flutter常用包整理

1. 获取app版本信息

 当你在 app 里需要获取当前版本信息时，可以使用PackageInfoPlus。

import 'package:package_info_plus/package_info_plus.dart';

...

// Be sure to add this line if `PackageInfo.fromPlatform()` is called before runApp()
WidgetsFlutterBinding.ensureInitialized();

...

PackageInfo packageInfo = await PackageInfo.fromPlatform();

String appName = packageInfo.appName;
String packageName = packageInfo.packageName;
String version = packageInfo.version;
String buildNumber = packageInfo.buildNumber;

2. 加载URL

 当你在 app 需要打开链接时，可以使用url_launcher。

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

final Uri _url = Uri.parse('https://flutter.dev');

void main() => runApp(
      const MaterialApp(
        home: Material(
          child: Center(
            child: ElevatedButton(
              onPressed: _launchUrl,
              child: Text('Show Flutter homepage'),
            ),
          ),
        ),
      ),
    );

Future<void> _launchUrl() async {
  if (!await launchUrl(_url)) {
    throw 'Could not launch $_url';
  }
}

署名-非商业性使用-禁止演绎 4.0 国际