当应用程序在没有任何用户交互的情况下运行时，这就是 iOS7 模拟器的样子（我也没有运行我的任何代码，只有样板 Cocos2D）：
5.0->6.1 没有这样的问题。产生此问题的代码是 Cocos2D 样板代码，我试图通过注释将其最小化，这是来自 App 委托的最少代码：
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
// Create the main window
window_ = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
// CCGLView creation
CCGLView *glView = [CCGLView viewWithFrame:[window_ bounds]
pixelFormat:kEAGLColorFormatRGB565
depthFormat:0
preserveBackbuffer:NO
sharegroup:nil
multiSampling:NO
numberOfSamples:0];
director_ = (CCDirectorIOS*) [CCDirector sharedDirector];
director_.wantsFullScreenLayout = YES;
// Display FSP and SPF
[director_ setDisplayStats:YES];
// set FPS at 60
[director_ setAnimationInterval:1.0/60];
// attach the openglView to the director
[director_ setView:glView];
[glView setMultipleTouchEnabled:YES];
// 2D projection
[director_ setProjection:kCCDirectorProjection2D];
// [director setProjection:kCCDirectorProjection3D];
// Enables High Res mode (Retina Display) on iPhone 4 and maintains low res on all other devices
if( ! [director_ enableRetinaDisplay:YES] )
CCLOG(@"Retina Display Not supported");
// Default texture format for PNG/BMP/TIFF/JPEG/GIF images
// It can be RGBA8888, RGBA4444, RGB5_A1, RGB565
// You can change this setting at any time.
[CCTexture2D setDefaultAlphaPixelFormat:kCCTexture2DPixelFormat_RGBA8888];
// If the 1st suffix is not found and if fallback is enabled then fallback suffixes are going to searched. If none is found, it will try with the name without suffix.
// On iPad HD : "-ipadhd", "-ipad", "-hd"
// On iPad : "-ipad", "-hd"
// On iPhone HD: "-hd"
CCFileUtils *sharedFileUtils = [CCFileUtils sharedFileUtils];
[sharedFileUtils setEnableFallbackSuffixes:NO]; // Default: NO. No fallback suffixes are going to be used
[sharedFileUtils setiPhoneRetinaDisplaySuffix:@"-hd"]; // Default on iPhone RetinaDisplay is "-hd"
[sharedFileUtils setiPadSuffix:@"-ipad"]; // Default on iPad is "ipad"
[sharedFileUtils setiPadRetinaDisplaySuffix:@"-ipadhd"]; // Default on iPad RetinaDisplay is "-ipadhd"
// Assume that PVR images have premultiplied alpha
[CCTexture2D PVRImagesHavePremultipliedAlpha:YES];
// Create a Navigation Controller with the Director
navController_ = [[MyNavigationController alloc] initWithRootViewController:director_];
navController_.navigationBarHidden = YES;
// for rotation and other messages
[director_ setDelegate:navController_];
// set the Navigation Controller as the root view controller
[window_ setRootViewController:navController_];
// make main window visible
[window_ makeKeyAndVisible];
return YES;
}
CCDirector我还从启动中注释掉directorDidReshapeProjection以消除我自己的代码。因此，当应用程序现在启动时，我只能在黑屏上看到帧速率。
我从 Instruments 看到的结果相同。
不幸的是无法在设备上测试 iOS 7，但我不希望模拟器会那样做。
更新：
我做了 2 个标记生成，结果如下。
所有项目都是那些 64 字节的分配。我不知道它们是什么类型的。值得一提的是，我使用的是最新的稳定版 Cocos2D 2.1。
更新#2：
64字节分配的调用栈。
