[Monitor Service status regularly, restart the service if it's died] #tags: android-service

MonitorService.java

/**
 * Created by weiyi on 4/18/16.
 */
public class MonitorService extends IntentService {
    private static final String TAG = makeLogTag(MonitorService.class);
    private static final int MONITOR_INTERVAL = 5 * 1000;

    private Context mAppContext;
    private Handler mHandler;

    public MonitorService() {
        super(TAG);
    }

    @Override
    public void onCreate() {
        super.onCreate();

        mAppContext = getApplicationContext();
        mHandler = new Handler(mAppContext.getMainLooper());
        mHandler.postDelayed(mMonitorRunnable, MONITOR_INTERVAL);
    }

    @Override
    protected void onHandleIntent(Intent intent) {

    }

    private Runnable mMonitorRunnable = new Runnable() {
        @Override
        public void run() {
            if (isDvrServiceDied()) {
                startDvrService();
                LOGW(TAG, "DvrService is died, restart");
            } else {
                LOGD(TAG, "DvrService is living");
            }
            mHandler.postDelayed(mMonitorRunnable, MONITOR_INTERVAL);
        }
    };

    private boolean isDvrServiceDied() {
        //return !DvrService.sIsLiving;
        return false;
    }

    private void startDvrService() {
        mAppContext.startService(new Intent(mAppContext, DvrService.class));
    }
}