Android Open Source - Smartlab Book List Adapter

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License

The source code is released under:

Apache License

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Java Source Code

package com.example.listviewexample.data;
//from w w  w. j  ava  2  s.c o  m
import java.util.ArrayList;

import com.example.listviewexample.R;

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;

public class BookListAdapter extends BaseAdapter {

  Context context;
  ArrayList<Book> data;

  public BookListAdapter(Context context, ArrayList<Book> data) {
    this.context = context;
    this.data = data;
  }

  @Override
  public int getCount() {
    return data == null ? 0 : data.size();
  }

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

  @Override
  public long getItemId(int position) {
    return data.get(position).getId();
  }

  @Override
  public View getView(final int position, View convertView, ViewGroup parent) {
    ViewHolder holder;

    if (convertView == null) {
      LayoutInflater inflater = (LayoutInflater) context
          .getSystemService(Context.LAYOUT_INFLATER_SERVICE);
      convertView = inflater.inflate(R.layout.item_book_list, null);
      
      holder = new ViewHolder();    
      holder.nameTextView = (TextView) convertView.findViewById(R.id.nameTextView);
      holder.authorTextView = (TextView) convertView.findViewById(R.id.authorTextView);
      holder.deleteButton = (Button) convertView.findViewById(R.id.deleteButton);
      holder.deleteButton.setOnClickListener(clickListener);      
      
      convertView.setTag(holder);
    } else {
      holder = (ViewHolder) convertView.getTag();
    }

    holder.nameTextView.setText(data.get(position).getName());
    holder.authorTextView.setText(data.get(position).getAuthor());
    holder.deleteButton.setTag(position);

    return convertView;
  }
  
  OnClickListener clickListener = new OnClickListener() {
    
    @Override
    public void onClick(View v) {
      int position = (int) v.getTag();
      Toast.makeText(context, "Bottun clicked on item:" + position, Toast.LENGTH_SHORT).show();
    }
  };

  static class ViewHolder {
    TextView nameTextView;
    TextView authorTextView;
    Button deleteButton;
  }

}

Java Source Code List