geofencing 相关问题

地理围栏是现实世界地理区域的虚拟边界。当位置感知设备穿过此虚拟边界时，地理围栏是一种通知方式。

检查纬度和经度是否位于地理围栏半径内

我正在开发一个应用程序。我需要地理围栏来检查特定的纬度和经度位于特定半径内。我正在学习地理围栏教程，但我的问题是......

android google-maps geofencing

回答 4 投票 0

即使在 ios (Flutter) 中应用程序终止后也能持续跟踪位置并生成本地通知

我正在开发一个flutter应用程序来执行地理围栏并生成本地通知，即使应用程序处于后台或终止时也是如此。我使用background_services、flutter_local_notification、geolocator

ios swift flutter location geofencing

回答 1 投票 0

我的地理围栏正在工作，但地理围栏过渡对象为空

Android.Manifest.xml Android.Manifest.xml <?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" xmlns:tools="http://schemas.android.com/tools"> <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" /> <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" /> <uses-permission android:name="android.permission.ACCESS_BACKGROUND_LOCATION" /> <uses-permission android:name="android.permission.POST_NOTIFICATIONS"/> <uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" android:maxSdkVersion="32" /> <application android:allowBackup="true" android:dataExtractionRules="@xml/data_extraction_rules" android:fullBackupContent="@xml/backup_rules" android:icon="@mipmap/ic_launcher" android:label="@string/app_name" android:roundIcon="@mipmap/ic_launcher_round" android:supportsRtl="true" android:theme="@style/Theme.Geo" tools:targetApi="31"> <activity android:name=".MainActivity" android:exported="true"> </activity> <uses-library android:name="org.apache.http.legacy" android:required="false" /> <service android:name=".MapsActivity" android:foregroundServiceType="location" />   <meta-data android:name="com.google.android.geo.API_KEY" android:value="${MAPS_API_KEY}" /> <meta-data android:name="com.google.android.gms.version" android:value="@integer/google_play_services_version" /> <activity android:name=".MapsActivity" android:exported="true" android:label="@string/title_activity_maps"> <intent-filter> <action android:name="android.intent.action.MAIN" /> <category android:name="android.intent.category.LAUNCHER" /> </intent-filter> </activity> <receiver android:name=".GeofenceBroadcastReceiver" android:exported="true" android:permission="TODO"> <intent-filter> <action android:name="com.google.android.gms.location.ACTION_GEOFENCE_TRANSITION" /> </intent-filter> </receiver> </application> </manifest> MapsActivity package com.example.geo import android.os.Build import androidx.appcompat.app.AppCompatActivity import android.os.Bundle import androidx.annotation.RequiresApi import com.google.android.gms.maps.CameraUpdateFactory import com.google.android.gms.maps.GoogleMap import com.google.android.gms.maps.OnMapReadyCallback import com.google.android.gms.maps.SupportMapFragment import com.google.android.gms.maps.model.LatLng import com.google.android.gms.maps.model.MarkerOptions import com.example.geo.databinding.ActivityMapsBinding import android.Manifest import android.app.NotificationChannel import android.app.NotificationManager import android.app.PendingIntent import android.content.Intent import android.content.pm.PackageManager import android.graphics.Color import android.location.Location import android.os.Looper import androidx.core.app.ActivityCompat import androidx.core.app.NotificationCompat import androidx.core.content.ContextCompat import com.google.android.gms.common.internal.Constants import com.google.android.gms.location.FusedLocationProviderClient import com.google.android.gms.location.Geofence import com.google.android.gms.location.GeofencingClient import com.google.android.gms.location.GeofencingRequest import com.google.android.gms.location.LocationCallback import com.google.android.gms.location.LocationRequest import com.google.android.gms.location.LocationResult import com.google.android.gms.location.LocationServices import com.google.android.gms.maps.model.CircleOptions import com.google.android.gms.maps.model.Marker const val CHANNEL_ID = "GeoChannel" class MapsActivity : AppCompatActivity(), OnMapReadyCallback { private lateinit var mMap: GoogleMap private lateinit var binding: ActivityMapsBinding private lateinit var geofencingClient: GeofencingClient private val REQUEST_CODE = 0 private val geo_Id = "MyGeofence" private val entry_latitude = 26.267775 private val entry_longitude = 81.505404 private val geoRad = 282F private val expiration_time = 10000000000000 private lateinit var fusedLocationClient: FusedLocationProviderClient private lateinit var locationCallback: LocationCallback private var permissions = arrayOf( Manifest.permission.ACCESS_FINE_LOCATION, Manifest.permission.ACCESS_COARSE_LOCATION, Manifest.permission.POST_NOTIFICATIONS ) private var geofencelist : MutableList<Geofence> = mutableListOf() @RequiresApi(Build.VERSION_CODES.Q) override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) binding = ActivityMapsBinding.inflate(layoutInflater) setContentView(binding.root) //Notification channel if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) { // Create the NotificationChannel. val name = "Work" val descriptionText = "geofencing" val importance = NotificationManager.IMPORTANCE_HIGH val mChannel = NotificationChannel(CHANNEL_ID, name, importance) mChannel.description = descriptionText // Register the channel with the system. You can't change the importance // or other notification behaviors after this. val notificationManager = getSystemService(NOTIFICATION_SERVICE) as NotificationManager notificationManager.createNotificationChannel(mChannel) //mChannel. } val textTitle = "You hae checked in " val textContent = "dggdgfdf" // Create an explicit intent for an Activity in your app. val intent = Intent(this, MainActivity::class.java).apply { flags = Intent.FLAG_ACTIVITY_NEW_TASK or Intent.FLAG_ACTIVITY_CLEAR_TASK } val pendingIntent: PendingIntent = PendingIntent.getActivity(this, 0, intent, PendingIntent.FLAG_IMMUTABLE) // val builder = NotificationCompat.Builder(this, CHANNEL_ID) // .setSmallIcon(R.drawable.notification_icon) // .setContentTitle("My notification") // .setContentText("Hello World!") // .setPriority(NotificationCompat.PRIORITY_DEFAULT) // // Set the intent that fires when the user taps the notification. // .setContentIntent(pendingIntent) // .setAutoCancel(true) //Location fusedLocationClient = LocationServices.getFusedLocationProviderClient(this) //Location permission when { permissions.all { ContextCompat.checkSelfPermission(this, it) == PackageManager.PERMISSION_GRANTED } -> { // Fine and coarse location permissions granted } permissions.any { ActivityCompat.shouldShowRequestPermissionRationale(this, it) } -> { // Show rationale for fine/coarse location // showInContextUI(...) } else -> { // Request fine/coarse location permissions ActivityCompat.requestPermissions(this, permissions, REQUEST_CODE) } } //For background location // if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) { // // Check for background location on API 29+ // ActivityCompat.requestPermissions( // this, // arrayOf(Manifest.permission.ACCESS_BACKGROUND_LOCATION), // REQUEST_CODE // ) // } if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.Q) { if ( ContextCompat.checkSelfPermission( this, Manifest.permission.ACCESS_BACKGROUND_LOCATION ) == PackageManager.PERMISSION_GRANTED ) { // All permissions granted, perform action // performAction(...) } // ActivityCompat.shouldShowRequestPermissionRationale( // this, // Manifest.permission.ACCESS_BACKGROUND_LOCATION // ) -> { // // Show rationale for background location // //showInContextUI(...) else {// Request background location permission ActivityCompat.requestPermissions( this, arrayOf(Manifest.permission.ACCESS_BACKGROUND_LOCATION), REQUEST_CODE ) } } //Geofencing geofencingClient = LocationServices.getGeofencingClient(this) geofencelist.add(Geofence.Builder() // Set the request ID of the geofence. This is a string to identify this // geofence. .setRequestId(geo_Id) // Set the circular region of this geofence. .setCircularRegion( entry_latitude, entry_longitude, geoRad ) // Set the expiration duration of the geofence. This geofence gets automatically // removed after this period of time. .setExpirationDuration(expiration_time) // Set the transition types of interest. Alerts are only generated for these // transition. We track entry and exit transitions in this sample. .setTransitionTypes(Geofence.GEOFENCE_TRANSITION_ENTER or Geofence.GEOFENCE_TRANSITION_EXIT ) .setLoiteringDelay(10000) // Create the geofence. .build()) val geofencePendingIntent: PendingIntent by lazy { val intent = Intent(this, GeofenceBroadcastReceiver::class.java) // intent.action = ACTION_GEOFENCE_EVENT val flags = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) { PendingIntent.FLAG_UPDATE_CURRENT or PendingIntent.FLAG_IMMUTABLE } else { PendingIntent.FLAG_UPDATE_CURRENT } PendingIntent.getBroadcast(this, 0, intent, flags) } geofencingClient.addGeofences(getGeofencingRequest(), geofencePendingIntent).run { addOnSuccessListener { // Geofences added val fence = LatLng(entry_latitude, entry_longitude) mMap.addMarker(MarkerOptions().position(fence).title("Marker in