Android Open Source - Grocery-Mate Results Adapter

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License

The source code is released under:

Apache License

Java Source Code

/*
* Copyright (C) 2011 iMellon//from  w w  w  . j  a v  a2  s  . c om
*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.imellon.android.grocerymate.util;

import java.util.List;

import com.imellon.android.grocerymate.R;
import com.imellon.android.grocerymate.cache.MemoryCache;
import com.imellon.android.grocerymate.model.Product;

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.ImageView;
import android.widget.TextView;
import android.widget.Toast;

/**
* @author Christos Papazafeiropoulos, Dimitris Makris
*/

public class ResultsAdapter extends BaseAdapter {

  private LayoutInflater mInflater;
  private List<Product> data;
  private Context mContext;
  
  public ResultsAdapter(Context context, List<Product> mList) {
    mContext = context;
    mInflater = LayoutInflater.from(context);
    data = mList;
  }

  public ResultsAdapter(Context context) {
    mInflater = LayoutInflater.from(context);
  }

  public void setData(List<Product> mList) {
    data = mList;
  }

  public List<Product> getData() {
    return data;
  }

  public void addData(List<Product> mList) {
    data.addAll(mList);
  }

  public int getCount() {
    return data.size();
  }

  public Object getItem(int position) {
    return position;
  }

  public View getView(final int position, View convertView, ViewGroup parent) {
    ViewHolder holder;
    if (convertView == null) {
      convertView = mInflater.inflate(
          R.layout.activity_product_search_list_item, null);

      holder = new ViewHolder();
      holder.product_title = (TextView) convertView
          .findViewById(R.id.product_title);
      holder.product_basket = (ImageView) convertView
          .findViewById(R.id.product_basket);

      convertView.setTag(holder);
    } else {
      holder = (ViewHolder) convertView.getTag();
    }
    
    holder.product_title.setText(data.get(position).Name);
    
    if (MemoryCache.getInstance().getProduct(data.get(position).ProductId) != null) {
      holder.product_basket.setImageResource(android.R.drawable.ic_menu_delete);
    } else {
      holder.product_basket.setImageResource(android.R.drawable.ic_menu_add);
    }
    
    holder.product_basket.setOnClickListener(new OnClickListener() {

      @Override
      public void onClick(View v) {
        if (MemoryCache.getInstance().getProduct(data.get(position).ProductId) != null) {
          MemoryCache.getInstance().removeProduct(
              data.get(position).ProductId);
          Toast.makeText(mContext, R.string.success_remove, Toast.LENGTH_SHORT)
              .show();
          ((ImageView) v).setImageResource(android.R.drawable.ic_menu_add);
        } else {
          MemoryCache.getInstance().putProduct(
              data.get(position).ProductId, data.get(position));
          Toast.makeText(mContext, R.string.success_add, Toast.LENGTH_SHORT)
              .show();
          ((ImageView) v).setImageResource(android.R.drawable.ic_menu_delete);
        }
      }
    });

    return convertView;
  }

  class ViewHolder {
    TextView product_title;
    ImageView product_basket;
  }

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

Java Source Code List

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