Companion

Companion object containing the constants and methods for identifying the direction of a fling gesture.

Properties

BOUNDARY_ANGLES

Boundary angles (in radians) for distinguishing the direction of a fling gesture.

getAngle

private fun getAngle(x1: Float, y1: Float, x2: Float, y2: Float): Double

Computes the angle (in radians) between the points defined by the given coordinates.

getDirection

Returns the direction of the fling gesture based on the angle formed between the points defined by the coordinates of the given MotionEvents.

isDown

private fun isDown(angle: Double): Boolean

Checks if the angle formed between the points defined by the coordinates of the pertinent MotionEvents is indicative of a downward gesture.

isLeft

private fun isLeft(angle: Double): Boolean

Checks if the angle formed between the points defined by the coordinates of the pertinent MotionEvents is indicative of a left gesture.

isRight

private fun isRight(angle: Double): Boolean

Checks if the angle formed between the points defined by the coordinates of the pertinent MotionEvents is indicative of a right gesture.

isUp

private fun isUp(angle: Double): Boolean

Checks if the angle formed between the points defined by the coordinates of the pertinent MotionEvents is indicative of an upward gesture.