item.list.xml(自定义item布局样式)

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/activity_item_list"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:gravity="center_vertical"
    android:orientation="horizontal"
    android:padding="15dp"
    tools:context="com.example.jump.ItemListActivity">

    <ImageView
        android:id="@+id/iv_img"
        android:layout_width="50dp"
        android:layout_height="50dp"
        android:src="@drawable/changan"
        android:scaleType="centerCrop"/>
    <TextView
        android:id="@+id/name"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="长安"
        android:layout_marginLeft="15dp"
        android:textSize="30sp"/>

</LinearLayout>

新建实体类entity，描述自定义item布局中的属性，调用get和set方法

package com.example.entity;

/**
 * Created by Administrator on 2017/2/16.
 */

public class CarCompany {
    private String company;
    private int img;

    public String getCompany() {
        return company;
    }

    public int getImg() {
        return img;
    }

    public void setImg(int img) {
        this.img = img;
    }

    public void setCompany(String company) {
        this.company = company;
    }
}

在activity中实例化listview控件，创建数据源（构建演示数据 List<？>）

package com.example.jump;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.ArrayAdapter;
import android.widget.ListView;

import com.example.adapter.MyAdapter;
import com.example.entity.CarCompany;

import java.util.ArrayList;
import java.util.List;

public class ArrayAdapterActivity extends AppCompatActivity {
    private ListView lv;
    private List<String> str_list;
    private String[] names=new String[]{"长安", "沃尔沃", "大众", "宾利", "奔驰"};
    private int[] ids=new int[]{R.drawable.changan,R.drawable.vol,R.drawable.das,R.drawable.bl,R.drawable.benz};

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_array_adapter);
        lv= (ListView) findViewById(R.id.lv_list);
//        intiArrayList();
        intiCustomAdapter();

    }
    private void intiArrayList(){
        //数据构建完成
        str_list=new ArrayList<String>();
        str_list.add("Android");
        str_list.add("IOS");
        str_list.add("WindowsPhone");
        //Adapter
        ArrayAdapter adapter=new ArrayAdapter(this,android.R.layout.simple_list_item_1,str_list);
        //将适配器设置给listview
        lv.setAdapter(adapter);
    }
    //新建list存放carcompany数据
    private void intiCustomAdapter(){
        List<CarCompany> list=new ArrayList<CarCompany>();
        for (int i = 0; i < names.length; i++) {
            CarCompany company=new CarCompany();
            company.setImg(ids[i]);
            company.setCompany(names[i]);
            list.add(company);
        }
        MyAdapter myadapter=new MyAdapter(list,this);
        lv.setAdapter(myadapter);
    }
}

新建Adapter（自定义）

package com.example.adapter;

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.entity.CarCompany;
import com.example.jump.R;

import java.util.List;

/**
 * Created by Administrator on 2017/2/16.
 */

public class MyAdapter extends BaseAdapter {
    private List<CarCompany> list;//数据源
    private Context context;//上下文对象
    private LayoutInflater inflater;//布局加载器

    //有参的构造函数，为数据源，上下文对象复制，同时实例化布局加载器
    public MyAdapter(List<CarCompany> list,Context context) {
        this.list=list;
        this.context=context;
        inflater=LayoutInflater.from(context);
    }

    //有多少条数据，需要创建多少个item布局
    @Override
    public int getCount() {
        return list.size();
    }
    //返回position对应位置的数据
    @Override
    public Object getItem(int position) {
        return list.get(position);
    }
    //返回position对应位置item的id
    @Override
    public long getItemId(int position) {
        return position;
    }

    /**
     * 具体定义加载item布局，并将数据显示到item布局上的方法。
     * @param position
     * @param convertView
     * @param parent
     * @return
     */
    @Override
    public View getView(int position, View convertView, ViewGroup parent) {
        //加载item布局 将xml布局加载到内存中，形成一个view
        View view=inflater.inflate(R.layout.activity_item_list,null);
        //实例化item布局上的控件
        ImageView iv= (ImageView) view.findViewById(R.id.iv_img);
        TextView tv= (TextView) view.findViewById(R.id.name);
        //往控件上显示数据
        //获取position对应位置的数据
        CarCompany company= (CarCompany) getItem(position);
        iv.setImageResource(company.getImg());
        tv.setText(company.getCompany());
        return view;
    }
}

在activity中实例化adapter,设置给listview

/新建list存放carcompany数据
    private void intiCustomAdapter(){
        List<CarCompany> list=new ArrayList<CarCompany>();
        for (int i = 0; i < names.length; i++) {
            CarCompany company=new CarCompany();
            company.setImg(ids[i]);
            company.setCompany(names[i]);
            list.add(company);
        }
        MyAdapter myadapter=new MyAdapter(list,this);
        lv.setAdapter(myadapter);
    }