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wallpaper_handler

A Flutter package for easy wallpaper customization on Android devices – get wallpaper, change Home Screen, Lock Screen, or both with simplicity.

Usage

Installation

Add the following dependency to your Flutter project's pubspec.yaml file:

dependencies:
  wallpaper_handler: ^0.0.2

Include the following import statement in your Dart library:

import 'package:wallpaper_handler/wallpaper_handler.dart';

The wallpaper_handler plugin provides an enum named WallpaperLocation to specify different wallpaper locations.

enum WallpaperLocation {
  /// Wallpaper for the home screen.
  homeScreen,

  /// Wallpaper for the lock screen.
  lockScreen,

  /// Wallpaper for both the home and lock screens.
  bothScreens,
}

Examples

Setting Wallpaper from File

const filePath = "/path/to/file/on/disk";
const wallpaperLocation = WallpaperLocation.homeScreen;

// Without crop bounds
bool result = await WallpaperHandler.instance.setWallpaperFromFile(path, location);

// With crop bounds
const cropBounds = Rect.fromLTRB(100, 100, 200, 100);
bool result = await WallpaperHandler.instance.setWallpaperFromFile(path, location, cropBounds: cropBounds);

Setting Wallpaper from Asset

const assetPath = 'assets/images/test.jpg';
const wallpaperLocation = WallpaperLocation.homeScreen;

// Without crop bounds
bool result = await WallpaperHandler.instance.setWallpaperFromAsset(path, location);

// With crop bounds
const cropBounds = Rect.fromLTRB(100, 100, 200, 100);
bool result = await WallpaperHandler.instance.setWallpaperFromAsset(path, location, cropBounds: cropBounds);

Loading from a URL (with CacheManager, the image is saved to app files as well)

If you're loading a Wallpaper from a URL, you should save it to the disk first, then use the path of the saved image file. Add flutter_cache_manager or any other dependency you'd like:

dependencies:
  flutter_cache_manager: "^1.1.3"

And in dart code

String url = "";
var file = await DefaultCacheManager().getSingleFile(url);
bool result = await WallpaperHandler.instance.setWallpaperFromFile(file.path, location);

Retrieving Current Wallpaper

To get the device wallpaper, you need to add the following permission to your app's AndroidManifest.xml file:

<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
<uses-permission android:name="android.permission.MANAGE_EXTERNAL_STORAGE" />

You also need to request the permission at runtime before using the plugin.

The getWallpaper method retrieves the device wallpaper but it only allows specifying homeScreen or lockScreen as the wallpaper location. This method returns a Uint8List? representing the phone's wallpaper.

Uint8List? result = await WallpaperHandler.instance.getWallpaper(WallpaperLocation.homeScreen);

Make sure to handle the result appropriately, as it may be null if no wallpaper is set or if there are errors during retrieval.

Contributor's Guidelines:

Welcome contributions! Please create pull requests on the 'develop' branch. Thanks!

Reporting Issues/Requests:

Please share the following to help us identify the issue's root cause.

  • Library version
  • Code snippet
  • Logs (if applicable)
  • Device details (Manufacturer, OS version, etc.)
  • Screenshot/video with issue reproduction steps.

License Information:

The wallpaper_handler is licensed under MIT-licensed.

Share Your Projects:

We'd love to see your projects using our component. Email us at sahkaritech@gmail.com. Feel free to reach out with questions or suggestions.