如何在不在 android 的 Activity 上添加地图片段的情况下获取我的位置？
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【中文标题】如何在不在 android 的 Activity 上添加地图片段的情况下获取我的位置？【英文标题】：How can I get my location without adding Map fragment on Activity in android? 【发布时间】：2018-03-13 05:51:03 【问题描述】：我获得了位置许可并进行了服务，但是我不知道如何在不添加地图片段的情况下从服务中获取我的位置。 我需要获取我的位置并在我的 TextView 上设置文本。 //我不需要在这个活动中获取片段 我需要在 TextView 中使用 post 方法吗？以及如何从服务中获取位置？ 请帮我！谢谢
这是我的 MainActivity.java 扩展 PermissionActivity
@Override
protected void onCreate(Bundle savedInstanceState)
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
@Override
public void onCheckedChanged(CompoundButton compoundButton, boolean b)
switch (compoundButton.getId())
case R.id.locationSwitch:
Constants.checkFineLocationPermission(MainActivity.this);
if(compoundButton.isChecked())
Intent intent = new Intent(MainActivity.this, LocationService.class);
startService(intent);
else
Intent intent = new Intent(MainActivity.this, LocationService.class);
stopService(intent);
break;
这是 PermissionActivity。
public void onRequestPermissionsResult(int requestCode, String permissions[],int[] grantResults)
switch (requestCode)
case MY_PERMISSIONS_REQUEST_FINE_LOCATION:
if(grantResults.length>0 && grantResults[0]== PackageManager.PERMISSION_GRANTED)
Intent intent = new Intent(getApplicationContext(),getClass());
startActivity(intent);
finish();
else
// Log.d("Permission always denyed");
Intent intent = new Intent(Settings.ACTION_APPLICATION_DETAILS_SETTINGS)
.setData(Uri.parse("package:"+ getApplicationContext().getPackageName()));
startActivity(intent);
return;
这就是服务
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)
;
@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.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
mLocationManager.removeUpdates(mLocationListeners[i]);
catch (Exception ex)
Log.i(TAG, "fail to remove location listners, ignore", ex);
private void initializeLocationManager()
Log.e(TAG, "initializeLocationManager");
if (mLocationManager == null)
mLocationManager = (LocationManager) getApplicationContext().getSystemService(Context.LOCATION_SERVICE);
【问题讨论】：
你不需要地图，用LocationManager获取位置？ 我的意思是 LocationManager 的实例存在于我的服务中，我不知道如何访问该实例.. 我可以使用 getter 方法获得那个实例吗？ 那堂课我需要什么样的方法？我需要获取详细的位置，例如城市、街道等 如果它在服务中，使用广播接收器以便从活动中获取更新的位置 哦.. 比我需要学习有关 borad cast 接收器的知识！非常感谢：） 【参考方案1】：您应该使用 Google Fused Location Service。它提供了最准确的位置。学习here 和here 教程。所以基本上只是把这些东西投入使用。
【讨论】：
谢谢我用你的 URL 做的，我什至不知道它是否存在 :) @J.ho 很高兴为您提供帮助 :)【参考方案2】：尝试使用这个类 通过调用
private void getCurrentLocation()
GPSTracker gps = new GPSTracker(activity);
// check if GPS enabled
if (gps.canGetLocation())
double latitude = gps.getLatitude();
double longitude = gps.getLongitude();
// Do What you want to do
public class GPSTracker extends Service implements LocationListener
private final Context mContext;
// flag for GPS status
boolean isGPSEnabled = false;
// flag for network status
boolean isNetworkEnabled = false;
// flag for GPS status
boolean canGetLocation = false;
Location location; // location
double latitude; // latitude
double longitude; // longitude
// The minimum distance to change Updates in meters
private static final long MIN_DISTANCE_CHANGE_FOR_UPDATES = 10; // 10 meters
// The minimum time between updates in milliseconds
private static final long MIN_TIME_BW_UPDATES = 1000 * 60 * 1; // 1 minute
// Declaring a Location Manager
protected LocationManager locationManager;
public GPSTracker(Context context)
this.mContext = context;
getLocation();
public Location getLocation()
try
locationManager = (LocationManager) mContext
.getSystemService(LOCATION_SERVICE);
// getting GPS status
isGPSEnabled = locationManager
.isProviderEnabled(LocationManager.GPS_PROVIDER);
// getting network status
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)
try
locationManager.requestLocationUpdates(
LocationManager.NETWORK_PROVIDER,
MIN_TIME_BW_UPDATES,
MIN_DISTANCE_CHANGE_FOR_UPDATES, this);
Log.e("Network", "Network");
if (locationManager != null)
location = locationManager
.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
if (location != null)
latitude = location.getLatitude();
longitude = location.getLongitude();
catch (SecurityException e)
Log.e("SecurityException", " 1 " + e.toString());
// if GPS Enabled get lat/long using GPS Services
if (isGPSEnabled)
if (location == null)
try
locationManager.requestLocationUpdates(
LocationManager.GPS_PROVIDER,
MIN_TIME_BW_UPDATES,
MIN_DISTANCE_CHANGE_FOR_UPDATES, this);
Log.e("GPS Enabled", "GPS Enabled");
if (locationManager != null)
location = locationManager
.getLastKnownLocation(LocationManager.GPS_PROVIDER);
if (location != null)
latitude = location.getLatitude();
longitude = location.getLongitude();
catch (SecurityException e)
Log.e("SecurityException", " 2 " + e.toString());
catch (Exception e)
e.printStackTrace();
return location;
public void stopUsingGPS()
if (locationManager != null)
try
locationManager.removeUpdates(GPSTracker.this);
catch (SecurityException e)
Log.e("SecurityException", " 3 " + e.toString());
public double getLatitude()
if (location != null)
latitude = location.getLatitude();
// return latitude
return latitude;
public double getLongitude()
if (location != null)
longitude = location.getLongitude();
// return longitude
return longitude;
public boolean canGetLocation()
return this.canGetLocation;
public void showSettingsAlert(final Activity activity)
new MaterialDialog.Builder(activity)
.title(R.string.EnableGPS_st)
.content(R.string.GPSSittings_st)
.contentColor(UiConstants.Colors.colorBlack)
.titleColor(UiConstants.Colors.colorBlack)
.positiveColor(UiConstants.Colors.colorBlack)
.negativeColor(UiConstants.Colors.colorBlack)
.positiveText(R.string.Settings_st)
.negativeText(R.string.cancel_st)
.callback(new MaterialDialog.ButtonCallback()
@Override
public void onPositive(MaterialDialog dialog)
dialog.dismiss();
Intent intent = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS);
activity.startActivity(intent);
@Override
public void onNegative(MaterialDialog dialog)
super.onNegative(dialog);
dialog.dismiss();
).cancelable(false)
.show();
@Override
public void onLocationChanged(Location location)
@Override
public void onProviderDisabled(String provider)
@Override
public void onProviderEnabled(String provider)
@Override
public void onStatusChanged(String provider, int status, Bundle extras)
@Override
public IBinder onBind(Intent arg0)
return null;
【讨论】：
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