android的liveview装载数据

设置布局

<?xml version="1.0" encoding="utf-8"?>

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"

    android:layout_width="match_parent"

    android:layout_height="match_parent" >

    

    <TextView

        android:id="@+id/itemsTitle"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_gravity="center_vertical"

        android:paddingLeft="10dip"

        android:paddingTop="5dip"

        android:textColor="@color/gray_black"

        android:textSize="18dip" />

    <TextView

        android:id="@+id/itemsText"

        android:layout_width="wrap_content"

        android:layout_height="wrap_content"

        android:layout_below="@+id/itemsTitle"

        android:gravity="left"

        android:paddingBottom="2dip"

        android:paddingLeft="10dip"

        android:textColor="@color/gray"

        android:textSize="15dip" />



</RelativeLayout>

　从MAP的集合取数据

 

		//获取数据

		Intent intent = getIntent();

		Bundle bundle = intent.getExtras();

		SerializableMaplist SerializableMaplist = (SerializableMaplist) bundle.get("listdata");

		maplist =SerializableMaplist.getMap();  

		//填充数据

		ListView mListView = (ListView)findViewById(R.id.listview);

		//使用自定义的Adapter

		MyListViewAdapter myListViewAdapter = new MyListViewAdapter(this, maplist,R.layout.list_items,

						new String[] {"rqsj","s","f" ,"JLR"}, 

						new int[] {R.id.itemsTitle,R.id.itemsText });

			 mListView.setAdapter(myListViewAdapter);

　　自定义类MyListViewAdapter

package com.xjx.adapter;



import java.util.List;

import java.util.Map;



import android.content.Context;

import android.view.LayoutInflater;

import android.view.View;

import android.view.ViewGroup;

import android.widget.BaseAdapter;

import android.widget.TextView;



/**

 * Copyright (c) 2011 All rights reserved 

 * 名称：MyListViewAdapter 

 * 描述：ListView自定义Adapter例子

 * @author zhaoqp

 * @date 2011-11-8

 * @version

 */

public class MyListViewAdapter extends BaseAdapter{

  

	private Context mContext;

    //单行的布局

    private int mResource;

    //列表展现的数据

    private List<? extends Map<String, ?>> mData;

    //Map中的key

    private String[] mFrom;

    //view的id

    private int[] mTo;

    

   /**

    * 构造方法

    * @param context

    * @param data 列表展现的数据

    * @param resource 单行的布局

    * @param from Map中的key

    * @param to view的id

    */

    public MyListViewAdapter(Context context, List<? extends Map<String, ?>> data,

            int resource, String[] from, int[] to){

    	 mContext = context;

    	 mData = data;

         mResource = resource;

         mFrom = from;

         mTo = to;

    }   

    

    @Override

    public int getCount() {

        return mData.size();

    }

    

    @Override

    public Object getItem(int position) {

        return mData.get(position);

    }



    @Override

    public long getItemId(int position){

      return position;

    }

    

    @Override

    public View getView(int position, View convertView, ViewGroup parent){

    	  final ViewHolder holder;

          if(convertView == null){

	          //使用自定义的list_items作为Layout

	          convertView = LayoutInflater.from(mContext).inflate(mResource, parent, false);

	          //使用减少findView的次数

			  holder = new ViewHolder();

			  holder.itemsTitle = ((TextView) convertView.findViewById(mTo[0]));

			  holder.itemsText = ((TextView) convertView.findViewById(mTo[1]));

			  //设置标记

			  convertView.setTag(holder);

          }else{

        	  holder = (ViewHolder) convertView.getTag();

          }

	      //设置数据

          final Map<String, ?> dataSet = mData.get(position);

          if (dataSet == null) {

              return null;

          }

          //获取该行数据

          final Object data1 = dataSet.get(mFrom[0]);

          final Object data2 = dataSet.get(mFrom[1]);

          final Object data3 = dataSet.get(mFrom[2]);

          final Object data4 = dataSet.get(mFrom[3]);

          //设置数据到View

          holder.itemsTitle.setText(data1.toString()+"  "+data2.toString()+":"+data3.toString());

          holder.itemsText.setText(data4.toString());

          return convertView;

    }

    

    /**

	 * ViewHolder类

	 */

	static class ViewHolder {

		TextView itemsTitle;

		TextView itemsText;

	}

}