io.flutter.embedding.engine.systemchannels.PlatformViewsChannel.PlatformViewsHandler Interface Reference

Public Member Functions
void	createForPlatformViewLayer (@NonNull PlatformViewCreationRequest request)
long	createForTextureLayer (@NonNull PlatformViewCreationRequest request)
void	dispose (int viewId)
void	resize ( @NonNull PlatformViewResizeRequest request, @NonNull PlatformViewBufferResized onComplete)
void	offset (int viewId, double top, double left)
void	onTouch (@NonNull PlatformViewTouch touch)
void	setDirection (int viewId, int direction)
void	clearFocus (int viewId)
void	synchronizeToNativeViewHierarchy (boolean yes)

Static Public Attributes
static final long	NON_TEXTURE_FALLBACK = -2

Detailed Description

Handler that receives platform view messages sent from Flutter to Android through a given PlatformViewsChannel.

To register a PlatformViewsHandler with a PlatformViewsChannel, see PlatformViewsChannel#setPlatformViewsHandler(PlatformViewsHandler).

Definition at line 288 of file PlatformViewsChannel.java.

Member Function Documentation

clearFocus()

void io.flutter.embedding.engine.systemchannels.PlatformViewsChannel.PlatformViewsHandler.clearFocus

(

int

viewId

)

Clears the focus from the platform view with a give id if it is currently focused.

createForPlatformViewLayer()

void io.flutter.embedding.engine.systemchannels.PlatformViewsChannel.PlatformViewsHandler.createForPlatformViewLayer

(

@NonNull PlatformViewCreationRequest

request

)

The Flutter application would like to display a new Android View, i.e., platform view.

The Android View is added to the view hierarchy. This view is rendered in the Flutter framework by a PlatformViewLayer.

Parameters

request

The metadata sent from the framework.

createForTextureLayer()

long io.flutter.embedding.engine.systemchannels.PlatformViewsChannel.PlatformViewsHandler.createForTextureLayer

(

@NonNull PlatformViewCreationRequest

request

)

The Flutter application would like to display a new Android View, i.e., platform view.

The Android View is added to the view hierarchy. This view is rendered in the Flutter framework by a TextureLayer.

Parameters

request

The metadata sent from the framework.

Returns

The texture ID.

dispose()

void io.flutter.embedding.engine.systemchannels.PlatformViewsChannel.PlatformViewsHandler.dispose

(

int

viewId

)

The Flutter application would like to dispose of an existing Android View.

offset()

void io.flutter.embedding.engine.systemchannels.PlatformViewsChannel.PlatformViewsHandler.offset	(	int	viewId,
		double	top,
		double	left
	)

The Flutter application would like to change the offset of an existing Android View.

onTouch()

void io.flutter.embedding.engine.systemchannels.PlatformViewsChannel.PlatformViewsHandler.onTouch

(

@NonNull PlatformViewTouch

touch

)

The user touched a platform view within Flutter.

Touch data is reported in touch.

resize()

void io.flutter.embedding.engine.systemchannels.PlatformViewsChannel.PlatformViewsHandler.resize	(	@NonNull PlatformViewResizeRequest	request,
		@NonNull PlatformViewBufferResized	onComplete
	)

The Flutter application would like to resize an existing Android View.

Parameters

request	The request to resize the platform view.
onComplete	Once the resize is completed, this is the handler to notify the size of the platform view buffer.

setDirection()

void io.flutter.embedding.engine.systemchannels.PlatformViewsChannel.PlatformViewsHandler.setDirection	(	int	viewId,
		int	direction
	)

The Flutter application would like to change the layout direction of an existing Android View, i.e., platform view.

synchronizeToNativeViewHierarchy()

void io.flutter.embedding.engine.systemchannels.PlatformViewsChannel.PlatformViewsHandler.synchronizeToNativeViewHierarchy

(

boolean

yes

)

Whether the render surface of FlutterView should be converted to a
FlutterImageView when a PlatformView is added.

This is done to syncronize the rendering of the PlatformView and the FlutterView. Defaults to true.

Member Data Documentation

NON_TEXTURE_FALLBACK

final long io.flutter.embedding.engine.systemchannels.PlatformViewsChannel.PlatformViewsHandler.NON_TEXTURE_FALLBACK = -2

static

Definition at line 296 of file PlatformViewsChannel.java.

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The documentation for this interface was generated from the following file:

• shell/platform/android/io/flutter/embedding/engine/systemchannels/PlatformViewsChannel.java