• 第六次作业


    package com.example.android;
    
    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.tmall,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;
        }
    
    }
    <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>
    <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/iv"
            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>

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  • 原文地址:https://www.cnblogs.com/zhaoqibo1701121/p/11627646.html
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