A study and implementation of VGA multi-resolution on Android platform

At present, Android system can only support fixed resolution. This paper discusses a universal and concise solution to solve this problem, and the realization of Android VGA multi-resolution is described in detail. In order to solve the problem efficiently, we present a method with presetting resolution and reboot-confirmation strategy. This method involves multiple layers of the Android system architecture. We conducted a study on the Android system framework and graphics system architecture. Combined with Framebuffer driver technology of the Linux Kernel, the study applies the presetting resolution and reboot-confirmation method by using the existed framework. According to experiment result, the design achieved the expected goal, and it ensured the stable operation of the system. This solution is universal for all Android systems. In a way, it has reference value and practical value for making Android system support multi-resolution.