Package io.flutter.view

Interface TextureRegistry

All Known Implementing Classes:

FlutterRenderer

public interface TextureRegistry

Registry of backend textures used with a single FlutterView instance. Entries may be embedded into the Flutter view using the Texture widget.

Nested Class Summary

Nested Classes

Modifier and Type	Interface	Description
static interface	TextureRegistry.GLTextureConsumer
static interface	TextureRegistry.ImageConsumer
static interface	TextureRegistry.ImageTextureEntry
static interface	TextureRegistry.OnFrameConsumedListener	Listener invoked when the most recent image has been consumed.
static interface	TextureRegistry.OnTrimMemoryListener	Listener invoked when a memory pressure warning was forward.
static enum	TextureRegistry.SurfaceLifecycle	How a TextureRegistry.SurfaceProducer created by createSurfaceProducer() manages the lifecycle of the created surface.
static interface	TextureRegistry.SurfaceProducer	Uses a Surface to populate the texture.
static interface	TextureRegistry.SurfaceTextureEntry	A registry entry for a managed SurfaceTexture.
static interface	TextureRegistry.TextureEntry	An entry in the texture registry.

Method Summary

Modifier and Type	Method	Description
TextureRegistry.ImageTextureEntry	createImageTexture()	Creates and registers a texture managed by the Flutter engine.
default TextureRegistry.SurfaceProducer	createSurfaceProducer()	Creates and registers a TextureRegistry.SurfaceProducer, or a Flutter-managed Surface.
TextureRegistry.SurfaceProducer	createSurfaceProducer(TextureRegistry.SurfaceLifecycle lifecycle)	Creates and a TextureRegistry.SurfaceProducer, or a Flutter-managed Surface.
TextureRegistry.SurfaceTextureEntry	createSurfaceTexture()	Creates and registers a SurfaceTexture managed by the Flutter engine.
default void	onTrimMemory(int level)	Callback invoked when memory is low.
TextureRegistry.SurfaceTextureEntry	registerSurfaceTexture(SurfaceTexture surfaceTexture)	Registers a SurfaceTexture managed by the Flutter engine.

Method Details

createSurfaceProducer

@NonNull
default TextureRegistry.SurfaceProducer createSurfaceProducer()

Creates and registers a TextureRegistry.SurfaceProducer, or a Flutter-managed Surface.

Uses the TextureRegistry.SurfaceLifecycle.manual lifecycle implicitly.

Returns:

A SurfaceProducer.

createSurfaceProducer

@NonNull
TextureRegistry.SurfaceProducer createSurfaceProducer(TextureRegistry.SurfaceLifecycle lifecycle)

Creates and a TextureRegistry.SurfaceProducer, or a Flutter-managed Surface.

Parameters:

lifecycle - Whether to automatically reset the last image and release the surface.

Returns:

A SurfaceProducer.

createSurfaceTexture

@NonNull
TextureRegistry.SurfaceTextureEntry createSurfaceTexture()

Creates and registers a SurfaceTexture managed by the Flutter engine.

Returns:

A SurfaceTextureEntry.

registerSurfaceTexture

@NonNull
TextureRegistry.SurfaceTextureEntry registerSurfaceTexture(@NonNull
 SurfaceTexture surfaceTexture)

Registers a SurfaceTexture managed by the Flutter engine.

Returns:

A SurfaceTextureEntry.

createImageTexture

@NonNull
TextureRegistry.ImageTextureEntry createImageTexture()

Creates and registers a texture managed by the Flutter engine.

Returns:

a ImageTextureEntry.

onTrimMemory

default void onTrimMemory(int level)

Callback invoked when memory is low.

Invoke this from Activity.onTrimMemory(int).