更新(Android >= 11):

iOS configuration: Open info.plist file and add: <key>LSApplicationQueriesSchemes</key> <array> <string>https</string> </array> Android configuration: Open AndroidManifest.xml file located in app/src/main and add the following at the root: <manifest xmlns:android="http://schemas.android.com/apk/res/android"> <!-- Add this query --> <queries> <intent> <action android:name="android.intent.action.VIEW" /> <data android:scheme="https" /> </intent> </queries> <application ... /> </manifest>

颤振代码:

简单地包装你的文本在一个手势探测器或InkWell和处理点击在onTap()使用url_launcher包。

InkWell(
  onTap: () => launchUrl(Uri.parse('https://www.google.com')),
  child: Text(
    'Click here',
    style: TextStyle(decoration: TextDecoration.underline, color: Colors.blue),
  ),
)

截图:

Flutter没有内置的超链接支持，但您可以自己伪造它。画廊的抽屉里有个例子，飞镖。他们使用一个RichText小部件包含一个彩色的TextSpan，它有一个识别器属性来处理点击:

        RichText(
          text: TextSpan(
            children: [
              TextSpan(
                style: bodyTextStyle,
                text: seeSourceFirst,
              ),
              TextSpan(
                style: bodyTextStyle.copyWith(
                  color: colorScheme.primary,
                ),
                text: repoText,
                recognizer: TapGestureRecognizer()
                  ..onTap = () async {
                    final url = 'https://github.com/flutter/gallery/';
                    if (await canLaunch(url)) {
                      await launch(
                        url,
                        forceSafariVC: false,
                      );
                    }
                  },
              ),
              TextSpan(
                style: bodyTextStyle,
                text: seeSourceSecond,
              ),
            ],
          ),

再添加一个简单而整洁的技巧，因为上面的技巧对于某些用例来说过于复杂。我用RichText - WidgetSpan, TextButton和URL启动包。只需根据您的需要修改下面的示例块。

结果:

代码:

class UserAgreementText extends StatelessWidget {
  const UserAgreementText({Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return Row(
      children: [
        Expanded(
          child: RichText(
            textAlign: TextAlign.center,
            text: TextSpan(
              text: 'By logging in, you accept our ',
              style: Theme.of(context).textTheme.bodySmall,
              children: const <InlineSpan>[
                WidgetSpan(
                  alignment: PlaceholderAlignment.baseline,
                  baseline: TextBaseline.alphabetic,
                  child: LinkButton(
                      urlLabel: "Terms and Conditions",
                      url: "https://example.com/terms-and-conditions"),
                ),
                TextSpan(
                  text: ' and ',
                ),
                WidgetSpan(
                  alignment: PlaceholderAlignment.baseline,
                  baseline: TextBaseline.alphabetic,
                  child: LinkButton(
                      urlLabel: "Privacy Policy",
                      url: "https://example.com/privacy-policy"),
                ),
              ],
            ),
          ),
        ),
      ],
    );
  }
}

link_button.dart

class LinkButton extends StatelessWidget {
  const LinkButton({Key? key, required this.urlLabel, required this.url})
      : super(key: key);

  final String urlLabel;
  final String url;

  Future<void> _launchUrl(String url) async {
    final Uri uri = Uri.parse(url);

    if (!await launchUrl(uri)) {
      throw 'Could not launch $uri';
    }
  }

  @override
  Widget build(BuildContext context) {
    return TextButton(
      style: TextButton.styleFrom(
        padding: EdgeInsets.zero,
        shape: RoundedRectangleBorder(
          borderRadius: BorderRadius.circular(0),
        ),
        tapTargetSize: MaterialTapTargetSize.shrinkWrap,
        visualDensity: VisualDensity.compact,
        minimumSize: const Size(0, 0),
        textStyle: Theme.of(context).textTheme.bodySmall,
      ),
      onPressed: () {
        _launchUrl(url);
      },
      child: Text(urlLabel),
    );
  }
}

注意:如果遇到与调用launchUrl相关的错误，请确保安装了URL启动器包，然后重新构建应用程序。

只需将InkWell包装在Text小部件周围，并将UrlLauncher(来自服务库)提供给onTap属性。在下面使用UrlLauncher之前，将其安装为Flutter包。

import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:url_launcher/url_launcher.dart';


void main() {
  runApp(new MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return new MaterialApp(
      home: new Scaffold(
        appBar: new AppBar(
          title: new Text('UrlLauncher'),
        ),
        body: new Center(
          child: new InkWell(
              child: new Text('Open Browser'),
              onTap: () => launch('https://docs.flutter.io/flutter/services/UrlLauncher-class.html')
          ),
        ),
      ),
    );
  }
}

您可以为Text小部件提供一个样式，使其看起来像一个链接。

更新

在研究了这个问题之后，我发现了一个不同的解决方案来实现你所要求的“在线”超链接。您可以使用RichText小部件与附带的textspan。

import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:url_launcher/url_launcher.dart';

void main() {
  runApp(new MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return new MaterialApp(
      home: new Scaffold(
        appBar: new AppBar(
          title: new Text('UrlLauchner'),
        ),
        body: new Center(
          child: new RichText(
            text: new TextSpan(
              children: [
                new TextSpan(
                  text: 'This is no Link, ',
                  style: new TextStyle(color: Colors.black),
                ),
                new TextSpan(
                  text: 'but this is',
                  style: new TextStyle(color: Colors.blue),
                  recognizer: new TapGestureRecognizer()
                    ..onTap = () { launch('https://docs.flutter.io/flutter/services/UrlLauncher-class.html');
                  },
                ),
              ],
            ),
          ),
        ),
      ),
    );
  }
}

这样你就可以突出显示一个单词，并从中创建一个超链接;)

这是一整套的钥匙 https://pub.dev/packages/link_text

child: LinkText(
  'Hello check http://google.com',
  textStyle: ...,
),

对于这种复杂性，使用库更安全

优点:

作为单个参数接受整个字符串 解析链接并将其呈现为可点击的UI，与不可点击的文本内联 不需要复杂的RichText结构

可以使用flutter_linkify包 https://pub.dev/packages/flutter_linkify 只是想提供另一种选择。 包会自动划分文本并突出显示http/https 结合插件url_launcher你可以启动url 你可以查看下面的例子:

完整代码如下

import 'package:flutter/material.dart';
import 'package:flutter_linkify/flutter_linkify.dart';
import 'dart:async';

import 'package:url_launcher/url_launcher.dart';

void main() => runApp(new LinkifyExample());

class LinkifyExample extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return new MaterialApp(
      title: 'flutter_linkify example',
      home: Scaffold(
        appBar: AppBar(
          title: Text('flutter_linkify example'),
        ),
        body: Center(
          child: Linkify(
            onOpen: _onOpen,
            text: "Made by https://cretezy.com \n\nMail: example@gmail.com \n\n  this is test http://pub.dev/ ",
          ),
        ),
      ),
    );
  }

  Future<void> _onOpen(LinkableElement link) async {
    if (await canLaunch(link.url)) {
      await launch(link.url);
    } else {
      throw 'Could not launch $link';
    }
  }
}