ios UIAlertView 按钮操作

UIAlertView Button Action

提问by sohel14_cse_ju

How can I use two actions for UIButtonclick?I have a UIAlertView showing with two button.Play again and exit.Now i want to execute two method in the click event of these buttons.

如何使用两个操作进行UIButton点击？我有一个 UIAlertView 显示两个按钮。再次播放并退出。现在我想在这些按钮的点击事件中执行两个方法。

回答by Krishnabhadra

UPDATE - May 2016

更新 - 2016 年 5 月

UIAlertView is deprecated. You can now use UIAlertController as explained here.

UIAlertView 已弃用。您现在可以按照此处的说明使用 UIAlertController 。

Old Answer with UIAlertView

UIAlertView 的旧答案

1. You can create a UIAlertView like this

   UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Really reset?" 
                             message:@"Do you really want to reset this game?" 
                             delegate:self 
                             cancelButtonTitle:@"Cancel" 
                             otherButtonTitles:@"reset", nil];
   
   [alert show];
   

2. To handle AlertView button click, you have to conform toUIAlertViewDelegateprotocol.

   @interface YourViewController:UIViewController<UIAlertViewDelegate>{
     .......
     .......
   }
   

3. Then implementUIAlertViewDelegateprotocol methods,

   - (void)alertView:(UIAlertView *)alertView 
                      clickedButtonAtIndex:(NSInteger)buttonIndex{
       if (buttonIndex == [alertView cancelButtonIndex]){
         //cancel clicked ...do your action
       }else{
         //reset clicked
       }
   }
   

1. 你可以像这样创建一个 UIAlertView

   UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"Really reset?" 
                             message:@"Do you really want to reset this game?" 
                             delegate:self 
                             cancelButtonTitle:@"Cancel" 
                             otherButtonTitles:@"reset", nil];
   
   [alert show];
   

2. 要处理 AlertView 按钮单击，您必须 符合UIAlertViewDelegate协议。

   @interface YourViewController:UIViewController<UIAlertViewDelegate>{
     .......
     .......
   }
   

3. 然后实现UIAlertViewDelegate协议方法，

   - (void)alertView:(UIAlertView *)alertView 
                      clickedButtonAtIndex:(NSInteger)buttonIndex{
       if (buttonIndex == [alertView cancelButtonIndex]){
         //cancel clicked ...do your action
       }else{
         //reset clicked
       }
   }