Flutter异步设置壁纸插件async_wallpaper的使用

发布于 1周前 作者 h691938207 来自 Flutter

Flutter异步设置壁纸插件async_wallpaper的使用

简介

async_wallpaper 是一个Flutter插件,它允许你在Android设备上异步设置壁纸。该插件支持从文件路径、URL以及视频文件(.mp4)设置壁纸,并且可以指定壁纸的位置(HOME、LOCK或BOTH)。此外,它还提供了打开原生壁纸选择器的功能。

安装

1. 添加依赖

在项目的pubspec.yaml文件中添加以下内容:

dependencies:
  async_wallpaper: ^2.1.0

2. 安装依赖

通过命令行安装依赖:

  • 使用pub:
    pub get
    
  • 使用flutter:
    flutter pub get
    

3. 导入库

在Dart代码中导入async_wallpaper库:

import 'package:async_wallpaper/async_wallpaper.dart';

使用方法

基本用法

AsyncWallpaper类提供了多个静态方法用于设置壁纸:

从文件路径设置壁纸

await AsyncWallpaper.setWallpaperFromFile(
    filePath: file.path,
    wallpaperLocation: AsyncWallpaper.HOME_SCREEN,
    goToHome: true,
    toastDetails: ToastDetails.success(),
    errorToastDetails: ToastDetails.error(),
);

从URL设置壁纸

await AsyncWallpaper.setWallpaper(
    url: url,
    wallpaperLocation: AsyncWallpaper.HOME_SCREEN,
    goToHome: true,
    toastDetails: ToastDetails.success(),
    errorToastDetails: ToastDetails.error(),
);

设置动态壁纸(仅支持本地文件)

var file = await DefaultCacheManager().getSingleFile(liveUrl);
await AsyncWallpaper.setLiveWallpaper(
    filePath: file.path,
    goToHome: true,
    toastDetails: ToastDetails.success(),
    errorToastDetails: ToastDetails.error(),
);

打开原生壁纸选择器

await AsyncWallpaper.openWallpaperChooser(
    goToHome: true,
    toastDetails: ToastDetails.wallpaperChooser(),
    errorToastDetails: ToastDetails.error(),
);

示例代码

下面是一个完整的示例代码,展示了如何使用async_wallpaper插件来设置壁纸:

import 'dart:async';
import 'package:async_wallpaper/async_wallpaper.dart';
import 'package:flutter/material.dart';
import 'package:flutter/services.dart';
import 'package:flutter_cache_manager/flutter_cache_manager.dart';

void main() {
  runApp(const MaterialApp(home: MyApp()));
}

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

  @override
  State<MyApp> createState() => _MyAppState();
}

class _MyAppState extends State<MyApp> {
  String _platformVersion = 'Unknown';
  String _wallpaperStatus = 'Unknown';
  String url = 'https://images.unsplash.com/photo-1635593701810-3156162e184f';
  String liveUrl = 'https://github.com/codenameakshay/sample-data/raw/main/video3.mp4';
  late bool goToHome;

  @override
  void initState() {
    super.initState();
    goToHome = false;
    initPlatformState();
  }

  Future<void> initPlatformState() async {
    String platformVersion;
    try {
      platformVersion = await AsyncWallpaper.platformVersion ?? 'Unknown platform version';
    } on PlatformException {
      platformVersion = 'Failed to get platform version.';
    }
    if (!mounted) return;
    setState(() {
      _platformVersion = platformVersion;
    });
  }

  Future<void> setWallpaperFromFile() async {
    setState(() {
      _wallpaperStatus = 'Loading';
    });
    var file = await DefaultCacheManager().getSingleFile(url);
    try {
      await AsyncWallpaper.setWallpaperFromFile(
        filePath: file.path,
        wallpaperLocation: AsyncWallpaper.HOME_SCREEN,
        goToHome: goToHome,
        toastDetails: ToastDetails.success(),
        errorToastDetails: ToastDetails.error(),
      );
      setState(() {
        _wallpaperStatus = 'Wallpaper set';
      });
    } on PlatformException {
      setState(() {
        _wallpaperStatus = 'Failed to set wallpaper';
      });
    }
  }

  Future<void> setWallpaperFromUrl() async {
    setState(() {
      _wallpaperStatus = 'Loading';
    });
    try {
      await AsyncWallpaper.setWallpaper(
        url: url,
        wallpaperLocation: AsyncWallpaper.HOME_SCREEN,
        goToHome: goToHome,
        toastDetails: ToastDetails.success(),
        errorToastDetails: ToastDetails.error(),
      );
      setState(() {
        _wallpaperStatus = 'Wallpaper set';
      });
    } on PlatformException {
      setState(() {
        _wallpaperStatus = 'Failed to set wallpaper';
      });
    }
  }

  Future<void> setLiveWallpaper() async {
    setState(() {
      _wallpaperStatus = 'Loading';
    });
    var file = await DefaultCacheManager().getSingleFile(liveUrl);
    try {
      await AsyncWallpaper.setLiveWallpaper(
        filePath: file.path,
        goToHome: goToHome,
        toastDetails: ToastDetails.success(),
        errorToastDetails: ToastDetails.error(),
      );
      setState(() {
        _wallpaperStatus = 'Live Wallpaper set';
      });
    } on PlatformException {
      setState(() {
        _wallpaperStatus = 'Failed to set live wallpaper';
      });
    }
  }

