Android Open Source - AndroidShoppingList Shopping List Adapter

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License

The source code is released under:

Apache License

Java Source Code

/**
 * Copyright 2012 C. A. Fitzgerald// www .j a v a2 s.  co m
 *
 *  Licensed 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.github.riotopsys.shoppinglist.adapter;

import java.util.Collections;
import java.util.Comparator;
import java.util.List;

import com.github.riotopsys.shoppinglist.R;
import com.github.riotopsys.shoppinglist.comparator.ListItemNameComparator;
import com.github.riotopsys.shoppinglist.listener.CheckedChangeListener;
import com.github.riotopsys.shoppinglist.model.ShoppingList;
import com.github.riotopsys.shoppinglist.model.ShoppingListItem;

import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.CheckBox;
import android.widget.TextView;

public class ShoppingListAdapter extends BaseAdapter {

  private static final String TAG = ShoppingListAdapter.class.getSimpleName();

  private ShoppingList mShoppingList;
  private List<ShoppingListItem> mItems;

  private Comparator<ShoppingListItem> mComparator = new ListItemNameComparator();

  public ShoppingListAdapter(Context ctx, ShoppingList shoppingList) {
    mShoppingList = shoppingList;
    mItems = shoppingList.getItems(ctx);
    Collections.sort(mItems, mComparator);
  }

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

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

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

  @Override
  public View getView(int position, View convertView, ViewGroup parent) {
    if (convertView == null) {
      Context context = parent.getContext();
      LayoutInflater inflater = (LayoutInflater) context.getSystemService(Context.LAYOUT_INFLATER_SERVICE);
      convertView = inflater.inflate(R.layout.shopping_list_item, null);
    }
    ShoppingListItem item = mItems.get(position);

    ((TextView) convertView.findViewById(R.id.item_name)).setText(item.getName());

    CheckBox cb = ((CheckBox) convertView.findViewById(R.id.resolved));
    cb.setChecked(item.getResolved());
    cb.setOnCheckedChangeListener(new CheckedChangeListener(item));
    ((TextView) convertView.findViewById(R.id.item_quantity)).setText(Integer.toString(item.getQuantity()));

    return convertView;
  }

  @Override
  public void notifyDataSetChanged() {
    throw new RuntimeException(TAG + " needs a context!");
  }

  public void notifyDataSetChanged(Context ctx) {
    mItems = mShoppingList.getItems(ctx);
    Collections.sort(mItems, mComparator);
    super.notifyDataSetChanged();
  }

  public ShoppingListItem getListItem(int currentItem) {
    return mItems.get(currentItem);
  }

}

Java Source Code List

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