第六次作业

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

    <ListView
        android:id="@+id/lv"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_alignParentLeft="true"
        android:layout_centerVertical="true" >
    </ListView>

</RelativeLayout>

<?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"
    android:padding="16dp">
    <ImageView
        android:id="@+id/img"
        android:layout_width="50dp"
        android:layout_height="50dp"
        android:layout_centerVertical="true"/>
    <RelativeLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginLeft="10dp"
        android:layout_toRightOf="@+id/lv"
        android:layout_centerVertical="true">

    </RelativeLayout>

    <TextView
        android:id="@+id/name"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerVertical="true"
        android:layout_marginLeft="19dp"
        android:layout_toRightOf="@+id/img"
        android:text="QQ斗地主"
        android:textColor="#000000"
        android:textSize="20sp" />

</RelativeLayout>

package com.example.yz;
import android.os.Bundle;
import android.app.Activity;
import android.view.Menu;
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 ListView mListView;
    private String[] name={"QQ斗地主","京东商城","QQ","天猫","UC浏览器","新浪微博","微信"};
    private int[] img={R.drawable.doudizhu,R.drawable.jd,R.drawable.qq,R.drawable.tianmao,R.drawable.uc,R.drawable.weibo,R.drawable.weixin};
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        mListView=(ListView)findViewById(R.id.lv);
        MyBaseAdapter mAdapter=new MyBaseAdapter();
        mListView.setAdapter(mAdapter);
    }
    class MyBaseAdapter extends BaseAdapter{
        @Override
        public int getCount() {
            return name.length;
        }

        @Override
        public Object getItem(int position) {
            return name[position];
        }

        @Override
        public long getItemId(int position) {
            return position;
        }

        @Override
        public View getView(int position, View convertView, ViewGroup parent) {
            View view=View.inflate(MainActivity.this,R.layout.list_item,null);
            TextView appname=(TextView) view.findViewById(R.id.name);
            ImageView appimg=(ImageView)view.findViewById(R.id.img);
            appname.setText(name[position]);
            appimg.setBackgroundResource(img[position]);
            return view;
        }

    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }

}