app.hacked.ChallengeListFragment.java Source code

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Here is the source code for app.hacked.ChallengeListFragment.java

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/*
 * Copyright (C) 2013 - Gareth Llewellyn
 *
 * This file is part of the Unofficial HackedIO Android App https://github.com/NetworksAreMadeOfString/HackedIO-Android-App
 *
 * This app is unofficial. The "Hacked.io" logo is copyright (and maybe even a trademark of) Telefnica UK Limited.
 * The author of this app is not affiliated with Telefnica UK Limited, The Lab ( https://thelab.o2.com/ ) or
 * Geeks of London ( http://geeksoflondon.com/ ) although the author <strong>is</strong> an attendee.
 *
 * This program is free software: you can redistribute it and/or modify it
 * under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU General Public License
 * for more details.
 *
 * You should have received a copy of the GNU General Public License along with
 * this program. If not, see <http://www.gnu.org/licenses/>
 */
package app.hacked;

import android.app.Activity;
import android.os.Bundle;
import android.support.v4.app.ListFragment;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.ListView;
import android.widget.Toast;
import com.android.volley.Request;
import com.android.volley.RequestQueue;
import com.android.volley.Response;
import com.android.volley.VolleyError;
import com.android.volley.toolbox.JsonObjectRequest;
import com.android.volley.toolbox.Volley;
import org.json.JSONArray;
import org.json.JSONObject;

import java.util.ArrayList;
import java.util.List;

public class ChallengeListFragment extends ListFragment {
    /*TrapListAdapter adapter = null;
    TrapsDataSource datasource = null;*/

    RequestQueue queue = null;

    public static final int ATTACHTYPE = 0;

    /**
     * A list of the challenges at Hacked.io
     */
    public List<ChallengeItem> HackedIOChallenges = null;

    /**
     * The serialization (saved instance state) Bundle key representing the
     * activated item position. Only used on tablets.
     */
    private static final String STATE_ACTIVATED_POSITION = "activated_position";

    /**
     * The fragment's current callback object, which is notified of list item
     * clicks.
     */
    private Callbacks mCallbacks = sDummyCallbacks;

    /**
     * The current activated item position. Only used on tablets.
     */
    private int mActivatedPosition = ListView.INVALID_POSITION;

    private View progressBar = null;
    /**
     *
     */
    ChallengeListAdapter adapter = null;

    /**
     * A callback interface that all activities containing this fragment must
     * implement. This mechanism allows activities to be notified of item
     * selections.
     */
    public interface Callbacks {
        /**
         * Callback for when an item has been selected.
         */
        public void onChallengeItemSelected(ChallengeItem challenge);
    }

    /**
     * A dummy implementation of the {@link Callbacks} interface that does
     * nothing. Used only when this fragment is not attached to an activity.
     */
    private static Callbacks sDummyCallbacks = new Callbacks() {
        @Override
        public void onChallengeItemSelected(ChallengeItem challenge) {
        }
    };

    /**
     * Mandatory empty constructor for the fragment manager to instantiate the
     * fragment (e.g. upon screen orientation changes).
     */
    public ChallengeListFragment() {
    }

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        queue = Volley.newRequestQueue(getActivity());
    }

    private void getData() {
        if (null != progressBar)
            progressBar.setVisibility(View.VISIBLE);

        HackedIOChallenges = new ArrayList<ChallengeItem>();

        String url = "http://hackedioapp.networksaremadeofstring.co.uk/challenges.php";

        JsonObjectRequest jsObjRequest = new JsonObjectRequest(Request.Method.GET, url, null,
                new Response.Listener<JSONObject>() {
                    @Override
                    public void onResponse(JSONObject response) {
                        try {
                            Log.e("response", response.toString());
                            if (response.has("success") && response.getBoolean("success")
                                    && response.has("challenges")) {
                                JSONArray challenges = response.getJSONArray("challenges");
                                int size = challenges.length();
                                for (int i = 0; i < size; i++) {
                                    JSONObject challengeItem = challenges.getJSONObject(i);

