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[]{100,300,400,500};
int[] resids=new int[]{R.drawable.ic_launcher,R.drawable.ic_launcher
        ,R.drawable.ic_launcher,R.drawable.ic_launcher};
String[] balls=new String []{"1","2","3","4"};
String[] engNames={"1","2","3","4"};
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;
        }
        
        
    }
}