Based On The Multi-touch Of The Android Platform

With the rapid development of mobile platform technology and the continuous extension of touch screen applications, the multi-touch technology has become a hot topic of the mobile application. As a new smart phone operating system, Android possess these features:open the extension of the hardware and software are high, of which the development are based on the multi-touch of the android platform.in the infrared, big touch screen it has great application potential.This article discusses the technology and application of touch and its trends, but also introduces several touch-screen currently used; then compare a variety of operating systems demonstration, and analyzed its special architecture, the introduction of Android platform as the operating system of the subject.According subjects design requirements, design the overall design of the touch screen controller, and hardware architecture of the controller. Then introduces the Linux driver development touchscreen technology needed to use; Finally, related technologies and algorithms and android framework layer functions handling mechanism Linux kernel development, design and implementation of large-infrared type CVT-based multi-touch touch screen android platform. Then according to the ARM development process, the development of large-scale digital signage touch screen system based on Android platformThe system, adopting Linux Input subsystem and Linux USB system, reported absolute touch coordinate positioning and decoding of the data. Combining the multi-touch with USB technology, it achieves the extension of the function of multi-touch technology based on the android platform through the redact of the driver program.