objective-c - 成为第一响应者后如何识别点击文本视图？

Question

当 UITextView 被点击时，我希望它继续作为第一响应者工作，但我还需要触发其他事件。在 UITextView 不是第一响应者之前，UITapGestureRecognizer 工作得很好，但是在它获得焦点之后，点击不再被识别。

  UITapGestureRecognizer *singleTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(singleTapRecognized:)];
  singleTap.numberOfTapsRequired = 1;
  [txtView addGestureRecognizer:singleTap];
  [singleTap release];

  -(IBAction)singleTapRecognized:(id)sender
  {
     //Does not enter here with a tap after txtView is first responder
  }

Answer 1

在方法中使用以下代码ViewDidLoad()，并确保包含

[yourTextView setUserInteractionEnabled:YES] 

UITapGestureRecognizer *gestureRecognizer = [[UITapGestureRecognizer alloc]initWithTarget:self action:SEL(textViewTapped:)];

 [gestureRecognizer setNumberOfTapsRequired:1];  
 [yourTextView addGestureRecognizer:gestureRecognizer];`

Answer 2

您应该在手势识别器委托上实现以下方法：

-(BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer*)otherGestureRecognizer {
    return YES;  
}