我可以通过始终在后台运行的服务跟踪 gps 纬度和经度吗?
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【中文标题】我可以通过始终在后台运行的服务跟踪 gps 纬度和经度吗?【英文标题】:Can I tracking gps latitude and longitude by a service that always run in background? 【发布时间】:2019-02-21 06:56:06 【问题描述】:我想通过在后台和应用程序未运行时执行的服务获取纬度和经度。 有没有人用一个例子来指导我? 最重要的是,当程序完全关闭时,服务会正常工作并显示经纬度。 我的请求与以下链接非常相似。
getting latitude and longitude using gps every 10 minute in background android
我在后台或程序关闭时寻找的所有应用程序均未正确执行。
谢谢
【问题讨论】:
【参考方案1】:尝试使用此代码在后台服务中定期获取位置更新
更改 LOCATION_INTERVAL &
import android.app.Service;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.location.Location;
import android.location.LocationManager;
import android.os.Bundle;
import android.os.IBinder;
import android.support.v4.app.ActivityCompat;
import android.util.Log;
public class MyLocationService extends Service
private static final String TAG = "MyLocationService";
private LocationManager mLocationManager = null;
private static final int LOCATION_INTERVAL = 1000;
private static final float LOCATION_DISTANCE = 10f;
private class LocationListener implements android.location.LocationListener
Location mLastLocation;
public LocationListener(String provider)
Log.e(TAG, "LocationListener " + provider);
mLastLocation = new Location(provider);
@Override
public void onLocationChanged(Location location)
Log.e(TAG, "onLocationChanged: " + location);
mLastLocation.set(location);
@Override
public void onProviderDisabled(String provider)
Log.e(TAG, "onProviderDisabled: " + provider);
@Override
public void onProviderEnabled(String provider)
Log.e(TAG, "onProviderEnabled: " + provider);
@Override
public void onStatusChanged(String provider, int status, Bundle extras)
Log.e(TAG, "onStatusChanged: " + provider);
/*
LocationListener[] mLocationListeners = new LocationListener[]
new LocationListener(LocationManager.GPS_PROVIDER),
new LocationListener(LocationManager.NETWORK_PROVIDER)
;
*/
LocationListener[] mLocationListeners = new LocationListener[]
new LocationListener(LocationManager.PASSIVE_PROVIDER)
;
@Override
public IBinder onBind(Intent arg0)
return null;
@Override
public int onStartCommand(Intent intent, int flags, int startId)
Log.e(TAG, "onStartCommand");
super.onStartCommand(intent, flags, startId);
return START_STICKY;
@Override
public void onCreate()
Log.e(TAG, "onCreate");
initializeLocationManager();
try
mLocationManager.requestLocationUpdates(
LocationManager.PASSIVE_PROVIDER,
LOCATION_INTERVAL,
LOCATION_DISTANCE,
mLocationListeners[0]
);
catch (java.lang.SecurityException ex)
Log.i(TAG, "fail to request location update, ignore", ex);
catch (IllegalArgumentException ex)
Log.d(TAG, "network provider does not exist, " + ex.getMessage());
/*try
mLocationManager.requestLocationUpdates(
LocationManager.GPS_PROVIDER,
LOCATION_INTERVAL,
LOCATION_DISTANCE,
mLocationListeners[1]
);
catch (java.lang.SecurityException ex)
Log.i(TAG, "fail to request location update, ignore", ex);
catch (IllegalArgumentException ex)
Log.d(TAG, "gps provider does not exist " + ex.getMessage());
*/
@Override
public void onDestroy()
Log.e(TAG, "onDestroy");
super.onDestroy();
if (mLocationManager != null)
for (int i = 0; i < mLocationListeners.length; i++)
try
if (ActivityCompat.checkSelfPermission(this, android.Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, android.Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED)
return;
mLocationManager.removeUpdates(mLocationListeners[i]);
catch (Exception ex)
Log.i(TAG, "fail to remove location listener, ignore", ex);
private void initializeLocationManager()
Log.e(TAG, "initializeLocationManager - LOCATION_INTERVAL: "+ LOCATION_INTERVAL + " LOCATION_DISTANCE: " + LOCATION_DISTANCE);
if (mLocationManager == null)
mLocationManager = (LocationManager) getApplicationContext().getSystemService(Context.LOCATION_SERVICE);
【讨论】:
你可以在正确的地方添加一个 toast 以在应用程序未运行时显示 lat 和 lon 吗?当应用程序运行时一切正常,但是当应用程序关闭时我的服务停止了。 您在哪个 android 版本上运行此代码?以上是关于我可以通过始终在后台运行的服务跟踪 gps 纬度和经度吗?的主要内容,如果未能解决你的问题,请参考以下文章
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