CopyAppToSystem

    private void RunAsRooter()
    {
        try {
              Process process = Runtime.getRuntime().exec("su");
              process.waitFor();
            } catch (IOException e) {
              e.printStackTrace();
            } catch (InterruptedException e) {
              e.printStackTrace();
            }
    }
    
    private void CopyAppToSystem() throws IOException
    {
        Process process = Runtime.getRuntime().exec("su");
        DataOutputStream out = new DataOutputStream(process.getOutputStream());
        out.writeBytes("mount -o remount,rw -t yaffs2 /dev/block/mtdblock3 /system\n");
        out.writeBytes("cat /sdcard/myApp.adk > /system/app/myApp.adk\n");
        out.writeBytes("mount -o remount,ro -t yaffs2 /dev/block/mtdblock3 /system\n");
        out.writeBytes("exit\n");  
        out.flush();
        try {
            process.waitFor();
        } catch (InterruptedException e) {
            e.printStackTrace();
    }
]

//关机方法
 private void shutDown(){
        Intent intent = new Intent("android.intent.action.ACTION_REQUEST_SHUTDOWN");
        intent.putExtra("android.intent.extra.KEY_CONFIRM", false);
        intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        startActivity(intent);
 }