在 TTTAttributedLabel 中获取点击 URL 的文本部分
Get text part of clicked URL in TTTAttributedLabel
我需要TTTAttributedLabel
点击部分的文字:
// initialize
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
...
// Attributed Message Label
NSMutableAttributedString *messageTextAttr =[row valueForKey:@"message_text_attr"];
cell.messageText.attributedText = messageTextAttr;
cell.messageText.delegate = self;
[messageTextAttr enumerateAttribute:NSLinkAttributeName inRange:NSMakeRange(0, messageTextAttr.length) options:0 usingBlock:^(id value, NSRange range, BOOL *stop) {
if (value) {
[cell.messageText addLinkToURL:[NSURL URLWithString:value] withRange:range];
}
}];
...
}
// click event
- (void)attributedLabel:(TTTAttributedLabel *)label didSelectLinkWithURL:(NSURL *)url {
NSLog(@"link %@", [url absoluteString]);
NSLog(@"whole label %@", label);
}
但我只有 link 和整个标签,但没有被点击的部分(被点击的文本部分)。我怎样才能得到它?
我能想到的唯一解决方案是实施 attributedLabel: didSelectLinkWithTextCheckingResult:
而不是 attributedLabel: didSelectLinkWithURL:
。
它的好处是 NSTextCheckingResult
包含一个 范围 属性,您可以使用它来查找实际文本(而不是 URL ) 点击了。
- (void)attributedLabel:(TTTAttributedLabel *)label didSelectLinkWithTextCheckingResult:(NSTextCheckingResult *)result {
NSString* textClicked = [label.text substringWithRange:result.range];
//Get the URL and perform further actions
NSURL* urlClicked = result.URL;
}
Swift 4 片段
func attributedLabel(_ label: TTTAttributedLabel!, didSelectLinkWith result: NSTextCheckingResult!) {
guard let checkingResult = result else { return }
guard let clickedURL = checkingResult.url else { return }
guard let text = label.text as? NSString else { return }
let clickedText = text.substring(with: checkingResult.range)
}
我需要TTTAttributedLabel
点击部分的文字:
// initialize
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
...
// Attributed Message Label
NSMutableAttributedString *messageTextAttr =[row valueForKey:@"message_text_attr"];
cell.messageText.attributedText = messageTextAttr;
cell.messageText.delegate = self;
[messageTextAttr enumerateAttribute:NSLinkAttributeName inRange:NSMakeRange(0, messageTextAttr.length) options:0 usingBlock:^(id value, NSRange range, BOOL *stop) {
if (value) {
[cell.messageText addLinkToURL:[NSURL URLWithString:value] withRange:range];
}
}];
...
}
// click event
- (void)attributedLabel:(TTTAttributedLabel *)label didSelectLinkWithURL:(NSURL *)url {
NSLog(@"link %@", [url absoluteString]);
NSLog(@"whole label %@", label);
}
但我只有 link 和整个标签,但没有被点击的部分(被点击的文本部分)。我怎样才能得到它?
我能想到的唯一解决方案是实施 attributedLabel: didSelectLinkWithTextCheckingResult:
而不是 attributedLabel: didSelectLinkWithURL:
。
它的好处是 NSTextCheckingResult
包含一个 范围 属性,您可以使用它来查找实际文本(而不是 URL ) 点击了。
- (void)attributedLabel:(TTTAttributedLabel *)label didSelectLinkWithTextCheckingResult:(NSTextCheckingResult *)result {
NSString* textClicked = [label.text substringWithRange:result.range];
//Get the URL and perform further actions
NSURL* urlClicked = result.URL;
}
Swift 4 片段
func attributedLabel(_ label: TTTAttributedLabel!, didSelectLinkWith result: NSTextCheckingResult!) {
guard let checkingResult = result else { return }
guard let clickedURL = checkingResult.url else { return }
guard let text = label.text as? NSString else { return }
let clickedText = text.substring(with: checkingResult.range)
}