package com.jmi.Dddtext;

import java.io.Serializable;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Set;







import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.TextView;

public class Dian extends Activity {
	 Set<GreenSelected> greenselected=new HashSet<GreenSelected>();//存放已经选择的菜

	String[] greenname={"东坡肉","霸王蟹","波士顿虾","鳕鱼","神户牛肉"};
	String[] greenprice={"20.00","300.00","200.00","100.00","200.00"};
	int[] greenimgs=new int[]{R.drawable.i1,R.drawable.i2,R.drawable.i3,R.drawable.i4,R.drawable.i5};
	ListView listview;
	//生成动态数组，存放数据   
    ArrayList<HashMap<String, Object>> mylist = 
    		new ArrayList<HashMap<String, Object>>();

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.diana);
       
        listview=(ListView) findViewById(R.id.listView1);
        getData();//调用mydata方法，将mylist写入
        //新建一个适配器
        MyAdapter myadapter =new MyAdapter(this);
        //listview控件装载适配器
        listview.setAdapter(myadapter);
    }
  //getData方法的功能：将数据存放入mylist
  	private void getData(){
  		for(int i=0;i<greenname.length;i++){
  			HashMap<String, Object> map = new HashMap<String, Object>();  
              map.put("ItemName", greenname[i]);  
              map.put("ItemPrice", greenprice[i]);  
              map.put("ItemImage", greenimgs[i]);  
              mylist.add(map);  
  		}
  	}
  //编写特定的适配器类，必须继承已有的基本适配器类
class MyAdapter extends BaseAdapter{
   private LayoutInflater mInflater;//获得视图
 //与上下文 即当前的活动关联起来
   public MyAdapter(Context context){
	   this.mInflater=LayoutInflater.from(context);
   }
	@Override
	public int getCount() {
		// TODO Auto-generated method stub
		
		return mylist.size();//size方法是干什么的
	}

	@Override
	public Object getItem(int arg0) {
		// TODO Auto-generated method stub
		return null;
	}

	@Override
	public long getItemId(int position) {
		// TODO Auto-generated method stub
		return 0;
	}

	@Override
	public View getView(final int position, View convertView, ViewGroup parent) {
		// TODO Auto-generated method stub
		ViewHolder holder =null;//准备存放一行的四个控件
		if (convertView == null) { 		          
	        holder=new ViewHolder();  		          
	        //可以理解为从vlist获取view 之后把view返回给ListView 		          
	        convertView = mInflater.inflate(R.layout.mylistitem, null); 
	        holder.image = (ImageView)convertView.findViewById(R.id.imageView1); 
	        holder.name = (TextView)convertView.findViewById(R.id.textView1); 
	        holder.price = (TextView)convertView.findViewById(R.id.textView2); 
	        holder.viewBtn = (Button)convertView.findViewById(R.id.button1); 
	        convertView.setTag(holder);        
	      }else {        
	        holder = (ViewHolder)convertView.getTag(); 
	      } 
		holder.image.setImageResource(greenimgs[position]);
	      holder.name.setText((String)mylist.get(position).get("ItemName")); 
	      holder.price.setText((String)mylist.get(position).get("ItemPrice")); 
	      holder.viewBtn.setTag(position); 
	      //给Button添加单击事件 添加Button之后ListView将失去焦点 
	      //需要的直接把Button的焦点去掉  android:focusable="false"
	      holder.viewBtn.setOnClickListener(new View.OnClickListener() {
	      
			@Override
			public void onClick(View v) {
				// TODO Auto-generated method stub
				GreenSelected newgreen = new GreenSelected();
		    	  newgreen.name = mylist.get(position).get("ItemName").toString();
		    	  newgreen.price = mylist.get(position).get("ItemPrice").toString();
					newgreen.image = greenimgs[position];
					greenselected.add(newgreen);//将选中的菜单序号存入set中
					
                   
					Log.i("选中："+mylist.get(position).get("ItemName").toString(),mylist.get(position).get("ItemPrice").toString());
					//在日志中显示所有已经选中的菜
					for(GreenSelected it:greenselected){
						Log.i("已经选中的："+it.name,"该菜价格："+it.price);
					}}});

      return convertView;
	}
	
}
//内部类，与每一行数据对应
	class ViewHolder{
		public ImageView image;//菜的图片
	    public TextView name; //菜名
	    public TextView price; //菜的单价
	    public Button viewBtn; //+号按钮
	}

	public void toList (View theButton){
       	Intent intent = new Intent(Dian.this,ListActivity.class);
       	intent.putExtra("list",(Serializable)greenselected);
         	 startActivity(intent);
  
}  
}