在Android中,如何连续接收GPS位置?
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【中文标题】在Android中,如何连续接收GPS位置?【英文标题】:In Android ,how to receive GPS location continuously? 【发布时间】:2018-02-17 00:00:48 【问题描述】:android.location.LocationListener 的位置监听器 onLocationChanged() 函数中的问题。
在下面的代码中请求 LocationManager 的 requestLocationUpdates 后,onLocationChanged 以不均匀的间隔被调用,即我将周期设置为 1 秒,但每秒后我没有收到位置更改。
import android.content.Context;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.util.Log;
@SuppressWarnings("MissingPermission")
public class SimplePositionProvider extends PositionProvider implements LocationListener
public SimplePositionProvider(Context context, PositionListener listener)
super(context, listener);
Log.i("SimplePositionProvider", "start");
if (!type.equals(LocationManager.NETWORK_PROVIDER))
type = LocationManager.GPS_PROVIDER;
public void startUpdates()
Log.i("startUpdates", "start");
try
Log.i("requestLocationUpdates", "start");
Log.i("TYPE", type);
locationManager.requestLocationUpdates(type, period, 0, this);
catch (Exception e)
e.printStackTrace();
Log.e(TAG, "error");
public void stopUpdates()
Log.i("stopUpdates", "start");
locationManager.removeUpdates(this);
@Override
public void onLocationChanged(Location location)
Log.i("onLocationChanged", "start");
updateLocation(location);
@Override
public void onStatusChanged(String provider, int status, Bundle extras)
Log.i("onStatusChanged", "start");
@Override
public void onProviderEnabled(String provider)
Log.i("onProviderEnabled", "start");
@Override
public void onProviderDisabled(String provider)
Log.i("onProviderDisabled", "start");
【问题讨论】:
创建定位服务以连续获取位置 【参考方案1】:根据tutorial,您应该使用FusedLocationProviderClient 来请求位置更新。如果没有记忆,该解决方案会以指定的时间间隔发送更新。您可以通过调用LocationServices.getFusedLocationProviderClient(Context context)
获得FusedLocationProviderClient
。
您可以在LocationRequest 和setExpirationDuration
中设置请求过期持续时间,然后在每次过期后重新启动更新时使用类似以下代码:
Handler handler = new Handler(Looper.myLooper());
handler.postDelayed(new Runnable()
@Override
public void run()
if (expectingLocationUpdates)
restartLocationUpdates();
, EXPIRATION_DURATION);
【讨论】:
【参考方案2】:public class CustomLocationService extends Service implements LocationListener
private static final Location TODO = null;
boolean isGPSEnabled = false;
boolean isNetworkEnabled = false;
public boolean canGetLocation = false;
Location location;
double latitude;
double longitude;
private static final long MIN_DISTANCE_CHANGE_FOR_UPDATES = 0;
private static final long MIN_TIME_BW_UPDATES = 10000 * 60 * 1;
private CommonSharedPreference commonSharedPreference = new CommonSharedPreference();
protected LocationManager locationManager;
private long time;
Context context;
@Override
public void onCreate()
super.onCreate();
context = this;
time = MIN_TIME_BW_UPDATES;
getLocation();
@Override
public void onStart(Intent intent, int startId)
getLocation();
@Override
public void onDestroy()
// handler.removeCallbacks(sendUpdatesToUI);
super.onDestroy();
Log.v("STOP_SERVICE", "DONE");
locationManager.removeUpdates(GPSTracker.this);
public Location getLocation()
try
locationManager = (LocationManager) context.getSystemService(LOCATION_SERVICE);
isGPSEnabled = locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER);
isNetworkEnabled = locationManager.isProviderEnabled(LocationManager.NETWORK_PROVIDER);
if (!isGPSEnabled && !isNetworkEnabled)
// no network provider is enabled
else
this.canGetLocation = true;
// First get location from Network Provider
if (isNetworkEnabled)
if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED)
return TODO;
locationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, MIN_TIME_BW_UPDATES, MIN_DISTANCE_CHANGE_FOR_UPDATES, this);
