ExtendedFileImageProvider class

Inheritance
Mixed in types

Constructors

ExtendedFileImageProvider(File file, {double scale = 1.0, bool cacheRawData = false, String? imageCacheName})
const

Properties

cacheRawData → bool
Whether cache raw data if you need to get raw data directly. For example, we need raw image data to edit, but ui.Image.toByteData() is very slow. So we cache the image data here.
final
file → File
The file to decode into an image.
finalinherited
hashCode → int
The hash code for this object.
no setteroverride
imageCache → ImageCache
The ImageCache which this is stored in it.
no setterinherited
imageCacheName → String?
The name of ImageCache, you can define custom ImageCache to store this provider.
final
rawImageData → Uint8List
The raw data of image
no setterinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
scale → double
The scale to place in the ImageInfo object of the image.
finalinherited

Methods

createStream(ImageConfiguration configuration) → ImageStream
Called by resolve to create the ImageStream it returns.
inherited
evict({ImageCache? cache, ImageConfiguration configuration = ImageConfiguration.empty, bool includeLive = true}) → Future<bool>
Evicts an entry from the image cache.
inherited
instantiateImageCodec(Uint8List data, ImageDecoderCallback decode) → Future<Codec>
Override this method, so that you can handle raw image data, for example, compress
inherited
loadBuffer(FileImage key, DecoderBufferCallback decode) → ImageStreamCompleter
Converts a key into an ImageStreamCompleter, and begins fetching the image.
inherited
loadImage(FileImage key, ImageDecoderCallback decode) → ImageStreamCompleter
Converts a key into an ImageStreamCompleter, and begins fetching the image.
override
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
obtainCacheStatus({required ImageConfiguration configuration, ImageErrorListener? handleError}) → Future<ImageCacheStatus?>
Returns the cache location for the key that this ImageProvider creates.
inherited
obtainKey(ImageConfiguration configuration) → Future<FileImage>
Converts an ImageProvider's settings plus an ImageConfiguration to a key that describes the precise image to load.
inherited
obtainNewKey<S>(S createNewKey(FileImage value), Future<FileImage> obtainKey()) → Future<S>
obtain new key base on old key
inherited
resolve(ImageConfiguration configuration) → ImageStream
Resolves this image provider using the given configuration, returning an ImageStream.
inherited
resolveStreamForKey(ImageConfiguration configuration, ImageStream stream, FileImage key, ImageErrorListener handleError) → void
Called by resolve with the key returned by obtainKey.
inherited
toString() → String
A string representation of this object.
override

Operators

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