center")) mMap.moveCamera(CameraUpdateFactory.newLatLng(fence)) val geofenceCircle = mMap.addCircle( CircleOptions() .center(LatLng(entry_latitude, entry_longitude)) .radius(geoRad.toDouble()) .strokeColor(Color.GREEN) .fillColor(Color.argb(64, 0, 125, 0)) ) } addOnFailureListener { // Failed to add geofences // ... } } // Obtain the SupportMapFragment and get notified when the map is ready to be used. val mapFragment = supportFragmentManager .findFragmentById(R.id.map) as SupportMapFragment mapFragment.getMapAsync(this) } /** * Manipulates the map once available. * This callback is triggered when the map is ready to be used. * This is where we can add markers or lines, add listeners or move the camera. In this case, * we just add a marker near Sydney, Australia. * If Google Play services is not installed on the device, the user will be prompted to install * it inside the SupportMapFragment. This method will only be triggered once the user has * installed Google Play services and returned to the app. */ override fun onMapReady(googleMap: GoogleMap) { mMap = googleMap enableMyLocation() // Live location fusedLocationClient = LocationServices.getFusedLocationProviderClient(this) locationCallback = object : LocationCallback() { override fun onLocationResult(locationResult: LocationResult) { for (location in locationResult.locations) { val cur = LatLng(location.latitude, location.longitude) mMap.animateCamera(CameraUpdateFactory.newLatLngZoom(cur,20f)) } } } startLocationUpdates() } override fun onRequestPermissionsResult(requestCode: Int, permissions: Array<String>, grantResults: IntArray) { super.onRequestPermissionsResult(requestCode, permissions, grantResults) when (requestCode) { REQUEST_CODE -> { // If request is cancelled, the result arrays are empty. if ((grantResults.isNotEmpty() && grantResults[0] == PackageManager.PERMISSION_GRANTED)) { // Permission is granted. Continue the action or workflow // in your app. } else { // Explain to the user that the feature is unavailable because // the feature requires a permission that the user has denied. // At the same time, respect the user's decision. Don't link to // system settings in an effort to convince the user to change // their decision. } return } // Add other 'when' lines to check for other // permissions this app might request. else -> { // Ignore all other requests. } } } private fun getGeofencingRequest(): GeofencingRequest { return GeofencingRequest.Builder().apply { setInitialTrigger(GeofencingRequest.INITIAL_TRIGGER_ENTER) addGeofences(geofencelist) }.build() } private fun startLocationUpdates() { // ... request location permissions ... val locationRequest = LocationRequest.create().apply { interval = 100// Update interval in milliseconds fastestInterval = 500 priority = LocationRequest.PRIORITY_HIGH_ACCURACY } if (ActivityCompat.checkSelfPermission( this, Manifest.permission.ACCESS_FINE_LOCATION ) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission( this, Manifest.permission.ACCESS_COARSE_LOCATION ) != PackageManager.PERMISSION_GRANTED ) { // TODO: Consider calling // ActivityCompat#requestPermissions // here to request the missing permissions, and then overriding // public void onRequestPermissionsResult(int requestCode, String[] permissions, // int[] grantResults) // to handle the case where the user grants the permission. See the documentation // for ActivityCompat#requestPermissions for more details. return } fusedLocationClient.requestLocationUpdates(locationRequest, locationCallback, Looper.getMainLooper()) } private fun enableMyLocation() { // Check if location permissions are granted if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED) { // Enable the blue dot on the map if permissions are granted mMap.isMyLocationEnabled = true } else { // Request location permissions if not granted ActivityCompat.requestPermissions(this, arrayOf(Manifest.permission.ACCESS_FINE_LOCATION), REQUEST_CODE) } } companion object { internal const val ACTION_GEOFENCE_EVENT = "com.google.android.gms.location.ACTION_GEOFENCE_TRANSITION" } } const val TAGED = "TAGED" GeofenceBroadcastReceiver package com.example.geo import android.content.BroadcastReceiver import android.content.ContentValues.TAG import android.content.Context import android.content.Intent import android.content.pm.PackageManager import android.util.Log import androidx.core.app.ActivityCompat import androidx.core.app.NotificationManagerCompat import com.google.android.gms.location.Geofence import