Android Open Source - SimpleReader Category Detail Adapter

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License

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

package com.dreamteam.app.adapter;
//  w  w w . ja  v a  2s.co  m
import java.util.ArrayList;

import android.content.Context;
import android.content.Intent;
import android.database.sqlite.SQLiteDatabase;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.ImageButton;
import android.widget.TextView;

import com.dreamteam.app.commons.SectionHelper;
import com.dreamteam.app.db.DbManager;
import com.dreamteam.app.db.FeedDBManager;
import com.dreamteam.app.entity.Feed;
import com.dreamteam.app.ui.MainActivity;
import com.dreateam.app.ui.R;

public class CategoryDetailAdapter extends BaseAdapter
{
  public static final String tag = "CategoryDetailAdapter";
  private LayoutInflater inflater;
  private Context context;
  private ArrayList<Feed> feeds;
  private String tableName;//??????????
  public static final String SECTION_TABLE_NAME = "section";
  private int[] imgIds = {
      R.drawable.add,
      R.drawable.added
  };
  
  
  public CategoryDetailAdapter(Context context, ArrayList<Feed> feeds, String tableName)
  {
    this.context = context;
    this.feeds = feeds;
    this.tableName = tableName;
    inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
  }
  
  public void updateData(ArrayList<Feed> feeds)
  {
    this.feeds = feeds;
    notifyDataSetChanged();
  }
  
  @Override
  public int getCount()
  {
    return feeds.size();
  }

  @Override
  public Object getItem(int position)
  {
    return feeds.get(position);
  }

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

  @Override
  public View getView(final int position, View convertView, ViewGroup parent)
  {
    final ViewHolder holder;
    
    if(convertView == null)
    {
      convertView = inflater.inflate(R.layout.category_detail_item, null);
      holder = new ViewHolder();
      holder.feedTitle = (TextView) convertView.findViewById(R.id.category_detail_feed_title);
      holder.addBtn = (ImageButton) convertView.findViewById(R.id.category_detail_add);
      convertView.setTag(holder);
    }
    else
    {
      holder = (ViewHolder) convertView.getTag();
    }
    holder.addBtn.setOnClickListener(new OnClickListener()
    {
      @Override
      public void onClick(View v)
      {
        Feed feed = feeds.get(position);
        String title = feed.getTitle();
        String url = feed.getUrl();
        Intent intent = new Intent();
        int state = 0;//??????
        DbManager mgr = new DbManager(context, DbManager.DB_NAME, null, 1);

        //???????????????
        if(feed.isSelected())
        {
          //??????feeds
          feed.setSelectStatus(state);
          holder.addBtn.setImageResource(imgIds[0]);
          //???????
          intent.putExtra("url", feed.getUrl());
          intent.setAction(MainActivity.ACTION_DELETE_SECTION);
          context.sendBroadcast(intent);
          //??section?????????
          SectionHelper.removeRecord(mgr.getWritableDatabase(), url);
          //??feed.db??????????0
          new FeedDBManager(context, FeedDBManager.DB_NAME, null, 1)
                .updateState(tableName, state, url);
          return;
        }
        //??????????
        state = 1;
        feed.setSelectStatus(state);
        holder.addBtn.setImageResource(imgIds[1]);
        //???????
        intent.setAction(MainActivity.ACTION_ADD_SECTION);
        context.sendBroadcast(intent);
        //??section?
        SQLiteDatabase db = mgr.getWritableDatabase();
        SectionHelper.insert(db, tableName, title, url);
        db.close();
        //??feed.db??????????1
        FeedDBManager feedHelper = new FeedDBManager(context, FeedDBManager.DB_NAME, null, 1);
        feedHelper.updateState(tableName,state, url);
      }
    });
    Feed feed = feeds.get(position);
    holder.feedTitle.setText((CharSequence)
        feed.getTitle());
    //addBtn???????
    holder.addBtn.setImageResource(imgIds[feed.getSelectStatus()]);
    return convertView;
  }
  
  private static final class ViewHolder
  {
    TextView feedTitle;
    ImageButton addBtn;
  }
  
}
Java Source Code List
