BenefitGoodsItemAdapter.java

/*
 *    Copyright 2015 TedXiong <xiong-wei@hotmail.com>
 *
 *    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.android.ted.gank.adapter;

import android.content.Context;
import android.support.annotation.LayoutRes;
import android.support.v4.view.ViewCompat;
import android.support.v7.widget.RecyclerView;
import android.text.TextUtils;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;

import com.android.ted.gank.R;
import com.android.ted.gank.db.Image;
import com.android.ted.gank.view.RadioImageView;
import com.bumptech.glide.Glide;

import butterknife.Bind;
import butterknife.ButterKnife;

/***
 *
 */
public abstract class BenefitGoodsItemAdapter extends ArrayRecyclerAdapter<Image, BenefitGoodsItemAdapter.ViewHolder>{

    private final Context context;
    private final LayoutInflater inflater;

    public BenefitGoodsItemAdapter(Context context) {
        this.context = context;
        this.inflater = LayoutInflater.from(context);
        setHasStableIds(true);
    }

    @Override
    public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        return new ViewHolder(R.layout.benefit_goods_item_layout, parent);
    }

    @Override
    public void onBindViewHolder(ViewHolder holder, int position) {
        Image image = get(position);
        holder.imageView.setOriginalSize(image.getWidth(), image.getHeight());
        loadGoodsImage(holder, image);
        ViewCompat.setTransitionName(holder.imageView, image.getUrl());
    }

    @Override
    public long getItemId(int position) {
        return get(position).getUrl().hashCode();
    }

    protected abstract void onItemClick(View v, int position);

    public class ViewHolder extends RecyclerView.ViewHolder {

        @Bind(R.id.image)
        public RadioImageView imageView;

        public ViewHolder(@LayoutRes int resource, ViewGroup parent) {
            super(inflater.inflate(resource, parent, false));
            ButterKnife.bind(this, itemView);
            itemView.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View v) {
                    onItemClick(v, getAdapterPosition());
                }
            });
        }

    }

    private void loadGoodsImage(ViewHolder holder, Image imgGoods) {
        if (null == imgGoods || TextUtils.isEmpty(imgGoods.getUrl())) {
            Glide.with(context)
                    .load(R.drawable.item_default_img)
                    .into(holder.imageView);
        } else {
            Glide.with(context)
                    .load(imgGoods.getUrl())
                    .into(holder.imageView);
        }
    }
}