try this code

public void statusCheck() { final LocationManager manager = (LocationManager) getSystemService(Context.LOCATION_SERVICE); if (!manager.isProviderEnabled(LocationManager.GPS_PROVIDER)) { buildAlertMessageNoGps(); } } private void buildAlertMessageNoGps() { final AlertDialog.Builder builder = new AlertDialog.Builder(this); builder.setMessage("Your GPS seems to be disabled, do you want to enable it?") .setCancelable(false) .setPositiveButton("Yes", new DialogInterface.OnClickListener() { public void onClick(final DialogInterface dialog, final int id) { startActivity(new Intent(android.provider.Settings.ACTION_LOCATION_SOURCE_SETTINGS)); } }) .setNegativeButton("No", new DialogInterface.OnClickListener() { public void onClick(final DialogInterface dialog, final int id) { dialog.cancel(); } }); final AlertDialog alert = builder.create(); alert.show(); }

Use below code to check. If it is disabled, dialog box will be generated

public void statusCheck() { final LocationManager manager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
if (!manager.isProviderEnabled(LocationManager.GPS_PROVIDER)) { buildAlertMessageNoGps();
} }
private void buildAlertMessageNoGps() { final AlertDialog.Builder builder = new AlertDialog.Builder(this); builder.setMessage("Your GPS seems to be disabled, do you want to enable it?") .setCancelable(false) .setPositiveButton("Yes", new DialogInterface.OnClickListener() { public void onClick(final DialogInterface dialog, final int id) { startActivity(new Intent(android.provider.Settings.ACTION_LOCATION_SOURCE_SETTINGS)); } }) .setNegativeButton("No", new DialogInterface.OnClickListener() { public void onClick(final DialogInterface dialog, final int id) { dialog.cancel(); } }); final AlertDialog alert = builder.create(); alert.show(); }