###杀进程前操作

// Schedule an alarm before we kill ourself.
            Intent homeIntent = new Intent(Intent.ACTION_MAIN)
                    .addCategory(Intent.CATEGORY_HOME)
                    .setPackage(mContext.getPackageName())
                    .addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
            PendingIntent pi = PendingIntent.getActivity(mContext, RESTART_REQUEST_CODE,
                    homeIntent, PendingIntent.FLAG_CANCEL_CURRENT | PendingIntent.FLAG_ONE_SHOT);
            mContext.getSystemService(AlarmManager.class).setExact(
                    AlarmManager.ELAPSED_REALTIME, SystemClock.elapsedRealtime() + 50, pi);

            // Kill process
            android.os.Process.killProcess(android.os.Process.myPid());