在一段时间间隔后关闭ViewController？

Question

有没有办法，我可以在5秒钟后呈现或解散我的ViewController？也许就像...如果用户在5秒钟后按下按钮，则会出现新视图。

任何解决方案或建议？很抱歉，我没有在网上找到解决方案。

我的代码不工作：

-(IBAction)lol:(id)sender { 

    [self performSelector:@selector(dissMissviewController) withObject:self afterDelay:3]; 
} 

-(void)dissMissViewController{ 

    [self dismissModalViewControllerAnimated:YES]; 
} 

感谢。

Answer 1

您可以使用下面的..

//for dismissing the ViewControler on clicking button just use below piece of code. 

[self performSelector:@selector(dismissViewController) withObject:self afterDelay:5]; 

//dismissviewController is the method which has the code for dismissing the viewController. 

//and can follow the same for showing the viewController. 

- (void)dismissViewController 
{ 
//if you are pushing your viewControler, then use below single line code 
[self.navigationController popViewControllerAnimated:YES]; 
//if you are presnting ViewController modally. then use below code 
[self dismissModalViewControllerAnimated:YES]; 
} 

我希望它可以清除你...！

Answer 2

正如你想，当按下按钮一个新的viewController提出或5秒的延迟之后被解雇，尝试实现下面的代码

 -(IBAction)btnpressed:(id)sender 
     { 
      [self performSelector:@selector(dismissVC) withObject:self afterDelay:5.0]; 

      //dismissVC is the method which has the code for dismissing the viewController. same is the case for presenting a ViewController by passing a selector which has the code for presenting the viewController 

     } 

希望这有助于。