Android基础TOP7_1:ListView制作列表

结构：

Activity:

activity_main:

 <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:paddingBottom="@dimen/activity_vertical_margin"
     android:paddingLeft="@dimen/activity_horizontal_margin"
     android:paddingRight="@dimen/activity_horizontal_margin"
     android:paddingTop="@dimen/activity_vertical_margin"
     tools:context="com.example.top7_1.MainActivity" >

 <ListView
     android:id="@+id/lv"
     android:layout_width="fill_parent"
     android:layout_height="wrap_content">

 </ListView>

 </RelativeLayout>

mylayout:

 <?xml version="1.0" encoding="utf-8"?>
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:orientation="horizontal"
         >
     <ImageView
         android:id="@+id/img"
         android:layout_width="50dp"
         android:layout_height="50dp"
         android:src="@drawable/ic_launcher"
         android:layout_margin="10dp"
         />
 <LinearLayout
     android:id="@+id/ll"
     android:layout_height="wrap_content"
     android:layout_width="wrap_content"
     android:orientation="vertical"
     >
     <TextView
         android:id="@+id/bt"
         android:layout_width="fill_parent"
         android:layout_height="wrap_content"
         android:text="标题"
         android:textSize="24dp"
         android:textColor="#7B68EE"
         android:layout_marginLeft="10dp"
         android:layout_marginTop="5dp"        />
      <TextView
         android:id="@+id/nw"
         android:layout_width="fill_parent"
         android:layout_height="wrap_content"
         android:text="内容"
         android:textSize="16dp"
         android:textColor="#DAA520"
         android:layout_marginLeft="10dp"
              />
 </LinearLayout>
 </LinearLayout>

JAVA:

 package com.example.top7_1;

 import android.app.Activity;
 import android.content.Context;
 import android.os.Bundle;
 import android.view.LayoutInflater;
 import android.view.Menu;
 import android.view.MenuItem;
 import android.view.View;
 import android.view.ViewGroup;
 import android.widget.BaseAdapter;
 import android.widget.ImageView;
 import android.widget.ListView;
 import android.widget.TextView;

 public class MainActivity extends Activity {
 ListView lv;
 int[] price=new int[]{,,,};
 int[] resids=new int[]{R.drawable.ic_launcher,R.drawable.ic_launcher
         ,R.drawable.ic_launcher,R.drawable.ic_launcher};
 String[] balls=new String []{"","","",""};
 String[] engNames={"","","",""};
 MyAdapter adapter=null;
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
         lv=(ListView) findViewById(R.id.lv);
     adapter=new MyAdapter(this);
     lv.setAdapter(adapter);
     }
     public class MyAdapter extends BaseAdapter{
         private LayoutInflater lif;

         public MyAdapter(Context c) {
             // TODO Auto-generated constructor stub
          lif=LayoutInflater.from(c);
         }

         @Override
         public int getCount() {
             // TODO Auto-generated method stub
             return balls.length;
         }

         @Override
         public Object getItem(int position) {
             // TODO Auto-generated method stub
             return balls[position];
         }

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

         @Override
         public View getView(int position, View convertView, ViewGroup parent) {
             // TODO Auto-generated method stub
             convertView=lif.inflate(R.layout.mylayout,null);
             ImageView ImgLogo=(ImageView) convertView.findViewById(R.id.img);
             TextView textName=(TextView) convertView.findViewById(R.id.bt);
             TextView textengName=(TextView) convertView.findViewById(R.id.nw);
             ImgLogo.setImageResource(resids[position]);
             textName.setText(balls[position]);
             textengName.setText(engNames[position]);
             return convertView;
         }

     }
 }