看不慣黑邊又不想拉伸的解決方案，很多游戲也這么處理，直接用邊框填充黑邊。
// Set RootViewController to window
if ( [[UIDevice currentDevice].systemVersion floatValue] < 6.0)
{
EAGLView *__glView = [EAGLView viewWithFrame: [window bounds]
pixelFormat: kEAGLColorFormatRGBA8
depthFormat: GL_DEPTH_COMPONENT16
preserveBackbuffer: NO
sharegroup:nil
multiSampling:NO
numberOfSamples:0];
UIView* view = [[UIView alloc] initWithFrame:[window bounds]];
[view setBackgroundColor:[UIColor blueColor]];
// Use RootViewController manage EAGLView
viewController = [[[RootViewController alloc] initWithNibName:nil bundle:nil] autorelease];
viewController.wantsFullScreenLayout = YES;
viewController.view = __glView;
// warning: addSubView doesn't work on iOS6
[window addSubview: viewController.view];
s_rootView = __glView;
s_rootViewController = viewController;
// Set RootViewController to window
[window makeKeyAndVisible];
[[UIApplication sharedApplication] setStatusBarHidden: YES];
[window setRootViewController:viewController];
}
else
{
bool i5 = false;
CGRect r = [window bounds];
float f = 1.0f * r.size.height / r.size.width - 960.0f / 640;
//printf("---- %f,%f,%f", r.size.height, r.size.width, f);
if (!(f < 0.001 && f > -0.001))
{
i5 = true;
}
EAGLView *__glView = [EAGLView viewWithFrame: CGRectMake(0, i5 ? 44 : 0, 320, 480)//[window bounds]
pixelFormat: kEAGLColorFormatRGBA8
depthFormat: GL_DEPTH_COMPONENT16
preserveBackbuffer: NO
sharegroup:nil
multiSampling:NO
numberOfSamples:0];
UIView* rootView = [[[UIView alloc] initWithFrame:[window bounds]] autorelease];
[rootView addSubview:__glView];
if (i5)
{
// top
UIImageView* topView = [[[UIImageView alloc] initWithImage:[UIImage imageNamed:@"top.png"]] autorelease];
[rootView addSubview:topView];
[topView setFrame:CGRectMake(0, 0, 320, 44)];
// bottom
UIImageView* bottomView = [[[UIImageView alloc] initWithImage:[UIImage imageNamed:@"bottom.png"]] autorelease];
[rootView addSubview:bottomView];
[bottomView setFrame:CGRectMake(0, 524, 320, 44)];
s_sharedApplication.setKeyboardOffsetY(44 * 2);
}
// Use RootViewController manage EAGLView
viewController = [[[RootViewController alloc] initWithNibName:nil bundle:nil] autorelease];
viewController.wantsFullScreenLayout = YES;
viewController.view = rootView;
// use this method on ios6
[window setRootViewController:viewController];
s_rootView = rootView;
s_rootViewController = viewController;
// Set RootViewController to window
[window makeKeyAndVisible];
[[UIApplication sharedApplication] setStatusBarHidden: YES];
}