FutureImageProvider<T, X extends Object> class

A wrapper ImageProvider that resolves a Future to get the actual data (e.g. a URL string) needed to build the delegate ImageProvider.

Inheritance
Annotations

Constructors

FutureImageProvider({required Future<T> future, bool ignoreErrors = false, required ImageProvider<Object> providerBuilder(T result)})
const

Properties

future → Future<T>
The future that must resolve before the image can be loaded.
final
hashCode → int
The hash code for this object.
no setteroverride
ignoreErrors → bool
final
providerBuilder → ImageProvider<Object> Function(T result)
A builder that creates the actual ImageProvider once the future resolves.
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited

Methods

createStream(ImageConfiguration configuration) → ImageStream
Called by resolve to create the ImageStream it returns.
inherited
evict({ImageCache? cache, ImageConfiguration configuration = ImageConfiguration.empty}) → Future<bool>
Evicts an entry from the image cache.
inherited
loadBuffer(X key, DecoderBufferCallback decode) → ImageStreamCompleter
Converts a key into an ImageStreamCompleter, and begins fetching the image.
inherited
loadImage(Object 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<X>
Converts an ImageProvider's settings plus an ImageConfiguration to a key that describes the precise image to load.
override
resolve(ImageConfiguration configuration) → ImageStream
Resolves this image provider using the given configuration, returning an ImageStream.
inherited
resolveStreamForKey(ImageConfiguration configuration, ImageStream stream, X 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