chrome_launcher #

Android Flutter 插件用于强制使用 Google Chrome 打开一个 URL。

背景（为什么？）#

一些预装的浏览器无法执行我指定的深层链接/应用链接，但 Chrome 可以。为了强制使用 Chrome，我制作了这个插件。

开始使用#

非常简单。

在 Android 设备上使用 Google Chrome 打开一个 URL。还提供了检查 Chrome for Android 是否已安装的实用方法。

example/lib/main.dart

import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:chrome_launcher/chrome_launcher.dart';
void main() {
runApp(ChromeLauncherExampleApp());
}
class ChromeLauncherExampleApp extends StatelessWidget {
@override
Widget build(BuildContext context) {
return MaterialApp(
color: Colors.blue,
home: MainPage(),
);
}
}
class MainPage extends StatefulWidget {
@override
_MainPageState createState() => _MainPageState();
}
class _MainPageState extends State<MainPage> {
@override
Widget build(BuildContext context) {
return Scaffold(
appBar: AppBar(
title: Text(“Chrome Launcher 示例”),
),
body: Center(
child: Padding(
padding: const EdgeInsets.symmetric(horizontal: 24.0,),
child: Column(
mainAxisSize: MainAxisSize.min,
children: [
SizedBox(
width: double.infinity,
child: TextField(
controller: _urlController,
decoration: InputDecoration(
labelText: “URL”,
),
keyboardType: TextInputType.url,
),
),
Padding(
padding: const EdgeInsets.only(top: 24.0,),
child: ElevatedButton(
onPressed: _launchWithChrome,
child: Text(“用 Chrome 启动”),
),
),
],
),
),
),
);
}
@override
void dispose() {
_urlController.dispose();
super.dispose();
}
final TextEditingController _urlController = TextEditingController();
void _launchWithChrome() {
final chromeLauncher = ChromeLauncher();
chromeLauncher.hasChromeInstalled().then((hasChromeInstalled,) {
if (!hasChromeInstalled) {
showDialog(
context: context,
builder: (context) => AlertDialog(
title: Text(“无法继续”),
content: Text(“您的设备没有安装启用 Chrome”),
actions: [
TextButton(
onPressed: () => Navigator.of(context,).pop(),
child: Text(“关闭”),
),
],
),
);
return;
}
final data = _urlController.text;
  chromeLauncher.isChromeDefaultBrowser().then((isDefaultBrowser) {
    debugPrint("isDefaultBrowser: $isDefaultBrowser",);
  },).catchError((e) {
    debugPrint("isDefaultBrowser: $e",);
  },);

  chromeLauncher.launchWithChrome(data,).catchError((e) {
    debugPrint(e.toString(),);
    showDialog(
      context: context,
      builder: (context) =&gt; AlertDialog(
        title: Text("未能用 Chrome 启动"),
        content: Text(e.toString(),),
        actions: [
          TextButton(
            onPressed: () =&gt; Navigator.of(context,).pop(),
            child: Text("关闭"),
          ),
        ],
      ),
    );
  },);
},);
}
}