com.jcertif.android.fragments.MapEventFragment.java Source code

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Here is the source code for com.jcertif.android.fragments.MapEventFragment.java

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/*
 * Copyright 2013 JCertifLab.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.jcertif.android.fragments;

import java.io.IOException;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;

import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

import com.google.android.gms.common.GooglePlayServicesNotAvailableException;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.MapView;
import com.google.android.gms.maps.MapsInitializer;
import com.google.android.gms.maps.model.BitmapDescriptorFactory;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.Marker;
import com.google.android.gms.maps.model.MarkerOptions;
import com.jcertif.android.R;

public class MapEventFragment extends RESTResponderFragment {

    MapView mapv;
    GoogleMap gmap;
    Marker marker;
    LatLng initPosition;
    private static final String geoURL = "";
    private static final String LOG_TAG = MapEventFragment.class.getName();

    public MapEventFragment() {
        super();
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        getSherlockActivity().getSupportActionBar()
                .setNavigationMode(com.actionbarsherlock.app.ActionBar.NAVIGATION_MODE_STANDARD);
        setRetainInstance(true);
        View rootView = inflater.inflate(R.layout.fragment_map, container, false);

        getActivity().setTitle(R.string.app_name);
        setHasOptionsMenu(true);

        mapv = (MapView) rootView.findViewById(R.id.mapview);
        mapv.onCreate(savedInstanceState);

        onMapReady();

        return rootView;
    }

    public void onMapReady() {

        initPosition = new LatLng(-4.257399, 15.283935);

        gmap = mapv.getMap();
        gmap.setMapType(GoogleMap.MAP_TYPE_NORMAL);
        gmap.getUiSettings().setCompassEnabled(true);
        try {
            MapsInitializer.initialize(this.getSherlockActivity());
        } catch (GooglePlayServicesNotAvailableException e) {
            e.printStackTrace();
        }
        //Move the camera instantly to initial position with a zoom of 17.
        gmap.moveCamera(CameraUpdateFactory.newLatLngZoom(initPosition, 30));
        // Zoom in, animating the camera.

        gmap.animateCamera(CameraUpdateFactory.zoomTo(30), 200, null);
        //Initialize the marker
        marker = gmap.addMarker(new MarkerOptions().title("Brazzaville").visible(true).position(initPosition)
                .icon(BitmapDescriptorFactory.fromResource(R.drawable.ic_action_location)));

        gmap.animateCamera(CameraUpdateFactory.zoomTo(12), 2000, null);

        setUpMap();

    }

    private void setUpMap() {
        // Retrieve data from the web service
        // In a worker thread since it's a network operation.
        try {
            retrieveAndAddPOI();
        } catch (IOException e) {
            Log.e(LOG_TAG, "Cannot retrieve poi", e);
            return;
        }
    }

    protected void retrieveAndAddPOI() throws IOException {
        HttpURLConnection conn = null;
        final StringBuilder json = new StringBuilder();
        try {
            // Connect to the url
            /*URL url = new URL(geo_URL);
            conn = (HttpURLConnection) url.openConnection();*/
            /*InputStreamReader in = new InputStreamReader(conn.getInputStream());*/
            InputStreamReader in = new InputStreamReader(
                    getSherlockActivity().getResources().openRawResource(R.raw.cgeventgeodata));
            // Read the JSON data into the StringBuilder
            int read;
            char[] buff = new char[1024];
            while ((read = in.read(buff)) != -1) {
                json.append(buff, 0, read);
            }
        } catch (IOException e) {
            Log.e(LOG_TAG, "Error connecting to service", e);
            throw new IOException("Error connecting to service", e);
        } finally {
            if (conn != null) {
                conn.disconnect();
            }
        }

        try {
            createMarkersFromJson(json.toString());
        } catch (JSONException e) {
            Log.e(LOG_TAG, "Error processing JSON", e);
        }
    }

    void createMarkersFromJson(String json) throws JSONException {
        // De-serialize the JSON string into an array of city objects
        JSONArray jsonArray = new JSONArray(json);
        for (int i = 0; i < jsonArray.length(); i++) {
            // Create a marker for each city in the JSON data.
            JSONObject jsonObj = jsonArray.getJSONObject(i);
            gmap.addMarker(new MarkerOptions().title(jsonObj.getString("name"))
                    /*.snippet(Integer.toString(jsonObj.getInt("population")))*/
                    .position(new LatLng(jsonObj.getJSONArray("latlng").getDouble(0),
                            jsonObj.getJSONArray("latlng").getDouble(1)))
                    .visible(true).icon(BitmapDescriptorFactory.fromResource(R.drawable.ic_action_location)));
        }
    }

    @Override
    public void onDestroy() {
        super.onDestroy();
        mapv.onDestroy();
    }

    @Override
    public void onLowMemory() {
        super.onLowMemory();
        mapv.onLowMemory();
    }

    @Override
    public void onResume() {
        mapv.onResume();
        super.onResume();
    }

    @Override
    public void onRESTResult(int code, Bundle result) {
        // TODO Auto-generated method stub

    }

}