目录
用于高校Android studio课程课后作业实例,如无必要,请勿抄袭
实现了商品列表化的效果,包含了六个商品,需要添加商品请自行研究
activity_main.xml
<?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="vertical">
<TextView
android:layout_width="match_parent"
android:layout_height="45dp"
android:text="水果商城"
android:textSize="18sp"
android:textColor="#FFFFFF"
android:background="#FA3C78"
android:gravity="center" />
<ListView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:id="@+id/lv"/>
</LinearLayout>
list_view_header.xml
<?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:layout_width="120dp"
android:layout_height="90dp"
android:id="@+id/iv"
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">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/title"
android:text="桌子"
android:textSize="20sp"
android:textColor="#000000" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/tv_price"
android:text="价格:"
android:textSize="20sp"
android:layout_marginTop="10dp"
android:layout_below="@id/title"
android:textColor="#FF8F03" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:id="@+id/price"
android:text="1000"
android:textSize="20sp"
android:layout_marginTop="10dp"
android:layout_below="@id/title"
android:layout_toRightOf="@id/tv_price"
android:textColor="#FF8F03" />
</RelativeLayout>
</RelativeLayout>
mainactivity.xml
package com.example.myapplication;
import android.app.Activity;
import android.os.Bundle;
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 = {"苹果","香蕉","梨子","火龙果","猕猴桃","桃子"};
private String[] prices = {"10元/kg","8元/kg","7元/kg","15元/kg","10元/kg","11元/kg"};
private int[] icons = {R.drawable.pingguo,R.drawable.xiangjiao,R.drawable.lizi,R.drawable.huolongguo,R.drawable.mihoutoa,R.drawable.taozi};
protected void onCreate(Bundle saveInstanceState){
super.onCreate(saveInstanceState);
setContentView(R.layout.activity_main);
ListView mListView = (ListView) findViewById(R.id.lv);
MyBaseAdaPter mAdapter = new MyBaseAdaPter();
mListView.setAdapter(mAdapter);
}
class MyBaseAdaPter extends BaseAdapter{
@Override
public int getCount( ){
return titles.length;
}
@Override
public Object getItem(int position){
return titles[position];
}
@Override
public long getItemId(int position){
return position;
}
@Override
public View getView(int position,View convertView,ViewGroup parent){
ViewHolder holder;
if(convertView == null){
convertView = View.inflate( MainActivity.this,R.layout.list_item,null);
holder= new ViewHolder();
holder.title=(TextView) convertView.findViewById(R.id.title);
holder.price=(TextView) convertView.findViewById(R.id.price);
holder.iv=(ImageView) convertView.findViewById(R.id.iv);
convertView.setTag(holder);
}
else {
holder = (ViewHolder) convertView.getTag();
}
holder.title.setText(titles[position]);
holder.price.setText(prices[position]);
holder.iv.setBackgroundResource(icons[position]);
return convertView;
}
}
static class ViewHolder{
TextView title;
TextView price;
ImageView iv;
}
}
修改后,运行界面
同学们,交了学费一定要好好学习啊,抄来抄去终究害己
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注意:直接复制代码使用时 ,请添加自己的背景图片和修改文件名,其他报错请留言
如有需要定制微信小程序,海报设计,logo设计的,请添加小哥VX:Doi000101,备注来意