通过单击 Uitextview 或 UILabel 中的某个单词来执行操作 [英] Perform action by clicking on some word in Uitextview or UILabel

问题描述

当用户单击 Uitextview(或 UIlabel)中的某些格式化/特定单词时，我该如何执行某些特定操作(例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 应用程序相同的结果.当您单击一个名称时，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、教程或任何你想要的东西.

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:)]];

然后只需使用以下代码检查在 didReceiveGestureOnText 中单击了哪个单词:

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];
}

编辑

这就是你的 didReceiveGestureOnText 方法的样子:

This is how your didReceiveGestureOnText method should look-like:

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

然而，这将引导您检查字符串毕竟这真的很酷(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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