如何拦截长按UITextView？

问题描述

我试图拦截当用户长按UITextView（放大镜然后出现使用插入符定位器），然后释放触摸，即通常在放大镜之后出现选择和全选选项。

这是否可以？

解决方案

您可以尝试这样：

禁用内置的长按识别器

$ b {
if（[recognizer isKindOfClass：[UILongPressGestureRecognizer class]]）{
recognizer.enabled = NO（UIGestureRecognizer类型的识别器）; $

  ; 
} 
} 
  

然后添加您自己的

  UILongPressGestureRecognizer * myLongPressRecognizer = [[UILongPressGestureRecognizer alloc] initWithTarget：< your target> action：@selector（< your custom handler>）]; 
 [textView addGestureRecognizer：myLongPressRecognizer]; 
 [myLongPressRecognizer release]; 
  

Total Objective-C / Cocoa Touch noob here, beware.

I'm trying to intercept when a user long presses on a UITextView (a magnifying glass then appears with the caret positioner) and then releases the touch, i.e. when normally the "Select" and "Select All" Options appear, after the magnifying glass. I want to replace this with my own custom action that is then performed.

Is this possible?

解决方案

You can try something like this:

Disable the built-in long press recognizer

for (UIGestureRecognizer *recognizer in textView.gestureRecognizers) {
  if ([recognizer isKindOfClass:[UILongPressGestureRecognizer class]]){
    recognizer.enabled = NO;
  }
}

Then add your own

UILongPressGestureRecognizer *myLongPressRecognizer = [[UILongPressGestureRecognizer alloc] initWithTarget:<your target> action:@selector(<your custom handler>)];
[textView addGestureRecognizer:myLongPressRecognizer];
[myLongPressRecognizer release];

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