QOI class

Represents the information found inside a QOI image, whether the image is QOI formatted yet, or not

Can be constructed from a:

Can be converted to a:

  • raw binary file, with the toRaw method
  • PNG image, with the toPNG method
  • QOI image, with the toQOI method
Available extensions

Constructors

QOI.fromRaw({required Uint8List bytes, required int width, required int height, Channels channels = Channels.rgba, int colorspace = 0})
Constructor that does not do any automatic decoding

Properties

hashCode → int
The hash code for this object.
no setterinherited
height → int
Image height in pixels
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
width → int
Image width in pixels
final

Methods

noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toImage() → Future<Image>

Available on QOI, provided by the FlutterQOIExts extension

Create an ui.Image from this QOI data, in future
toImageWidget({Widget? loadingWidget}) → FutureBuilder<Image>

Available on QOI, provided by the FlutterQOIExts extension

Using QOI data, create a FutureBuilder which will show an ui.Image once ready
toPNG() → Uint8List
Encode to a PNG image, using the Image library
toQOI() → Uint8List
Encode to a QOI image, using the built-in encoder
toRaw() → Uint8List
Dump to a raw binary image, without any conversions
toString() → String
A string representation of this object.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited

Static Methods

fromPNG(Uint8List raw, {Channels? overrideChannels, int? overrideColorspace}) → QOI
Decode from a PNG image, using the Image library
fromQOI(Uint8List raw) → QOI
Decode from a QOI image, using the built-in decoder