Question

因此，我正在构建一个应用程序，当收到Firebase的消息时，需要异步添加Geofences。该消息是在FirebaseMessagingService（扩展为EnhancedIntentService）上接收的。从那时起，我按照this指南中所述创建地理围栏。但是，即使我确定已正确添加地理围栏，也无法在IntentService上重新获得任何意图。我觉得原因是我的PendingIntent中的FirebaseMessagingService由于无法在适当的上下文中通过而无法正常工作，但是我不确定解决方案是什么。我尝试使用BroadcastReceiver来代替，因为可以通过一个动作来触发它，但是也不会产生任何结果。

我创建地理围栏的FirebaseMessagingService：

class EventStatusMessagingService : FirebaseMessagingService() {
    private lateinit var geoFencingClient: GeofencingClient

    override fun onMessageReceived(remoteMessage: RemoteMessage?) {
        remoteMessage?.data?.isNotEmpty()?.let {
            val data = remoteMessage.data
            // Create GeoFence w/ data
            geoFencingClient = LocationServices.getGeofencingClient(this)
            val geoFence = createGeofence(data, remoteMessage.from!!.replace("/topic",""))
            val geoFenceRequest = getGeoFencingRequest(geoFence)
            if(ContextCompat.checkSelfPermission(this, android.Manifest.permission.ACCESS_FINE_LOCATION)
                == PackageManager.PERMISSION_GRANTED) {
                geoFencingClient.addGeofences(geoFenceRequest, geoFencingPendingIntent)?.run {
                    addOnSuccessListener {
                        Log.i("test", "Successfully added GeoFences")
                    }
                    addOnFailureListener {
                        Log.w("test", "Could not add GeoFences")
                    }
                }
            }
        }
    }

    private fun createGeofence(data: Map<String, String>, key: String): Geofence {
        return Geofence.Builder().apply {
            setRequestId(key)
            setCircularRegion(
                data.getValue("latitude").toDouble(),
                data.getValue("longitude").toDouble(),
                data.getValue("radius").toFloat()
            )
            setExpirationDuration(data.getValue("duration").toLong() * 3600000) // to Milliseconds
            setTransitionTypes(Geofence.GEOFENCE_TRANSITION_ENTER or Geofence.GEOFENCE_TRANSITION_EXIT
                    or Geofence.GEOFENCE_TRANSITION_DWELL)
            setLoiteringDelay(120000)
        }.build()
    }

    private fun getGeoFencingRequest(geoFence: Geofence) : GeofencingRequest {
        return GeofencingRequest.Builder().apply {
            setInitialTrigger(GeofencingRequest.INITIAL_TRIGGER_ENTER)
            addGeofence(geoFence)
        }.build()
    }

    private val geoFencingPendingIntent: PendingIntent by lazy {
        val intent = Intent(applicationContext, GeoFenceIntentService::class.java)
        PendingIntent.getService(applicationContext, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT)
    }
}

我的准系统IntentService仅用于测试

class GeoFenceIntentService : IntentService("GeoFenceService") {
    override fun onHandleIntent(intent: Intent?) {
        Log.d("test", "got geofence callback")
        val geoFencingEvent = GeofencingEvent.fromIntent(intent)

        when(geoFencingEvent.geofenceTransition) {
            Geofence.GEOFENCE_TRANSITION_ENTER -> {
            }
            Geofence.GEOFENCE_TRANSITION_EXIT -> {
            }
            Geofence.GEOFENCE_TRANSITION_DWELL -> {
            }
        }
    }
}

是的，我已将服务添加到AndroidManifest.xml

        <service
                android:name=".gps.services.GeoFenceIntentService"/>
        <service
                android:name=".events.services.EventStatusMessagingService"
                android:exported="false">
            <intent-filter>
                <action android:name="com.google.firebase.MESSAGING_EVENT"/>
            </intent-filter>
        </service>

我来自Messaging服务的Log.i消息确实出现在控制台中，但是无论我如何测试它，都没有出现来自IntentService的日志消息。

从我收集到的信息来看，问题在于尝试从另一个Service启动IntentService，但是我不确定应该如何解决。我还尝试了从applicationContext到baseContext到this的切换，都无济于事。

真的不可能吗？如果是这样，如果我要像这样初始化Geofences，应该采取什么策略？

没有通过其他服务的PendingIntent在Geofence IntentService上收到意图

0 个答案: