Android设备GPS开/关编程

我正在使用以下代码开启/closuresGPS。

//Enable GPS Intent intent = new Intent("android.location.GPS_ENABLED_CHANGE"); intent.putExtra("enabled", true); context.sendBroadcast(intent); //Disable GPS Intent intent = new Intent("android.location.GPS_ENABLED_CHANGE"); intent.putExtra("enabled", false); context.sendBroadcast(intent); 

以编程方式，我需要在Android设备上打开/closuresGPS。 我正在使用上面的代码。 但它不适用于所有设备。 请帮帮我。 提前致谢。

Answer 1

从我个人的经验来看，我正在回答这个问题，

• 您的问题中显示的黑客代码已停止从Android版本4.4工作。 您将从Kitkat版本java.lang.SecurityException: Permission Denial: not allowed to send broadcast android.location.GPS_ENABLED_CHANGE开始引发此exceptionjava.lang.SecurityException: Permission Denial: not allowed to send broadcast android.location.GPS_ENABLED_CHANGE

• 第一个答案的代码将不再工作，它只在通知栏中显示animationGPS图标。

• 为了安全的目的，Google开发者已经阻止了以前工作正常的两种方法。

• 因此，结论是，您不能以编程方式启动或closuresGPS。

Answer 2

此代码适用于Rooted Phone

 public class MainActivity extends AppCompatActivity { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); String[] cmds = {"cd /system/bin" ,"settings put secure location_providers_allowed +gps"}; try { Process p = Runtime.getRuntime().exec("su"); DataOutputStream os = new DataOutputStream(p.getOutputStream()); for (String tmpCmd : cmds) { os.writeBytes(tmpCmd + "\n"); } os.writeBytes("exit\n"); os.flush(); } catch (IOException e){ e.printStackTrace(); } } } 

Answer 3

使用此function打开GPS，然后反转使GPSclosures

 Intent intent = new Intent("android.location.GPS_ENABLED_CHANGE"); intent.putExtra("enabled", true); this.ctx.sendBroadcast(intent); String provider = Settings.Secure.getString(ctx.getContentResolver(), Settings.Secure.LOCATION_PROVIDERS_ALLOWED); if(!provider.contains("gps")){ //if gps is disabled final Intent poke = new Intent(); poke.setClassName("com.android.settings", "com.android.settings.widget.SettingsAppWidgetProvider"); poke.addCategory(Intent.CATEGORY_ALTERNATIVE); poke.setData(Uri.parse("3")); this.ctx.sendBroadcast(poke); } 

Answer 4

试试这个代码：

 /** Method to turn on GPS **/ public void turnGPSOn(){ try { String provider = Settings.Secure.getString(getContentResolver(), Settings.Secure.LOCATION_PROVIDERS_ALLOWED); if(!provider.contains("gps")){ //if gps is disabled final Intent poke = new Intent(); poke.setClassName("com.android.settings", "com.android.settings.widget.SettingsAppWidgetProvider"); poke.addCategory(Intent.CATEGORY_ALTERNATIVE); poke.setData(Uri.parse("3")); sendBroadcast(poke); } } catch (Exception e) { } } // Method to turn off the GPS public void turnGPSOff(){ String provider = Settings.Secure.getString(getContentResolver(), Settings.Secure.LOCATION_PROVIDERS_ALLOWED); if(provider.contains("gps")){ //if gps is enabled final Intent poke = new Intent(); poke.setClassName("com.android.settings", "com.android.settings.widget.SettingsAppWidgetProvider"); poke.addCategory(Intent.CATEGORY_ALTERNATIVE); poke.setData(Uri.parse("3")); sendBroadcast(poke); } } // turning off the GPS if its in on state. to avoid the battery drain. @Override protected void onDestroy() { // TODO Auto-generated method stub super.onDestroy(); turnGPSOff();`enter code here` } /** Also add this on your manifest: <uses-permission android:name="android.permission.CHANGE_NETWORK_STATE"/> 

更新：

现在，我们可以使用默认的启用位置对话框（如Google地图）从我们的应用程序开启/closuresGPS。

文档可以在这里find：

Android位置对话框

示例代码：

 if (googleApiClient == null) { 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 e) { // Ignore the error. } 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; } } }); } 

