MediaThumbnailProvider class
Builds a thumbnail using ImageProvider.
- Inheritance
-
- Object
- ImageProvider<
MediaThumbnailProvider> - MediaThumbnailProvider
Constructors
- MediaThumbnailProvider({required AssetEntity media, ThumbnailSize size = const ThumbnailSize(400, 400), ThumbnailFormat format = ThumbnailFormat.jpeg, int quality = 100, double scale = 1})
-
Builds a thumbnail using ImageProvider.
const
Properties
- format → ThumbnailFormat
-
Which format the thumbnail should be, generally support JPG and PNG.
final
- hashCode → int
-
The hash code for this object.
no setteroverride
- media → AssetEntity
-
Media to load
final
- quality → int
-
The quality value for the thumbnail.
final
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- scale → double
-
Scale of the image.
final
- size → ThumbnailSize
-
The thumbnail size.
final
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(
MediaThumbnailProvider key, DecoderBufferCallback decode) → ImageStreamCompleter -
Converts a key into an ImageStreamCompleter, and begins fetching the
image.
inherited
-
loadImage(
MediaThumbnailProvider 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< MediaThumbnailProvider> -
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, MediaThumbnailProvider 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 ==(
dynamic other) → bool -
The equality operator.
override