大家都知道，UITextVview可以用以下方法自动检测text中的链接：

let label = UITextView()
label.dataDetectorTypes = .link
label.isEditable = false

如果我们使用的attributedString后，会发现如果添加Attachment后，会触发一个选择（编辑的GR），如果我们只想要链接的gr，不想要选择的gr，可以遍历并禁用它。方法如下：

传送门：http://stackoverflow.com/questions/18962742/uitextview-link-detection-in-ios-7

NSArray *textViewGestureRecognizers = self.captionTextView.gestureRecognizers;
NSMutableArray *mutableArrayOfGestureRecognizers = [[NSMutableArray alloc] init];
for (UIGestureRecognizer *gestureRecognizer in textViewGestureRecognizers) {
    if (![gestureRecognizer isKindOfClass:[UILongPressGestureRecognizer class]]) {
        [mutableArrayOfGestureRecognizers addObject:gestureRecognizer];
    } else {
        UILongPressGestureRecognizer *longPressGestureRecognizer = (UILongPressGestureRecognizer *)gestureRecognizer;
        if (longPressGestureRecognizer.minimumPressDuration < 0.3) {
            [mutableArrayOfGestureRecognizers addObject:gestureRecognizer];
        }
    }
}
self.captionTextView.gestureRecognizers = mutableArrayOfGestureRecognizers;