objective-c – Xcode 6.1：快照未呈现的视图

我正在为我的示例项目使用storyboard.该体系结构是Login View Controller和Home PageView控制器.用户单击Home PageView控制器中的按钮以启动本地通知.

-(IBACtion)startlocalnotification {  // Bind this method to UIButton action
    NSLog(@"startlocalnotification");

    UIlocalnotification *notification = [[UIlocalnotification alloc] init];
    notification.fireDate = [NSDate dateWithTimeIntervalSinceNow:7];
    notification.alertBody = @"This is local notification!";
    notification.timeZone = [NSTimeZone defaultTimeZone];
    notification.soundName = UIlocalnotificationDefaultSoundName;
    notification.applicationIconBadgenumber = 10;

    [[UIApplication sharedApplication] schedulelocalnotification:notification];
}@H_404_3@ 
 
此代码位于AppDelegate文件中：
 
  
 
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
    // Override point for customization after application launch.

    if ([UIApplication instancesRespondToSELEctor:@SELEctor(registerUserNotificationSetTings:)]){

        [application registerUserNotificationSetTings:[UIUserNotificationSetTings setTingsForTypes:UIUserNotificationTypeAlert|UIUserNotificationTypeBadge|UIUserNotificationTypeSound categories:nil]];
    }

    [launchOptions valueForKey:UIApplicationLaunchOptionslocalnotificationKey];
    // Override point for customization after application launch.

    return YES;
}

- (void)applicationDidBecomeActive:(UIApplication *)application {
 [UIApplication sharedApplication].applicationIconBadgenumber = 0;
     NSLog(@"didReceivelocalnotification");
}@H_404_3@ 
 
现在将应用程序推送到后台状态后,我在控制台中收到消息,但本地通知正常工作正常.
 
 
快照未呈现的视图会导致空快照.确保在屏幕更新后快照或快照之前,您的视图至少呈现过一次.
 
 
这条消息与什么有关？