选择选择器时如何显示另一个（更改）ViewController

Question

当我选择一个选择器时如何显示另一个（更改）ViewController。

我有一个选择器（简单、中级、困难），当我选择一个选择器并单击一个按钮时，我想转到特定的视图控制器（我有 3 个视图控制器（一个用于简单，一个用于中间另一个是硬的） 请帮帮我

Answer 1

单击按钮时，您可以呈现或推送视图控制器。如果您已将其与 segue 连接，则可以执行以下操作：

if(easySelected)
   [self performSegueWithIdentifier:@"easyOne" sender:self];
else if
   ...

如果你有导航控制器或想要展示它，你可以这样做：

UIStoryboard *story = [UIStoryboard storyboardWithName:@"Main" bundle:[NSBundle mainBundle]];
EasyViewConroller *cont = [story instantiateInitialViewController];
// or EasyViewConroller *cont = [story instantiateViewControllerWithIdentifier:@"YourIdent"];
// in former solution you have to set that identifier in the code/storyboard 

// navigation/push
self.navigationController pushViewController:cont animated:YES];

// if you want to present it
[self presentViewController:cont animated:YES completion:nil];

编辑：

if(easySelected){
   self.performSegueWithIdentifier("easyOne" sender:self)
{
else if{
   ...
}

//If you have navigation controller or want to present it you can do:
var tempStory = UIStoryboard(name: "Main", bundle: NSBundle.mainBundle())
var tempVC = tempStory.instantiateInitialViewController() as! EasyViewController

//present
self.presentViewController(tempVC, animated: true)

//push
self.navigationController?.pushViewController(tempVC, animated: true)