通过单击Uitextview或UILabel中的某个字来执行操作

问题描述

当用户点击Uitextview（或UIlabel）中的某些格式/特定词时，如何执行某些特定操作（如显示模态或推送控制器）？
我听说过NSAttributedString，但我不知道如何使用它。

How can I do to perform some specific action (like showing a modal or pushing a controller) when user click on some formated/specific word in Uitextview (or UIlabel) ?I've heard about NSAttributedString but I'm not sure how to make this with it.

我想要的是与Facebook的相同的结果app。当您点击某个名称时，它会推送另一个控制器：

What I want to have is the same results as the facebook app. When you click on a name it push another controller :

如果你能给我一些提示，教程或你想要的任何东西。

If you can give me some hint, tutorial or whatever you want please.

推荐答案

向UITextView添加手势识别器：

Add gesture recognizer to your UITextView:

//bind gesture
[_yourTextView addGestureRecognizer:[[UITapGestureRecognizer alloc] initWithTarget:delegate action:@selector(didReceiveGestureOnText:)]];

然后只需检查didReceiveGestureOnText中用下面的代码单击哪个单词：

And then just check which word is clicked in didReceiveGestureOnText with following code:

+(NSString*)getPressedWordWithRecognizer:(UIGestureRecognizer*)recognizer
{
    //get view
    UITextView *textView = (UITextView *)recognizer.view;
    //get location
    CGPoint location = [recognizer locationInView:textView];
    UITextPosition *tapPosition = [textView closestPositionToPoint:location];
    UITextRange *textRange = [textView.tokenizer rangeEnclosingPosition:tapPosition withGranularity:UITextGranularityWord inDirection:UITextLayoutDirectionRight];

    //return string
    return [textView textInRange:textRange];
}

EDIT

这是你的didReceiveGestureOnText方法应该是什么样子：

This is how your didReceiveGestureOnText method should look-like:

-(void)didReceiveGestureOnText:(UITapGestureRecognizer*)recognizer
{
    //check if this is actual user
    NSString* pressedWord = [delegate getPressedWordWithRecognizer:recognizer];
}

但是这会导致你检查字符串，因为它很慢）。

However this will led you in checking strings after all which is in really cool(as it's slow).

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