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 1629351 Changedtouches method to get all the touch objects that changed in a Touchevent object.
Declaration
interface TouchOverview
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.