com.wahyuadityanugraha.mvpexample.app.finditems.FeedActivity.java Source code

Introduction

Here is the source code for com.wahyuadityanugraha.mvpexample.app.finditems.FeedActivity.java

Source

/*
 *
 *  * Copyright (C) 2014 Antonio Leiva Gordillo.
 *  *
 *  * 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 com.wahyuadityanugraha.mvpexample.app.finditems;

import android.app.Activity;
import android.os.Bundle;
import android.os.Handler;
import android.support.v4.widget.SwipeRefreshLayout;
import android.view.View;
import android.widget.AbsListView;
import android.widget.AdapterView;
import android.widget.ListView;
import android.widget.ProgressBar;
import android.widget.Toast;

import com.android.volley.Response;
import com.android.volley.VolleyError;
import com.android.volley.toolbox.JsonObjectRequest;
import com.j256.ormlite.android.apptools.OrmLiteBaseActivity;
import com.wahyuadityanugraha.mvpexample.app.R;
import com.wahyuadityanugraha.mvpexample.app.adapter.FeedAdapter;
import com.wahyuadityanugraha.mvpexample.app.application.MyApplication;
import com.wahyuadityanugraha.mvpexample.app.databases.Repo;
import com.wahyuadityanugraha.mvpexample.app.entities.Feed;
import com.wahyuadityanugraha.mvpexample.app.entities.Feeds;
import com.wahyuadityanugraha.mvpexample.app.server.ConvertStringToJSON;

import org.codehaus.jackson.JsonParseException;
import org.codehaus.jackson.map.JsonMappingException;
import org.json.JSONObject;

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

public class FeedActivity extends Activity implements FeedFunction, AdapterView.OnItemClickListener,
        AbsListView.OnScrollListener, SwipeRefreshLayout.OnRefreshListener {

    private ListView listView;
    private ProgressBar progressBar;
    private SwipeRefreshLayout swipeContainer;
    private FeedAdapter feedAdapter;
    private FeedPresenter presenter;
    private Feeds myFeeds;
    private Repo repo;
    private JsonObjectRequest mJsonObjectRequest;
    private static final String API_URL = "http://api.androidhive.info/feed/feed.json";

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

    private void init() {
        presenter = new FeedPresenterImpl(this);
        mJsonObjectRequest = new JsonObjectRequest(API_URL, null, mObjectListener, errorListener);
        MyApplication.getInstance().addToRequestQueue(mJsonObjectRequest);
        findViews();
    }

    @Override
    protected void onResume() {
        super.onResume();
        presenter.onResume();
    }

    private void findViews() {
        listView = (ListView) findViewById(R.id.list);

        swipeContainer = (SwipeRefreshLayout) findViewById(R.id.swipe_container);
        swipeContainer.setEnabled(false);
        swipeContainer.setOnRefreshListener(this);
        swipeContainer.setColorScheme(android.R.color.holo_blue_bright, android.R.color.holo_green_light,
                android.R.color.holo_orange_light, android.R.color.holo_red_light);
        progressBar = (ProgressBar) findViewById(R.id.progress);

        listView.setOnItemClickListener(this);
        listView.setOnScrollListener(this);
    }

    @Override
    public void showProgress() {
        progressBar.setVisibility(View.VISIBLE);
        listView.setVisibility(View.INVISIBLE);
    }

    @Override
    public void hideProgress() {
        progressBar.setVisibility(View.INVISIBLE);
        listView.setVisibility(View.VISIBLE);
    }

    @Override
    public void setItems(List<Feed> items) {
        feedAdapter = new FeedAdapter(this, 0, items);
        listView.setAdapter(feedAdapter);
    }

    @Override
    public void showMessage(String message) {
        Toast.makeText(this, message, Toast.LENGTH_LONG).show();
    }

    @Override
    public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
        presenter.onItemClicked(position);
    }

    private Response.Listener<JSONObject> mObjectListener = new Response.Listener<JSONObject>() {
        @Override
        public void onResponse(JSONObject jsonObject) {
            //Log.i("response : ", jsonObject.toString());

            try {
                repo = new Repo(getApplicationContext());
                myFeeds = ConvertStringToJSON.getFeeds(jsonObject.toString(), getApplicationContext());
            } catch (JsonParseException e) {
                myFeeds = null;
            } catch (JsonMappingException e) {
                myFeeds = null;
            } catch (IOException e) {
                myFeeds = null;
            }

            if (myFeeds != null) {
                setItems(myFeeds.getFeed());
                for (int i = 0; i < myFeeds.getFeed().size(); i++) {
                    myFeeds.getFeed().get(i).save(repo);
                }
            }
            hideProgress();
        }
    };

    private Response.ErrorListener errorListener = new Response.ErrorListener() {
        @Override
        public void onErrorResponse(VolleyError volleyError) {

        }
    };

    @Override
    public void onRefresh() {
        new Handler().postDelayed(new Runnable() {
            @Override
            public void run() {
                mJsonObjectRequest = new JsonObjectRequest(API_URL, null, mObjectListener, errorListener);
                swipeContainer.setRefreshing(false);
            }
        }, 5000);
    }

    @Override
    public void onScrollStateChanged(AbsListView view, int scrollState) {

    }

    @Override
    public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
        if (firstVisibleItem == 0)
            swipeContainer.setEnabled(true);
        else
            swipeContainer.setEnabled(false);
    }
}