if (locationManager != null)
location = locationManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
if (location != null)
latitude = location.getLatitude();
longitude = location.getLongitude();
// if GPS Enabled get lat/long using GPS Services
if (isGPSEnabled)
if (location == null)
locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, MIN_TIME_BW_UPDATES, MIN_DISTANCE_CHANGE_FOR_UPDATES, this);
if (locationManager != null)
location = locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);
if (location != null)
latitude = location.getLatitude();
longitude = location.getLongitude();
catch (Exception e)
e.printStackTrace();
return location;
public void stopUsingGPS()
if(locationManager != null)
locationManager.removeUpdates(GPSTracker.this);
public double getLatitude()
if(location != null)
latitude = location.getLatitude();
return latitude;
public double getLongitude()
if(location != null)
longitude = location.getLongitude();
return longitude;
public boolean canGetLocation()
return this.canGetLocation;
@Override
public void onLocationChanged(Location arg0)
// TODO Auto-generated method stub
@Override
public void onProviderDisabled(String arg0)
// TODO Auto-generated method stub
@Override
public void onProviderEnabled(String arg0)
// TODO Auto-generated method stub
@Override
public void onStatusChanged(String arg0, int arg1, Bundle arg2)
// TODO Auto-generated method stub
@Override
public IBinder onBind(Intent intent)
// TODO Auto-generated method stub
return null;
【讨论】:
您好,首先感谢您的代码,但我的问题不是没有收到位置,而是始终没有得到它们!您正在使用 locationManager 的最后一个已知位置,我们被要求不要使用,我们希望以 30 秒为间隔获取当前位置 一旦服务成为明星,onLocationChanged 将在给定的时间间隔内为您提供当前位置【参考方案3】:According to the documentation,您使用的period
参数是位置更新之间的最小间隔。如果您想在定位系统更新时尽快获取位置,请将period
设置为零。
【讨论】:
谢谢,但我们面临的问题是,位置接收不稳定,一段时间后断开连接。在模拟器中连续接收位置没有问题。 @BonnySebastian 您应该重新提出您的问题。这似乎不是它要问的。【参考方案4】:使用这个类..
public class MyLocationService extends Service
private static final String TAG = "MyLocationService";
private LocationManager mLocationManager = null;
private static final int LOCATION_INTERVAL = 1000 * 30;;
private static final float LOCATION_DISTANCE = 0f;
private final IBinder serviceBinder = new MyLocationService.RunServiceBinder();
public MyLocationService()
LocationListener[] mLocationListeners = new LocationListener[]
new LocationListener(LocationManager.GPS_PROVIDER),
;
@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.NETWORK_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, "network provider does not exist, " + ex.getMessage());
*/
try
mLocationManager.requestLocationUpdates(
LocationManager.GPS_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, "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 removeUpdate()
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);
@Override
public IBinder onBind(Intent intent)
// TODO: Return the communication channel to the service.
// throw new UnsupportedOperationException("Not yet implemented");
return null;
public class RunServiceBinder extends Binder
public MyLocationService getService()
return MyLocationService.this;
private class LocationListener implements android.location.LocationListener
Location mLastLocation;
public LocationListener(String provider)
Log.e(TAG, "LocationListener " + provider);
// Toast.makeText(MyLocationService.this, ""+provider, Toast.LENGTH_SHORT).show();
mLastLocation = new Location(provider);
@Override
public void onLocationChanged(Location location)
Log.e(TAG, "onLocationChanged: " + location);
// Toast.makeText(MyLocationService.this, ""+"checked", Toast.LENGTH_SHORT).show();
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);
【讨论】:
放置在我的玻璃桌子上时启动和停止需要时间(与我上面的代码相同)以上是关于在Android中,如何连续接收GPS位置?的主要内容,如果未能解决你的问题,请参考以下文章