Class

Touch

A Touch object represents a single user touch on the screen of the device. A touch is the presence or movement of a finger and is part of a unique multi-touch sequence. Use the changedTouches method to get all the touch objects that changed in a TouchEvent object.

Declaration

interface Touch

Overview

Starting in iOS 9, on devices that support 3D Touch, you can get the force property of the Touch class to obtain a value representing the force at which the user is pressing on the screen. For more information about 3D Touch, see Adopting 3D Touch on iPhone.

Topics

Accessing Properties

The target of this touch.

The unique identifier for this touch object.

The x-coordinate of the touch’s location relative to the window’s viewport.

The y-coordinate of the touch’s location relative to the window’s viewport.

The x-coordinate of the touch’s location in page coordinates.

The y-coordinate of the touch’s location in page coordinates.

The x-coordinate of the touch’s location in screen coordinates.

The y-coordinate of the touch’s location in screen coordinates.

The force of the touch, using a positive linear scale where a value of 0.0 indicates the absence of force.

Instance Properties

altitudeAngle

rotationAngle