Flutter壁纸管理插件flutter_wallpaper_manager的使用

发布于 1周前 作者 ionicwang 来自 Flutter

Flutter壁纸管理插件flutter_wallpaper_manager的使用

flutter_wallpaper_manager 是一个用于在 Android 设备上设置壁纸的 Flutter 插件。它支持主屏幕、锁屏和两者同时设置。

如何使用 flutter_wallpaper_manager

安装插件

首先,在你的 pubspec.yaml 文件中添加 flutter_wallpaper_manager 依赖:

dependencies:
  flutter:
    sdk: flutter
  flutter_wallpaper_manager: ^latest_version # 替换为最新版本号

然后运行 flutter pub get 来安装插件。

设置壁纸

你可以通过以下代码来设置壁纸,需要提供图片路径和位置(主屏幕、锁屏或两者):

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

void setWallpaper(String path) async {
  int location = WallpaperManager.BOTH_SCREEN; // 可以是 Home/Lock Screen
  bool result = await WallpaperManager.setWallpaperFromFile(path, location);
  print('Set wallpaper result: $result');
}

清除壁纸

你也可以清除当前设置的壁纸:

bool result = await WallpaperManager.clear(); // 返回 true/false
print('Clear wallpaper result: $result');

示例 Demo

以下是一个完整的示例应用程序,展示了如何使用 flutter_wallpaper_manager 设置随机壁纸并清除它:

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

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

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

class _MyAppState extends State<MyApp> {
  String _platformVersion = 'Unknown';
  String __heightWidth = "Unknown";

  @override
  void initState() {
    super.initState();
    initAppState();
  }

  Future<void> initAppState() async {
    String platformVersion;
    String _heightWidth;

    try {
      platformVersion = await WallpaperManager.platformVersion ?? 'Unknown platform version';
    } on PlatformException {
      platformVersion = 'Failed to get platform version.';
    }

    try {
      int height = await WallpaperManager.getDesiredMinimumHeight();
      int width = await WallpaperManager.getDesiredMinimumWidth();
      _heightWidth = "Width = $width Height = $height";
    } on PlatformException {
      _heightWidth = "Failed to get Height and Width";
    }

    if (!mounted) return;

    setState(() {
      __heightWidth = _heightWidth;
      _platformVersion = platformVersion;
    });
  }

  Future<void> setWallpaper() async {
    try {
      String url = "https://source.unsplash.com/random";
      int location = WallpaperManager.BOTH_SCREEN; // 或者 location = WallpaperManager.LOCK_SCREEN;
      var file = await DefaultCacheManager().getSingleFile(url);
      final bool result = await WallpaperManager.setWallpaperFromFile(file.path, location);
      print('Set wallpaper result: $result');
    } on PlatformException {
      print('Failed to set wallpaper');
    }
  }

  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      home: Scaffold(
        appBar: AppBar(
          title: const Text('Plugin example app'),
        ),
        body: Center(
          child: Column(
            mainAxisAlignment: MainAxisAlignment.center,
            crossAxisAlignment: CrossAxisAlignment.center,
            children: [
              Text('Running on: $_platformVersion\n'),
              SizedBox(height: 10),
              Text('$__heightWidth\n'),
              SizedBox(height: 10),
              TextButton(
                onPressed: () => setWallpaper(),
                child: Text("Set Random Wallpaper"),
              ),
              SizedBox(height: 10),
              TextButton(
                onPressed: () async {
                  final result = await WallpaperManager.clear();
                  print('Clear wallpaper result: $result');
                },
                child: Text("Clear Wallpaper"),
              ),
            ],
          ),
        ),
      ),
    );
  }
}

这个示例应用包含了一个按钮来设置随机壁纸和另一个按钮来清除壁纸。希望这些信息能帮助你快速上手 flutter_wallpaper_manager 插件!


