ImagePixels class

The ImagePixels widget lets you define an image through an imageProvider, and then use a builder to build a child widget that depends on the image dimension and the color of its pixels.

The default constructor lets you provide the imageProvider, the builder, and a defaultColor to be used when reading pixels outside of the image (or while the image is downloading).

The ImagePixels.container constructor creates a container with a background-color that is the same color as the image pixel at the colorAlignment position.

Inheritance

Constructors

ImagePixels({required ImageProvider<Object>? imageProvider, Color defaultColor = Colors.grey, required BuilderFromImage builder})
Lets you provide the imageProvider, the builder, as well as a defaultColor to be used when reading pixels outside the image (or while the image is downloading). If imageProvider is null, the image will be empty and it will all be painted with the defaultColor.
const
ImagePixels.container({required ImageProvider<Object>? imageProvider, Color defaultColor = Colors.grey, Alignment colorAlignment = Alignment.topLeft, Widget? child})
Returns a container with the given child. The background color of the container is given by the pixel in the colorAlignment position of the image pointed by the imageProvider. The defaultColor will be used for pixels outside the image (or while the image is downloading). If imageProvider is null, the image will be empty and it will all be painted with the defaultColor.

Properties

builder → BuilderFromImage
final
defaultColor → Color
final
hashCode → int
The hash code for this object.
no setterinherited
imageProvider → ImageProvider<Object>?
final
key → Key?
Controls how one widget replaces another widget in the tree.
finalinherited
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited

Methods

createElement() → StatefulElement
Creates a StatefulElement to manage this widget's location in the tree.
inherited
createState() → _ImagePixelsState
Creates the mutable state for this widget at a given location in the tree.
override
debugDescribeChildren() → List<DiagnosticsNode>
Returns a list of DiagnosticsNode objects describing this node's children.
inherited
debugFillProperties(DiagnosticPropertiesBuilder properties) → void
Add additional properties associated with the node.
inherited
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toDiagnosticsNode({String? name, DiagnosticsTreeStyle? style}) → DiagnosticsNode
Returns a debug representation of the object that is used by debugging tools and by DiagnosticsNode.toStringDeep.
inherited
toString({DiagnosticLevel minLevel = DiagnosticLevel.info}) → String
A string representation of this object.
inherited
toStringDeep({String prefixLineOne = '', String? prefixOtherLines, DiagnosticLevel minLevel = DiagnosticLevel.debug}) → String
Returns a string representation of this node and its descendants.
inherited
toStringShallow({String joiner = ', ', DiagnosticLevel minLevel = DiagnosticLevel.debug}) → String
Returns a one-line detailed description of the object.
inherited
toStringShort() → String
A short, textual description of this widget.
inherited

Operators

operator ==(Object other) → bool
The equality operator.
inherited