问如何在Flutter中链接文本

EN

import 'package:flutter_linkify/flutter_linkify.dart';

Linkify(
  onOpen: (url) => print("Clicked $url!"),
  text: "Made by https://cretezy.com",
);

import 'package:url_launcher/url_launcher.dart';

Text buildTextWithLinks(String textToLink) => Text.rich(TextSpan(children: linkify(textToLink)));

Future<void> openUrl(String url) async {
  if (await canLaunch(url)) {
    await launch(url);
  } else {
    throw 'Could not launch $url';
  }
}

const String urlPattern = r'https?:/\/\\S+';
const String emailPattern = r'\S+@\S+';
const String phonePattern = r'[\d-]{9,}';
final RegExp linkRegExp = RegExp('($urlPattern)|($emailPattern)|($phonePattern)', caseSensitive: false);

WidgetSpan buildLinkComponent(String text, String linkToOpen) => WidgetSpan(
    child: InkWell(
      child: Text(
        text,
        style: TextStyle(
          color: Colors.blueAccent,
          decoration: TextDecoration.underline,
        ),
      ),
      onTap: () => openUrl(linkToOpen),
    )
);

List<InlineSpan> linkify(String text) {
  final List<InlineSpan> list = <InlineSpan>[];
  final RegExpMatch match = linkRegExp.firstMatch(text);
  if (match == null) {
    list.add(TextSpan(text: text));
    return list;
  }

  if (match.start > 0) {
    list.add(TextSpan(text: text.substring(0, match.start)));
  }

  final String linkText = match.group(0);
  if (linkText.contains(RegExp(urlPattern, caseSensitive: false))) {
    list.add(buildLinkComponent(linkText, linkText));
  }
  else if (linkText.contains(RegExp(emailPattern, caseSensitive: false))) {
    list.add(buildLinkComponent(linkText, 'mailto:$linkText'));
  }
  else if (linkText.contains(RegExp(phonePattern, caseSensitive: false))) {
    list.add(buildLinkComponent(linkText, 'tel:$linkText'));
  } else {
    throw 'Unexpected match: $linkText';
  }

  list.addAll(linkify(text.substring(match.start + linkText.length)));

  return list;
}

import 'package:flutter/gestures.dart';
import 'package:flutter/material.dart';

void main() {
  runApp(HyperLinkDemo());
}

class HyperLinkDemo extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        body: Center(
          child: Padding(
            padding: const EdgeInsets.all(8.0),
            child: RichText(
                text: TextSpan(children: [
              TextSpan(
                  text: 'This is a very long text, but you can not click on it. ',
                  style: TextStyle(fontSize: 20, color: Colors.black)),
              TextSpan(
                  text: 'And this is a clickable text',
                  style: TextStyle(
                      fontSize: 20,
                      color: Colors.blue,
                      decoration: TextDecoration.underline),
                  recognizer: TapGestureRecognizer()
                    ..onTap = () {
                      print('You clicked on me!');
                    })
            ])),
          ),
        ),
      ),
    );
  }
}