ExtendedNetworkImageProvider class Null safety

Inheritance

Constructors

ExtendedNetworkImageProvider(String url, {double scale, Map<String, String>? headers, bool cache, int retries, Duration? timeLimit, Duration timeRetry, CancellationToken? cancelToken, String? cacheKey, bool printError, bool cacheRawData, String? imageCacheName})
Creates an object that fetches the image at the given URL. [...]
factory

Properties

cache bool
Whether cache image to local
read-only
cacheKey String?
Custom cache key
read-only
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.
read-only
cancelToken CancellationToken?
Token to cancel network request
read-only
hashCode int
The hash code for this object. [...]
read-only, inherited
headers Map<String, String>?
The HTTP headers that will be used with HttpClient.get to fetch image from network.
read-only
imageCacheName String?
The name of ImageCache, you can define custom ImageCache to store this provider.
read-only
printError bool
print error
read-only
retries int
The time to retry to request
read-only
runtimeType Type
A representation of the runtime type of the object.
read-only, inherited
scale double
The scale to place in the ImageInfo object of the image.
read-only
timeLimit Duration?
Time Limit to request image
read-only
timeRetry Duration
The time duration to retry to request
read-only
url String
The URL from which the image will be fetched.
read-only

Methods

createStream(ImageConfiguration configuration) ImageStream
Called by resolve to create the ImageStream it returns. [...]
@protected, inherited
evict({ImageCache? cache, ImageConfiguration configuration = ImageConfiguration.empty}) Future<bool>
Evicts an entry from the image cache. [...]
inherited
getNetworkImageData({StreamController<ImageChunkEvent>? chunkEvents}) Future<Uint8List?>
get network image data from cached
load(ExtendedNetworkImageProvider key, DecoderCallback 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<ExtendedNetworkImageProvider>
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, inherited
resolveStreamForKey(ImageConfiguration configuration, ImageStream stream, ExtendedNetworkImageProvider key, ImageErrorListener handleError) → void
Called by resolve with the key returned by obtainKey. [...]
@protected, inherited
toString() String
A string representation of this object. [...]
inherited

Operators

operator ==(Object other) bool
The equality operator. [...]
inherited

Static Properties

httpClient → dynamic
HttpClient for network, it's null on web
read-only