Added in API level 24

GestureDescription


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 for a GestureDescription

Immutable description of stroke that can be part of a gesture.

Public methods
Int

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

static Long

Get the upper limit on a gesture's duration.

static Int

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

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