如何检查定位服务是否启用？

我正在开发Android操作系统上的应用程序。 我不知道如何检查位置服务是否启用。

我需要一个方法，如果它们被启用则返回“true”，如果不是，则返回“false”（所以在最后的情况下，我可以显示一个对话框来启用它们）。

Answer 1

您可以使用下面的代码来检查是否启用gps提供商和networking提供商。

LocationManager lm = (LocationManager)context.getSystemService(Context.LOCATION_SERVICE); boolean gps_enabled = false; boolean network_enabled = false; try { gps_enabled = lm.isProviderEnabled(LocationManager.GPS_PROVIDER); } catch(Exception ex) {} try { network_enabled = lm.isProviderEnabled(LocationManager.NETWORK_PROVIDER); } catch(Exception ex) {} if(!gps_enabled && !network_enabled) { // notify user AlertDialog.Builder dialog = new AlertDialog.Builder(context); dialog.setMessage(context.getResources().getString(R.string.gps_network_not_enabled)); dialog.setPositiveButton(context.getResources().getString(R.string.open_location_settings), new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface paramDialogInterface, int paramInt) { // TODO Auto-generated method stub Intent myIntent = new Intent( Settings.ACTION_LOCATION_SOURCE_SETTINGS); context.startActivity(myIntent); //get gps } }); dialog.setNegativeButton(context.getString(R.string.Cancel), new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface paramDialogInterface, int paramInt) { // TODO Auto-generated method stub } }); dialog.show(); } 

Answer 2

我使用这个代码来检查：

 public static boolean isLocationEnabled(Context context) { int locationMode = 0; String locationProviders; if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT){ try { locationMode = Settings.Secure.getInt(context.getContentResolver(), Settings.Secure.LOCATION_MODE); } catch (SettingNotFoundException e) { e.printStackTrace(); return false; } return locationMode != Settings.Secure.LOCATION_MODE_OFF; }else{ locationProviders = Settings.Secure.getString(context.getContentResolver(), Settings.Secure.LOCATION_PROVIDERS_ALLOWED); return !TextUtils.isEmpty(locationProviders); } } 

Answer 3

您可以使用此代码将用户引导至“设置”，以在其中启用GPS：

  locationManager = (LocationManager) context.getSystemService(Context.LOCATION_SERVICE); if( !locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER) ) { AlertDialog.Builder builder = new AlertDialog.Builder(context); builder.setTitle(R.string.gps_not_found_title); // GPS not found builder.setMessage(R.string.gps_not_found_message); // Want to enable? builder.setPositiveButton(R.string.yes, new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialogInterface, int i) { owner.startActivity(new Intent(android.provider.Settings.ACTION_LOCATION_SOURCE_SETTINGS)); } }); builder.setNegativeButton(R.string.no, null); builder.create().show(); return; } 

Answer 4

根据上面的答案，在API 23中，您需要添加“危险的”权限检查以及检查系统本身：

 public static boolean isLocationServicesAvailable(Context context) { int locationMode = 0; String locationProviders; boolean isAvailable = false; if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT){ try { locationMode = Settings.Secure.getInt(context.getContentResolver(), Settings.Secure.LOCATION_MODE); } catch (Settings.SettingNotFoundException e) { e.printStackTrace(); } isAvailable = (locationMode != Settings.Secure.LOCATION_MODE_OFF); } else { locationProviders = Settings.Secure.getString(context.getContentResolver(), Settings.Secure.LOCATION_PROVIDERS_ALLOWED); isAvailable = !TextUtils.isEmpty(locationProviders); } boolean coarsePermissionCheck = (ContextCompat.checkSelfPermission(context, Manifest.permission.ACCESS_COARSE_LOCATION) == PackageManager.PERMISSION_GRANTED); boolean finePermissionCheck = (ContextCompat.checkSelfPermission(context, Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED); return isAvailable && (coarsePermissionCheck || finePermissionCheck); } 

Answer 5

如果没有启用提供程序，则“被动”是返回的最佳提供程序。 请参阅https://stackoverflow.com/a/4519414/621690

  public boolean isLocationServiceEnabled() { LocationManager lm = (LocationManager) this.getSystemService(Context.LOCATION_SERVICE); String provider = lm.getBestProvider(new Criteria(), true); return (StringUtils.isNotBlank(provider) && !LocationManager.PASSIVE_PROVIDER.equals(provider)); } 

Answer 6

这个if子句很容易检查位置服务在我看来是否可用：

 LocationManager locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE); if(!locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER) && !locationManager.isProviderEnabled(LocationManager.NETWORK_PROVIDER)) { //All location services are disabled } 

Answer 7

我使用NETWORK_PROVIDER这种方式，但你可以添加和GPS 。

 LocationManager locationManager; 

在onCreate我放

  isLocationEnabled(); if(!isLocationEnabled()) { AlertDialog.Builder builder = new AlertDialog.Builder(MainActivity.this); builder.setTitle(R.string.network_not_enabled) .setMessage(R.string.open_location_settings) .setPositiveButton(R.string.yes, new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int id) { startActivity(new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS)); } }) .setNegativeButton(R.string.cancel, new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int id) { dialog.cancel(); } }); AlertDialog alert = builder.create(); alert.show(); } 

