package com.example.cycle_toolbar_drawer.BaseAdapter;

import android.content.Context;

import android.view.LayoutInflater;

import android.view.View;

import android.view.ViewGroup;

import android.widget.BaseAdapter;

import android.widget.ImageView;

import android.widget.TextView;

import com.example.cycle_toolbar_drawer.R;

import java.util.ArrayList;

import java.util.List;

import java.util.zip.Inflater;

/**

 * Created by Administrator on 2016/5/26 0026.

 *添加数据的baseAdapter实现类

 */

public class BaseAdapterDAO extends BaseAdapter {

    //通过构造方法获取数据源中的数据,与适配器关联起来

    private List<News> mNews;

    private LayoutInflater mLayoutInflater;

    public BaseAdapterDAO(Context context,List<News> news){

        mNews = news;

        //context要使用当前的Adapter的界面对象mLayoutInflater布局装载器对象

        mLayoutInflater = LayoutInflater.from(context);

    }

    @Override

    public int getCount() {

        return mNews.size();

    }

    @Override

    public Object getItem(int i) {

        return mNews.get(i);

    }

    @Override

    public long getItemId(int i) {

        return i;

    }

    @Override

    public View getView(int i, View view, ViewGroup viewGroup) {

        //2- 定义ViewHolder

        ViewHolder viewHolder;

        if (view == null) {

            //3- 实例化ViewHolder 并且适配ViewHolder中的三个参数

            viewHolder = new ViewHolder();

            view = mLayoutInflater.inflate(R.layout.content_listview_linear, null);

            viewHolder.ViewHolder_imageView = (ImageView) view.findViewById(R.id.content_listView_imageView);

            viewHolder.ViewHolder_title = (TextView) view.findViewById(R.id.content_listView_Title);

            viewHolder.ViewHolder_content = (TextView) view.findViewById(R.id.content_listView_Content);

            //4- 通过setTag将ViewHolder与view相关联

            view.setTag(viewHolder);

        }else {

            //5- 当不为空的时候直接通过getTag方法找到控件

            viewHolder = (ViewHolder) view.getTag();

        }

        News newsItem = mNews.get(i);

        viewHolder.ViewHolder_imageView.setImageResource(newsItem.getItem_image_Resource_id());

        viewHolder.ViewHolder_title.setText(newsItem.getItem_Title());

        viewHolder.ViewHolder_content.setText(newsItem.getItem_Content());

        return view;

            /* 普通方式

            ImageView content_listView_imageView = (ImageView) view.findViewById(R.id.content_listView_imageView);

            TextView content_listView_Title = (TextView) view.findViewById(R.id.content_listView_Title);

            TextView content_listView_Content = (TextView) view.findViewById(R.id.content_listView_Content);

            News newsItem = mNews.get(i);

            content_listView_imageView.setImageResource(newsItem.getItem_image_Resource_id());

            content_listView_Title.setText(newsItem.getItem_Title());

            content_listView_Content.setText(newsItem.getItem_Content());

            return view;*/

    }

    // 文艺式 ——避免通过findViewById找内容而浪费资源和时间

    //1- 创建内部类ViewHolder

    class ViewHolder{

        public ImageView ViewHolder_imageView;

        public TextView ViewHolder_title;

        public TextView ViewHolder_content;

    }

}