pl.poznan.put.cs.ify.app.fragments.MarketFragment.java Source code

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Here is the source code for pl.poznan.put.cs.ify.app.fragments.MarketFragment.java

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/*******************************************************************************
 * Copyright 2014 if{y} team
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *   http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 ******************************************************************************/
package pl.poznan.put.cs.ify.app.fragments;

import java.util.List;

import org.json.JSONArray;

import pl.poznan.put.cs.ify.api.network.QueueSingleton;
import pl.poznan.put.cs.ify.app.market.JsonParser;
import pl.poznan.put.cs.ify.app.market.MarketInfo;
import pl.poznan.put.cs.ify.app.market.MarketInfoAdapter;
import pl.poznan.put.cs.ify.app.market.MarketInfoDetailsFrag;
import pl.poznan.put.cs.ify.appify.R;
import android.os.Bundle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentTransaction;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ListView;

import com.android.volley.RequestQueue;
import com.android.volley.Response;
import com.android.volley.Response.Listener;
import com.android.volley.VolleyError;
import com.android.volley.toolbox.JsonArrayRequest;

public class MarketFragment extends Fragment {

    private static final int LIMIT = 10;

    private MarketInfoAdapter mAdapter;
    private ListView mRecipesList;
    private View mLoadingView;
    private View mErrorView;

    private View mFooter;
    private int mCurrentPage = 1;

    private RequestQueue mRequestQueue;

    private View mLoadMore;

    @Override
    public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
        View v = inflater.inflate(R.layout.activity_market, null);
        // TODO: Keep this request queue in singleton
        mRequestQueue = QueueSingleton.getInstance(getActivity());
        mAdapter = new MarketInfoAdapter(getActivity());
        initGui(v);
        loadData();
        return v;
    }

    private void initGui(View v) {
        mLoadMore = v.findViewById(R.id.load_more_layout);
        mLoadMore.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                loadData();
            }
        });
        mRecipesList = (ListView) v.findViewById(R.id.market_list);
        mLoadingView = v.findViewById(R.id.loading_layout);
        mErrorView = v.findViewById(R.id.error_layout);
        mRecipesList.setAdapter(mAdapter);
        mRecipesList.setOnItemClickListener(new OnItemClickListener() {

            @Override
            public void onItemClick(AdapterView<?> arg0, View v, int pos, long id) {
                MarketInfo item = mAdapter.getItem(pos);
                // downloadJar(item);
                FragmentTransaction ft = getActivity().getSupportFragmentManager().beginTransaction();
                ft.add(MarketInfoDetailsFrag.getInstance(item), "MARKET_DETAILS");
                ft.commit();
            }
        });
        mErrorView.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {
                mErrorView.setVisibility(View.GONE);
                loadData();
            }
        });
    }

    private void loadData() {
        mLoadingView.setVisibility(View.VISIBLE);
        mLoadMore.setVisibility(View.GONE);
        JsonArrayRequest arrayReq = new JsonArrayRequest(getUrl(), new Listener<JSONArray>() {

            @Override
            public void onResponse(JSONArray response) {
                mLoadingView.setVisibility(View.GONE);
                JsonParser parser = new JsonParser();
                Log.d("RESPONSE", response.toString());
                List<MarketInfo> recipeInfos = parser.parseRecipesInfo(response);
                mAdapter.addData(recipeInfos);
                Log.d("RESPONSE SIZE", mAdapter.getCount() + "");
                mAdapter.notifyDataSetChanged();
                if (recipeInfos.size() < LIMIT) {
                    mLoadMore.setVisibility(View.GONE);
                } else {
                    mLoadMore.setVisibility(View.VISIBLE);
                }
            }
        }, new Response.ErrorListener() {

            @Override
            public void onErrorResponse(VolleyError error) {
                mLoadingView.setVisibility(View.GONE);
                mErrorView.setVisibility(View.VISIBLE);
                mLoadMore.setVisibility(View.VISIBLE);
            }
        });
        arrayReq.setShouldCache(false);
        mRequestQueue.add(arrayReq);
    }

    private String getUrl() {
        int page = mAdapter.getCount() / LIMIT + 1;
        return "http://ify.cs.put.poznan.pl/~scony/marketify/api/recipes.php?page=" + page + "&limit=" + LIMIT;
    }

}