HttpImage class
Fetches the given URL from the network, associating it with the given scale.
The image will be cached regardless of cache headers from the server.
See also:
- Inheritance
-
- Object
- ImageProvider<
HttpImage> - HttpImage
- Annotations
Constructors
-
HttpImage(Uri url, {double scale = 1.0, Map<
String, String> ? headers, Client? client}) - Creates an object that fetches the image at the given URL.
-
HttpImage.string(String url, {double scale = 1.0, Map<
String, String> ? headers, Client? client}) - Creates an object that fetches the image at the given URL.
Properties
- client → Client
-
client will be the default
Client
if not set.final - hashCode → int
-
The hash code for this object.
no setteroverride
-
headers
→ Map<
String, String> ? -
The HTTP headers that will be used with
Client.get
to fetch image from network.final - 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.
final
- url → Uri
-
The URL from which the image will be fetched.
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(
HttpImage key, DecoderBufferCallback decode) → ImageStreamCompleter -
Converts a key into an ImageStreamCompleter, and begins fetching the
image.
inherited
-
loadImage(
HttpImage 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< HttpImage> -
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, HttpImage 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
Static Properties
- defaultClient ↔ Client
-
Can be set to override the default
Client
for the HttpImage.getter/setter pair