Created
April 25, 2018 05:59
-
-
Save putraxor/03ad59c117122b74155a77e5c101ff2a to your computer and use it in GitHub Desktop.
Flutter rich text view with clickable hyperlink
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
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); | |
} | |
} | |
} |
Wonder if there is a way to make this work with newline characters as well. Doing
final words = text.split(' ').split('\n');
would get the links right, but would lose the structure of the original text.
lol this was a nice thread good code @ASemeniuk
@rfogar2 no that is wrong you cannot specify split('').split
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Sorry, everyone, I had a very bad day back then. After reading like 10 different sources with the same mistake over and over (where people were 100% positive they knew what they were doing) and being unable to find the correct solution I was looking for (about using multiple GestureRecognizers in ListView), I just wanted to share my pain with others. Not happy about the result myself...