在 Open GL ES 视图上覆盖标签
我试图在我的 Open GL ES 视图上覆盖一个标签（以及将来的 UI 图像），但什么也没有看到，知道为什么吗？用户交互和多点触控已勾选。我很确定它与此 applicationDidFinishLaunching 调用有关，但不确定它可能是什么：
- (void)applicationDidFinishLaunching:(UIApplication*)application
{
CGRect rect = [[UIScreen mainScreen] bounds];
GLViewController *theController = [[GLViewController alloc] init];
self.controller = theController;
[theController release];
GLView *glView = [[GLView alloc] initWithFrame:rect];
[window addSubview:glView];
glView.controller = controller;
glView.animationInterval = 1.0 / kRenderingFrequency;
[glView startAnimation];
[glView release];
[window makeKeyAndVisible];
}
Im trying to overlay a Label (and in the future a UI Image) over my Open GL ES View but nothing is being seen, any idea why? User Interaction and Multi Touch are checked off. Im pretty sure it has something to do with this applicationDidFinishLaunching call but not sure what it could be:
- (void)applicationDidFinishLaunching:(UIApplication*)application
{
CGRect rect = [[UIScreen mainScreen] bounds];
GLViewController *theController = [[GLViewController alloc] init];
self.controller = theController;
[theController release];
GLView *glView = [[GLView alloc] initWithFrame:rect];
[window addSubview:glView];
glView.controller = controller;
glView.animationInterval = 1.0 / kRenderingFrequency;
[glView startAnimation];
[glView release];
[window makeKeyAndVisible];
}
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您对 addSubview: 的调用将 GLView 实例置于层次结构中任何其他视图的前面。请使用 insertSubview: 方法之一，或者将 GLView 添加到窗口后将其发送到后面。
Your call to addSubview: puts the GLView instance in front of any other views in the hierarchy. Use one of the insertSubview: methods instead or send your GLView to the back after adding it to the window.