Android Open Source - SimpleReader Item List Adapter

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Back to project page SimpleReader.
License

The source code is released under:
Apache License
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Java Source Code

package com.dreamteam.app.adapter;
/*  w w w  . j av a 2 s. com*/
import java.util.ArrayList;

import android.content.Context;
import android.content.SharedPreferences;
import android.content.res.Resources;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;

import com.dreamteam.app.commons.AppContext;
import com.dreamteam.app.entity.FeedItem;
import com.dreamteam.app.img.ImageLoader;
import com.dreateam.app.ui.R;

public class ItemListAdapter extends BaseAdapter {
  public static final String tag = "ItemListAdapter";
  private Context context;
  private LayoutInflater inflater;
  private ArrayList<FeedItem> items;
  private ArrayList<String> imageUrls = new ArrayList<String>();
  private static int[] colors;
  private boolean loadImg = false;
  private ImageLoader loader;
  private ViewHolder viewHolder;
  
  public ItemListAdapter(Context context, ArrayList<FeedItem> items,
      boolean isNight) {
    loader = new ImageLoader(context);
    this.items = items;
    this.context = context;
    inflater = (LayoutInflater) context
        .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
    Resources res = context.getResources();
    colors = new int[] { res.getColor(R.color.black),
        res.getColor(R.color.dark_gray) };
    if (isNight) {
      colors = new int[] { res.getColor(R.color.white),
          res.getColor(R.color.gray) };
    }
    // ????????
    SharedPreferences prefs = AppContext.getPrefrences(context);
    loadImg = prefs.getBoolean("pref_imageLoad", false);
  }

  @Override
  public int getCount() {
    return items.size();
  }

  @Override
  public FeedItem getItem(int position) {
    return items.get(position);
  }

  @Override
  public long getItemId(int position) {
    return position;
  }

  @Override
  public View getView(int position, View convertView, ViewGroup parent) {
    int colorState = 0;
    if (convertView == null) {
      convertView = inflater.inflate(R.layout.feed_item, null);
      viewHolder = new ViewHolder();
      viewHolder.itemIv = (ImageView) convertView
          .findViewById(R.id.feeditem_image);
      viewHolder.titleTv = (TextView) convertView
          .findViewById(R.id.feeditem_title);
      viewHolder.pubdateTv = (TextView) convertView
          .findViewById(R.id.feeditem_pubdate);
      convertView.setTag(viewHolder);
    } else {
      viewHolder = (ViewHolder) convertView.getTag();
    }
    FeedItem item = items.get(position);
    String title = item.getTitle();
    if (title.length() > 24)
      title = title.substring(0, 25) + "...";
    if (item.isReaded())
      colorState = 1;
    viewHolder.titleTv.setTextColor(colors[colorState]);
    viewHolder.titleTv.setText(title);
    viewHolder.pubdateTv.setText(item.getPubdate());
    imageUrls = item.getImageUrls();
    if (imageUrls.isEmpty() || !loadImg) {
      viewHolder.itemIv.setVisibility(View.GONE);
    } else {
      Bitmap defBitmap = BitmapFactory.decodeResource(context.getResources(),
          R.drawable.loading_default);
      viewHolder.itemIv.setImageBitmap(defBitmap);
      loader.loadImage(imageUrls.get(0), viewHolder.itemIv, false);
    }
    return convertView;
  }

  private static final class ViewHolder {
    ImageView itemIv;
    TextView titleTv;
    TextView pubdateTv;
  }

  public void addItemsToHead(ArrayList<FeedItem> newItems) {
    items.addAll(0, newItems);
    notifyDataSetChanged();
  }
  
}
Java Source Code List
