如图:
文件目录结构:
activity_main.xml
:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout 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:orientation="vertical"
tools:context=".MainActivity">
<TextView
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:background="@color/purple_200"
android:gravity="center"
android:paddingTop="10dp"
android:paddingBottom="10dp"
android:text="购物商城"
android:textSize="20dp"
android:textStyle="bold" />
<ListView
android:id="@+id/lv"
android:layout_width="match_parent"
android:layout_height="match_parent" />
</LinearLayout>
list_item.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:id="@+id/img"
android:layout_width="120dp"
android:layout_height="90dp"
android:layout_centerVertical="true" />
<RelativeLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:layout_marginLeft="10dp"
android:layout_toRightOf="@+id/img">
<TextView
android:id="@+id/title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="桌子"
android:textColor="@color/black"
android:textSize="20sp" />
<TextView
android:id="@+id/lv_price"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/title"
android:text="价格"
android:textSize="20sp" />
<TextView
android:id="@+id/price"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_below="@+id/title"
android:layout_marginLeft="10dp"
android:layout_toRightOf="@+id/lv_price"
android:text="1000"
android:textSize="20sp" />
</RelativeLayout>
</RelativeLayout>
MainActivity.java
:
package com.example.listview;
import androidx.appcompat.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.AdapterView;
import android.widget.BaseAdapter;
import android.widget.ImageView;
import android.widget.ListView;
import android.widget.TextView;
import java.util.ArrayList;
import java.util.List;
public class MainActivity extends AppCompatActivity {
// 创建需要用的数据
private String[] titles = {
"桌子", "苹果", "蛋糕", "线衣", "猕猴桃", "围巾"
};
private String[] prices = {
"1800元", "10元/kg", "300元", "350元", "10元/kg", "280元"
};
private int[] icons = {R.drawable.table, R.drawable.apple, R.drawable.cake, R.drawable.cotton, R.drawable.peach, R.drawable.shawl};
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// LayoutInflater factory = LayoutInflater.from(MainActivity.this);
// View layout = factory.inflate(R.layout.list_item, null);
ListView lv = findViewById(R.id.lv);
MyAdapter myAdapter = new MyAdapter();
lv.setAdapter(myAdapter);
}
class MyAdapter extends BaseAdapter {
public int getCount() {
return titles.length;
}
@Override
public Object getItem(int i) {
return null;
}
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 img = (ImageView) view.findViewById(R.id.img);
title.setText(titles[position]);
price.setText(prices[position]);
img.setBackgroundResource(icons[position]);
return view;
}
}
}
ps:用的时候记者改包名,要不然跑不了,对着红色的包名按下
alt
+enter
(如果你用的是android studio)即可