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ios ViewController 页面跳转

从一个Controller跳转到另一个Controller时,一般有以下2种: 
1、利用UINavigationController,调用pushViewController,进行跳转;这种采用压栈和出栈的方式,进行Controller的管理。调用popViewControllerAnimated方法可以返回。 

    PickImageViewController *ickImageViewController = [[PickImageViewController alloc] init]; 
    [self.navigationController pushViewController: ickImageViewController animated:true]; 
    [ickImageViewController release]; 


2、利用UIViewController自身的presentModalViewController,进行跳转;调用dismissModalViewControllerAnimated方法可以返回。 
    PickImageViewController *ickImageViewController = [[PickImageViewController alloc] init]; 
    [self presentModalViewController:ickImageViewController animated:YES]; 
  //返回 
    [self dismissModalViewControllerAnimated:YES];

3、用StoryBoard的Segue直接可视化连接不同的ViewController”,并且将segue的id叫做“welcome“。然后在代码里写以下的代码

[self performSegueWithIdentifier:@"welcome" sender:self];

备注:
  方法1和2适用于旧版的nib文件页面
  方法3使用于storyboard