android 手机截屏源码，使用ndk读取fb0,截取屏幕图片，4.0以下及4.2.2测试通过，需先有root权限-android sceenshot,using ndk read /dev/graphics/fb0,required root power-android phone screen capture source, the use ndk read fb0, interception of the screen image below 4.0 and 4.2.2 test, you must first have root privileges-android sceenshot, using ndk read/dev/graphics/fb0, required root power