UIAlertView：点击警报框外部时关闭 UIAlertView [重复]

Posted 2023-02-23

【中文标题】UIAlertView：点击警报框外部时关闭 UIAlertView [重复]

【英文标题】：UIAlertView:Dismiss UIAlertView on click of out side the alert box [duplicate]

【发布时间】：2013-03-21 05:57:38

【问题描述】：

您好，我是 Xcode 的新手，n Objective-C 在这方面需要帮助。 我有一个无按钮 UIAlertView，它会在点击自身时被关闭。但我只想在点击警报框外部而不是里面时关闭它。谢谢

 //generating the alertview with no button

 +(void) showAlertNoButtons:(NSString*)title text:(NSString*)text

    UIAlertView* alertView = [[UIAlertView alloc]
                          initWithTitle:title message:text
                          delegate:self cancelButtonTitle:nil
                          otherButtonTitles:nil];

   UITapGestureRecognizer *singleTap = [[UITapGestureRecognizer alloc]
                                    initWithTarget:self
                                    action:@selector(dismissAlert:)];

   alertView.delegate=self;
   [alertView addGestureRecognizer:singleTap];
   [alertView setMultipleTouchEnabled:YES];
   [alertView setUserInteractionEnabled:YES];

  [alertView show];
 
   //
  +(void)dismissAlert:(UITapGestureRecognizer *)gesture
    
      UIAlertView* alertView =(UIAlertView *)gesture.view;
      [alertView dismissWithClickedButtonIndex:0 animated:YES];

    

【问题讨论】：

***.com/questions/8260562/…

【参考方案1】：

您需要致电- (void)dismissWithClickedButtonIndex:(NSInteger)buttonIndex animated:(BOOL)animated

当你点击其他任何地方时

这段代码将处理您的点击

- (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event 

    [self dismissWithClickedButtonIndex:index animated:YES];

【讨论】：

[self dismissWithClickedButtonIndex:-1 animated:YES] 如果您不想让点击在解除警报时执行任何警报功能。