  Future<void> openWallpaperChooser() async {
    setState(() {
      _wallpaperStatus = 'Loading';
    });
    try {
      await AsyncWallpaper.openWallpaperChooser(
        goToHome: goToHome,
        toastDetails: ToastDetails.wallpaperChooser(),
        errorToastDetails: ToastDetails.error(),
      );
      setState(() {
        _wallpaperStatus = 'Opened wallpaper chooser';
      });
    } on PlatformException {
      setState(() {
        _wallpaperStatus = 'Failed to open wallpaper chooser';
      });
    }
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: const Text('Async Wallpaper Example'),
      ),
      body: SingleChildScrollView(
        child: Column(
          children: [
            Center(
              child: Text('Running on: $_platformVersion\n'),
            ),
            SwitchListTile(
              title: const Text('Go to home after setting wallpaper'),
              value: goToHome,
              onChanged: (value) {
                setState(() {
                  goToHome = value;
                });
              },
            ),
            ElevatedButton(
              onPressed: setWallpaperFromFile,
              child: _wallpaperStatus == 'Loading'
                  ? const CircularProgressIndicator()
                  : const Text('Set wallpaper from file'),
            ),
            Text('Wallpaper status: $_wallpaperStatus\n'),
            ElevatedButton(
              onPressed: setWallpaperFromUrl,
              child: _wallpaperStatus == 'Loading'
                  ? const CircularProgressIndicator()
                  : const Text('Set wallpaper from URL'),
            ),
            Text('Wallpaper status: $_wallpaperStatus\n'),
            ElevatedButton(
              onPressed: setLiveWallpaper,
              child: _wallpaperStatus == 'Loading'
                  ? const CircularProgressIndicator()
                  : const Text('Set live wallpaper'),
            ),
            Text('Wallpaper status: $_wallpaperStatus\n'),
            ElevatedButton(
              onPressed: openWallpaperChooser,
              child: _wallpaperStatus == 'Loading'
                  ? const CircularProgressIndicator()
                  : const Text('Open wallpaper chooser'),
            ),
            Text('Wallpaper status: $_wallpaperStatus\n'),
          ],
        ),
      ),
    );
  }
}

注意事项

  • 权限:确保应用具有设置壁纸所需的权限。
  • 文件下载:对于从URL设置壁纸的情况,建议使用flutter_cache_manager等库先将文件下载到本地再进行设置。
  • 平台差异:目前此插件仅支持Android平台。

希望这个指南能帮助你更好地理解和使用async_wallpaper插件!如果你有任何问题或需要进一步的帮助,请随时提问。


更多关于Flutter异步设置壁纸插件async_wallpaper的使用的实战系列教程也可以访问 https://www.itying.com/category-92-b0.html

1 回复

更多关于Flutter异步设置壁纸插件async_wallpaper的使用的实战系列教程也可以访问 https://www.itying.com/category-92-b0.html


当然,以下是如何在Flutter项目中使用async_wallpaper插件来异步设置壁纸的示例代码。

首先,确保你已经在pubspec.yaml文件中添加了async_wallpaper依赖:

dependencies:
  flutter:
    sdk: flutter
  async_wallpaper: ^最新版本号 # 请替换为实际发布的最新版本号

然后运行flutter pub get来安装依赖。

接下来,在你的Flutter项目中,你可以按照以下步骤使用async_wallpaper插件:

  1. 导入插件

在你的Dart文件中导入async_wallpaper插件:

import 'package:async_wallpaper/async_wallpaper.dart';
  1. 请求权限(如果需要):

由于设置壁纸可能需要存储权限,请确保在Android和iOS项目中正确配置权限,并在代码中请求权限(如果需要)。以下是一个简单的权限请求示例(使用permission_handler插件):

import 'package:permission_handler/permission_handler.dart';

Future<void> requestPermissions() async {
  var status = await Permission.storage.status;
  if (!status.isGranted) {
    Map<Permission, PermissionStatus> statuses = await Permission.storage.request();
    status = statuses[Permission.storage]!;
  }
  if (!status.isGranted) {
    // 处理权限被拒绝的情况
  }
}
  1. 设置壁纸

以下是一个完整的示例,展示如何使用async_wallpaper插件来设置壁纸:

import 'package:flutter/material.dart';
import 'package:async_wallpaper/async_wallpaper.dart';
import 'package:permission_handler/permission_handler.dart';

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

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: Text('设置壁纸示例'),
        ),
        body: Center(
          child: ElevatedButton(
            onPressed: () async {
              await requestPermissions();
              
              // 本地图片路径或网络图片URL
              String imagePathOrUrl = 'assets/your_image.jpg'; // 使用本地图片
              // String imagePathOrUrl = 'https://example.com/your_image.jpg'; // 使用网络图片

              try {
                await AsyncWallpaper.setImage(
                  source: AsyncWallpaperSource.network(imagePathOrUrl), // 使用网络图片时使用此选项
                  // source: AsyncWallpaperSource.asset(imagePathOrUrl), // 使用本地图片时使用此选项,注意:本地图片路径不需要'assets/'前缀
                );
                
                ScaffoldMessenger.of(context).showSnackBar(
                  SnackBar(content: Text('壁纸设置成功!')),
                );
              } catch (e) {
                ScaffoldMessenger.of(context).showSnackBar(
                  SnackBar(content: Text('设置壁纸失败: ${e.message}')),
                );
              }
            },
            child: Text('设置壁纸'),
          ),
        ),
      ),
    );
  }
}

Future<void> requestPermissions() async {
  var status = await Permission.storage.status;
  if (!status.isGranted) {
    Map<Permission, PermissionStatus> statuses = await Permission.storage.request();
    status = statuses[Permission.storage]!;
  }
  if (!status.isGranted) {
    throw Exception('存储权限被拒绝');
  }
}

注意

  • 使用本地图片时,请确保图片已经添加到pubspec.yamlassets部分。
  • 使用网络图片时,请确保图片URL是可访问的,并且应用具有访问网络的权限。

这个示例展示了如何请求存储权限(如果需要),然后使用async_wallpaper插件来设置壁纸。你可以根据实际需求进行调整和扩展。

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