Answer 5

我会build议你使用Android kitkat 4.4.x的以下代码

  public class GPSService extends Service implements LocationListener { // saving the context for later use private final Context mContext; // if GPS is enabled boolean isGPSEnabled = false; // if Netw`enter code here`ork is enabled boolean isNetworkEnabled = false; // if Location co-ordinates are available using GPS or Network public boolean isLocationAvailable = false; // Location and co-ordinates coordinates Location mLocation; double mLatitude; double mLongitude; // Minimum time fluctuation for next update (in milliseconds) private static final long TIME = 30000; // Minimum distance fluctuation for next update (in meters) private static final long DISTANCE = 20; // Declaring a Location Manager protected LocationManager mLocationManager; public GPSService(Context context) { this.mContext = context; mLocationManager = (LocationManager) mContext .getSystemService(LOCATION_SERVICE); } /** * Returs the Location * * @return Location or null if no location is found */ public Location getLocation() { try { // Getting GPS status isGPSEnabled = mLocationManager .isProviderEnabled(LocationManager.GPS_PROVIDER); // If GPS enabled, get latitude/longitude using GPS Services if (isGPSEnabled) { mLocationManager.requestLocationUpdates( LocationManager.GPS_PROVIDER, TIME, DISTANCE, this); if (mLocationManager != null) { mLocation = mLocationManager .getLastKnownLocation(LocationManager.GPS_PROVIDER); if (mLocation != null) { mLatitude = mLocation.getLatitude(); mLongitude = mLocation.getLongitude(); isLocationAvailable = true; // setting a flag that // location is available return mLocation; } } } // If we are reaching this part, it means GPS was not able to fetch // any location // Getting network status isNetworkEnabled = mLocationManager .isProviderEnabled(LocationManager.NETWORK_PROVIDER); if (isNetworkEnabled) { mLocationManager.requestLocationUpdates( LocationManager.NETWORK_PROVIDER, TIME, DISTANCE, this); if (mLocationManager != null) { mLocation = mLocationManager .getLastKnownLocation(LocationManager.NETWORK_PROVIDER); if (mLocation != null) { mLatitude = mLocation.getLatitude(); mLongitude = mLocation.getLongitude(); isLocationAvailable = true; // setting a flag that // location is available return mLocation; } } } // If reaching here means, we were not able to get location neither // from GPS not Network, if (!isGPSEnabled) { // so asking user to open GPS askUserToOpenGPS(); } } catch (Exception e) { e.printStackTrace(); } // if reaching here means, location was not available, so setting the // flag as false isLocationAvailable = false; return null; } /** * Gives you complete address of the location * * @return complete address in String */ public String getLocationAddress() { if (isLocationAvailable) { Geocoder geocoder = new Geocoder(mContext, Locale.getDefault()); // Get the current location from the input parameter list // Create a list to contain the result address List<Address> addresses = null; try { /* * Return 1 address. */ addresses = geocoder.getFromLocation(mLatitude, mLongitude, 1); } catch (IOException e1) { e1.printStackTrace(); return ("IO Exception trying to get address:" + e1); } catch (IllegalArgumentException e2) { // Error message to post in the log String errorString = "Illegal arguments " + Double.toString(mLatitude) + " , " + Double.toString(mLongitude) + " passed to address service"; e2.printStackTrace(); return errorString; } // If the reverse geocode returned an address if (addresses != null && addresses.size() > 0) { // Get the first address Address address = addresses.get(0); /* * Format the first line of address (if available), city, and * country name. */ String addressText = String.format( "%s, %s, %s", // If there's a street address, add it address.getMaxAddressLineIndex() > 0 ? address .getAddressLine(0) : "", // Locality is usually a city address.getLocality(), // The country of the address address.getCountryName()); // Return the text return addressText; } else { return "No address found by the service: Note to the developers, If no address is found by google itself, there is nothing you can do about it."; } } else { return "Location Not available"; } } /** * get latitude * * @return latitude in double */ public double getLatitude() { if (mLocation != null) { mLatitude = mLocation.getLatitude(); } return mLatitude; } /** * get longitude * * @return longitude in double */ public double getLongitude() { if (mLocation != null) { mLongitude = mLocation.getLongitude(); } return mLongitude; } /** * close GPS to save battery */ public void closeGPS() { if (mLocationManager != null) { mLocationManager.removeUpdates(GPSService.this); } } /** * show settings to open GPS */ public void askUserToOpenGPS() { AlertDialog.Builder mAlertDialog = new AlertDialog.Builder(mContext); // Setting Dialog Title mAlertDialog.setTitle("Location not available, Open GPS?") .setMessage("Activate GPS to use use location services?") .setPositiveButton("Open Settings", new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int which) { Intent intent = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS); mContext.startActivity(intent); } }) .setNegativeButton("Cancel",new DialogInterface.OnClickListener() { public void onClick(DialogInterface dialog, int which) { dialog.cancel(); } }).show(); } /** * Updating the location when location changes */ @Override public void onLocationChanged(Location location) { mLatitude = location.getLatitude(); mLongitude = location.getLongitude(); } @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; }} 

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  public class MainActivity extends ActionBarActivity { @Override public class MainActivity extends ActionBarActivity {protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); if (savedInstanceState == null) { getSupportFragmentManager().beginTransaction() .add(R.id.container, new PlaceholderFragment()).commit(); } } @Override public boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.main, menu); return true; } @Override public boolean onOptionsItemSelected(MenuItem item) { // Handle action bar item clicks here. The action bar will // automatically handle clicks on the Home/Up button, so long // as you specify a parent activity in AndroidManifest.xml. int id = item.getItemId(); if (id == R.id.action_settings) { return true; } return super.onOptionsItemSelected(item); } /** * A placeholder fragment containing a simple view. */ public static class PlaceholderFragment extends Fragment { public PlaceholderFragment() { } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View rootView = inflater.inflate(R.layout.fragment_main, container, false); final TextView tvLocation = (TextView)rootView.findViewById(R.id.tvLocation); final TextView tvAddress = (TextView)rootView.findViewById(R.id.tvAddress); Button btnGetLocation = (Button)rootView.findViewById(R.id.btnGetLocation); btnGetLocation.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { String address = ""; GPSService mGPSService = new GPSService(getActivity()); mGPSService.getLocation(); if (mGPSService.isLocationAvailable == false) { // Here you can ask the user to try again, using return; for that Toast.makeText(getActivity(), "Your location is not available, please try again.", Toast.LENGTH_SHORT).show(); return; // Or you can continue without getting the location, remove the return; above and uncomment the line given below // address = "Location not available"; } else { // Getting location co-ordinates double latitude = mGPSService.getLatitude(); double longitude = mGPSService.getLongitude(); Toast.makeText(getActivity(), "Latitude:" + latitude + " | Longitude: " + longitude, Toast.LENGTH_LONG).show(); address = mGPSService.getLocationAddress(); tvLocation.setText("Latitude: " + latitude + " \nLongitude: " + longitude); tvAddress.setText("Address: " + address); } Toast.makeText(getActivity(), "Your address is: " + address, Toast.LENGTH_SHORT).show(); // make sure you close the gps after using it. Save user's battery power mGPSService.closeGPS(); } }); return rootView; } }}