                                    HackedIOChallenges.add(new ChallengeItem(challengeItem));
                                }

                                adapter = new ChallengeListAdapter(getActivity(), HackedIOChallenges);

                                if (null != progressBar)
                                    progressBar.setVisibility(View.GONE);

                                setListAdapter(adapter);
                            } else {
                                Toast.makeText(getActivity(), "An Error Was encountered", Toast.LENGTH_SHORT)
                                        .show();
                            }
                        } catch (Exception e) {
                            e.printStackTrace();
                            Toast.makeText(getActivity(), "An Error Was encountered", Toast.LENGTH_SHORT).show();
                        }

                    }
                }, new Response.ErrorListener() {

                    @Override
                    public void onErrorResponse(VolleyError error) {
                        // TODO Auto-generated method stub
                        Toast.makeText(getActivity(), "An Error Was encountered", Toast.LENGTH_SHORT).show();
                    }
                });

        queue.add(jsObjRequest);
    }

    @Override
    public void onViewCreated(View view, Bundle savedInstanceState) {
        super.onViewCreated(view, savedInstanceState);

        // Restore the previously serialized activated item position.
        if (savedInstanceState != null && savedInstanceState.containsKey(STATE_ACTIVATED_POSITION)) {
            setActivatedPosition(savedInstanceState.getInt(STATE_ACTIVATED_POSITION));
        }

        if (getActivity().findViewById(R.id.ChallengeDetails) != null && savedInstanceState == null) {
            ChallengeWelcomeFragment fragment = new ChallengeWelcomeFragment();
            getActivity().getSupportFragmentManager().beginTransaction().replace(R.id.ChallengeDetails, fragment)
                    .commit();
        }

        getData();
    }

    @Override
    public void onAttach(Activity activity) {
        super.onAttach(activity);

        // Activities containing this fragment must implement its callbacks.
        if (!(activity instanceof Callbacks)) {
            throw new IllegalStateException("Activity must implement fragment's callbacks.");
        }

        mCallbacks = (Callbacks) activity;
    }

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

        // Reset the active callbacks interface to the dummy implementation.
        mCallbacks = sDummyCallbacks;
    }

    @Override
    public void onListItemClick(ListView listView, View view, int position, long id) {
        super.onListItemClick(listView, view, position, id);

        // Notify the active callbacks interface (the activity, if the
        // fragment is attached to one) that an item has been selected.
        //mCallbacks.onItemSelected(DummyContent.ITEMS.get(position).id);
        mCallbacks.onChallengeItemSelected(HackedIOChallenges.get(position));

        //We want to keep track of this for our own purposes
        mActivatedPosition = position;
        //mSelectedScheduleItem = HackedIOSchedule.get(position).Hostname;
    }

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View view = inflater.inflate(R.layout.challenge_list_fragment, null);
        progressBar = view.findViewById(R.id.progressBar);
        return view;
    }

    @Override
    public void onSaveInstanceState(Bundle outState) {
        super.onSaveInstanceState(outState);

        if (mActivatedPosition != ListView.INVALID_POSITION) {
            // Serialize and persist the activated item position.
            outState.putInt(STATE_ACTIVATED_POSITION, mActivatedPosition);
        }
    }

    /**
     * Turns on activate-on-click mode. When this mode is on, list items will be
     * given the 'activated' state when touched.
     */
    public void setActivateOnItemClick(boolean activateOnItemClick) {
        // When setting CHOICE_MODE_SINGLE, ListView will automatically
        // give items the 'activated' state when touched.
        getListView().setChoiceMode(activateOnItemClick ? ListView.CHOICE_MODE_SINGLE : ListView.CHOICE_MODE_NONE);
    }

    private void setActivatedPosition(int position) {
        if (position == ListView.INVALID_POSITION) {
            getListView().setItemChecked(mActivatedPosition, false);
        } else {
            getListView().setItemChecked(position, true);
        }

        mActivatedPosition = position;
    }
}