添加轻击手势到UILabel的一部分 [英] Add a tap gesture to a part of a UILabel

问题描述

我有一个像这样的NSAttributedString：

I have a NSAttributedString like so:

NSMutableAttributedString *str = [[NSMutableAttributedString alloc] initWithString:@"testing it out @clickhere"];
NSInteger length = str.length;
[str addAttribute:NSForegroundColorAttributeName value:[UIColor bestTextColor] range:NSMakeRange(0,length)];

NSMutableAttributedString设置为UILabel，如下所示：

The NSMutableAttributedString gets set to a UILabel like so:

label.attributedText = str;

如何为另一个视图控制器点击'@clickhere'轻击手势（或可点击的东西）在上面的字符串中？

How do I make a tap gesture (or something clickable) to another viewcontroller for the words '@clickhere in the string above?

谢谢！

推荐答案

我认为，最好的方法是将 UIGestureRecognizer 添加到 UILabel 并验证您想要的帧。

I think, the best way is adding the UIGestureRecognizer to your UILabel and validate the frame that you would like.

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

- (void)handleTap:(UITapGestureRecognizer *)tapRecognizer
{
    CGPoint touchPoint = [tapRecognizer locationInView: _yourLabel];

    //Modify the validFrame that you would like to enable the touch
    //or get the frame from _yourLabel using the NSMutableAttributedString, if possible
    CGRect validFrame = CGRectMake(0, 0, 300, 44);

    if(YES == CGRectContainsPoint(validFrame, touchPoint)
     {
        //Handle here.
     }
}

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