Added in API level 24

Summary: Nested Classes | Methods | Inherited Methods

GestureDescription

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Kotlin |Java

public final class GestureDescription
extends Object

java.lang.Object
↳	android.accessibilityservice.GestureDescription

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Accessibility services with the R.styleable.AccessibilityService_canPerformGestures property can dispatch gestures. This class describes those gestures. Gestures are made up of one or more strokes. Gestures are immutable once built and will be dispatched to the specified display.

Spatial dimensions throughout are in screen pixels. Time is measured in milliseconds.

Summary

Nested classes
class	GestureDescription.Builder Builder for a GestureDescription
class	GestureDescription.StrokeDescription Immutable description of stroke that can be part of a gesture.

Public methods
int	getDisplayId() Returns the ID of the display this gesture is sent on, for use with DisplayManager.getDisplay(int).
static long	getMaxGestureDuration() Get the upper limit on a gesture's duration.
static int	getMaxStrokeCount() Get the upper limit for the number of strokes a gesture may contain.
GestureDescription.StrokeDescription	getStroke(int index) Read a stroke from the gesture
int	getStrokeCount() Get the number of stroke in the gesture.

Inherited methods

From class java.lang.Object Object clone() Creates and returns a copy of this object. boolean equals(Object obj) Indicates whether some other object is "equal to" this one. void finalize() Called by the garbage collector on an object when garbage collection determines that there are no more references to the object. final Class<?> getClass() Returns the runtime class of this Object. int hashCode() Returns a hash code value for the object. final void notify() Wakes up a single thread that is waiting on this object's monitor. final void notifyAll() Wakes up all threads that are waiting on this object's monitor. String toString() Returns a string representation of the object. final void wait(long timeoutMillis, int nanos) Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed. final void wait(long timeoutMillis) Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed. final void wait() Causes the current thread to wait until it is awakened, typically by being notified or interrupted.

Public methods

getDisplayId

Added in API level 30

public int getDisplayId ()

Returns the ID of the display this gesture is sent on, for use with DisplayManager.getDisplay(int).

Returns
int	The logical display id.

getMaxGestureDuration

Added in API level 24

public static long getMaxGestureDuration ()

Get the upper limit on a gesture's duration.

Returns
long	The maximum duration in milliseconds.

getMaxStrokeCount

Added in API level 24

public static int getMaxStrokeCount ()

Get the upper limit for the number of strokes a gesture may contain.

Returns
int	The maximum number of strokes.

getStroke

Added in API level 24

public GestureDescription.StrokeDescription getStroke (int index)

Read a stroke from the gesture

Parameters
index	int: the index of the stroke Value is 0 or greater

Returns
GestureDescription.StrokeDescription	A description of the stroke.

getStrokeCount

Added in API level 24

public int getStrokeCount ()

Get the number of stroke in the gesture.

Returns
int	the number of strokes in this gesture