How to set listview clickable in order to open a map?

[Thomas Lance]

Hi, guys and girls, Thomas again. I have one more problem with my app. It includes Google maps.Question is similar to my previous question with Youtube. Also don't know how to open a map with a click on listview item. I have a list of Tours in a Fragment, I retrieved the list from Firebase and all, I even add coordinates of each tour on Firebase, but probably something is missing in my code. Can someone help me with this problem. Thank you all in advance. This is my code:

This is MapActivity:(Most of the code are just silly permissions)

public class MapActivity extends AppCompatActivity implements OnMapReadyCallback, LocationSource.OnLocationChangedListener {


    private static final int REQUEST_LOCATION_PERMISSION = 10;
    private static final int MIN_TIME = 1000;
    private static final int MIN_DISTANCE = 10;
    private GoogleMap.OnMapClickListener mCustomOnMapClickListener;

    private GoogleMap mGoogleMap;
    private MapFragment mMapFragment;
    LocationListener mLocationListener;
    LocationManager mLocationManager;
    String mLocationProvider;
    boolean mTrackingLocation = false;
    private Criteria mCriteria;


    private LocationSource.OnLocationChangedListener mListener;
    @BindView(R.id.lvTours)
    ListView lvTours;


    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.tours_coord);
        this.initialize();

    }

    @OnItemClick(R.id.lvTours)
    public void onItemClick(){

        if (!this.mTrackingLocation) {
            if (this.hasLocationPermission()) {
                startTrackingLocation();
            } else {
                this.requestPermission();
            }
        } else {
            this.stopTrackingLocation();
        }

    }


    public void initialize() {
        this.mMapFragment = (MapFragment) getFragmentManager().findFragmentById(R.id.fGoogleMap);
        this.mMapFragment.getMapAsync(this);
        this.mCriteria = new Criteria();
        this.mCriteria.setAccuracy(Criteria.ACCURACY_FINE);
        this.mLocationManager = (LocationManager) this.getSystemService(LOCATION_SERVICE);
        this.mLocationListener = new SimpleLocationListener();
        this.mCustomOnMapClickListener = new GoogleMap.OnMapClickListener() {
            @Override
            public void onMapClick(LatLng latLng) {
                MarkerOptions newMarkerOptions = new MarkerOptions();
                newMarkerOptions.icon(BitmapDescriptorFactory.fromResource(R.mipmap.tour));
                newMarkerOptions.title("Tour");
                newMarkerOptions.snippet("It' was here!");
                newMarkerOptions.position(latLng);
                mGoogleMap.addMarker(newMarkerOptions);


            }
        };
    }

    @Override
    public void onMapReady(GoogleMap googleMap) {
        this.mGoogleMap = googleMap;
        UiSettings uiSettings = this.mGoogleMap.getUiSettings();
        uiSettings.setZoomControlsEnabled(true);
        uiSettings.setMyLocationButtonEnabled(true);
        uiSettings.setZoomGesturesEnabled(true);
        this.mGoogleMap.setOnMapClickListener(this.mCustomOnMapClickListener);
        // goToLocation(33.835293 , -117.914505);
    }

    private void startTrackingLocation() {
        this.mLocationProvider = this.mLocationManager.getBestProvider(this.mCriteria, true);
        this.mLocationManager.requestLocationUpdates(
                this.mLocationProvider, MIN_TIME, MIN_DISTANCE, this.mLocationListener);
        this.mTrackingLocation = true;
    }

    private void stopTrackingLocation() {
        this.mLocationManager.removeUpdates(this.mLocationListener);
        this.mTrackingLocation = false;
    }

    private boolean hasLocationPermission() {

        String LocationPermission = android.Manifest.permission.ACCESS_FINE_LOCATION;
        int status = ContextCompat.checkSelfPermission(this, LocationPermission);
        if (status == PackageManager.PERMISSION_GRANTED) {

            if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) !=
                    PackageManager.PERMISSION_GRANTED) {

                return true;
            }

            this.mGoogleMap.setMyLocationEnabled(true);
        }

        return true;


    }

    private void requestPermission() {
        String[] permission = new String[]{Manifest.permission.ACCESS_FINE_LOCATION};
        ActivityCompat.requestPermissions(MapActivity.this, permission, REQUEST_LOCATION_PERMISSION);

    }


    private class SimpleLocationListener implements LocationListener {

        @Override
        public void onLocationChanged(Location location) {
            updateLocationDisplay(location);

        }
        @Override
        public void onStatusChanged(String provider, int status, Bundle extras) {

        }

        @Override
        public void onProviderEnabled(String provider) {

        }

        @Override
        public void onProviderDisabled(String provider) {

        }
    }


    @Override
    public void onLocationChanged(Location location) {

        Intent i = getIntent();
        long lat = i.getLongExtra("lat", 0);
        long lng = i.getLongExtra("lng", 0);



        if (mListener != null) {
            mListener.onLocationChanged(location);

            //Move the camera to the user's location and zoom in!
            mGoogleMap.animateCamera(CameraUpdateFactory.newLatLngZoom(new LatLng(location.getLatitude(), location.getLongitude()), 12.0f));
        }


    }



    /* public void goToLocation(double lat, double lng){

         LatLng latLng = new LatLng(lat, lng);


         CameraPosition position = CameraPosition.builder()
                 .target(latLng)
                 .zoom(16f)
                 .bearing(0.0f)
                 .tilt(0.0f)
                 .build();

         mGoogleMap.animateCamera(CameraUpdateFactory.newCameraPosition(position),null);


