作业6

 

 

package com.example.sdfs;

import android.app.Activity;

import android.os.Bundle;
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 {
    private String[] titles = { "京东商城", "qq", "qq斗地主", "新浪微博", "天猫", "uc" ,"微信"};
    private int[] pic = { R.drawable.c, R.drawable.f,
            R.drawable.b, R.drawable.e, R.drawable.g,
            R.drawable.a,R.drawable.d};
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        // 获取Listview
                ListView lv = (ListView) findViewById(R.id.listView1);
                
                // 创建adapter对象
                Myadapter md = new Myadapter();
                
                lv.setAdapter(md);
            }
    class Myadapter extends BaseAdapter {

        @Override
        public int getCount() {
            // TODO 自动生成的方法存根
            return titles.length;
        }

        @Override
        public Object getItem(int position) {
            // TODO 自动生成的方法存根
            return titles[position];
        }

        @Override
        public long getItemId(int position) {
            // TODO 自动生成的方法存根
            return position;
        }

        @Override
        public View getView(int position, View convertView, ViewGroup parent) {
            // TODO 自动生成的方法存根
            //加载列表项的布局文件
            View view=View.inflate(MainActivity.this, R.layout.list_item, null);
            TextView tv1=(TextView)view.findViewById(R.id.name);
            
            ImageView iv=(ImageView)view.findViewById(R.id.iv);
            
            tv1.setText(titles[position]);
            
            iv.setBackgroundResource(pic[position]);
            
            return view;
        }

    }

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:gravity="left"
    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.sdfs.MainActivity" >

    <ListView
        android:id="@+id/listView1"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_alignParentLeft="true"
        android:layout_alignParentTop="true" >
    </ListView>

</RelativeLayout>