基于高通平台的触摸屏和虚拟按键设计与实现

摘要

The requirements of the market for mobile devices are fast, easy, good experience and good quality. It presented an implementation method of the input subsystem based on Android and Quaicomm MSM8X55 platform,discussed the calibration principle of the "7point method" of touch screen through the capture data and analyzed the accuracy of calibration. It proposed a new non-real key implementation approach of virtual keys. It brought convenience to user after promoted to the market. Tests show that it reduces the equipment size and is easy to operate. Using virtual keys is cost less than the real key and extends the equipment life. Touch screen can predict the use of end products in the future.%针对目前市场上对移动终端设备要求操作快捷、方便、体验性好、质量好等特点,文中介绍了一种基于Android系统和Qualcomm的MSM8X55平台上的输入子系统实现方法.讨论了触摸屏的“7点法”的校准原理,通过抓取数据,分析校准后的准确度.并提出一种新的无实键的虚拟按键设计方法及其实现方式.该产品在成功推广到市场后,给用户带来了极大的方便.结果表明,触摸屏缩小设备体积,操作方便,采用虚拟按键比实键节省了成本,设备使用寿命延长.可以预测触摸屏在未来终端产品中的利用具有巨大的前景.