检查的方法

 protected boolean isLocationEnabled(){ String le = Context.LOCATION_SERVICE; locationManager = (LocationManager) getSystemService(le); if(!locationManager.isProviderEnabled(LocationManager.NETWORK_PROVIDER)){ return false; } else { return true; } } 

Answer 8

正如Peter McClennan指出的那样，Google拥有一个与新的融合位置提供商非常协调的API。 在Github的Google示例代码中，一个完全有效的示例您不需要编写用户对话框来要求他们更改设置，因为它是通过API自动完成的。

Answer 9

是的，你可以检查下面的代码是：

 public boolean isGPSEnabled(Context mContext) { LocationManager lm = (LocationManager) mContext.getSystemService(Context.LOCATION_SERVICE); return lm.isProviderEnabled(LocationManager.GPS_PROVIDER); } 

在清单文件中有权限：

 <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" /> 

Answer 10

要获取Android谷歌地图中当前的地理位置 ，您应该打开您的设备位置选项。要检查位置是否打开，您可以简单地从您的onCreate()方法调用此方法。

 private void checkGPSStatus() { LocationManager locationManager = null; boolean gps_enabled = false; boolean network_enabled = false; if ( locationManager == null ) { locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE); } try { gps_enabled = locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER); } catch (Exception ex){} try { network_enabled = locationManager.isProviderEnabled(LocationManager.NETWORK_PROVIDER); } catch (Exception ex){} if ( !gps_enabled && !network_enabled ){ AlertDialog.Builder dialog = new AlertDialog.Builder(MyActivity.this); dialog.setMessage("GPS not enabled"); dialog.setPositiveButton("Ok", new DialogInterface.OnClickListener() { @Override public void onClick(DialogInterface dialog, int which) { //this will navigate user to the device location settings screen Intent intent = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS); startActivity(intent); } }); AlertDialog alert = dialog.create(); alert.show(); } } 

Answer 11

如果启用了Location services ，这是一个非常有用的方法，返回“ true ”：

 public static boolean locationServicesEnabled(Context context) { LocationManager lm = (LocationManager) context.getSystemService(Context.LOCATION_SERVICE); boolean gps_enabled = false; boolean net_enabled = false; try { gps_enabled = lm.isProviderEnabled(LocationManager.GPS_PROVIDER); } catch (Exception ex) { Log.e(TAG,"Exception gps_enabled"); } try { net_enabled = lm.isProviderEnabled(LocationManager.NETWORK_PROVIDER); } catch (Exception ex) { Log.e(TAG,"Exception network_enabled"); } return gps_enabled || net_enabled; } 

Answer 12

您可以请求位置更新并一起显示对话框，例如GoogleMaps doas。 这里是代码：

 googleApiClient = new GoogleApiClient.Builder(getActivity()) .addApi(LocationServices.API) .addConnectionCallbacks(this) .addOnConnectionFailedListener(this).build(); googleApiClient.connect(); LocationRequest locationRequest = LocationRequest.create(); locationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY); locationRequest.setInterval(30 * 1000); locationRequest.setFastestInterval(5 * 1000); LocationSettingsRequest.Builder builder = new LocationSettingsRequest.Builder() .addLocationRequest(locationRequest); builder.setAlwaysShow(true); //this is the key ingredient PendingResult<LocationSettingsResult> result = LocationServices.SettingsApi.checkLocationSettings(googleApiClient, builder.build()); result.setResultCallback(new ResultCallback<LocationSettingsResult>() { @Override public void onResult(LocationSettingsResult result) { final Status status = result.getStatus(); final LocationSettingsStates state = result.getLocationSettingsStates(); switch (status.getStatusCode()) { case LocationSettingsStatusCodes.SUCCESS: // All location settings are satisfied. The client can initialize location // requests here. break; case LocationSettingsStatusCodes.RESOLUTION_REQUIRED: // Location settings are not satisfied. But could be fixed by showing the user // a dialog. try { // Show the dialog by calling startResolutionForResult(), // and check the result in onActivityResult(). status.startResolutionForResult(getActivity(), 1000); } catch (IntentSender.SendIntentException ignored) {} break; case LocationSettingsStatusCodes.SETTINGS_CHANGE_UNAVAILABLE: // Location settings are not satisfied. However, we have no way to fix the // settings so we won't show the dialog. break; } } }); } 

如果您需要更多信息，请检查LocationRequest类。

Answer 13

要检查networking提供商，只需要将传递给isProviderEnabled的string更改为LocationManager.NETWORK_PROVIDER，如果您检查GPS提供商和networking提供商的返回值 – false都表示没有位置服务

Answer 14

 private boolean isGpsEnabled() { LocationManager service = (LocationManager) getSystemService(LOCATION_SERVICE); return service.isProviderEnabled(LocationManager.GPS_PROVIDER)&&service.isProviderEnabled(LocationManager.NETWORK_PROVIDER); }