如何在表格视图单元格中的UILabel中添加UITapGestureRecognizer？ [英] How can I add a UITapGestureRecognizer to a UILabel inside a table view cell?

问题描述

我正在使用NIB文件来布局自定义表格视图单元格。这个单元格有一个带有出口的标签，名为lblName。将UITapGestureRecognizer添加到此标签永远不会触发关联的事件。我有userInteractionEnabled = YES。

I am using a NIB file to layout a custom table view cell. This cell has a label with outlet called lblName. Adding a UITapGestureRecognizer to this label never fires the associated event. I have userInteractionEnabled = YES.

我猜测问题是UILabel在TableView中并且表/单元视图拦截了水龙头。我可以对此做些什么吗？

I'm guessing that the problem is that the UILabel is in a TableView and that the table/cell view is intercepting the taps. Can I do something about this?

我想要做的就是在按下UILabel时执行一些自定义操作！我所见过的所有解决方案都是荒谬的。使用标准工具集应该很容易。但显然不是。

All I want to do is perform some custom action when a UILabel is pressed! All of the solutions for doing this that I've seen are ridiculous. It should be easy using the standard tool set. But evidently not.

这是我正在使用的代码：

Here's the code I'm using:

- (void)tapAction {
    NSLog(@"Tap action");
}

- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view from its nib

    UITapGestureRecognizer *recognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tapAction)]; 
    [recognizer setNumberOfTapsRequired:1];
    //lblName.userInteractionEnabled = true;  (setting this in Interface Builder)
    [lblName addGestureRecognizer:recognizer];
}

推荐答案

方便：

您也可以使用该标签顶部的隐藏按钮。因此，它将减少为该标签添加tapGesture的工作。

You may also use a invisible button on the top of that label. So it will reduce your work of adding tapGesture for that label.

替代方式：

您不应为此<$创建IBOutlet C $ C>的UILabel 。执行此操作时，您将在自定义类实现文件中添加插座。您无法访问其他文件。因此，在自定义类 IB 中为该标签设置标记，并在 cellForRowAtIndexPath：方法中编写代码。

You should not create an IBOutlet for that UILabel. When you do that,you will add a outlet in custom class implementation file. You cannot access in other file. So set a tag for that label in custom class IB and write a code in cellForRowAtIndexPath: method.

更新：

在 cellForRowAtIndexPath：方法，

for(UIView *view in cell.contentViews.subviews) {
    if(view.tag == 1) {
        UITapGestureRecognizer *tap=[[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tapAction)];
        [tap setNumberOfTapsRequired:1];
        [view addGestureRecognizer:tap];
    }
}

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