AndroidService自启动注意事项分析

@Override
public void onStart(Intent intent, int startId) {
    super.onStart(intent, startId);
    if(intent == null)
      return;
}
@Override
public void onDestroy() {
    super.onDestroy();
    Intent intent = new Intent(SensorService.this, SensorService.class);
    startService(intent);
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
//    flags = Service.START_STICKY;
    flags = Service.START_REDELIVER_INTENT;
    return super.onStartCommand(intent, flags, startId);
}