Redesign Of Android Graphics System For Embedded System

Android Operating System has good interface interaction and can develop applications quickly.But its graphics framework part uses Dalvik Virtual Machine with complex structure and occupying a large number of system resources, so it can hardly be transplanted on embedded equipment of industrial control filed with high efficiency and then we need to achieve a new graphics system, the Cnd System.The new Cnd System redesigns the process and system architecture of the original Android, based on the in-depth study of the structure and execution principle of the Android Graphics System.It uses the layered architecture implementation which includes the system platform, the system running library layer, the application framework layer and the application layer.The system platform is mainly Linux.The system running library layer includes some Linux underlying part and some excellent open source library, such as the font vector?the XML document parsing?the data compression and decompression?2D vector graphics processing, etc.The application framework layer and the application layer still uses resource analysis and interface drawing process which are basically consistent with the original Android Graphics System framework.The new Cnd System which is independent and portable makes up for the deficiencies of the Android Graphics System in industrial control filed by using the more efficient compiled C/C++ language.In addition, the system will try to reduce the number of the system code, improve the system efficiency, and be transplanted on the ARM and MIPS hardware architecture.Finally, strict functional and performance testing on the Cnd System shows that it occupies less system resource, interacts better, operates efficiently and stably and can meet the needs of the industrial control filed well.