android & ios screen size change support

cocos/2d/platform/android/CCApplication.cpp

@@ -128,4 +128,8 @@ Application::Platform Application::getTargetPlatform()
     return Platform::OS_ANDROID;
 }
 
+void Application::applicationScreenSizeChanged(int newWidth, int newHeight) {
+
+}
+
 NS_CC_END

cocos/2d/platform/android/CCApplication.h

@@ -50,6 +50,13 @@ public:
      */
     virtual Platform getTargetPlatform();
 
+	/**
+	@brief  This function will be called when the application screen size is changed.
+	@param new width
+	@param new height
+	*/
+	virtual void applicationScreenSizeChanged(int newWidth, int newHeight);
+
 protected:
     static Application * sm_pSharedApplication;
 };

cocos/2d/platform/android/nativeactivity.cpp

@@ -12,6 +12,7 @@
 #include <android/configuration.h>
 
 #include <pthread.h>
+#include <chrono>
 
 #include "CCDirector.h"
 #include "CCApplication.h"
@@ -69,6 +70,9 @@ struct engine {
     struct saved_state state;
 };
 
+static bool isContentRectChanged = false;
+static std::chrono::steady_clock::time_point timeRectChanged;
+
 static struct engine engine;
 
 static char* editboxText = NULL;
@@ -556,6 +560,11 @@ static void engine_handle_cmd(struct android_app* app, int32_t cmd) {
     }
 }
 
+static void onContentRectChanged(ANativeActivity* activity, const ARect* rect) {
+	timeRectChanged = std::chrono::steady_clock::now();
+	isContentRectChanged = true;
+}
+
 /**
  * This is the main entry point of a native application that is using
  * android_native_app_glue.  It runs in its own thread, with its own
@@ -584,6 +593,9 @@ void android_main(struct android_app* state) {
         engine.state = *(struct saved_state*)state->savedState;
     }
 
+	// Screen size change support
+	state->activity->callbacks->onContentRectChanged = onContentRectChanged;
+
     // loop waiting for stuff to do.
 
     while (1) {
@@ -671,5 +683,20 @@ void android_main(struct android_app* state) {
         } else {
             LOG_RENDER_DEBUG("android_main : !engine.animating");
         }
+
+		// Check if screen size changed
+		if (isContentRectChanged) {
+			std::chrono::duration<int, std::milli> duration(
+					std::chrono::duration_cast<std::chrono::duration<int, std::milli>>(std::chrono::steady_clock::now() - timeRectChanged));
+
+			// Wait about 30 ms to get new width and height. Without waiting we can get old values sometime
+			if (duration.count() > 30) {
+				isContentRectChanged = false;
+
+				int32_t newWidth = ANativeWindow_getWidth(engine.app->window);
+				int32_t newHeight = ANativeWindow_getHeight(engine.app->window);
+				cocos2d::Application::getInstance()->applicationScreenSizeChanged(newWidth, newHeight);
+			}
+		}
     }
 }

cocos/2d/platform/ios/CCApplication.h

@@ -76,6 +76,13 @@ public:
      */
     virtual Platform getTargetPlatform();
 
+	/**
+	@brief  This function will be called when the application screen size is changed.
+	@param new width
+	@param new height
+	*/
+	virtual void applicationScreenSizeChanged(int newWidth, int newHeight);
+
 protected:
     static Application * sm_pSharedApplication;
 };

cocos/2d/platform/ios/CCApplication.mm

@@ -146,4 +146,8 @@ Application::Platform Application::getTargetPlatform()
     }
 }
 
+void Application::applicationScreenSizeChanged(int newWidth, int newHeight) {
+
+}
+
 NS_CC_END

template/multi-platform-cpp/proj.ios_mac/ios/RootViewController.mm

@@ -1,5 +1,6 @@
 #import "RootViewController.h"
-
+#import "cocos2d.h"
+#import "EAGLView.h"
 
 @implementation RootViewController
 
@@ -43,6 +44,14 @@
     return YES;
 }
 
+- (void)didRotateFromInterfaceOrientation:(UIInterfaceOrientation)fromInterfaceOrientation {
+	[super didRotateFromInterfaceOrientation:fromInterfaceOrientation];
+
+	CGSize s = CGSizeMake([[CCEAGLView sharedEGLView] getWidth], [[CCEAGLView sharedEGLView] getHeight]);
+
+	cocos2d::Application::getInstance()->applicationScreenSizeChanged((int) s.width, (int) s.height);
+}
+
 //fix not hide status on ios7
 - (BOOL)prefersStatusBarHidden
 {

template/multi-platform-js/proj.ios_mac/ios/RootViewController.mm

@@ -1,6 +1,6 @@
-
 #import "RootViewController.h"
-
+#import "cocos2d.h"
+#import "EAGLView.h"
 
 @implementation RootViewController
 
@@ -44,6 +44,14 @@
     return YES;
 }
 
+- (void)didRotateFromInterfaceOrientation:(UIInterfaceOrientation)fromInterfaceOrientation {
+	[super didRotateFromInterfaceOrientation:fromInterfaceOrientation];
+
+	CGSize s = CGSizeMake([[CCEAGLView sharedEGLView] getWidth], [[CCEAGLView sharedEGLView] getHeight]);
+
+	cocos2d::Application::getInstance()->applicationScreenSizeChanged((int) s.width, (int) s.height);
+}
+
 //fix not hide status on ios7
 - (BOOL)prefersStatusBarHidden
 {

template/multi-platform-lua/proj.ios_mac/ios/RootViewController.mm

@@ -24,7 +24,8 @@
  ****************************************************************************/
 
 #import "RootViewController.h"
-
+#import "cocos2d.h"
+#import "EAGLView.h"
 
 @implementation RootViewController
 
@@ -68,6 +69,14 @@
     return YES;
 }
 
+- (void)didRotateFromInterfaceOrientation:(UIInterfaceOrientation)fromInterfaceOrientation {
+	[super didRotateFromInterfaceOrientation:fromInterfaceOrientation];
+
+	CGSize s = CGSizeMake([[CCEAGLView sharedEGLView] getWidth], [[CCEAGLView sharedEGLView] getHeight]);
+
+	cocos2d::Application::getInstance()->applicationScreenSizeChanged((int) s.width, (int) s.height);
+}
+
 //fix not hide status on ios7
 - (BOOL)prefersStatusBarHidden
 {