MainActivity.java Wisata

package com.training.android.wisata.activity;

import android.app.ProgressDialog;
import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ListView;
import android.widget.Toast;

import com.android.volley.Request;
import com.android.volley.Response;
import com.android.volley.VolleyError;
import com.android.volley.VolleyLog;
import com.training.android.wisata.R;
import com.training.android.wisata.adapter.CustomListAdapter;
import com.training.android.wisata.app.AppController;
import com.training.android.wisata.entity.LocationData;
import com.training.android.wisata.entity.User;
import com.training.android.wisata.utility.CustomRequest;
import com.training.android.wisata.utility.Utilities;

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

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;

public class MainActivity extends AppCompatActivity {

    User user;
    Utilities util = new Utilities();
    String url = util.getUrl("location.php");

    public static final String TAG = MainActivity.class.getSimpleName();

    ProgressDialog progressDialog;

    private List<LocationData> locationList = new ArrayList<LocationData>();
    private ListView lvLocation;
    private CustomListAdapter adapter;

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

        lvLocation = (ListView) findViewById(R.id.lvLocation);
        adapter = new CustomListAdapter(this, locationList);
        lvLocation.setAdapter(adapter);

        lvLocation.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                String data = locationList.get(position).getLocationName();
                Toast.makeText(getApplicationContext(), data, Toast.LENGTH_SHORT).show();
            }
        });

        user = new User();
        if (!user.isLogin(getApplicationContext())) {
            startActivity(new Intent(getApplicationContext(), Login.class));
            finish();
        } else {
            getLocation();
        }
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        getMenuInflater().inflate(R.menu.menu_main, menu);
        return true;
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        int id = item.getItemId();
        if (id == R.id.logout){
            user.logOut(getApplicationContext());
            startActivity(new Intent(getApplicationContext(), Login.class));
            return true;
        }
        return super.onOptionsItemSelected(item);
    }

    private void getLocation() {
        Map<String, String> params = new HashMap<>();
        params.put("category", "place");

        progressDialog = new ProgressDialog(MainActivity.this);
        progressDialog.setMessage("Loading...");
        progressDialog.show();

        CustomRequest jsonObj = new CustomRequest(Request.Method.POST, url, params,
                new Response.Listener<JSONObject>() {
                    @Override
                    public void onResponse(JSONObject response) {
                        Log.d(TAG, response.toString());

                        // awal data sementara
                        try{
                            JSONArray jsonArray = response.getJSONArray("location");
                            for (int i = 0; i < jsonArray.length(); i++){
                                JSONObject c = jsonArray.getJSONObject(i);
                                String name = c.getString("location_name");
                                String province = c.getString("province");
                                String city = c.getString("city");
                                String picture = c.getString("picture");
                                String latitude = c.getString("latitude");
                                String longitude = c.getString("longitude");
                                String location_id = c.getString("location_id");
                                String category = c.getString("category");
                                locationList.add(new LocationData(
                                        name,
                                        province,
                                        city,
                                        picture,
                                        latitude,
                                        longitude,
                                        location_id,
                                        category
                                ));
                            }
                        } catch (JSONException e){
                            e.printStackTrace();
                        }


                        // akhir data sementara

                        progressDialog.dismiss();
                    }
                }, new Response.ErrorListener() {
            @Override
            public void onErrorResponse(VolleyError error) {
                VolleyLog.d(TAG, "Error: " + error.getMessage());
                progressDialog.dismiss();
            }
        });
        AppController.getInstance().addToRequestQueue(jsonObj);
    }

//    private void fillList(){
////        lvLocation.setAdapter(adapter);
//    }
}