AssetBundleImageProvider class Null safety
A subclass of ImageProvider that knows about AssetBundles.
This factors out the common logic of AssetBundle-based ImageProvider classes, simplifying what subclasses must implement to just obtainKey.
- Inheritance
-
- Object
- ImageProvider<
AssetBundleImageKey> - AssetBundleImageProvider
- Implementers
Constructors
- AssetBundleImageProvider()
-
Abstract const constructor. This constructor enables subclasses to provide
const constructors so that they can be used in const expressions.
const
Properties
- hashCode → int
-
The hash code for this object.
read-onlyinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
read-onlyinherited
Methods
-
createStream(
ImageConfiguration configuration) → ImageStream -
Called by resolve to create the ImageStream it returns.
protected">@protectedinherited
-
evict(
{ImageCache? cache, ImageConfiguration configuration = ImageConfiguration.empty}) → Future< bool> -
Evicts an entry from the image cache.
inherited
-
load(
AssetBundleImageKey key, DecoderCallback decode) → ImageStreamCompleter -
Converts a key into an ImageStreamCompleter, and begins fetching the
image.
override
-
loadBuffer(
AssetBundleImageKey key, DecoderBufferCallback decode) → ImageStreamCompleter -
Converts a key into an ImageStreamCompleter, and begins fetching the
image.
override
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a non-existent 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< AssetBundleImageKey> -
Converts an ImageProvider's settings plus an ImageConfiguration to a key
that describes the precise image to load.
inherited
-
resolve(
ImageConfiguration configuration) → ImageStream -
Resolves this image provider using the given
configuration, returning an ImageStream.nonVirtual">@nonVirtualinherited -
resolveStreamForKey(
ImageConfiguration configuration, ImageStream stream, AssetBundleImageKey key, ImageErrorListener handleError) → void -
Called by resolve with the key returned by obtainKey.
protected">@protectedinherited
-
toString(
) → String -
A string representation of this object.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited