ios - 如何添加在自定义时间后消失的自定义启动画面以允许加载 web 视图。目标-c

Question

我正在使用此代码显示启动画面，但我看到的唯一内容是黑色。

UIStoryboard *storyBoard = [UIStoryboard storyboardWithName:@"MainStoryboard_iPad" bundle:nil];
SplashViewController *splash = [storyBoard instantiateViewControllerWithIdentifier:@"splash"];
splash.modalTransitionStyle = UIModalTransitionStyleCrossDissolve;
splash.modalPresentationStyle = UIModalPresentationFullScreen;
[self.window addSubview:splash.view];

启动画面的视图控制器正在加载，因为正在调用断点，但我看不到视图控制器，我只看到黑色。

Answer 1

我看到您正在使用情节提要，所以您可以这样做：

- Add view controller (VC0) to storyboard
- Set correct orientation on VC0 - your app orientation
- Add container view on VC0 (full size view)
- Add splash screen image on VC0 (full size view)
- Create UIViewController subclass - call it for example CustomSplashDisplay
- create UIImageView IBOutlet - for example vwImage
- override viewDidLoad like:

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view.

    [self performSelector:@selector(HideImage) withObject:nil afterDelay:kSplashScreenDuration];
}

-(void)HideImage
{
    [vwImage setHidden:YES];
    [self.view sendSubviewToBack:vwImage];
}

在故事板中

- Set VC0 as initial view controller
- Set its class to CustomSplashDisplay
- connect UIImage outlet
- embed previous initial view controller in container view

运行一个给你...

Answer 2

我认为您可以使用它来呈现启动视图控制器，而不是添加splash.view为子视图。windowpresentViewController:animated:completion: