Android – 无法获取纬度/经度值来存储和传递变量
我试图将纬度/经度存储到变量x3和x4以传递Spot []数组但它返回0.我尝试在onConnected方法上打印它并且它工作正常。
我还尝试了其他方法在谷歌地图上添加标记，我将map.addMarker放在onConnected方法上，但我的应用程序关闭了。 如果你可以建议把addMarker放在哪里，请做。 谢谢。
GoogleMap map; private static Location mLastLocation; private static GoogleApiClient mGoogleApiClient; static double x3; static double x4; LatLng userloc; @Override public void onConnected(Bundle connectionHint) { mLastLocation = LocationServices.FusedLocationApi.getLastLocation( mGoogleApiClient); if (mLastLocation != null) { x3 = mLastLocation.getLatitude(); x4 = mLastLocation.getLongitude(); userloc = new LatLng(x3,x4); txtPlateno.setText(String.valueOf(x3+" - "+x4)); // PRINT TEST ONLY WITH CORRECT RESULT } } private static Spot[] SPOTS_ARRAY = new Spot[]{ new Spot("YOU ARE HERE", "DESC ", "", new LatLng(x3, x4)), // NOT SHOWN IN MAP AT ALL new Spot("Besabella Parking Lot", "Address: Sta Cruz Labogon, Mandaue City\n " + "Fee: \n " + "No. of available space: \n " + "Distance:" + x3 + "KM", "", new LatLng(10.351763, 123.953683)), // TESTING x3 ON DISTANCE WITH RESULT 0.0 }; 你可以在获得lat / long后调用add marker，也可以移动相机以供参考，你可以查看下面的代码
public class MapDialogFragment extends DialogFragment implements LibListner, OnClickListener, OnInfoWindowClickListener { private View dialog; private MarkerOptions markerOptions; private SupportMapFragment mMapFragment; private GoogleMap mMap; private TextView tvBackText, tvback; // private ArrayList getClickedTitle; private ArrayList newData; @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { // Utility.Log("onCreateView"); getDialog().getWindow().requestFeature(Window.FEATURE_NO_TITLE); // // getDialog().getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN, WindowManager.LayoutParams.FLAG_FULLSCREEN); getDialog().getWindow().setBackgroundDrawable(new ColorDrawable(Color.TRANSPARENT)); // getDialog().getWindow() // .getAttributes().windowAnimations = R.style.DialogAnimation; if (dialog != null) { ViewGroup parent = (ViewGroup) dialog.getParent(); if (parent != null) parent.removeView(dialog); } try { dialog = inflater.inflate(R.layout.dlg_map, container, false); } catch (Exception e) { /* map is already there, just return view as it is */ } return dialog; } @Override public void onStart() { super.onStart(); // Utility.Log("onStart"); } @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); // Utility.Log("onCreate"); FragmentManager fm = getChildFragmentManager(); mMapFragment = (SupportMapFragment) fm.findFragmentById(R.id.mapView); if (mMapFragment == null) { mMapFragment = SupportMapFragment.newInstance(); fm.beginTransaction().replace(R.id.mapView, mMapFragment).commit(); } } @Override public void onActivityCreated(Bundle arg0) { super.onActivityCreated(arg0); init(); loadMap(); initMap(); listner(); } private void loadMap() { String map = Utility.BASE_URL + "mall/location"; new GetLibResponse(MapDialogFragment.this, new LocationGeneralModel(), getActivity(), map, Utility.LOCATIONCOMMON, true, true); } @Override public void onResume() { super.onResume(); try { int chkGooglePlayServices = GooglePlayServicesUtil.isGooglePlayServicesAvailable(getActivity()); markerOptions = new MarkerOptions(); if (chkGooglePlayServices != ConnectionResult.SUCCESS) { GooglePlayServicesUtil.getErrorDialog(chkGooglePlayServices, getActivity(), 1122).show(); } else { mMap = mMapFragment.getMap(); mMap.setMapType(GoogleMap.MAP_TYPE_NORMAL); } mMap.setMyLocationEnabled(false); mMap.setOnInfoWindowClickListener(this); // if (isSearch) { // mMap.setOnMapClickListener(MapDialogFragment.this); // mMap.setOnMapLongClickListener(MapDialogFragment.this); // mMap.setOnMarkerDragListener(MapDialogFragment.this); // // if (latitude != null && longitude != null && latitude != "" && longitude != "") { // mMap.clear(); // markerOptions // .position( // new