根据此处的Google Geofence API示例
您可以在添加地理栅栏对象时设置expirationDurationTime.
如何在Android中设置启动Geofence Monitoring的时间?
例:
我希望明天14:30到15:30在“abc”位置进行地理围栏监测,并进行“xyz”地理围栏循环
我没有找到谷歌地理围栏api提供的任何功能,我可以设置开始监控地理围栏对象的时间.
请帮我.我现在非常绝望:(
更新
从@Pavneet_Singh的帖子中读到WorkManager之后
我仍然混淆如何在这里组合WorkManager,因为我已经使用IntentService扩展了我的类,以便从Location.Service获得意图.
公共类GeofenceTransitionsIntentService扩展IntentService {
private final String TAG = "GeofenceTransIntServ";
/**
* Creates an IntentService. Invoked by your subclass's constructor.
*
* @param name Used to name the worker thread, important only for debugging.
*/
public GeofenceTransitionsIntentService(String name) {
super(name);
}
/**
* This method is invoked on the worker thread with a request to process.
* Only one Intent is processed at a time, but the processing happens on a
* worker thread that runs independently from other application logic.
* So, if this code takes a long time, it will hold up other requests to
* the same IntentService, but it will not hold up anything else.
* When all requests have been handled, the IntentService stops itself,
* so you should not call {@link #stopSelf}.
*
* @param intent The value passed to {@link
* Context#startService(Intent)}.
* This may be null if the service is being restarted after
* its process has gone away; see
* {@link Service#onStartCommand}
* for details.
*/
@Override
protected void onHandleIntent(@Nullable Intent intent) {
GeofencingEvent geofencingEvent = GeofencingEvent.fromIntent(intent);
if (geofencingEvent.hasError()) {
String errorMessage = GeofenceErrorMessages.getErrorString(this,
geofencingEvent.getErrorCode());
Log.e(TAG, errorMessage);
return;
}
// Get the transition type.
int geofenceTransition = geofencingEvent.getGeofenceTransition();
// Test that the reported transition was of interest.
if (geofenceTransition == Geofence.GEOFENCE_TRANSITION_ENTER ||
geofenceTransition == Geofence.GEOFENCE_TRANSITION_EXIT) {
// Get the geofences that were triggered. A single event can trigger
// multiple geofences.
List<Geofence> triggeringGeofences = geofencingEvent.getTriggeringGeofences();
// Get the transition details as a String.
String geofenceTransitionDetails = getGeofenceTransitionDetails(
geofenceTransition,
triggeringGeofences
);
// Send notification and log the transition details.
sendNotification(geofenceTransitionDetails);
Log.i(TAG, geofenceTransitionDetails);
} else {
// Error
}
}
private void sendNotification(String geofenceTransitionDetails) {
// send notification
}
/**
* Gets transition details and returns them as a formatted string.
*
* @param geofenceTransition The ID of the geofence transition.
* @param triggeringGeofences The geofence(s) triggered.
* @return The transition details formatted as String.
*/
private String getGeofenceTransitionDetails(
int geofenceTransition,
List<Geofence> triggeringGeofences) {
String geofenceTransitionString = getTransitionString(geofenceTransition);
// Get the Ids of each geofence that was triggered.
ArrayList<String> triggeringGeofencesIdsList = new ArrayList<>();
for (Geofence geofence : triggeringGeofences) {
triggeringGeofencesIdsList.add(geofence.getRequestId());
}
String triggeringGeofencesIdsString = TextUtils.join(", ", triggeringGeofencesIdsList);
return geofenceTransitionString + ": " + triggeringGeofencesIdsString;
}
private String getTransitionString(int geofenceTransition) {
// get the transitionType as String
return null;
}
}
我的想法 :
将GeofenceTransitionsIntentService中的notificationMessage传递给另一个从Worker扩展的类,并使用setInitialdelay方法推迟通知?
我发现有人用JobIntentService扩展了GeofenceTransitionsIntentService类,但我认为我不能用JobIntentService扩展我的类,因为JobIntentService不提供延迟功能.
我怎么能让它现在起作用,我是否正确思考?
谢谢
最佳答案 您实际上是在询问在某个特定时间触发的警报机制.
有很多选项可以做到这一点
最优方案:
> WorkManager
> JobScheduler
其他(由于Naught,Oreo的背景限制)
>报警
有了上述功能,您可以在特定时间开始执行任务
参考文献:
Schedule a work on a specific time with WorkManager
how to do something at specific time for everyday in android