITest/CocoStudioGUITest/UIPageViewTest/UIPageViewTest.cpp b/tests/cpp-tests/Source/UITest/CocoStudioGUITest/UIPageViewTest/UIPageViewTest.cpp
index 99df2777f765..325727f131a9 100644
--- a/tests/cpp-tests/Source/UITest/CocoStudioGUITest/UIPageViewTest/UIPageViewTest.cpp
+++ b/tests/cpp-tests/Source/UITest/CocoStudioGUITest/UIPageViewTest/UIPageViewTest.cpp
@@ -513,7 +513,7 @@ bool UIPageViewDynamicAddAndRemoveTest::init()
         button->setZoomScale(0.3f);
         button->setPressedActionEnabled(true);
         button->setTitleColor(Color3B::RED);
-        button->addClickEventListener([=](Object* sender) {
+        button->addClickEventListener([this, pageView](Object* /*sender*/) {
             HBox* outerBox = HBox::create();
             outerBox->setContentSize(Size(240.0f, 130.0f));
 
@@ -547,7 +547,7 @@ bool UIPageViewDynamicAddAndRemoveTest::init()
         button2->setZoomScale(0.3f);
         button2->setPressedActionEnabled(true);
         button2->setTitleColor(Color3B::RED);
-        button2->addClickEventListener([=](Object* sender) {
+        button2->addClickEventListener([this, pageView](Object* /*sender*/) {
             if (pageView->getItems().size() > 0)
             {
                 pageView->removeItem(pageView->getItems().size() - 1);
@@ -568,7 +568,7 @@ bool UIPageViewDynamicAddAndRemoveTest::init()
         button3->setZoomScale(0.3f);
         button3->setPressedActionEnabled(true);
         button3->setTitleColor(Color3B::RED);
-        button3->addClickEventListener([=](Object* sender) {
+        button3->addClickEventListener([this, pageView](Object* /*sender*/) {
             pageView->removeAllItems();
             _displayValueLabel->setString(
                 fmt::format("page count = {}", static_cast<int32_t>(pageView->getItems().size())));
@@ -579,7 +579,7 @@ bool UIPageViewDynamicAddAndRemoveTest::init()
         auto button4 = (ui::Button*)button3->clone();
         button4->setTitleText("Scroll to Page4");
         button4->setPositionNormalized(Vec2(0.85f, 0.5f));
-        button4->addClickEventListener([=](Object* sender) {
+        button4->addClickEventListener([pageView](Object* /*sender*/) {
             pageView->scrollToItem(3);
             AXLOGD("current page index = {}", pageView->getCurrentPageIndex());
         });
diff --git a/tests/cpp-tests/Source/UITest/CocoStudioGUITest/UIScale9SpriteTest.cpp b/tests/cpp-tests/Source/UITest/CocoStudioGUITest/UIScale9SpriteTest.cpp
index 4728cf920ee5..fdfc87641aac 100644
--- a/tests/cpp-tests/Source/UITest/CocoStudioGUITest/UIScale9SpriteTest.cpp
+++ b/tests/cpp-tests/Source/UITest/CocoStudioGUITest/UIScale9SpriteTest.cpp
@@ -990,7 +990,7 @@ bool UIS9BatchTest::init()
         addSpriteButton->setPosition(Vec2(winSize.width / 2 - 50, winSize.height - 100));
         addSpriteButton->setTitleText("Add Normal Sprite");
         std::srand((unsigned)time(nullptr));
-        addSpriteButton->addClickEventListener([=](Object*) {
+        addSpriteButton->addClickEventListener([this, spriteFrameNameArray, winSize](Object*) {
             auto spriteFrameName = spriteFrameNameArray[rand() % 2];
             auto sprite          = Sprite::createWithSpriteFrameName(spriteFrameName);
             sprite->setPosition(Vec2(rand() % (int)winSize.width + 50.0f, winSize.height / 2));
@@ -1002,7 +1002,7 @@ bool UIS9BatchTest::init()
             ui::Button::create("cocosui/animationbuttonnormal.png", "cocosui/animationbuttonpressed.png");
         addSliceSpriteButton->setPosition(Vec2(winSize.width / 2 + 50, winSize.height - 100));
         addSliceSpriteButton->setTitleText("Add Slice Sprite");
-        addSliceSpriteButton->addClickEventListener([=](Object*) {
+        addSliceSpriteButton->addClickEventListener([this, spriteFrameNameArray, winSize, preferedSize](Object*) {
             int random           = rand() % 2;
             auto spriteFrameName = spriteFrameNameArray[random];
             auto sprite          = ui::Scale9Sprite::createWithSpriteFrameName(spriteFrameName);
diff --git a/tests/cpp-tests/Source/UITest/CocoStudioGUITest/UIWebViewTest/UIWebViewTest.cpp b/tests/cpp-tests/Source/UITest/CocoStudioGUITest/UIWebViewTest/UIWebViewTest.cpp
index 6c153265b370..f2f77009f859 100644
--- a/tests/cpp-tests/Source/UITest/CocoStudioGUITest/UIWebViewTest/UIWebViewTest.cpp
+++ b/tests/cpp-tests/Source/UITest/CocoStudioGUITest/UIWebViewTest/UIWebViewTest.cpp
@@ -71,7 +71,7 @@ bool WebViewTest::init()
         resetBtn->setTitleText("Visit URL");
         resetBtn->setPosition(Vec2(winSize / 2) + Vec2(50, _webView->getContentSize().height / 2 +
                                                                resetBtn->getContentSize().height / 2 + 10));
-        resetBtn->addClickEventListener([=](Object*) {
+        resetBtn->addClickEventListener([this, urlTextField](Object*) {
             if (urlTextField->getString().size() != 0)
             {
                 _webView->loadURL(std::string("https://").append(urlTextField->getString()));
@@ -84,7 +84,7 @@ bool WebViewTest::init()
         reloadBtn->setPosition(
             Vec2(winSize / 2) +
             Vec2(_webView->getContentSize().width / 2 + reloadBtn->getContentSize().width / 2 + 10, 50));
-        reloadBtn->addClickEventListener([=](Object*) { _webView->reload(); });
+        reloadBtn->addClickEventListener([this, reloadBtn](Object*) { _webView->reload(); });
         this->addChild(reloadBtn);
 
