Android รบกวนช่วยดู Code เกี่ยวกับ Android Google Map API V2 MySQL

package cpc.shopbedocafe;

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.HashMap;

import org.apache.http.HttpEntity;
import org.apache.http.HttpResponse;
import org.apache.http.StatusLine;
import org.apache.http.client.ClientProtocolException;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.DefaultHttpClient;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;

import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.GooglePlayServicesUtil;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.SupportMapFragment;
import com.google.android.gms.maps.GoogleMap.OnInfoWindowClickListener;
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 android.content.Context;
import android.content.Intent;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.AsyncTask;
import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentManager;
import android.util.Log;
import android.view.Menu;
import android.widget.Toast;

public class MapActivity extends FragmentActivity implements OnInfoWindowClickListener {

	final int RQS_GooglePlayServices = 1;
	private GoogleMap myMap;
	private LocationManager locationManager;
	private String userid;
	private String name, address, latitude, longitude;
	Double lat;
	Double lng;

	final ArrayList<HashMap<String, String>> MyArrList = new ArrayList<HashMap<String, String>>();
	HashMap<String, String> map;

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

		FragmentManager myFragmentManager = getSupportFragmentManager();
		SupportMapFragment mySupportMapFragment = (SupportMapFragment) myFragmentManager
				.findFragmentById(R.id.map_canvas);
		myMap = mySupportMapFragment.getMap();
		
		myMap.setOnInfoWindowClickListener(this);
		myMap.setMyLocationEnabled(true);

		LocationListener locationListener = new LocationListener() {

			public void onLocationChanged(Location location) {
				LatLng latlng = new LatLng(location.getLatitude(),
						location.getLongitude());
				myMap.animateCamera(CameraUpdateFactory.newLatLngZoom((latlng),
						10));
			}

			public void onProviderDisabled(String provider) {
				// TODO Auto-generated method stub

			}

			public void onProviderEnabled(String provider) {
				// TODO Auto-generated method stub

			}

			public void onStatusChanged(String provider, int status,
					Bundle extras) {
				// TODO Auto-generated method stub

			}
		};

		locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
		locationManager.requestLocationUpdates(
				LocationManager.NETWORK_PROVIDER, 20, 20, locationListener);

		showMarker();
	}

	@Override
	protected void onResume() {
		super.onResume();

		int resultCode = GooglePlayServicesUtil
				.isGooglePlayServicesAvailable(getApplicationContext());

		if (resultCode == ConnectionResult.SUCCESS) {
			Toast.makeText(getApplicationContext(),
					"GooglePlayServices is Available", Toast.LENGTH_LONG)
					.show();
		} else {
			GooglePlayServicesUtil.getErrorDialog(resultCode, this,
					RQS_GooglePlayServices);
		}
	}
	
	@Override
	public void onInfoWindowClick(Marker marker) {
		
		marker.hideInfoWindow();
		Intent it = new Intent(MapActivity.this,ShopProfileActivity.class);
		it.putExtra("UserID", userid);
		startActivity(it);
	}

	public void addMarker() {
		
	}

	@Override
	public boolean onCreateOptionsMenu(Menu menu) {
		// Inflate the menu; this adds items to the action bar if it is present.
		getMenuInflater().inflate(R.menu.activity_map, menu);
		return true;
	}

	public void showMarker() {
		new LoadContentFromServer().execute();
	}

	class LoadContentFromServer extends AsyncTask<String, Integer, String> {

		@Override
		protected String doInBackground(String... params) {

			String url = "http://s.creation-it.com/php/showallshop.php";
			return getJSONUrl(url);
		}

		public String getJSONUrl(String url) {
			StringBuilder str = new StringBuilder();
			HttpClient client = new DefaultHttpClient();
			HttpGet httpGet = new HttpGet(url);
			try {
				HttpResponse response = client.execute(httpGet);
				StatusLine statusLine = response.getStatusLine();
				int statusCode = statusLine.getStatusCode();
				if (statusCode == 200) {
					HttpEntity entity = response.getEntity();
					InputStream content = entity.getContent();
					BufferedReader reader = new BufferedReader(
							new InputStreamReader(content));
					String line;
					while ((line = reader.readLine()) != null) {
						str.append(line);
					}
				} else {
					Log.e("Log", "Failed to download file..");
				}
			} catch (ClientProtocolException e) {
				e.printStackTrace();
			} catch (IOException e) {
				e.printStackTrace();
			}
			return str.toString();
		}

		@Override
		protected void onPostExecute(String result) {
			try {
				JSONArray data = new JSONArray(result);

				for (int i = 0; i < data.length(); i++) {
					JSONObject c = data.getJSONObject(i);

					map = new HashMap<String, String>();
					map.put("UserID", c.getString("UserID"));
					map.put("Name", c.getString("Name"));
					map.put("Address", c.getString("Address"));
					map.put("Latitude", c.getString("Latitude"));
					map.put("Longitude", c.getString("Longitude"));
					map.put("Picture", c.getString("Picture"));
					MyArrList.add(map);

					userid = map.get("UserID");
					name = map.get("Name");
					address = map.get("Address");
					latitude = map.get("Latitude");
					longitude = map.get("Longitude");
					lat = Double.parseDouble(latitude);
					lng = Double.parseDouble(longitude);

					try {
						myMap.addMarker(new MarkerOptions()
							.position(new LatLng(lat, lng))
							.icon(BitmapDescriptorFactory
							.defaultMarker(BitmapDescriptorFactory.HUE_ORANGE))
							.title(name).snippet(address));
					} catch (Exception e) {
						e.printStackTrace();
					}
				}
			} catch (JSONException e) {
				e.printStackTrace();
			}
		}
	}
}