iOS 5 升级需要 rootViewController
我为 iOS 4 创建的应用程序在 iOS 5 上运行后无法工作。我收到以下错误：
“应用程序预计在应用程序启动结束时具有根视图控制器”
如何更新以下代码来修复此问题错误？
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
UINavigationController *navcon = [[UINavigationController alloc] init]
TSViewController *pvc = [[TSViewController alloc] init];
[navcon pushViewController:pvc animated:NO];
[navcon setNavigationBarHidden:YES animated:NO];
[pvc release];
[window addSubview:navcon.view];
return YES;
}
The App I created for iOS 4 does not work once run on iOS 5. I am receiving the following error:
"Applications are expected to have a root view controller at the end of application launch"
How can I update the following code to fix this error?
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
UINavigationController *navcon = [[UINavigationController alloc] init]
TSViewController *pvc = [[TSViewController alloc] init];
[navcon pushViewController:pvc animated:NO];
[navcon setNavigationBarHidden:YES animated:NO];
[pvc release];
[window addSubview:navcon.view];
return YES;
}
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[window setRootViewController:navcon];而不是addSubview。[window setRootViewController:navcon];instead ofaddSubview.