Created
April 25, 2018 05:59
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Flutter rich text view with clickable hyperlink
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import 'package:flutter/foundation.dart'; | |
import 'package:flutter/gestures.dart'; | |
import 'package:flutter/material.dart'; | |
import 'package:url_launcher/url_launcher.dart' as launcher; | |
///TODO: check performance impact bro !!! | |
class LinkTextSpan extends TextSpan { | |
LinkTextSpan({TextStyle style, String url, String text}) | |
: super( | |
style: style, | |
text: text ?? url, | |
recognizer: new TapGestureRecognizer() | |
..onTap = () => launcher.launch(url)); | |
} | |
class RichTextView extends StatelessWidget { | |
final String text; | |
RichTextView({@required this.text}); | |
bool _isLink(String input) { | |
final matcher = new RegExp( | |
r"(http(s)?:\/\/.)?(www\.)?[-a-zA-Z0-9@:%._\+~#=]{2,256}\.[a-z]{2,6}\b([-a-zA-Z0-9@:%_\+.~#?&//=]*)"); | |
return matcher.hasMatch(input); | |
} | |
@override | |
Widget build(BuildContext context) { | |
final _style = Theme.of(context).textTheme.body2; | |
final words = text.split(' '); | |
List<TextSpan> span = []; | |
words.forEach((word) { | |
span.add(_isLink(word) | |
? new LinkTextSpan( | |
text: '$word ', | |
url: word, | |
style: _style.copyWith(color: Colors.blue)) | |
: new TextSpan(text: '$word ', style: _style)); | |
}); | |
if (span.length > 0) { | |
return new RichText( | |
text: new TextSpan(text: '', children: span), | |
); | |
} else { | |
return new Text(text); | |
} | |
} | |
} |
lol this was a nice thread good code @ASemeniuk
@rfogar2 no that is wrong you cannot specify split('').split
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Wonder if there is a way to make this work with newline characters as well. Doing
would get the links right, but would lose the structure of the original text.