LatLng(Double.parseDouble(latitude), Double.parseDouble(longitude))); // mMap.addMarker(markerOptions); // mMap.animateCamera(CameraUpdateFactory.newLatLngZoom( // new LatLng(Double.parseDouble(latitude), Double.parseDouble(longitude)), // 15.0f)); // // } // } else { // mMap.clear(); // markerOptions // .position( // new LatLng(Double.parseDouble(flat), Double.parseDouble(flong))); // mMap.addMarker(markerOptions); // mMap.animateCamera(CameraUpdateFactory.newLatLngZoom( // new LatLng(Double.parseDouble(flat), Double.parseDouble(flong)), // 15.0f)); // } } catch (Exception e) { e.printStackTrace(); } } private void init() { tvback = (TextView) dialog.findViewById(R.id.frg_location_tvBack); tvback.setOnClickListener(this); tvBackText = (TextView) dialog.findViewById(R.id.frg_location_tvBackText); tvBackText.setOnClickListener(this); } private void listner() { } private void initMap() { } private MainFragmentActivity mainActivity() { return ((MainFragmentActivity) getActivity()); } @Override public void onResponseComplete(Object clsGson, int requestCode) { if (requestCode == Utility.LOCATIONCOMMON) { if (mainActivity() != null) { mainActivity().mLocationGeneralModel = (LocationGeneralModel) clsGson; if ((mainActivity().mLocationGeneralModel != null) && (mainActivity().mLocationGeneralModel.data != null) && (mainActivity().mLocationGeneralModel.data.size() != 0)) { ArrayList vLat = new ArrayList (); ArrayList vLong = new ArrayList (); ArrayList vName = new ArrayList (); ArrayList newData = new ArrayList(); for (int pin = 0; pin < mainActivity().mLocationGeneralModel.data.size(); pin++) { try { if (!mainActivity().mLocationGeneralModel.data.get(pin).vLat.equals("")) { // Log.d("TAG", mainActivity().mLocationGeneralModel.data.get(pin).vLat); vLat.add(Double.parseDouble(mainActivity().mLocationGeneralModel.data.get(pin).vLat)); vLong.add(Double.parseDouble(mainActivity().mLocationGeneralModel.data.get(pin).vLong)); vName.add((mainActivity().mLocationGeneralModel.data.get(pin).vName_en)); double vLatitude[] = new double[vLat.size()]; double vLongitude[] = new double[vLong.size()]; for (int getArray = 0; getArray < vLat.size(); getArray++) { vLatitude[getArray] = vLat.get(getArray); vLongitude[getArray] = vLong.get(getArray); newData.add(mainActivity().mLocationGeneralModel.data.get(pin)); } multipleMarker(vLatitude, vLongitude, vName, newData); } } catch (Exception e) { e.printStackTrace(); } } } } } } @Override public void onResponseError(String errorMessage, int requestCode) { } private void multipleMarker(double latitude[], double longitude[], ArrayList vName, ArrayList newData) { this.newData = newData; mMap.clear(); // LatLngBounds.Builder builder = new LatLngBounds.Builder(); // for (Marker marker : markers) { // builder.include(marker.getPosition()); // } // LatLngBounds bounds = builder.build(); // getClickedTitle = new ArrayList(); for (int i = 0; i < latitude.length; i++) { // Log.d("TAG", "Marker Add" + latitude[i] + " " + longitude[i]); MarkerOptions marker = new MarkerOptions().position(new LatLng(latitude[i], longitude[i])).title(vName.get(i)); mMap.addMarker(marker); mMap.moveCamera(CameraUpdateFactory.newLatLngZoom(new LatLng(latitude[i], longitude[i]), 5)); } // getClickedTitle = vName; } @Override public void onClick(View v) { switch (v.getId()) { case R.id.frg_location_tvBack: dismiss(); break; case R.id.frg_location_tvBackText: dismiss(); break; } } @Override public void onInfoWindowClick(Marker arg0) { for (int counter = 0; counter < newData.size(); counter++) { if (arg0.getTitle().equals(newData.get(counter).vName_en)) { Data data = newData.get(counter); MallPerticularsFragment mFragment = new MallPerticularsFragment(); Bundle bundle = new Bundle(); bundle.putString("mall_name", data.vName_en); bundle.putString("mall_locEn", data.vLocation); mFragment.setArguments(bundle); ((MainFragmentActivity) getActivity()).displayFragmentWithArg(mFragment); } } } }