Flutter包管理工具插件tizen_package_manager的使用

tizen_package_manager

Tizen包管理器API。用于获取安装在Tizen设备上的软件包信息。

使用方法

要使用此插件，在pubspec.yaml文件中添加tizen_package_manager作为依赖项。

dependencies:
  tizen_package_manager: ^0.2.1

获取特定包的信息

要获取特定包的信息，可以使用PackageManager.getPackageInfo方法，该方法返回一个PackageInfo实例。

示例代码

String packageId = 'org.tizen.settings'; // 替换为实际包ID
PackageInfo package = await PackageManager.getPackageInfo(packageId);

获取所有包的信息

要获取Tizen设备上所有已安装包的信息，可以使用PackageManager.getPackagesInfo方法。

示例代码

List<PackageInfo> packages = await PackageManager.getPackagesInfo();

监听包事件

可以通过监听onInstallProgressChanged、onUninstallProgressChanged和onUpdateProgressChanged来监控包的安装、卸载和更新进度。

示例代码

_subscription = PackageManager.onInstallProgressChanged.listen((event) {
  // 一个包正在被安装。
});
...
_subscription.cancel();

必需的权限

使用包管理器功能时需要权限。在应用的tizen-manifest.xml文件中添加所需的权限。

示例代码

<privileges>
  <privilege>http://tizen.org/privilege/packagemanager.info</privilege>
  <!-- 下面的是可选的，仅在安装和卸载包时需要。 -->
  <privilege>http://tizen.org/privilege/packagemanager.admin</privilege>
</privileges>

注意：http://tizen.org/privilege/packagemanager.admin是一个平台级权限，只能由预装的应用程序使用。

完整示例Demo

以下是一个完整的示例，展示如何使用tizen_package_manager插件。

示例代码

// Copyright 2022 Samsung Electronics Co., Ltd. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// ignore_for_file: public_member_api_docs

import 'dart:async';

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

/// 当前应用包ID。
const String currentPackageId = 'org.tizen.tizen_package_manager_example';

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

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

  [@override](/user/override)
  Widget build(BuildContext context) {
    return MaterialApp(
      title: '包管理器演示',
      theme: ThemeData(primarySwatch: Colors.blue),
      home: const MyHomePage(),
    );
  }
}

class MyHomePage extends StatefulWidget {
  const MyHomePage({Key? key}) : super(key: key);

  [@override](/user/override)
  State<MyHomePage> createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  [@override](/user/override)
  Widget build(BuildContext context) {
    return DefaultTabController(
      length: 3,
      child: Scaffold(
        appBar: AppBar(
          title: const Text('包管理器演示'),
          bottom: const TabBar(
            isScrollable: true,
            tabs: [
              Tab(text: '当前包'),
              Tab(text: '包列表'),
              Tab(text: '包事件'),
            ],
          ),
        ),
        body: const TabBarView(
          children: [
            _CurrentPackageScreen(),
            _PackageListScreen(),
            _PackageEventsScreen(),
          ],
        ),
      ),
    );
  }
}

class _CurrentPackageScreen extends StatefulWidget {
  const _CurrentPackageScreen({Key? key}) : super(key: key);

  [@override](/user/override)
  State<_CurrentPackageScreen> createState() => _CurrentPackageScreenState();
}

class _CurrentPackageScreenState extends State<_CurrentPackageScreen> {
  Widget _infoTile(String title, String subtitle) {
    return ListTile(title: Text(title), subtitle: Text(subtitle));
  }

