android– 如何监控Oreo背景中的地理围栏？

概述我按照本教程：https://developer.android.comraining/location/geofencing并在Android<上工作正常8,但在奥利奥,由于新的 *** 作系统背景限制,我遇到了问题.当应用程序处于后台时,如何获得地理围栏转换触发器？我也尝试使用BroadcastReceiver而不是IntentService,但结果是一样的.

我按照本教程：https://developer.android.com/training/location/geofencing并在AndroID<上工作正常8,但在奥利奥,由于新的 *** 作系统背景限制,我遇到了问题.当应用程序处于后台时,如何获得地理围栏转换触发器？我也尝试使用broadcastReceiver而不是IntentService,但结果是一样的.待定意图：

private val geofencePendingIntent: PendingIntent by lazy {    val intent = Intent(context, GeofencebroadcastReceiver::class.java)    intent.action = "com.example.GEOFENCE_Transition"    PendingIntent.getbroadcast(context, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT)}

注册地理围栏：

geofencingClIEnt.addGeofences(request, geofencePendingIntent).run {    addOnSuccessListener {        Log.d(TAG, "Geofence added")    }    addOnFailureListener {        Log.e(TAG, "Failed to create geofence")    }} 

广播接收器：

class GeofencebroadcastReceiver : broadcastReceiver() {    overrIDe fun onReceive(p0: Context?, p1: Intent?) {        Log.d(TAG, "onReceive")    }}

清单中的接收者：

<receiver androID:name=".GeofencebroadcastReceiver">    <intent-filter>        <action androID:name="com.example.GEOFENCE_Transition"/>    </intent-filter></receiver>

谢谢

编辑：IntentService版本

待定意图：

private val geofencePendingIntent: PendingIntent by lazy {    val intent = Intent(context, GeofenceIntentService::class.java)    PendingIntent.getService(context, 0, intent, PendingIntent.FLAG_UPDATE_CURRENT)}

意向服务：

class GeofenceIntentService : IntentService("GeofenceIntentService") {    overrIDe fun onHandleIntent(p0: Intent?) {        Log.d(TAG, "onHandleIntent")    }}

清单中的服务：

<service androID:name=".GeofenceIntentService"/>

解决方法:

在后台达到地理围栏转换时,您应该在AndroID 8上每隔几分钟获得一次Intent.

见：https://developer.android.com/training/location/geofencing#java

Handle geofence Transitions
When Location Services detects that the user has entered or exited a geofence, it sends out the Intent contained in the PendingIntent you included in the request to add geofences. This Intent is received by a service like GeofenceTransitionsIntentService, which obtains the geofencing event from the intent, determines the type of Geofence Transition(s), and determines which of the defined geofences was triggered. It then sends a notification as the output.

Note: On AndroID 8.0 (API level 26) and higher, if an app is running in the background while monitoring a geofence, then the device responds to geofencing events every couple of minutes. To learn how to adapt your app to these response limits, see Background Location limits.

一旦地理围栏服务被注册,它仍然存在,您没有其他任何事情要做,只检查您的IntentService以获取特定的PendingIntent,排除设备重启时您需要重新注册您的地理围栏服务.

另请查看：https://developer.android.com/about/versions/oreo/background-location-limits

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