Flutter静默安装APK插件flutter_install_apk_silently的使用

插件介绍

flutter_install_apk_silently 是一个用于在Android设备上静默安装APK的Flutter插件，适用于自定义Android ROM和已root的设备。该插件可以在不中断用户界面的情况下安装APK文件。

版本信息与捐赠

• Pub.dev
• Donate via PayPal
• Buy Me A Coffee

使用步骤

1. 添加依赖

在 pubspec.yaml 文件中添加以下依赖：

dependencies:
  flutter_install_apk_silently: ^0.2.0

2. 配置 Android 权限

在 AndroidManifest.xml 文件中添加必要的权限：

<uses-permission android:name="android.permission.INSTALL_PACKAGES" />
<uses-permission android:name="android.permission.DELETE_PACKAGES" />

3. 根设备或模拟器设置

确保你的设备已经root。如果你使用的是模拟器，可以参考这篇博客进行root操作。

示例代码

下面是一个完整的示例代码，展示了如何使用 flutter_install_apk_silently 插件来下载并安装APK文件。

import 'dart:io';
import 'package:dio/dio.dart';
import 'package:file_picker/file_picker.dart';
import 'package:flutter/material.dart';
import 'package:flutter_install_apk_silently/flutter_install_apk_silently.dart';
import 'package:path_provider/path_provider.dart';

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

class MyApp extends StatefulWidget {
  @override
  _MyAppState createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {
  String _status = "idle";
  String _message = 'Please browse APK.';

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: const Text('Plugin example app'),
        ),
        body: Column(
          mainAxisAlignment: MainAxisAlignment.spaceEvenly,
          crossAxisAlignment: CrossAxisAlignment.center,
          children: <Widget>[
            RaisedButton(
              onPressed: () async {
                setState(() {
                  _status = "loading";
                  _message = "Waiting to be installed.";
                });

                var tempDir = await getTemporaryDirectory();
                String fullPath = "${tempDir.path}/app_${DateTime.now().millisecondsSinceEpoch}.apk";
                print('full path $fullPath');

                Dio dio = Dio();
                await download(dio, fullPath);

                File file = File(fullPath);

                Future.delayed(Duration(seconds: 1), () async {
                  bool isInstalled = await FlutterInstallApkSilently.installAPK(file: file);
                  if (isInstalled) {
                    setState(() {
                      _status = "success";
                      _message = "The APK is installed successfully.";
                    });
                  } else {
                    setState(() {
                      _status = "failed";
                      _message = "The APK installation failed.";
                    });
                  }
                });
              },
              child: Text("Download from Internet", style: TextStyle(fontSize: 24.0)),
            ),
            RaisedButton(
              onPressed: () async {
                File file = await FilePicker.getFile(type: FileType.custom, allowedExtensions: ['apk']);

                setState(() {
                  _status = "loading";
                  _message = "Waiting to be installed.";
                });

                Future.delayed(Duration(seconds: 1), () async {
                  bool isInstalled = await FlutterInstallApkSilently.installAPK(file: file);
                  if (isInstalled) {
                    setState(() {
                      _status = "success";
                      _message = "The APK is installed successfully.";
                    });
                  } else {
                    setState(() {
                      _status = "failed";
                      _message = "The APK installation failed.";
                    });
                  }
                });
              },
              child: Text("Browse APK", style: TextStyle(fontSize: 24.0)),
            ),
            (_status == "loading")
                ? Center(child: CircularProgressIndicator())
                : (_status == "success")
                    ? Center(child: Icon(Icons.check, color: Colors.green, size: 35.0))
                    : (_status == "failed")
                        ? Center(child: Icon(Icons.clear, color: Colors.red, size: 35.0))
                        : Container(),
            Text("$_message", style: TextStyle(fontSize: 24.0)),
            RaisedButton(
              onPressed: () async {
                bool result = await FlutterInstallApkSilently.rebootDevice();
                if (result) {
                  // Device will reboot
                }
              },
              child: Text("Reboot device", style: TextStyle(fontSize: 24.0)),
            ),
          ],
        ),
      ),
    );
  }

  Future<void> download(Dio dio, String savePath) async {
    try {
      Response response = await dio.get(
        'your-apk-url-here', // 替换为实际的APK下载链接
        options: Options(
          responseType: ResponseType.bytes,
          followRedirects: false,
          validateStatus: (status) => status < 500,
        ),
      );

      File file = File(savePath);
      var raf = file.openSync(mode: FileMode.write);
      raf.writeFromSync(response.data);
      await raf.close();
    } catch (e) {
      print(e);
    }
  }
}

注意事项

1. Root权限：此插件仅适用于已root的设备或自定义ROM。
2. 权限配置：确保在 AndroidManifest.xml 中正确配置了安装和删除应用的权限。
3. 安全性：静默安装APK存在一定的安全风险，请谨慎使用，并确保只安装来自可信来源的APK文件。

反馈与贡献

这是一个beta版本的插件，欢迎任何问题反馈或贡献代码。你可以在GitHub上找到更多信息。

希望这个指南能帮助你成功集成并使用 flutter_install_apk_silently 插件！如果有任何问题，欢迎随时提问。