async_wallpaper

Flutter plugin to set wallpapers on Android and save them to Photos on iOS.

• Static wallpaper from a URL, file path, content URI, or bytes
• Home, lock, or both targets, with a separate result for each
• Video and OpenGL live wallpapers
• Scheduled wallpaper rotation
• Capability checks before you show an action

Screenshots

Static wallpaper	Capabilities	More APIs	iOS

Video live wallpaper: home screen before, the system preview, and the applied video.

Scale modes: centerCrop, fitCenter, center, fill, and stretch on a 1080x2400 phone.

Requirements

• Flutter >=3.41.4, Dart >=3.9.0
• Android minSdk 24
• iOS 13.0+ (download only)

Installation

dependencies:
  async_wallpaper: ^3.3.0

import 'package:async_wallpaper/async_wallpaper.dart';

Usage

Check capabilities

final c = await AsyncWallpaper.getCapabilities();
if (c.supportsStaticWallpaper && c.canSetWallpaper) {
  // Show the action.
}

Static wallpaper

final result = await AsyncWallpaper.applyWallpaper(
  const StaticWallpaperRequest(
    source: WallpaperSource.url('https://example.com/wallpaper.jpg'),
    target: WallpaperTarget.both,
    scaleMode: WallpaperScaleMode.centerCrop,
    strategy: WallpaperApplyStrategy.direct,
  ),
);
if (result.status == WallpaperOperationStatus.applied) {
  // For `both`, read `result.home` and `result.lock`.
}

Sources: WallpaperSource.url (HTTPS), filePath, contentUri, bytes.

Video live wallpaper

final req = VideoWallpaperRequest(
  source: WallpaperSource.filePath('/storage/emulated/0/Download/loop.mp4'),
  target: WallpaperTarget.home,
);
final prepared = await AsyncWallpaper.setVideoWallpaper(req);
if (prepared.status == WallpaperOperationStatus.awaitingUserConfirmation) {
  await AsyncWallpaper.openLiveWallpaperPreview(req);
}

previewOpened means the system preview opened, not that the user applied it.

OpenGL live wallpaper

Check supportsOpenGlLiveWallpaper first, then call setOpenGlLiveWallpaper with a GLSL ES 1.00 fragment shader (1-60 FPS).

Wallpaper rotation

await AsyncWallpaper.startWallpaperRotation(
  const WallpaperRotationRequest(
    sources: <WallpaperRotationSource>[
      WallpaperRotationSource(sourceType: WallpaperSourceType.url, source: 'https://example.com/1.jpg'),
      WallpaperRotationSource(sourceType: WallpaperSourceType.file, source: '/storage/emulated/0/Download/2.jpg'),
    ],
    target: WallpaperTarget.both,
    intervalMinutes: 60,
    order: WallpaperRotationOrder.shuffle,
    triggers: <WallpaperRotationTrigger>{
      WallpaperRotationTrigger.interval,
      WallpaperRotationTrigger.charging,
      WallpaperRotationTrigger.timeOfDay,
    },
    activeHoursStart: 6,
    activeHoursEnd: 23,
  ),
);
await AsyncWallpaper.getWallpaperRotationStatus();
await AsyncWallpaper.rotateWallpaperNow();
await AsyncWallpaper.stopWallpaperRotation();

The minimum interval is 15 minutes. URLs must be HTTPS. Rotation uses WorkManager and needs no foreground service.

Download

await AsyncWallpaper.downloadWallpaper(
  const DownloadWallpaperRequest(url: 'https://example.com/wallpaper.jpg'),
);

• iOS: add NSPhotoLibraryAddUsageDescription to Info.plist.
• Android 9 and older: declare WRITE_EXTERNAL_STORAGE with android:maxSdkVersion="28" and request it before you call downloadWallpaper.

Platform support

	Android	iOS	Web/desktop
Static, live, OpenGL, rotation	Yes	unsupported	unsupported
Download	Yes	Yes	unsupported

• Background work (for example WorkManager): use WallpaperApplyStrategy.direct. The cropper, picker, and live previews need a foreground Activity and return foregroundRequired otherwise.
• The plugin shows no toasts and does not navigate. Your app shows its own UI from the result.

Docs

• Example app
• Android compatibility
• Migration guide
• Changelog

Contributing

Report bugs with the bug report template and include the device model, Android version, and steps to reproduce. Request features with the feature request template. Read CONTRIBUTING.md before you open a PR.

License

MIT