给UIAlertView按钮添加点击方法

- (void)viewDidLoad
{
    [super viewDidLoad];

    //初始化AlertView
    UIAlertView *alert = [[UIAlertView alloc] initWithTitle:@"AlertViewTest"
                                                    message:@"message"
                                                   delegate:self
                                          cancelButtonTitle:@"取消"
                                          otherButtonTitles:@"确定",nil];


    //显示AlertView
    [alert show];
}



- (void)alertView:(UIAlertView *)alertView didDismissWithButtonIndex:(NSInteger)buttonIndex;{
    // 第二个按钮
    if (buttonIndex == 1)
    {
        // 修改背景色 看下效果
        self.view.backgroundColor = [UIColor redColor];
        //do something here...
    }
}

别忘了代理