Summary: Ctors | Methods | Inherited Methods | [Expand All]

Gles2WatchFaceService.Engine

public class Gles2WatchFaceService.Engine
extends WatchFaceService.Engine

java.lang.Object
↳	android.service.wallpaper.WallpaperService.Engine
	↳	android.support.wearable.watchface.WatchFaceService.Engine
		↳	android.support.wearable.watchface.Gles2WatchFaceService.Engine

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The actual implementation of a watch face that draws using OpenGL ES 2.0. You must implement onCreateEngine() to return your concrete Engine implementation.

Summary

Public constructors
Gles2WatchFaceService.Engine()

Public methods
EGLConfig	chooseEglConfig(EGLDisplay eglDisplay) Returns the desired EGL config to use.
EGLContext	createEglContext(EGLDisplay eglDisplay, EGLConfig eglConfig) Creates the EGL context and returns it.
EGLSurface	createWindowSurface(EGLDisplay eglDisplay, EGLConfig eglConfig, SurfaceHolder surfaceHolder) Creates and returns a new EGL window surface for surfaceHolder.
EGLDisplay	initializeEglDisplay() Initializes the display.
final void	invalidate() Schedules a call to onDraw() to draw the next frame.
void	onApplyWindowInsets(WindowInsets insets)
void	onCreate(SurfaceHolder surfaceHolder)
void	onDestroy()
void	onDraw() Draws the watch face.
void	onGlContextCreated() Called when a new GL context is created.
void	onGlSurfaceCreated(int width, int height) Called when a new GL surface is created.
final void	onSurfaceChanged(SurfaceHolder holder, int format, int width, int height)
final void	onSurfaceDestroyed(SurfaceHolder holder)
final void	onSurfaceRedrawNeeded(SurfaceHolder holder)
final void	postInvalidate() Posts a message to schedule a call to onDraw() to draw the next frame.

Inherited methods
From class android.support.wearable.watchface.WatchFaceService.Engine final int getInterruptionFilter() Returns interruption filter selected by the user. final int getNotificationCount() Returns the total number of notification cards in the stream. final Rect getPeekCardPosition() This method is deprecated. Wear 2.0 doesn't have peeking cards final int getUnreadCount() Returns the number of unread notification cards in the stream. final boolean isInAmbientMode() Returns whether the watch face is in ambient mode. void onAmbientModeChanged(boolean inAmbientMode) Called when the device enters or exits ambient mode. Bundle onCommand(String action, int x, int y, int z, Bundle extras, boolean resultRequested) void onComplicationDataUpdate(int watchFaceComplicationId, ComplicationData data) Called when new complication data is received. void onCreate(SurfaceHolder holder) void onDestroy() void onInterruptionFilterChanged(int interruptionFilter) Called when the user changes interruption filter. void onNotificationCountChanged(int count) Called when the total number of notification cards in the stream has changed. void onPeekCardPositionUpdate(Rect rect) This method is deprecated. Wear 2.0 doesn't have peeking cards void onPropertiesChanged(Bundle properties) Called when the properties of the device are determined. void onTapCommand(int tapType, int x, int y, long eventTime) Called when a tap or touch related event occurs. void onTimeTick() Called periodically to update the time shown by the watch face. void onTouchEvent(MotionEvent event) This method is deprecated. Do not use this to receive touch events on a watch face. Instead, use setAcceptsTapEvents(boolean) and then override onTapCommand(int, int, int, long). This method will cease to function in a future release. void onUnreadCountChanged(int count) Called when the number of unread notification cards in the stream has changed. void onVisibilityChanged(boolean visible) Called to inform you of the watch face becoming visible or hidden. void setActiveComplications(int... watchFaceComplicationIds) Sets the complications which are active in the watchface. void setDefaultComplicationProvider(int watchFaceComplicationId, ComponentName provider, int type) Sets a custom provider as the default provider for the specified watch face complication id. void setDefaultSystemComplicationProvider(int watchFaceComplicationId, int systemProvider, int type) Sets a system provider as the default provider for the specified watch face complication id. void setTouchEventsEnabled(boolean enabled) This method is deprecated. Do not use this to receive touch events on a watch face. Instead, use setAcceptsTapEvents(boolean) and then override onTapCommand(int, int, int, long). This method will cease to function in a future release. void setWatchFaceStyle(WatchFaceStyle watchFaceStyle) Sets the watch face style.
From class android.service.wallpaper.WallpaperService.Engine void dump(String arg0, FileDescriptor arg1, PrintWriter arg2, String[] arg3) int getDesiredMinimumHeight() int getDesiredMinimumWidth() Context getDisplayContext() SurfaceHolder getSurfaceHolder() boolean isPreview() boolean isVisible() void notifyColorsChanged() void onApplyWindowInsets(WindowInsets arg0) Bundle onCommand(String arg0, int arg1, int arg2, int arg3, Bundle arg4, boolean arg5) WallpaperColors onComputeColors() void onCreate(SurfaceHolder arg0) void onDesiredSizeChanged(int arg0, int arg1) void onDestroy() void onOffsetsChanged(float arg0, float arg1, float arg2, float arg3, int arg4, int arg5) void onSurfaceChanged(SurfaceHolder arg0, int arg1, int arg2, int arg3) void onSurfaceCreated(SurfaceHolder arg0) void onSurfaceDestroyed(SurfaceHolder arg0) void onSurfaceRedrawNeeded(SurfaceHolder arg0) void onTouchEvent(MotionEvent arg0) void onVisibilityChanged(boolean arg0) void onZoomChanged(float arg0) void setOffsetNotificationsEnabled(boolean arg0) void setTouchEventsEnabled(boolean arg0)
From class java.lang.Object Object clone() boolean equals(Object arg0) void finalize() final Class<?> getClass() int hashCode() final void notify() final void notifyAll() String toString() final void wait(long arg0, int arg1) final void wait(long arg0) final void wait()

