MainActivityFragment.java

package com.example.zdroa.fetchmovies;

import android.os.AsyncTask;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.Button;
import android.widget.ListView;

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

import java.util.TreeMap;

public class MainActivityFragment extends Fragment {

    private static String API_KEY = "b692b9da86f1cf0c1b623ea6e2770101";

    ListView listView;
    Button button;

    static TreeMap<Integer, Integer> IDS;
    static TreeMap<Integer, String> TITLES;
    static TreeMap<Integer, String> POSTERS;
    static TreeMap<Integer, String> GENRES;
    static TreeMap<Integer, String> PRODUCTION_COUNTRIES;
    static TreeMap<Integer, String> OVERVIEW;
    static TreeMap<Integer, String> RUNTIME;

    public MainActivityFragment() {
    }

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

        listView = (ListView) rootView.findViewById(R.id.lvMovies);

        new ImageLoadTask().execute();

        //if fragment is visible
        if (getActivity() != null) {


            listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {

                public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                    System.out.println(TITLES.ceilingEntry(position).getValue());
                }
            });
        }
        return rootView;
    }

    @Override
    public void onStart() {
        super.onStart();

    }

    private class ImageLoadTask extends AsyncTask<Void, Void, Void> {

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

            IDS = new TreeMap<>();

            IDS.put(1, 2);
            IDS.put(2, 3);
            IDS.put(3, 5);
            IDS.put(4, 6);
            IDS.put(5, 8);
            IDS.put(6, 9);
            IDS.put(7, 11);
            IDS.put(8, 12);
            IDS.put(9, 13);
            IDS.put(10, 14);


            populateTreeMaps();


            return null;
        }

        @Override
        protected void onPostExecute(Void result) {
            if (getActivity() != null) {
                ListViewAdaptor adapter = new ListViewAdaptor(getActivity(), POSTERS, TITLES);
                listView.setAdapter(adapter);

                System.out.println(POSTERS);
                System.out.println(TITLES);
            }
        }

        private Void populateTreeMaps() {
            HttpHandler httpHandler = new HttpHandler();

            TITLES = new TreeMap<>();
            POSTERS = new TreeMap<>();

            for (int i = 0; i < IDS.size(); i++) {
                String jsonString = httpHandler.makeServiceCall("https://api.themoviedb.org/3/movie/" + IDS.ceilingEntry(i).getValue() + "?api_key=" + API_KEY);

                if (jsonString != null) {
                    try {
                        //POPULATE ALL THE GRAPHS HERE
                        getTitles(jsonString, IDS.ceilingEntry(i).getValue());
                        getPosterURLs(jsonString, IDS.ceilingEntry(i).getValue());

                    } catch (JSONException e) {
                        return null;
                    }
                }
            }
            return null;
        }

        private void getTitles(String JSONString, Integer mov_id) throws JSONException {
            JSONObject jsonObject = new JSONObject(JSONString);

            String title = jsonObject.getString("title");

            TITLES.put(mov_id, title);
        }

        private void getPosterURLs(String JSONString, Integer mov_id) throws JSONException {
            JSONObject jsonObject = new JSONObject(JSONString);

            String url = jsonObject.getString("poster_path");

            POSTERS.put(mov_id, url);
        }

        private void getYoutubeLink() {


        }
    }


}