我想在应用程序收到的每个推送消息之后呈现一个modalviewcontroller:"应用程序:(UIApplication*)应用程序didReceiveRemoteNotification:(NSDictionary*)userInfo"
我像这样呈现viewcontroller:
ReleaseViewController *viewController = [[ReleaseViewController alloc] init];
UINavigationController *navController = [[UINavigationController alloc] initWithRootViewController:viewController];
[self.window.rootViewController presentModalViewController:navController animated:YES];
所以当另一个推送消息到来并且旧的ModalViewController仍然是可见的时,我想在旧的上呈现一个新的modalviewcontroller.但它不起作用.没有发生任何事情,控制台只是说(我认为这是iOS 6 Beta的调试消息):
Warning: Attempt to present <UINavigationController: 0x1dde6c30> on <UINavigationController: 0x1dd73c00> whose view is not in the window hierarchy!
我究竟做错了什么？
PS:我不想解雇旧的ViewController,我希望它们能够堆叠.
谢谢!