iOS中UIAlertView警告框组件的使用教程

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UIAlertView*alert = [[UIAlertView alloc]initWithTitle:@"提示"

 

                                                  message:@"请选择一个按钮："

                                                  delegate:nil  

                                                  cancelButtonTitle:@"取消"

                                                  otherButtonTitles:@"按钮一", @"按钮二", @"按钮三",nil]; 

[alert show]; 

[alert release]; 

 

3. 如何判断用户点击的按钮
UIAlertView有一个委托(代理)UIAlertViewDelegate ,继承该委托来实现点击事件

 头文件：

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@interface MyAlertViewViewController : UIViewController {

 

}

(void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex;
-(IBAction) buttonPressed;

@end

源文件：