我仅在 iOS9 中收到以下错误。
这是我的代码：-
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
if ([[NSUserDefaults standardUserDefaults] objectForKey:@"login_dict"])
{
if ([[NSUserDefaults standardUserDefaults] objectForKey:@"isLogout"] == nil || [[[NSUserDefaults standardUserDefaults] objectForKey:@"isLogout"] integerValue]== 0)
{
self.loginDict = [[BaseViewController sharedInstance] removeNullFromDictionary:[[NSUserDefaults standardUserDefaults] objectForKey:@"login_dict"]];
self.firstViewController = [[HomeViewController alloc] initWithNibName:@"HomeViewController" bundle:nil];
}
if ([[[NSUserDefaults standardUserDefaults] objectForKey:@"isLogout"] integerValue]== 1)
{
self.firstViewController = [[WelcomeViewController alloc] initWithNibName:@"WelcomeViewController" bundle:nil];
}
NSLog(@"Userinfo = %@",self.loginDict);
}
else
{
self.firstViewController = [[WelcomeViewController alloc] initWithNibName:@"WelcomeViewController" bundle:nil];
}
self.window.backgroundColor = [UIColor whiteColor];
[self.window makeKeyAndVisible];
self.window = [[UIWindow alloc] initWithFrame:[UIScreen mainScreen].bounds];
self.navigationController = [[BufferedNavigationController alloc] initWithRootViewController:self.firstViewController];
//[window makeKeyAndVisible];
[self.window setRootViewController:self.navigationController];
}
注意：此代码在 Xcode 6.4 和 iOS8 中运行良好。
Assertion failure in -[UIApplication _runWithMainScene:transitionContext:completion:], /BuildRoot/Library/Caches/com.apple.xbs/Sources/UIKit_Sim/UIKit-3505.16/UIApplication.m:3294
我必须从应用程序 didFinishLaunchingWithOptions 中删除这一行：
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
这对我来说解决了。
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