com.google.android.gms.location.GeofenceStatusCodes import com.google.android.gms.location.GeofencingEvent import android.Manifest import androidx.core.app.NotificationCompat import com.example.geo.MapsActivity.Companion.ACTION_GEOFENCE_EVENT class GeofenceBroadcastReceiver : BroadcastReceiver() { override fun onReceive(context: Context?, intent: Intent?) { Log.d(TAGED, "GeofenceBroadcastReceiver triggered") // if (intent != null) { // if (intent.action == ACTION_GEOFENCE_EVENT) { val geofencingEvent = intent?.let { GeofencingEvent.fromIntent(it) } if (geofencingEvent != null && geofencingEvent.hasError()) { val errorMessage = GeofenceStatusCodes.getStatusCodeString(geofencingEvent.errorCode) Log.e(TAGED, "Geofencing error: $errorMessage") return } val geofenceTransition = geofencingEvent?.geofenceTransition Log.d(TAGED, "Geofence transition: $geofenceTransition") if (geofenceTransition == Geofence.GEOFENCE_TRANSITION_ENTER || geofenceTransition == Geofence.GEOFENCE_TRANSITION_EXIT ) { // Get the geofences that were triggered. A single event can trigger multiple geofences. val triggeringGeofences = geofencingEvent.triggeringGeofences // Get the transition details as a String. val geofenceTransitionDetails = triggeringGeofences?.let { getGeofenceTransitionDetails( context!!, geofenceTransition, it ) } // Send notification and log the transition details. if (geofenceTransitionDetails != null) { sendNotification(context!!, geofenceTransitionDetails) } if (geofenceTransitionDetails != null) { Log.i(TAGED, geofenceTransitionDetails) } } else { Log.e(TAGED, "Geofence transition not handled: $geofenceTransition") } // } // } } private fun sendNotification(context:Context, message: String?) { val builder = NotificationCompat.Builder(context, CHANNEL_ID) .setSmallIcon(R.drawable.notification_icon) // Replace with your notification icon .setContentTitle("Geofence Alert") .setContentText(message) .setPriority(NotificationCompat.PRIORITY_HIGH) .setAutoCancel(true) val notificationManager = NotificationManagerCompat.from(context) if (ActivityCompat.checkSelfPermission(context, Manifest.permission.POST_NOTIFICATIONS) != PackageManager.PERMISSION_GRANTED) { // Consider requesting the missing permission here return } val notificationId = 123 // You can use a unique ID for each notification notificationManager.notify(notificationId, builder.build()) } private fun getGeofenceTransitionDetails( context: Context,geofenceTransition: Int, triggeringGeofences: List<Geofence> ): String { val geofenceTransitionString = when (geofenceTransition) { Geofence.GEOFENCE_TRANSITION_ENTER -> "Entered" Geofence.GEOFENCE_TRANSITION_EXIT -> "Exited" Geofence.GEOFENCE_TRANSITION_DWELL -> "Dwell" else -> "Unknown Transition" } // Get the Ids of each geofence that was triggered. val triggeringGeofencesIdsList = mutableListOf<String>() for (geofence in triggeringGeofences) { triggeringGeofencesIdsList.add(geofence.requestId) } val triggeringGeofencesIdsString = triggeringGeofencesIdsList.joinToString(", ") return "Geofence transition: $geofenceTransitionString - $triggeringGeofencesIdsString" } } 我尝试获取日志消息，我收到了这些消息 2024-08-25 23:30:36.829 13719-13719 TAGED com.example.geo D GeofenceBroadcastReceiver triggered 2024-08-25 23:30:36.829 13719-13719 TAGED com.example.geo D Geofence transition: null 2024-08-25 23:30:36.829 13719-13719 TAGED com.example.geo E Geofence transition not handled: null why I 1。检查意图操作 <receiver android:name=".GeofenceBroadcastReceiver" android:exported="true"> <intent-filter> <action android:name="com.google.android.gms.location.ACTION_GEOFENCE_TRANSITION" /> </intent-filter> </receiver> 在您的 GeofenceBroadcastReceiver 中，检查以下内容： if (intent?.action == "com.google.android.gms.location.ACTION_GEOFENCE_TRANSITION") { // Your geofence processing code here } 2。检查地理围栏事件错误 val geofencingEvent = GeofencingEvent.fromIntent(intent) if (geofencingEvent.hasError()) { val errorMessage = GeofenceStatusCodes.getStatusCodeString(geofencingEvent.errorCode) Log.e(TAGED, "Geofencing error: $errorMessage") return }

android kotlin background location geofencing

回答 1 投票 0

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我尝试从Android开发人员运行此应用程序：https://developer.android.com/codelabs/advanced-android-kotlin-training-geofencing?authuser=2#0 正在添加地理围栏，但什么也没有

android maps broadcastreceiver geofencing

回答 2 投票 0

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.htaccess http-redirect geofencing

回答 1 投票 0

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