设是ROOT过的或者设备商提供重启的API

public class DeviceAutoRebootService extends Service {

    private ScheduledExecutorService threadPool = null;
    private int betweenTime = 59;//间隔59秒执行一次
    private int delayTime = 2;//线程池开启5庙后执行
    private String time = "14:50";//重启时间一
    SimpleDateFormat sdf = new SimpleDateFormat("HH:mm", Locale.CHINA);
    String[] rebootArray = {"su", "-c", "reboot"};//执行重启的命令
    String dateStr = "";//获取的时间

    @Nullable
    @Override
    public IBinder onBind(Intent intent) {
        return null;
    }

    @Override
    public void onCreate() {
        super.onCreate();
        threadPool = Executors.newScheduledThreadPool(3);
        executeShutDown();

    }

    public void executeShutDown() {
        threadPool.scheduleAtFixedRate(new Runnable() {
            @Override
            public void run() {
                dateStr = sdf.format(new Date());
                // root机子
//                if (dateStr.equals(time) ) {
//                    try {
//                        Runtime.getRuntime().exec(rebootArray);
//                    } catch (IOException io) {
//
//                    }
//                }
                if (dateStr.equals(time)) {
                    App.getInstance().setHwitRebootSystem();
                }
            }
        }, delayTime, betweenTime, TimeUnit.SECONDS);
    }

    @Override
    public void onDestroy() {
        threadPool.shutdown();
        threadPool = null ;
        dateStr = null ;
        super.onDestroy();
    }
}