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[英]Why modal view's (presented by detail view controller) presenting view controller is split view controller?
[英]How to start an iOS app with a modal view controller already presented without the user being able to see the presenting view?
我已经尝试了很多组合来做这个从app委托,呈现视图控制器的viewDidLoad
,有和没有延迟,有和没有动画。
但是用户可以暂时看到呈现视图控制器,或者模式没有呈现。
怎么能实现这一目标?
使用storyboard尝试下面的代码,应用程序以模态视图控制器启动:
AppDelegate.m
- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
[self.window makeKeyAndVisible];
[self.window.rootViewController performSegueWithIdentifier:@"modalSegue" sender:self];
return YES;
}
从开始视图控制器到模态视图控制器的配置:
如果你的inititalViewController上面有你的启动图像的图片怎么办?
@property (nonatomic, weak) IBOutlet UIImageView *launchImage;
在视图出现之前设置启动图像。
- (void)viewWillAppear
{
self.launchImage.image = [self launchImage];
}
然后,当您呈现模态视图控制器时,删除启动图像。
[self presentViewController:vc animated:NO completion:^{
[self.launchImage removeFromSuperview];
}];
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