PartyListFragment.java

package com.letsvote.ui.fragment;

import android.content.ContentUris;
import android.content.Intent;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Toast;

import com.fasterxml.jackson.databind.ObjectMapper;
import com.letsvote.R;
import com.letsvote.api.RetrofitAPI;
import com.letsvote.model.PartyItem;
import com.letsvote.provider.party.PartyContentValues;
import com.letsvote.provider.party.PartySelection;
import com.letsvote.ui.activities.PartyDetailsActivity;
import com.letsvote.ui.activities.PolicyActivity;
import com.letsvote.ui.adapters.PartyListAdapter;
import com.letsvote.utility.MySharedPreference;
import com.letsvote.utility.PreferenceConfig;

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

import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

import retrofit.Callback;
import retrofit.RetrofitError;
import retrofit.client.Response;

/**
 * Created by Toe Lie on 9/6/2015.
 */

/**
 * Encapsulates fetching the party list and displaying it as a {@link android.support.v7.widget.RecyclerView} layout.
 */

public class PartyListFragment extends Fragment {

    private PartyListAdapter mPartyListAdapter;
    private RecyclerView mRecyclerView;
    private List<PartyItem> mPartyItems;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        mPartyItems = new ArrayList<>();
    }

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

        // Get a reference to the RecyclerView, and attach this adapter to it.
        mRecyclerView = (RecyclerView) rootView.findViewById(R.id.party_list_recyclerview);

        // Set the layout manager
        mRecyclerView.setLayoutManager(new LinearLayoutManager(getActivity()));
        //View emptyView = rootView.findViewById(R.id.recyclerview_party_empty);

        // use this setting to improve performance if you know that changes
        // in content do not change the layout size of the RecyclerView
        mRecyclerView.setHasFixedSize(true);

        ArrayList<PartyItem> itemlist = new ArrayList<>();

        for (int i = 0; i < 10; i++) {
            PartyItem item = new PartyItem();
            item.setPartyName("Party " + (i + 1));
            itemlist.add(item);
        }


        // The PartyListAdapter will take data from a source and
        // use it to populate the RecyclerView it's attached to.
        mPartyListAdapter = new PartyListAdapter(getActivity(), new PartyListAdapter.PartyAdapterOnClickHandler() {
            @Override
            public void onClick(String partyId, PartyListAdapter.PartyAdapterViewHolder vh) {
                Intent policyIntent = new Intent(getActivity(), PartyDetailsActivity.class)
                        .putExtra(PartyDetailsFragment.EXTRA_PARTY_ID, partyId);
                startActivity(policyIntent);
            }

            @Override
            public void onViewPolicyClick(String partyId, PartyListAdapter.PartyAdapterViewHolder vh) {
                Intent policyIntent = new Intent(getActivity(), PolicyActivity.class)
                        .putExtra(PolicyFragment.EXTRA_PARTY_ID, partyId);
                startActivity(policyIntent);
            }

            @Override
            public void onContactClick(String partyId, PartyListAdapter.PartyAdapterViewHolder vh) {
                Toast.makeText(getActivity(), "Contact" + partyId, Toast.LENGTH_SHORT).show();
            }
        }, mPartyItems);

        // specify an adapter (see also next example)
        mRecyclerView.setAdapter(mPartyListAdapter);

        fetchPartyList();
       // fetchPartyList();
        return rootView;
    }

    private void fetchPartyList() {

        String token = MySharedPreference.getInstance(getActivity()).getStringPreference(PreferenceConfig.TOKEN, "");
        RetrofitAPI.getInstance(getActivity()).getService().getPartylist(token, new Callback<String>() {
            @Override
            public void success(String s, Response response) {

                if (!s.equals("")) {
                    Object obj = null;
                    List<PartyItem> PartyItemList = new ArrayList<PartyItem>();
                    try {
                        JSONObject listobj = new JSONObject(s);

                        if (!listobj.isNull("data")) {
                            JSONArray listArry = listobj.getJSONArray("data");

                            int i = 0;
                            while (i < listArry.length()) {
                                ObjectMapper mapper = new ObjectMapper();
                                PartyItem partyItem = new PartyItem();

                                try {
                                    obj = mapper.readValue(listArry.getString(i), PartyItem.class);
                                    partyItem = (PartyItem) obj;
                                    PartyItemList.add(partyItem);

                                } catch (IOException e) {
                                    e.printStackTrace();
                                }

                                i++;
                            }

                            mPartyListAdapter = (PartyListAdapter) mRecyclerView.getAdapter();
                            mPartyListAdapter.setList(PartyItemList);
                            mPartyListAdapter.notifyDataSetChanged();
                            Log.e("PARTY_LIST", "COMPLETED");
                        }
                    } catch (JSONException e) {
                        e.printStackTrace();
                    }

                }

            }

            @Override
            public void failure(RetrofitError error) {
                error.printStackTrace();
            }
        });

    }

    /**
     * sample usage of provider generator
     * @param item
     */
    public long addItemToDb(PartyItem item){
        PartyContentValues values = new PartyContentValues();
        values.putPartyName(item.getPartyName());
        values.putPartyNameEnglish(item.getPartyNameEnglish());
        Uri uri = values.insert(getActivity().getContentResolver());
        return ContentUris.parseId(uri);
    }

    /**
     * sample usage of provider generator
     * @return
     * cursor of party list from db
     */
    public Cursor queryItemFromDb(){
        PartySelection selection = new PartySelection();
        return selection.query(getActivity().getContentResolver());
    }


}