         Button* forwardBtn = Button::create("cocosui/animationbuttonnormal.png", "cocosui/animationbuttonpressed.png");
@@ -92,7 +92,7 @@ bool WebViewTest::init()
         forwardBtn->setPosition(
             Vec2(winSize / 2) +
             Vec2(_webView->getContentSize().width / 2 + forwardBtn->getContentSize().width / 2 + 10, 0));
-        forwardBtn->addClickEventListener([=](Object*) { _webView->goForward(); });
+        forwardBtn->addClickEventListener([this](Object*) { _webView->goForward(); });
         this->addChild(forwardBtn);
 
         Button* backBtn = Button::create("cocosui/animationbuttonnormal.png", "cocosui/animationbuttonpressed.png");
@@ -100,7 +100,7 @@ bool WebViewTest::init()
         backBtn->setPosition(
             Vec2(winSize / 2) +
             Vec2(_webView->getContentSize().width / 2 + backBtn->getContentSize().width / 2 + 10, -50));
-        backBtn->addClickEventListener([=](Object*) { _webView->goBack(); });
+        backBtn->addClickEventListener([this](Object*) { _webView->goBack(); });
         this->addChild(backBtn);
 
         Button* loadFileBtn = Button::create("cocosui/animationbuttonnormal.png", "cocosui/animationbuttonpressed.png");
@@ -108,7 +108,7 @@ bool WebViewTest::init()
         loadFileBtn->setPosition(
             Vec2(winSize / 2) -
             Vec2(_webView->getContentSize().width / 2 + loadFileBtn->getContentSize().width / 2 + 10, 50));
-        loadFileBtn->addClickEventListener([=](Object*) { _webView->loadFile("Test.html"); });
+        loadFileBtn->addClickEventListener([this](Object*) { _webView->loadFile("Test.html"); });
         this->addChild(loadFileBtn);
 
         Button* loadHTMLBtn = Button::create("cocosui/animationbuttonnormal.png", "cocosui/animationbuttonpressed.png");
@@ -116,7 +116,7 @@ bool WebViewTest::init()
         loadHTMLBtn->setPosition(
             Vec2(winSize / 2) -
             Vec2(_webView->getContentSize().width / 2 + loadHTMLBtn->getContentSize().width / 2 + 10, 0));
-        loadHTMLBtn->addClickEventListener([=](Object*) {
+        loadHTMLBtn->addClickEventListener([this](Object*) {
             _webView->loadHTMLString("<body style=\"font-size:50px;\">Hello World <img src=\"Icon.png\"/> </body>",
                                      "Images/");
         });
@@ -127,7 +127,7 @@ bool WebViewTest::init()
         evalJsBtn->setPosition(
             Vec2(winSize / 2) -
             Vec2(_webView->getContentSize().width / 2 + evalJsBtn->getContentSize().width / 2 + 10, -50));
-        evalJsBtn->addClickEventListener([=](Object*) { _webView->evaluateJS("alert(\"hello\")"); });
+        evalJsBtn->addClickEventListener([this](Object*) { _webView->evaluateJS("alert(\"hello\")"); });
         evalJsBtn->setName("evalJs");
         this->addChild(evalJsBtn);
 
@@ -136,7 +136,7 @@ bool WebViewTest::init()
         opacityBtn->setPosition(
             Vec2(winSize / 2) -
             Vec2(_webView->getContentSize().width / 2 + opacityBtn->getContentSize().width / 2 + 10, 100));
-        opacityBtn->addClickEventListener([=](Object*) {
+        opacityBtn->addClickEventListener([this, opacityBtn](Object*) {
             auto currentOpacity = _webView->getOpacityWebView();
             if (currentOpacity == 1.f)
             {
@@ -163,7 +163,7 @@ bool WebViewTest::init()
         transparentBgBtn->setPosition(
             Vec2(winSize / 2) +
             Vec2(_webView->getContentSize().width / 2 + transparentBgBtn->getContentSize().width / 2 + 10, -100));
-        transparentBgBtn->addClickEventListener([=](Object*) { _webView->setBackgroundTransparent(); });
+        transparentBgBtn->addClickEventListener([this](Object*) { _webView->setBackgroundTransparent(); });
         transparentBgBtn->setName("Transparent");
         this->addChild(transparentBgBtn);