Texture class

A rectangle upon which a backend texture is mapped.

Backend textures are images that can be applied (mapped) to an area of the Flutter view. They are created, managed, and updated using a platform-specific texture registry. This is typically done by a plugin that integrates with host platform video player, camera, or OpenGL APIs, or similar image sources.

A texture widget refers to its backend texture using an integer ID. Texture IDs are obtained from the texture registry and are scoped to the Flutter view. Texture IDs may be reused after deregistration, at the discretion of the registry. The use of texture IDs currently unknown to the registry will silently result in a blank rectangle.

Texture widgets are repainted autonomously as dictated by the backend (e.g. on arrival of a video frame). Such repainting generally does not involve executing Dart code.

The size of the rectangle is determined by its parent widget, and the texture is automatically scaled to fit.

See also:



Texture({Key? key, required int textureId, bool freeze = false, FilterQuality filterQuality = FilterQuality.low})
Creates a widget backed by the texture identified by textureId, and use filterQuality to set texture's FilterQuality.


filterQuality FilterQuality
The quality of sampling the texture and rendering it on screen.
freeze bool
When true the texture will not be updated with new frames.
hashCode int
The hash code for this object.
no setterinherited
key Key?
Controls how one widget replaces another widget in the tree.
runtimeType Type
A representation of the runtime type of the object.
no setterinherited
textureId int
The identity of the backend texture.


createElement() LeafRenderObjectElement
RenderObjectWidgets always inflate to a RenderObjectElement subclass.
createRenderObject(BuildContext context) TextureBox
Creates an instance of the RenderObject class that this RenderObjectWidget represents, using the configuration described by this RenderObjectWidget.
debugDescribeChildren() List<DiagnosticsNode>
Returns a list of DiagnosticsNode objects describing this node's children.
debugFillProperties(DiagnosticPropertiesBuilder properties) → void
Add additional properties associated with the node.
didUnmountRenderObject(covariant RenderObject renderObject) → void
A render object previously associated with this widget has been removed from the tree. The given RenderObject will be of the same type as returned by this object's createRenderObject.
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
toDiagnosticsNode({String? name, DiagnosticsTreeStyle? style}) DiagnosticsNode
Returns a debug representation of the object that is used by debugging tools and by DiagnosticsNode.toStringDeep.
toString({DiagnosticLevel minLevel = DiagnosticLevel.info}) String
A string representation of this object.
toStringDeep({String prefixLineOne = '', String? prefixOtherLines, DiagnosticLevel minLevel = DiagnosticLevel.debug}) String
Returns a string representation of this node and its descendants.
toStringShallow({String joiner = ', ', DiagnosticLevel minLevel = DiagnosticLevel.debug}) String
Returns a one-line detailed description of the object.
toStringShort() String
A short, textual description of this widget.
updateRenderObject(BuildContext context, covariant TextureBox renderObject) → void
Copies the configuration described by this RenderObjectWidget to the given RenderObject, which will be of the same type as returned by this object's createRenderObject.


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