ImageCompressorWeb class

Web backend: encodes in-browser via OffscreenCanvas.convertToBlob. No pica script tag, no extra deps — the differentiator vs flutter_image_compress on web. HEIC cannot be encoded in a browser and returns UnsupportedFormatError.

Inheritance

• Object
• PlatformInterface
• ImageCompressorPlatform
• ImageCompressorWeb

Constructors

ImageCompressorWeb()

Properties

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

encodeOnce(EncodeRequest request) → Future<EncodeResult>

Encode request exactly once and return the resulting bytes plus decoded dimensions. Backends must decode at a reduced size when maxWidth/ maxHeight are set (downsample-on-decode) to avoid loading huge bitmaps into memory.

override

encodeToSize(EncodeSizeRequest request) → Future<EncodeResult>

Decode request once, then binary-search quality down to minQuality until the output fits under maxBytes. Returns the best fitting result, or (if nothing fits) the smallest achievable with reachedTarget false.

override

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

probeSize(Uint8List bytes) → Future<(int, int)>

Read just the pixel dimensions of bytes from the image header, without decoding the pixels. Returns (width, height).

override

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited

Static Methods

registerWith(Registrar registrar) → void