在意识API中获取栅栏无效

Question

嗨，我是在应用程序中工作时必须在用户开始驾驶时通知的，我使用了Neura API，但它需要固定的通知，因此我正在使用意识API尝试。 我需要在AndroidManifest.xml中进行广播，因为我想触发该事件，即使该应用不在后台。 围栏的注册良好，广播是触发的，但我无法获得栅栏和弹性，我正在尝试不同的活动进行测试。

在AndroidManifest.xml中，我添加了权限，API密钥并宣布广播。

         <uses-permission android:name="android.permission.ACTIVITY_RECOGNITION" />
         <uses-permission android:name="com.google.android.gms.permission.ACTIVITY_RECOGNITION" />

        <receiver
            android:name=".usescase.receivers.FenceReceiver"
            android:exported="false">
            <intent-filter>
                <action android:name="com.safycab.safycab.FENCE_RECEIVER_ACTION" />
            </intent-filter>
        </receiver>

        <meta-data
            android:name="com.google.android.awareness.API_KEY"
            android:value="@string/awareness_key" />

这是我的fencereceiver.kt，这是当我拿到耳机围栏的事件时，我试图获得栅栏和fencestatus，但我得到了栅栏= null = null and fencestatus = 0

class FenceReceiver : BroadcastReceiver() {
    override fun onReceive(context: Context, intent: Intent) {
        val fenceState = FenceState.extract(intent)

        context.showLocalNotification("fence key " + fenceState.fenceKey + " fence state" + fenceState.currentState)
   }
}

我注册了围栏，这里检查并接受了所有权限，寄存器的工作正常

class FenceApiUtils(var activity: BaseActivity<*, *>) {

    var drivingFence = DetectedActivityFence.starting(DetectedActivityFence.IN_VEHICLE)

    var walkingFence = DetectedActivityFence.starting(DetectedActivityFence.ON_FOOT)

    val headPhoneFence = HeadphoneFence.during(HeadphoneState.PLUGGED_IN)

    fun createFences() {
        val intent = Intent(activity, FenceReceiver::class.java)

        val pendingIntent = PendingIntent.getBroadcast(
            activity.applicationContext, 0,
            intent,
            PendingIntent.FLAG_UPDATE_CURRENT or PendingIntent.FLAG_IMMUTABLE
        )

        Awareness.getFenceClient(activity).updateFences(
            FenceUpdateRequest.Builder()
                .addFence(VEHICLE_FENCE_KEY, drivingFence, pendingIntent)
                .addFence(WALKING_FENCE_KEY, walkingFence, pendingIntent)
                .addFence(HEADPHONE_FENCE, headPhoneFence, pendingIntent)
                .build()
        ).addOnSuccessListener {
            log("Fence was successfully registered.")
        }.addOnFailureListener {
            log("Fence could not be registered: ${it.message}")
        }
    }

}

如果我这样做，我可以检查栅栏是否正确注册

 fun queryFence(key: String) {
        Awareness.getFenceClient(requireActivity())
            .queryFences(FenceQueryRequest.forFences(listOf(key))).addOnSuccessListener {
                val map = it.fenceStateMap
                for (fenceKey in map.fenceKeys) {
                    val fenceState = map.getFenceState(fenceKey)
                    requireContext().showLocalNotification(
                        "Fence " + fenceKey + ": "
                                + fenceState?.currentState
                                + ", was="
                                + fenceState?.previousState
                    )
                }
            }.addOnFailureListener {
                log(it.message)
            }
    }

，并且我这样做我得到了正确的用户活动

Awareness.getSnapshotClient(requireActivity()).detectedActivity.addOnSuccessListener {
                val act = it.activityRecognitionResult
                val dtc = act.mostProbableActivity
                val conf = dtc.confidence
                val activityStr = dtc.toString()
                requireContext().showLocalNotification("Activity: $activityStr, Confidence: $conf/100")
            }.addOnFailureListener {
                log(it.message)
                log(it.localizedMessage)
            }

Answer 1

将未决的意图从 flag_immutable 更改为 flag_mutable ：

val pendingIntent = PendingIntent.getBroadcast(
    activity.applicationContext, 0,
    intent,
    PendingIntent.FLAG_UPDATE_CURRENT or PendingIntent.FLAG_MUTABLE
)

不幸的是，文档并未显示如何在 https://developers.google.com/awareness/awareness/android-api/fence-register ，但对我来说，这确实做到了这一点。