1. 程式人生 > 實用技巧 >購物商城

購物商城

activtiy_main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation
="vertical" > <TextView android:layout_width="wrap_content" android:layout_height="45dp" android:text="購物商城" android:textSize="28dp" android:textColor="#ffffff" android:background="#ff6f03" android:layout_gravity="center"/> <ListView android:id
="@+id/lv" android:layout_width="match_parent" android:layout_height="wrap_content"/> </LinearLayout>

list_itme.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:app="http://schemas.android.com/apk/res-auto"
    xmlns:tools
="http://schemas.android.com/tools" android:layout_width="match_parent" android:layout_height="match_parent" android:padding="16dp" > <ImageView android:id="@+id/iv" android:layout_width="120dp" android:layout_height="90dp" android:layout_centerVertical="true" /> <RelativeLayout android:layout_toRightOf="@+id/iv" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_marginLeft="10dp" android:layout_centerVertical="true" > <TextView android:id="@+id/title" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="桌子" android:textSize="20sp" android:textColor="#000000"/> <TextView android:id="@+id/tv_price" android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="價格" android:textSize="20sp" android:layout_marginTop="10dp" android:layout_below="@+id/title" android:textColor="#00F00F"/> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:id="@+id/price" android:text="1000" android:textSize="20sp" android:layout_below="@+id/title" android:layout_toRightOf="@+id/tv_price" android:textColor="#F00003" android:layout_marginTop="10dp" /> </RelativeLayout> </RelativeLayout>

MainActivtiy.java

package com.example.listview;
 
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 ListView mListView;
    private String[] titles ={"蘋果","香蕉","橘子","水蜜桃"};
    private String[] prices ={"11元","22元","33元","44元"};
    private  int[] icons ={R.drawable.q,R.drawable.w,R.drawable.e,R.drawable.r};
 
    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 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) {
            View view = View.inflate(MainActivity.this,R.layout.list_item,null);
            TextView title =(TextView) view.findViewById(R.id.title);
            TextView price = (TextView) view.findViewById(R.id.price);
            ImageView iv = (ImageView) view.findViewById(R.id.iv);
            title.setText(titles[position]);
            price.setText(prices[position]);
            iv.setBackgroundResource(icons[position]);
            return view;
        }
    }
 
}