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NSArray windows = [[UIApplication sharedApplication] windows]; for(UIWindow *window in windows) { NSLog(@"window: %@",window.description); if(window.rootViewController == nil){ UIViewController vc = [[UIViewController alloc]initWithNibName:nil bundle:nil]; window.rootViewController = vc; }
我得代码
同求，8.4没问题，9.0就报错exception:Application windows are expected to have a root view controller at the end of application launch
你确定你的 self._tabBarController 不是 nil ？
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NSArray windows = [[UIApplication sharedApplication] windows];
for(UIWindow *window in windows)
{
NSLog(@"window: %@",window.description);
if(window.rootViewController == nil)
{
UIViewController vc = [[UIViewController alloc]initWithNibName:nil bundle:nil]; window.rootViewController = vc;
}
我得代码
同求，8.4没问题，9.0就报错exception:Application windows are expected to have a root view controller at the end of application launch
你确定你的 self._tabBarController 不是 nil ？