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/*
* Copyright 2014 The Android Open Source Project
*
* 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.example.android.adaptertransition;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AbsListView;
import android.widget.AdapterView;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;
/**
* This class provides data as Views. It is designed to support both ListView and GridView by
* changing a layout resource file to inflate.
*/
public class MeatAdapter extends BaseAdapter implements AbsListView.OnItemClickListener {
private final LayoutInflater mLayoutInflater;
private final int mResourceId;
/**
* Create a new instance of {@link MeatAdapter}.
*
* @param inflater The layout inflater.
* @param resourceId The resource ID for the layout to be used. The layout should contain an
* ImageView with ID of "meat_image" and a TextView with ID of "meat_title".
*/
public MeatAdapter(LayoutInflater inflater, int resourceId) {
mLayoutInflater = inflater;
mResourceId = resourceId;
}
@Override
public int getCount() {
return Meat.MEATS.length;
}
@Override
public Meat getItem(int position) {
return Meat.MEATS[position];
}
@Override
public long getItemId(int position) {
return Meat.MEATS[position].resourceId;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
final View view;
final ViewHolder holder;
if (null == convertView) {
view = mLayoutInflater.inflate(mResourceId, parent, false);
holder = new ViewHolder();
assert view != null;
holder.image = (ImageView) view.findViewById(R.id.meat_image);
holder.title = (TextView) view.findViewById(R.id.meat_title);
view.setTag(holder);
} else {
view = convertView;
holder = (ViewHolder) view.getTag();
}
Meat meat = getItem(position);
holder.image.setImageResource(meat.resourceId);
holder.title.setText(meat.title);
return view;
}
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
ViewHolder holder = (ViewHolder) view.getTag();
Context context = view.getContext();
if (null != holder && null != holder.title && null != context) {
Toast.makeText(context, context.getString(R.string.item_clicked,
holder.title.getText()), Toast.LENGTH_SHORT).show();
}
}
private static class ViewHolder {
public ImageView image;
public TextView title;
}
}