ImageSource class abstract
Source for an Image widget. Provides decoded pixels and caches decoding.
Decoding happens synchronously on the first decode call, normally when an Image mounts — fine for bundled assets and config-driven previews; not for HTTP/large-PNG cases (decode upstream and pass via ImageSource.decoded instead).
Constructors
- ImageSource.bytes(Uint8List bytes)
-
Backed by an in-memory byte buffer (PNG / JPEG / BMP / TIFF /
GIF — whatever
package:imagerecognizes).factory - ImageSource.decoded(Image image, {Uint8List? encodedPng})
-
An already-decoded image (e.g. produced by
img.decodePng). Use this when the caller manages decoding (HTTP, large files, transformations).factory - ImageSource.file(String path)
-
Backed by a file on disk. On a cache miss, read synchronously during the
first decode.
factory
Properties
- hashCode → int
-
The hash code for this object.
no setterinherited
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
Methods
-
decode(
) → Image - Decoded pixel data. Implementations cache.
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
toString(
) → String -
A string representation of this object.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited