android apk 签名

编译framework出现错误提示要 make update-api

这是因为修改framework， 定义了新的 公有变量、常量、方法名称要提交 frameworks/base/api/ current.txt 这个文件。

java -jar ./out/host/linux-x86/framework/signapk.jar  ./build/target/product/security/platform.x509.pem ./build/target/product/security/platform.pk8 /tmp/Lesson37_HelloSensor_sensor.apk /tmp/Lesson37_HelloSensor_sensor_signed.apk

aapt dump permissions /tmp/Lesson37_HelloSensor_sensor_signed.apk

添加新的sensor 权限：

frameworks/base/core/java/android/app/ContextImpl.java

390                     return new SensorManager(ctx,ctx.mMainThread.getHandler().getLooper());//xiayu fix

frameworks/base/core/java/android/hardware/SensorManager.java

添加public SensorManager(Context context,Looper mainLooper)函数。大部分是复制public SensorManager(Looper mainLooper)

  if (     (context.checkCallingOrSelfPermission("android.permission.XIAYU")==PackageManager.PERMISSION_GRANTED) &&
                (context.checkCallingOrSelfPermission("android.permission.SENSOR")
                    != PackageManager.PERMISSION_GRANTED)) {
                Log.e(TAG,"xiayu  no android.permission.SENSOR");
                throw new SecurityException(" requires SENSOR  permission");
            }