将 TapGestureRecognizer 添加到 UITextView

发布于 2024-11-14 04:00:32 字数 450 浏览 2 评论 0原文

我想将 *UITapGestureRecognize*r 添加到我的 UITextView 中，因为我想关闭 TextView 所在的“弹出窗口”。所以我想要该方法“当 T*extView* 被点击时，Popup 类的 hide" 被调用。我尝试了如下方法，但由于某种原因它不起作用：

UITapGestureRecognizer *gr = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(show)];
[gr setNumberOfTapsRequired:1];
[viewText addGestureRecognizer:gr];

我也不想为其创建子类，因为然后我需要调用“父”方法“隐藏”。

也许您现在可以很好地解决该问题。
先感谢您。

原文

I want to add an *UITapGestureRecognize*r to my UITextView, because I want to close a "Popup" where the TextView is in. So I want, that the method "hide" of the Popup class is called, when the T*extView* is tapped. I tried it like the following, but it isn't working for some reason:

UITapGestureRecognizer *gr = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(show)];
[gr setNumberOfTapsRequired:1];
[viewText addGestureRecognizer:gr];

I also don't want to create a Subclass for it, because I then would need to call the "parent"-method "hide".

Maybe you now a good solution for that problem.
Thank you in advance.

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把昨日还给我 2024-11-21 04:00:32

您不应该使用 UITapGestureRecognizer，而应使用 UITextFieldDelegate。

您可以在这里阅读：

您基本上需要添加
UITextViewDelegate 像这样到你的 .h 文件 -

@interface MyViewController : UIViewController<UITextViewDelegate>

然后将你的控制器分配为委托：

viewText.delegate =self;

现在使用委托方法之一，也许：

- (BOOL)textViewShouldBeginEditing:(UITextView *)textView{

   // Do what you need to do...

}

编辑

好吧，我可以考虑另外 2 种方法：

你可以将你的 textView 包装在里面UIView 并将 UITapGestureRecognizer 添加到视图中。

您可以使用：

 -(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{
     UITouch *touch = [触摸任何对象];
     CGPoint 位置 = [触摸 locationInView:textView];

     //检查点击是否在文本视图范围内
     if (CGRectContainsPoint(textView.bounds, 位置)){
         //做某事
     }
 }

祝你好运

You shouldnt use UITapGestureRecognizer but use the UITextFieldDelegate.

You can read about it here:

http://developer.apple.com/library/ios/#DOCUMENTATION/UIKit/Reference/UITextViewDelegate_Protocol/Reference/UITextViewDelegate.html%23//apple_ref/doc/uid/TP40006897

You basicly need to add the
UITextViewDelegate to your .h file like that -

@interface MyViewController : UIViewController<UITextViewDelegate>

Then assign your controller as the delegate:

viewText.delegate =self;

Now use one of the delegation methods, maybe:

- (BOOL)textViewShouldBeginEditing:(UITextView *)textView{

   // Do what you need to do...

}

Edit

Well I can think on 2 additional approaches:

You can wrap your textView inside a UIView and add the UITapGestureRecognizer to the view.

You can use :

 -(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{
     UITouch *touch = [touches anyObject];
     CGPoint location = [touch locationInView:textView];

     //Checks if the tap was inside the textview bounds
     if (CGRectContainsPoint(textView.bounds, location)){
         //do something
     }
 }

Good luck

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