更多关于Flutter壁纸管理插件flutter_wallpaper_manager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壁纸管理插件flutter_wallpaper_manager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,以下是一个关于如何使用 flutter_wallpaper_manager 插件的详细代码示例。这个插件允许你在Flutter应用中管理设备的壁纸。

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

dependencies:
  flutter:
    sdk: flutter
  flutter_wallpaper_manager: ^latest_version  # 请替换为最新的版本号

然后运行 flutter pub get 来安装依赖。

接下来,你可以在你的Flutter应用中使用 flutter_wallpaper_manager 插件。以下是一个完整的示例代码,展示了如何设置和获取设备壁纸:

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

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

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      title: 'Flutter Wallpaper Manager Demo',
      theme: ThemeData(
        primarySwatch: Colors.blue,
      ),
      home: MyHomePage(),
    );
  }
}

class MyHomePage extends StatefulWidget {
  @override
  _MyHomePageState createState() => _MyHomePageState();
}

class _MyHomePageState extends State<MyHomePage> {
  String? _currentWallpaperPath;

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('Flutter Wallpaper Manager Demo'),
      ),
      body: Padding(
        padding: const EdgeInsets.all(16.0),
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            Text(
              'Current Wallpaper Path:',
              style: TextStyle(fontSize: 20),
            ),
            SizedBox(height: 10),
            Text(
              _currentWallpaperPath ?? 'N/A',
              style: TextStyle(fontSize: 18),
            ),
            SizedBox(height: 20),
            ElevatedButton(
              onPressed: _setWallpaper,
              child: Text('Set Wallpaper'),
            ),
            SizedBox(height: 10),
            ElevatedButton(
              onPressed: _getCurrentWallpaper,
              child: Text('Get Current Wallpaper'),
            ),
          ],
        ),
      ),
    );
  }

  Future<void> _setWallpaper() async {
    // 假设你有一个本地图片路径或者网络图片URL
    String imagePath = 'assets/images/sample.jpg'; // 本地图片路径
    // String imageUrl = 'https://example.com/sample.jpg'; // 网络图片URL(需要先下载到本地)

    try {
      // 如果使用本地图片,直接使用setHomeScreenWallpaper或setLockScreenWallpaper
      // 如果使用网络图片,需要先下载图片到本地,然后使用该路径
      await FlutterWallpaperManager.setHomeScreenWallpaperFromAsset(imagePath);
      // await FlutterWallpaperManager.setLockScreenWallpaperFromAsset(imagePath);
      // await FlutterWallpaperManager.setBothScreensWallpaperFromAsset(imagePath);

      // 如果使用网络图片,可以使用以下代码(假设图片已下载到本地路径imagePath)
      // await FlutterWallpaperManager.setHomeScreenWallpaper(imagePath);
      // await FlutterWallpaperManager.setLockScreenWallpaper(imagePath);
      // await FlutterWallpaperManager.setBothScreensWallpaper(imagePath);

      setState(() {
        _currentWallpaperPath = imagePath;
      });

      ScaffoldMessenger.of(context).showSnackBar(
        SnackBar(content: Text('Wallpaper set successfully!')),
      );
    } catch (e) {
      ScaffoldMessenger.of(context).showSnackBar(
        SnackBar(content: Text('Failed to set wallpaper: $e')),
      );
    }
  }

  Future<void> _getCurrentWallpaper() async {
    try {
      String? wallpaperPath = await FlutterWallpaperManager.getHomeScreenWallpaperPath();
      // String? wallpaperPath = await FlutterWallpaperManager.getLockScreenWallpaperPath();
      // 如果你想知道两个屏幕是否设置了相同的壁纸,可以使用getBothScreensWallpaperPath,但这通常需要设备支持双屏

      setState(() {
        _currentWallpaperPath = wallpaperPath;
      });

      ScaffoldMessenger.of(context).showSnackBar(
        SnackBar(content: Text('Current wallpaper path: $wallpaperPath')),
      );
    } catch (e) {
      ScaffoldMessenger.of(context).showSnackBar(
        SnackBar(content: Text('Failed to get wallpaper path: $e')),
      );
    }
  }
}

在这个示例中,我们创建了一个简单的Flutter应用,它有两个按钮:一个用于设置壁纸,另一个用于获取当前壁纸的路径。_setWallpaper 方法演示了如何从本地资源设置壁纸,而 _getCurrentWallpaper 方法则用于获取当前壁纸的路径。

注意:

  • 如果你要从网络URL设置壁纸,你需要先将图片下载到本地存储,然后使用本地路径设置壁纸。
  • 本地资源图片需要放在 assets 文件夹中,并在 pubspec.yaml 文件中进行配置。

希望这个示例能帮助你理解如何使用 flutter_wallpaper_manager 插件。

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