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AdapterTransition / src / com.example.android.adaptertransition /

MeatAdapter.java

       
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        /*
       
       
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        * Copyright 2014 The Android Open Source Project
       
       
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        *
       
       
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        * Licensed under the Apache License, Version 2.0 (the "License");
       
       
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        * you may not use this file except in compliance with the License.
       
       
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        * You may obtain a copy of the License at
       
       
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        *
       
       
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        *     http://www.apache.org/licenses/LICENSE-2.0
       
       
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        *
       
       
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        * Unless required by applicable law or agreed to in writing, software
       
       
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        * distributed under the License is distributed on an "AS IS" BASIS,
       
       
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        * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
       
       
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        * See the License for the specific language governing permissions and
       
       
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        * limitations under the License.
       
       
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        */
       
       
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        package com.example.android.adaptertransition;
       
       
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        import android.content.Context;
       
       
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        import android.view.LayoutInflater;
       
       
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        import android.view.View;
       
       
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        import android.view.ViewGroup;
       
       
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        import android.widget.AbsListView;
       
       
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        import android.widget.AdapterView;
       
       
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        import android.widget.BaseAdapter;
       
       
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        import android.widget.ImageView;
       
       
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        import android.widget.TextView;
       
       
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        import android.widget.Toast;
       
       
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        /**
       
       
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        * This class provides data as Views. It is designed to support both ListView and GridView by
       
       
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        * changing a layout resource file to inflate.
       
       
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        */
       
       
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        public class MeatAdapter extends BaseAdapter implements AbsListView.OnItemClickListener {
       
       
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        private final LayoutInflater mLayoutInflater;
       
       
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        private final int mResourceId;
       
       
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        /**
       
       
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        * Create a new instance of {@link MeatAdapter}.
       
       
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        *
       
       
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        * @param inflater   The layout inflater.
       
       
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        * @param resourceId The resource ID for the layout to be used. The layout should contain an
       
       
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        *                   ImageView with ID of "meat_image" and a TextView with ID of "meat_title".
       
       
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        */
       
       
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        public MeatAdapter(LayoutInflater inflater, int resourceId) {
       
       
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        mLayoutInflater = inflater;
       
       
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        mResourceId = resourceId;
       
       
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        }
       
       
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        @Override
       
       
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        public int getCount() {
       
       
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        return Meat.MEATS.length;
       
       
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        }
       
       
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        @Override
       
       
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        public Meat getItem(int position) {
       
       
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        return Meat.MEATS[position];
       
       
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        }
       
       
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        @Override
       
       
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        public long getItemId(int position) {
       
       
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        return Meat.MEATS[position].resourceId;
       
       
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        }
       
       
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        @Override
       
       
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        public View getView(int position, View convertView, ViewGroup parent) {
       
       
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        final View view;
       
       
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        final ViewHolder holder;
       
       
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        if (null == convertView) {
       
       
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        view = mLayoutInflater.inflate(mResourceId, parent, false);
       
       
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        holder = new ViewHolder();
       
       
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        assert view != null;
       
       
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        holder.image = (ImageView) view.findViewById(R.id.meat_image);
       
       
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        holder.title = (TextView) view.findViewById(R.id.meat_title);
       
       
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        view.setTag(holder);
       
       
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        } else {
       
       
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        view = convertView;
       
       
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        holder = (ViewHolder) view.getTag();
       
       
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        }
       
       
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        Meat meat = getItem(position);
       
       
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        holder.image.setImageResource(meat.resourceId);
       
       
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        holder.title.setText(meat.title);
       
       
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        return view;
       
       
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        }
       
       
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        @Override
       
       
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        public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
       
       
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        ViewHolder holder = (ViewHolder) view.getTag();
       
       
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        Context context = view.getContext();
       
       
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        if (null != holder && null != holder.title && null != context) {
       
       
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        Toast.makeText(context, context.getString(R.string.item_clicked,
       
       
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        holder.title.getText()), Toast.LENGTH_SHORT).show();
       
       
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        }
       
       
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        }
       
       
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        private static class ViewHolder {
       
       
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        public ImageView image;
       
       
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        public TextView title;
       
       
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        }
       
       
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        }