Concurrent Multi-Point Contact Gesture Detection and Response

摘要

A mobile device including a touchscreen display can detect multiple points of fingertip contact being made against the touchscreen concurrently. The device can distinguish this multi-touch gesture from other gestures based on the duration, immobility, and concurrency of the contacts. In response to detecting such a multi-touch gesture, the device can send a multi-touch event to an application executing on the device. The application can respond to the multi-touch event in a variety of ways. For example, the application can determine a distance of a path in between points on a map that a user has concurrently touched with his fingertips. The application can display this distance to the user.

主权项

1. A method comprising:
detecting, by a computing device, a first point of contact being made against a touchscreen of the device concurrently with a second point of contact being made against the touchscreen; determining information pertaining to a path between displayed locations corresponding to the first and second concurrent points of contact; and presenting the information on the touchscreen.