  [@override](/user/override)
  Widget build(BuildContext context) {
    return FutureBuilder<PackageInfo>(
      future: PackageManager.getPackageInfo(currentPackageId),
      builder: (BuildContext context, AsyncSnapshot<PackageInfo> snapshot) {
        if (snapshot.hasData) {
          final PackageInfo packageInfo = snapshot.data!;
          return ListView(
            children: [
              _infoTile('包ID', packageInfo.packageId),
              _infoTile('标签', packageInfo.label),
              _infoTile('版本', packageInfo.version),
              _infoTile('包类型', packageInfo.packageType.name),
              _infoTile('图标路径', packageInfo.iconPath ?? ''),
              _infoTile('系统应用', packageInfo.isSystem.toString()),
              _infoTile('预加载应用', packageInfo.isPreloaded.toString()),
              _infoTile('可移除', packageInfo.isRemovable.toString()),
            ],
          );
        } else if (snapshot.hasError) {
          return Center(child: Text(snapshot.error.toString()));
        } else {
          return const Center(child: CircularProgressIndicator());
        }
      },
    );
  }
}

class _PackageListScreen extends StatefulWidget {
  const _PackageListScreen({Key? key}) : super(key: key);

  [@override](/user/override)
  State<_PackageListScreen> createState() => _PackageListScreenState();
}

class _PackageListScreenState extends State<_PackageListScreen>
    with AutomaticKeepAliveClientMixin {
  [@override](/user/override)
  bool get wantKeepAlive => true;

  [@override](/user/override)
  Widget build(BuildContext context) {
    super.build(context);

    return FutureBuilder<List<PackageInfo>>(
      future: PackageManager.getPackagesInfo(),
      builder:
          (BuildContext context, AsyncSnapshot<List<PackageInfo>> snapshot) {
        if (snapshot.hasData) {
          final List<PackageInfo> packages = snapshot.data!;
          return ListView.builder(
            itemCount: packages.length,
            itemBuilder: (BuildContext context, int index) {
              final PackageInfo package = packages[index];
              return ListTile(
                title: Text(package.label),
                subtitle: Padding(
                  padding: const EdgeInsets.symmetric(vertical: 5),
                  child: Text(
                    '包ID: ${package.packageId}\n'
                    '版本: ${package.version}\n'
                    '类型: ${package.packageType.name}\n'
                    '系统: ${package.isSystem}',
                  ),
                ),
                isThreeLine: true,
              );
            },
          );
        } else if (snapshot.hasError) {
          return Center(child: Text(snapshot.error.toString()));
        } else {
          return const Center(child: CircularProgressIndicator());
        }
      },
    );
  }
}

class _PackageEventsScreen extends StatefulWidget {
  const _PackageEventsScreen({Key? key}) : super(key: key);

  [@override](/user/override)
  State<_PackageEventsScreen> createState() => _PackageEventsScreenState();
}

class _PackageEventsScreenState extends State<_PackageEventsScreen>
    with AutomaticKeepAliveClientMixin {
  late final StreamSubscription<PackageEvent>? _installSubscription;
  late final StreamSubscription<PackageEvent>? _uninstallSubscription;
  late final StreamSubscription<PackageEvent>? _updateSubscription;
  final List<PackageEvent> _packageEvents = [];

  [@override](/user/override)
  void initState() {
    super.initState();

    _installSubscription =
        PackageManager.onInstallProgressChanged.listen((PackageEvent event) {
      setState(() {
        _packageEvents.add(event);
      });
    });
    _uninstallSubscription =
        PackageManager.onUninstallProgressChanged.listen((PackageEvent event) {
      setState(() {
        _packageEvents.add(event);
      });
    });
    _updateSubscription =
        PackageManager.onUpdateProgressChanged.listen((PackageEvent event) {
      setState(() {
        _packageEvents.add(event);
      });
    });
  }

  [@override](/user/override)
  bool get wantKeepAlive => true;

  [@override](/user/override)
  Widget build(BuildContext context) {
    super.build(context);

    if (_packageEvents.isEmpty) {
      return const Center(child: Text('无事件'));
    } else {
      return ListView.builder(
        itemCount: _packageEvents.length,
        itemBuilder: (BuildContext context, int index) {
          final PackageEvent event = _packageEvents.elementAt(index);
          return ListTile(
            title: Text(event.packageId),
            subtitle: Text(
              '类型: ${event.eventType.name}\n'
              '状态: ${event.eventState.name}',
            ),
          );
        },
      );
    }
  }

  [@override](/user/override)
  void dispose() {
    super.dispose();
    _installSubscription?.cancel();
    _uninstallSubscription?.cancel();
    _updateSubscription?.cancel();
  }
}