     }
 */


    private void updateLocationDisplay(Location location) {
        StringBuilder stringBuilderlat = new StringBuilder();
        StringBuilder stringBuilderlon = new StringBuilder();
        stringBuilderlat.append("Lat: ").append(location.getLatitude()).append("\n");
        stringBuilderlon.append("Lon: ").append(location.getLongitude());
    }


    @Override
    public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
        switch (requestCode) {
            case REQUEST_LOCATION_PERMISSION:
                if (grantResults.length > 0) {
                    if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
                        Log.d("Permission", "Permission granted. User pressed allow.");
                        startTrackingLocation();
                    } else {
                        Log.d("Permission", "Permission not granted. User pressed deny.");
                        askForPermission();
                    }
                }
                break;
        }
    }

    private void askForPermission() {
        boolean shouldExplain = ActivityCompat.shouldShowRequestPermissionRationale(
                MapActivity.this, Manifest.permission.ACCESS_FINE_LOCATION);
        if (shouldExplain) {
            Log.d("Permission", "Permission should be explained, - don't show again not clicked.");
            this.displayDialog();
        } else {
            Log.d("Permission", "Permission not granted. User pressed deny and don't show again.");
        }
    }

    private void displayDialog() {
        AlertDialog.Builder dialogBuilder = new AlertDialog.Builder(this);
        dialogBuilder.setTitle("Location permission")
                .setMessage("We display your location and need your permission")
                .setNegativeButton("Dismiss", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        Log.d("Permission", "User declined and won't be asked again.");
                        dialog.cancel();
                    }
                })
                .setPositiveButton("Grant", new DialogInterface.OnClickListener() {
                    @Override
                    public void onClick(DialogInterface dialog, int which) {
                        Log.d("Permission", "Permission requested because of the explanati-on.");
                        requestPermission();
                        dialog.cancel();
                    }
                })
                .show();
    }


}

This is ToursFragment:(The main idea is when user clicks on listview item to open a google map with that location, nothing more)

public class ToursFragment extends Fragment implements ValueEventListener {

    private static final String URL = "https://www.google.com/";
    @BindView(R.id.lvTours) ListView lvTours;

    public static final String LOG_TAG = "FB_database_tag";
    public static final String TITLE = "Tours";
    public static final String TOURS = "Tours";
    public static final String DB_NAME = "MetalApp";
    private ToursAdapter adapter;
    private Unbinder unbinder;
    double latitude;
    double longitude;




    private DatabaseReference mDatabaseReference;


    @Override
    public void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
    }

    public ToursFragment() {}



    @Nullable
    @Override
    public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.tours_fragment, container, false);
        unbinder=ButterKnife.bind(this, view);
        this.mDatabaseReference = FirebaseDatabase.getInstance().getReference(DB_NAME).child(TOURS);
        this.mDatabaseReference.addValueEventListener(this);


        return view;

    }

    @Override
    public void onDestroyView() {
        super.onDestroyView();
        if(this.mDatabaseReference != null){
            this.mDatabaseReference.removeEventListener(this);
        }
    }

    @Override
    public void onDataChange(DataSnapshot s) {


        Log.d("FB_dataChange", s.getChildrenCount() + "");
        Log.d("FB_dataChange", s.getKey() + "");

        List<Tours> toursFireList = new ArrayList<>();
        Object o = s.getValue();
        toursFireList = mapTours((HashMap<String, HashMap>)o);
        Collections.sort(toursFireList, new Comparator<Tours>() {
            @Override
            public int compare(Tours tours, Tours t1) {
                return tours.getId().compareTo(t1.getId());
            }
        });

        adapter = new ToursAdapter(toursFireList);
        this.lvTours.setAdapter(adapter);
    }

    @Override
    public void onCancelled(DatabaseError databaseError) {

        Log.e(LOG_TAG, databaseError.getMessage());


    }

    private List<Tours> mapTours (HashMap<String, HashMap> map)
    {
        List<Tours> re = new ArrayList<>();
        Set<String> keys = map.keySet();
        for (String key : keys) {
            HashMap<String, Object> to = map.get(key);
            String id = (String) to.get("id");
            String title = (String) to.get("title");
            String year = (String) to.get("year");
            String coord = (String) to.get("coord");
            Tours t = new Tours(id, title, year, coord);
            re.add(t);
        }

        return re;
    }

    @OnItemClick(R.id.lvTours)
    public void onItemClick(int position)
    {

         Intent intent = new Intent(getContext(), MapActivity.class);
         intent.putExtra("latitude", latitude);
         intent.putExtra("longitude", longitude);
         startActivity(intent);
    }
}

[Norm Radder]

similar to my previous question with Youtube.

How did you solve that problem?  It seems to be a very similar problem.

[Thomas Lance]

That's the thing. I didn't solve it, if I were, I wouldn't ask similar question.

[Norm Radder]

There are lots of code examples online when searching for: clickable listview android tutorial
For example:  https://stackoverflow.com/questions/13281197/android-how-to-create-clickable-listview

Where does your code set the listener by calling the setOnItemClickListener method?

[Thomas Lance]

At the end of the code..onItemClick method...but I did something wrong cause it's not working , that's why I'm asking for help.

[Norm Radder]

Sorry, I do not see where the code is calling the setOnItemClickListener method.  When I do a search for "setOnItemClickListener" I do not see it.

What line of code calls that method?

[Thomas Lance]

I didn't used OnItemClickListener...cause I'm working with Butterknife, which you can see at the of the code. But, by all means, help me in anyway you can..If you want to use that method, that's ok...as long as it works. Thanks.

[Norm Radder]

Sorry, I know nothing about  Butterknife.  

Try using the setListener method as shown in the link I posted.

[Thomas Lance]

Ok, I will. Thank you.