flutter_image_compress_lite 2.4.0

Minimal, legacy-free image compression for Flutter (Android + iOS) — no CocoaPods, SPM-only, minimal native deps. Drop-in replacement for flutter_image_compress.

2.4.0

• BREAKING: removed the androidOomRetries parameter from compressWithFile and compressAndGetFile. The old retry-on-OOM logic was Android-only and silently produced an empty result when retries exhausted; now an OutOfMemoryError surfaces as a COMPRESS_ERROR PlatformException like other native failures. Callers that passed the argument need to drop it.

2.3.1

• Docs and metadata only — README cleanup, package description, and a fork copyright line. No API or behavior changes.

2.3.0

Internal cleanup — no public API changes.

• Android (behavior change): read/decode/write failures now throw a PlatformException instead of silently resolving to null, matching iOS. New wire codes: FILE_NOT_FOUND, BAD_IMAGE, WRITE_FAILED, plus a catch-all COMPRESS_ERROR. Callers that previously branched on a null result will now see an exception for genuinely broken input. See the README "Errors" section.
• Android: the three compress* handlers now share a single index-driven CompressArgs parser (mirroring the iOS CompressParams) and a replyCatching helper, replacing the per-handler positional unpacking and try/catch. No wire-format change.
• Dart: compressWithFile / compressAndGetFile now check source existence with async File.exists() instead of existsSync(), so the entry points no longer block the isolate on filesystem I/O.
• iOS: migrated the method-channel handlers to Swift structured concurrency (Swift 6.2). The manual DispatchQueue.global(qos:).async { … } hop is replaced by a Task calling a single @concurrent run(_:) worker; the three near-identical handlers collapse into a Sendable Request parser plus that one worker. Arguments are now read out of FlutterMethodCall synchronously on the calling thread, so no non-Sendable Flutter type crosses the concurrency boundary. Builds under the Swift 6 language mode with strict concurrency.
• iOS BUILD REQUIREMENT: building for iOS now requires Xcode 26+ (Swift 6.2 toolchain). The runtime floor is unchanged — still iOS 15+ (Swift concurrency back-deploys; no iOS-18-only APIs such as Mutex are used).

2.2.0

Internal cleanup — no public API or behavior changes.

• iOS: rewrote the plugin in Swift. The 6 Obj-C .m files + 7 .h headers are replaced by 4 Swift files (ImageCompressPlugin.swift, Compressor.swift, ExifKeeper.swift, UIImage+Scale.swift). No __bridge casts, no manual CFRelease, no include/ public-headers folder, no // Created by cjl … fork comments. The two near-identical compressWithUIImage: / compressDataWithUIImage: methods collapse into one. File-existence and image-decode failures now surface as FlutterError (FILE_NOT_FOUND, BAD_IMAGE) instead of propagating nil. UIGraphicsBeginImageContext (deprecated since iOS 10) is replaced with UIGraphicsImageRenderer; the rotated bounding box is now computed via CGRect.applying(_:) instead of allocating a UIView.
• Android: ResultHandler's thread pool is now owned by the plugin instance and shutdown() in onDetachedFromEngine (was a companion object Executors.newFixedThreadPool(8) that lived for the process lifetime). Re-armed on re-attach.
• Android: dropped the androidx.exifinterface dependency in favor of the platform android.media.ExifInterface (available since API 24, our minSdk). EXIF reads/writes go through the framework class with a 6-line orientation→degrees mapping. androidx.heifwriter:heifwriter:1.1.0 remains — HEIC encoding still goes through it (no platform-native HEIC encoder exists in Bitmap.CompressFormat).
• Android: collapsed 13 Kotlin files into 3 — ImageCompressPlugin.kt, Compressor.kt, Exif.kt — to mirror the iOS Swift layout. Dropped the unused FormatHandler interface, FormatRegister map, and the never-thrown CompressError.
• Android: BitmapFactory decode now uses ARGB_8888 for PNG/WebP/HEIC and keeps RGB_565 for JPEG. Previously all formats decoded as RGB_565, silently dropping the alpha channel for transparency-capable outputs.
• Android: CompressFileHandler.handle reads EXIF rotation from File(path) directly instead of loading the full file into a ByteArray first.
• Android: unknown format index now responds with result.error("UNKNOWN_FORMAT", …) instead of result.success(null). In practice unreachable because the Dart enum can't produce an unknown index, but no longer fails invisibly if the wire format ever desyncs.
• Android: bumped compileSdk 36 → 37 (Android 17). No minSdk change. CI environments may need the API 37 platform package installed.

2.1.1

• iOS: fix iOS build failure introduced in 2.1.0 — corrected selector capitalization to HEIFRepresentationOfImage:format:colorSpace:options: (was heifRepresentationOfImage:, which doesn't exist on CIContext).

2.1.0

User-visible fixes:

• BREAKING: numberOfRetries parameter on compressWithFile / compressAndGetFile renamed to androidOomRetries. The retry behavior was always Android-only (decode OOM → double inSampleSize and recurse); the new name reflects that. iOS ignores the value as before.
• iOS: WebP encoding now throws UnsupportedError up front instead of silently returning null (decoding still works on iOS 14+).
• iOS: HEIC encoding no longer writes through NSTemporaryDirectory() — uses heifRepresentationOfImage: directly. Removes a per-call temp-file leak.
• Dart: validator contract is now consistent — every entry point throws UnsupportedError for unsupported encodings (previously some returned null). The validator only checks the output format; input formats are auto-detected by the native decoder.

Internal cleanup:

• Android: introduced CompressFormat enum to replace 0/1/2/3 magic numbers throughout the handlers and FormatRegister.
• Android: ExifKeeper ported from Java to Kotlin; settings.gradle → settings.gradle.kts.
• Android: bumped Gradle wrapper to 9.5.0, compileSdk to 36.
• Android: removed dead code paths (ResultHandler.replyError, ExifKeeper.copyExifToFile, duplicate Bitmap.compress extensions, System.gc() in OOM retry, pre-Marshmallow inDither branch).
• iOS: introduced ImageCompressFormat NS_ENUM mirroring the Dart/Android enums.
• iOS: removed dead getSystemVersion Obj-C handler (Dart only calls Android for the API 28 check).
• Dart: dropped part/part of in favor of regular libraries with import/export; CompressFormat.nativeValue getter replaces the private _convertTypeToInt helper; default param values centralized in a private _Defaults class.

2.0.3

Merged flutter_image_compress + flutter_image_compress_common into a single standalone package. No federated plugin architecture, no transitive dependencies with podspecs, no CocoaPods required.

• BREAKING: New package name flutter_image_compress_lite — change import
• BREAKING: Remove WebP encoding on iOS (decoding works natively on iOS 14+)
• BREAKING: Require Dart ^3.11.0, Flutter >=3.41.0, iOS 15.0+, Android minSdk 24, AGP 9+
• iOS: SPM only, zero third-party deps
• iOS: keepExif via native ImageIO (no Mantle)
• Android: Kotlin DSL, removed commons-io, bumped exifinterface 1.4.2, heifwriter 1.1.0