wallpaper 1.2.0

The Purpose of the plugin is to set wallpaper from url. Only supported to android. Internally using WallpaperManager to set wallpaper.

1.2.0

• Modernized the Android implementation while preserving the existing Dart API.
• Fixed Android wallpaper calls to capture request arguments per call, avoiding shared mutable state during concurrent operations.
• Improved Android activity lifecycle handling for the system wallpaper picker.
• Added Android API-level guards for lock screen and both-screen wallpaper operations.
• Reduced large-image memory pressure with bounds decoding, bitmap sampling, and bitmap recycling.
• Removed unnecessary legacy storage permissions from the Android manifest.
• Updated README guidance for app-private storage and concurrent download filenames.
• Added native argument-validation tests.
• Added additive APIs for setting wallpapers from local files, Uint8List bytes, and Flutter assets.
• Added a unified setWallpaperFromSource API with typed success/failure results and categorized wallpaper exceptions.
• Added typed, cancellable downloads with headers, timeouts, cache reuse, and plugin-managed temporary cache cleanup.
• Added Wallpaper.recommendedWallpaperSize() for reading platform-recommended wallpaper dimensions.
• Added Wallpaper.openWallpaperChooser() for launching Android's system wallpaper chooser.
• Added opt-in WallpaperFit modes for source-based wallpaper APIs without changing legacy RequestSizeOptions behavior.
• Added WallpaperAlignment for opt-in crop/placement control with modern source API fit modes.