Public constructors

Gles2WatchFaceService.Engine

Gles2WatchFaceService.Engine ()

Public methods

chooseEglConfig

EGLConfig chooseEglConfig (EGLDisplay eglDisplay)

Returns the desired EGL config to use. By default, uses a config that:

• supports OpenGL ES 2.0 contexts
• has at least 8 bits for each of red, green, blue, and alpha

If there are multiple matches, the one with the most bits for red, green, blue, and alpha is chosen.

Watch faces can override this method to call eglChooseConfig(EGLDisplay, int[], int, EGLConfig[], int, int, int[], int) with different attributes. By passing in a large array, eglChooseConfig can return multiple matching configs and the watch face can choose among them by using eglGetConfigAttrib(EGLDisplay, EGLConfig, int, int[], int) to fetch their attributes.

Parameters
eglDisplay	EGLDisplay: the EGL display to use

Returns
EGLConfig	the EGL config to use

createEglContext

EGLContext createEglContext (EGLDisplay eglDisplay, 
                EGLConfig eglConfig)

Creates the EGL context and returns it. By default, creates an EGL 2.0 context using eglCreateContext(EGLDisplay, EGLConfig, EGLContext, int[], int).

Watch faces can override this method to call eglCreateContext(EGLDisplay, EGLConfig, EGLContext, int[], int) with different attributes.

Parameters
eglDisplay	EGLDisplay
eglConfig	EGLConfig

Returns
EGLContext

createWindowSurface

EGLSurface createWindowSurface (EGLDisplay eglDisplay, 
                EGLConfig eglConfig, 
                SurfaceHolder surfaceHolder)

Creates and returns a new EGL window surface for surfaceHolder. By default, this surface has no attributes.

Watch faces can override this method to call eglCreateWindowSurface(EGLDisplay, EGLConfig, Object, int[], int) with different attributes.

Parameters
eglDisplay	EGLDisplay
eglConfig	EGLConfig
surfaceHolder	SurfaceHolder

Returns
EGLSurface

initializeEglDisplay

EGLDisplay initializeEglDisplay ()

Initializes the display. Calls eglGetDisplay(int) and eglInitialize(EGLDisplay, int[], int, int[], int).

Returns
EGLDisplay	the initialized EGLDisplay to use

invalidate

void invalidate ()

Schedules a call to onDraw() to draw the next frame. Must be called on the main thread.

onApplyWindowInsets

void onApplyWindowInsets (WindowInsets insets)

Parameters
insets	WindowInsets

onCreate

void onCreate (SurfaceHolder surfaceHolder)

Parameters
surfaceHolder	SurfaceHolder

onDestroy

void onDestroy ()

onDraw

void onDraw ()

Draws the watch face. It's safe to use GL APIs in this method.

onGlContextCreated

void onGlContextCreated ()

Called when a new GL context is created. It's safe to use GL APIs in this method.

onGlSurfaceCreated

void onGlSurfaceCreated (int width, 
                int height)

Called when a new GL surface is created. It's safe to use GL APIs in this method.

Parameters
width	int: width of surface in pixels
height	int: height of surface in pixels

onSurfaceChanged

void onSurfaceChanged (SurfaceHolder holder, 
                int format, 
                int width, 
                int height)

Parameters
holder	SurfaceHolder
format	int
width	int
height	int

onSurfaceDestroyed

void onSurfaceDestroyed (SurfaceHolder holder)

Parameters
holder	SurfaceHolder

onSurfaceRedrawNeeded

void onSurfaceRedrawNeeded (SurfaceHolder holder)

Parameters
holder	SurfaceHolder

postInvalidate

void postInvalidate ()

Posts a message to schedule a call to onDraw() to draw the next frame. Unlike invalidate(), this method is thread-safe and may be called on any thread.

• Annotations

  • WatchFaceService.TapType

• Classes

  • CanvasWatchFaceService
  • CanvasWatchFaceService.Engine
  • Gles2WatchFaceService
  • Gles2WatchFaceService.Engine
  • WatchFaceService
  • WatchFaceService.Engine
  • WatchFaceStyle
  • WatchFaceStyle.Builder