GestureDescription

Kotlin |Java

class GestureDescription

kotlin.Any
↳	android.accessibilityservice.GestureDescription

Accessibility services with the android.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
	`Builder` Builder for a `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 `android.hardware.display.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(index: Int)` Read a stroke from the gesture
Int	`getStrokeCount()` Get the number of stroke in the gesture.

Public methods

getDisplayId

Added in API level 30

fun getDisplayId(): Int

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

Return
`Int`	The logical display id.

getMaxGestureDuration

Added in API level 24

static fun getMaxGestureDuration(): Long

Get the upper limit on a gesture's duration.

Return
`Long`	The maximum duration in milliseconds.

getMaxStrokeCount

Added in API level 24

static fun getMaxStrokeCount(): Int

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

Return
`Int`	The maximum number of strokes.

getStroke

Added in API level 24

fun getStroke(index: Int): GestureDescription.StrokeDescription!

Read a stroke from the gesture

Parameters
`index`	Int: the index of the stroke Value is 0 or greater

Return
`GestureDescription.StrokeDescription!`	A description of the stroke.

getStrokeCount

Added in API level 24

fun getStrokeCount(): Int

Get the number of stroke in the gesture.

Return
`Int`	the number of strokes in this gesture