LocationMapFragment.java

package com.headdetect.android.mocklocation;

import android.app.Activity;
import android.app.Fragment;
import android.location.Criteria;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.MapFragment;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.MarkerOptions;

import com.headdetect.android.mocklocation.Tasks.AddressLookupTask;

public class LocationMapFragment extends Fragment implements GoogleMap.OnMyLocationButtonClickListener, LocationListener, GoogleMap.OnMapClickListener{

    private static final String ARG_SECTION_NUMBER = "section_number";

    public static MarkerOptions currentMarker = null;

    private GoogleMap mMap;

    public LocationMapFragment() {
    }

    public static LocationMapFragment newInstance(int sectionNumber) {
        LocationMapFragment fragment = new LocationMapFragment();
        Bundle args = new Bundle();
        args.putInt(ARG_SECTION_NUMBER, sectionNumber);
        fragment.setArguments(args);
        return fragment;
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View rootView = inflater.inflate(R.layout.fragment_map, container, false);
        setUpMapIfNeeded();
        return rootView;
    }

    @Override
    public void onAttach(Activity activity) {
        super.onAttach(activity);
        ((MainActivity) activity).onSectionAttached(getArguments().getInt(ARG_SECTION_NUMBER));
    }



    private void setUpMapIfNeeded() {
        // Do a null check to confirm that we have not already instantiated the map.
        if (mMap == null) {
            // Try to obtain the map from the SupportMapFragment.
            MapFragment mapFragment = ((MapFragment) this.getFragmentManager().findFragmentById(R.id.map));
            mMap = mapFragment.getMap();
            // Check if we were successful in obtaining the map.
            if (mMap != null) {
                setUpMap();
            } else {
                Log.e("MockLocation", "Could not get map");
            }
        }
    }

    private void setUpMap() {
        mMap.setMyLocationEnabled(true);
        mMap.setOnMyLocationButtonClickListener(this);
        mMap.setOnMapClickListener(this);
        onMyLocationButtonClick();
    }

    @Override
    public boolean onMyLocationButtonClick() {


        LocationManager locationManager = (LocationManager) getActivity().getSystemService(FragmentActivity.LOCATION_SERVICE);

        Criteria criteria = new Criteria();

        String provider = locationManager.getBestProvider(criteria, true);
        Location location = locationManager.getLastKnownLocation(provider);

        if (location != null) {
            onLocationChanged(location);
        }

        locationManager.requestLocationUpdates(provider, 20000, 0, this);

        return true;
    }

    @Override
    public void onLocationChanged(Location location) {
        if(mMap.getCameraPosition().zoom > 10) return;

        double lat = location.getLatitude();
        double lng = location.getLongitude();

        LatLng latlng = new LatLng(lat, lng);
        mMap.moveCamera(CameraUpdateFactory.newLatLng(latlng));
        mMap.animateCamera(CameraUpdateFactory.zoomTo(1));


        onMapClick(latlng);
    }

    @Override
    public void onStatusChanged(String s, int i, Bundle bundle) {  }

    @Override
    public void onProviderEnabled(String s) { }

    @Override
    public void onProviderDisabled(String s) { }

    @Override
    public void onMapClick(LatLng latLng) {
        MarkerOptions markerOption = new MarkerOptions();
        markerOption.position(latLng);

        mMap.clear();
        mMap.animateCamera(CameraUpdateFactory.newLatLng(latLng));
        mMap.addMarker(markerOption);

        currentMarker = markerOption;

        new AddressLookupTask(this.getActivity(), mMap, markerOption).execute(latLng);

    }
}