ActivityFeed.java

package com.brink.main.Fragments;

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

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

import android.content.Context;
import android.graphics.Bitmap;
import android.os.AsyncTask;
import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import android.support.v4.app.FragmentManager;
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.AdapterView;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.ProgressBar;
import android.widget.TextView;

import com.brink.main.R;
import com.brink.main.api.FeedApiManager;
import com.brink.main.contracts.ISecondTaskNotifier;
import com.brink.main.contracts.IThirdTaskNotifier;
import com.brink.main.converters.FeedConverter;
import com.brink.main.models.Checkin;
import com.brink.main.models.FeedItem;

public class ActivityFeed extends FragmentActivity {
	
	private static String TAG = "ActivityFeedFragmentActivity";
	public static Context mContext;
	
	@Override 
	public void onCreate(Bundle savedInstanceState)
	{
		super.onCreate(savedInstanceState);
		FragmentManager fm = getSupportFragmentManager();
		//Add our fragment if and only if it has not been added before
		if(fm.findFragmentById(android.R.id.content) == null)
		{
			Log.i(TAG, "onCreate - Adding FeedFragment");
			FeedFragment mFeedFragment = new FeedFragment();
			fm.beginTransaction().add(android.R.id.content, mFeedFragment).commit();
		}
	}
	
	public static class FeedFragment extends ListFragment {
		@Override
	    public View onCreateView(LayoutInflater inflater, ViewGroup container,
	                             Bundle savedInstanceState) {
	        // Inflate the layout for this fragment
	        return inflater.inflate(R.layout.feed, container, false);
	    }
		
		public void onActivityCreated(Bundle savedInstanceState) {
			 super.onActivityCreated(savedInstanceState);
			 mContext = getActivity();
			 ActivityFeed eFeed = new ActivityFeed();			 
			 FeedAdapter mFeedAdapter = eFeed.new FeedAdapter(getActivity());
			 this.setListAdapter(mFeedAdapter);
		 }
		
		
	}
	/*
	 * Name: ActivityFeedListAdapter
	 * Description: Adapter to mesh the array of items containted in the data feed and the list.
	 * @param ArrayList<feedItems> items: This will be the list of items to be displayed to the user.
	 */
	public class FeedAdapter extends BaseAdapter implements  ISecondTaskNotifier<List<FeedItem>>, AdapterView.OnItemClickListener{
		private ArrayList<FeedItem> feedData = new ArrayList<FeedItem>();
		private FeedItem mLoadingItem = new FeedItem();
		private LayoutInflater mInflater;
		private Context mContext;
		private Checkin mCheckin = null;
	
		private static final int TYPE_CHECKIN = 0;
		private static final int TYPE_TRENDING =1;
		private static final int TYPE_ADVERTITEM = 2;
		private static final int TYPE_LOAD = 3;
		
		public ISecondTaskNotifier<List<FeedItem>> _notifier;
		
		public FeedAdapter(Context _context) {
			mContext = _context;
			mInflater = (LayoutInflater)mContext.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
			_notifier = this;
			mLoadingItem.SetEnum("Loading");
			AsyncTask<Integer, Void, List<FeedItem>> mFeedTask = FeedApiManager.getFeedItems(_notifier, "Baton Rouge");
			mFeedTask.execute(0);
		}
		
		public void addFeedItems(List<FeedItem> feedItems) {
			if(feedData.size() == 0) {
				feedData.addAll(feedItems);
				feedData.add(mLoadingItem);
				notifyDataSetChanged();
			} else {
				feedData.remove(feedData.size() - 1);
				feedData.addAll(feedItems);
				feedData.add(mLoadingItem);
				notifyDataSetChanged();
			}
		}
		public int getCount() {
			return feedData.size();
		}
		public Object getItem(int position) {
			return feedData.get(position);
		}
        public int getViewTypeCount() {
            return 2;
        }
	    public int getItemViewType(int position) {
	    	return feedData.get(position).type.TypeValue();
	    }
	        
		public long getItemId(int position) {
			return position;
		}
		
		public View getView(int position, View convertView, ViewGroup parent) {
		
			RatedItemHolder rateHolder = null;
			LoadItemHolder loadHolder = null;
			AdvertisementHolder advertHolder = null;
			int type = getItemViewType(position);
			if(convertView == null) {
				switch(type) {
					case TYPE_CHECKIN: 
						convertView = mInflater.inflate(R.layout.feeditem1, null);
						rateHolder = new RatedItemHolder();
						rateHolder.barName = (TextView)convertView.findViewById(R.id.feeditemratebarname);
						rateHolder.barRating = (TextView)convertView.findViewById(R.id.feeditemratebarrating);
						rateHolder.checkedIn = (TextView)convertView.findViewById(R.id.feeditemratebarcheckins);
						rateHolder.usersName = (TextView)convertView.findViewById(R.id.feeditemrateusersname);
						rateHolder.userTakenPicture = (ImageView)convertView.findViewById(R.id.ratedbarpicture);
						convertView.setTag(rateHolder);
						break;
					//This is the case for when we add advertisement items.	
					case TYPE_ADVERTITEM:
						
						break;
					case TYPE_TRENDING:
						
						break;
					case TYPE_LOAD:
						convertView = mInflater.inflate(R.layout.feed_load, null);
						loadHolder = new LoadItemHolder();
						loadHolder.feedLoad = (ProgressBar)convertView.findViewById(R.id.feedloadprogress);
						convertView.setTag(loadHolder);
						break;
				}
			} else {
				switch(type) {
				case TYPE_CHECKIN: 
					rateHolder = (RatedItemHolder) convertView.getTag();
					break;
				//This is the case for when we add advertisement items.	
				case TYPE_ADVERTITEM:
					
					break;
				case TYPE_TRENDING:
					
					break;
				case TYPE_LOAD:
					loadHolder = (LoadItemHolder) convertView.getTag();
					break;
			}
			}
			
			//Setting the data on to the feed.
			switch(type) {
					case TYPE_CHECKIN: 
						//Get the information to inflate;
						mCheckin = new Checkin();
						mCheckin = (Checkin) getItem(position);
						rateHolder.barName.setText(mCheckin.Bar.Name);
						rateHolder.barRating.setText(mCheckin.Bar.Rating);
						rateHolder.checkedIn.setText("" + mCheckin.Bar.CheckinCount);
						rateHolder.usersName.setText(mCheckin.User.Name);
						rateHolder.userTakenPicture.setImageBitmap(mCheckin.Image);
						break;
					//This is the case for when we add advertisement items.	
					case TYPE_ADVERTITEM:
						
						break;
					case TYPE_TRENDING:
						
						break;
					case TYPE_LOAD:
						loadHolder.feedLoad.setVisibility(View.INVISIBLE);
						break;
						}
		return convertView;
		}



		public void onSecondTaskComplete(List<FeedItem> result) {
			addFeedItems(result);
		}

		public void onItemClick(AdapterView<?> arg0, View arg1, int position,
				long id) {
			Log.i("TAG", "Receiving input");
			
		}
	}

	
//TODO adjust later to where these are in the current format of the app.
	

	
	public static class Advertisement {
		public String barName, barAddress, happeningSpecial;
		Bitmap barLogo;
	}
	public static class RatedItemHolder {
		TextView barName, barRating, usersName, checkedIn;
		ImageView userTakenPicture;
	}
	public static class LoadItemHolder {
		ProgressBar feedLoad;
	}
	public static class AdvertisementHolder {
		TextView barName, barAddress, happeningSpecial;
		ImageView barLogo;
	}
	

	
	
}