• 购物清单


    <?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:id="@+id/textView"
    android:layout_width="match_parent"
    android:layout_height="35dp"
    android:background="#009688"
    android:gravity="center"
    android:text="购物清单"
    android:textColor="#E91E63"
    android:textSize="25sp" />

    <LinearLayout
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_weight="1"
    android:orientation="vertical">

    <ListView
    android:id="@+id/fruit_item"
    android:layout_width="match_parent"
    android:layout_height="match_parent" />
    </LinearLayout>
    </LinearLayout>

    package com.example.shoppinglist;

    import androidx.appcompat.app.AppCompatActivity;

    import android.app.Activity;
    import android.os.Bundle;
    import android.widget.ListView;

    import java.util.ArrayList;
    import java.util.List;

    public class MainActivity extends Activity {
    final List<Fruit> fruitList = new ArrayList<Fruit>();

    @Override
    protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    initFruits();
    FruitAdapte adapter = new FruitAdapte(this,R.layout.item,fruitList);
    ListView lv = (ListView)findViewById(R.id.fruit_item);
    lv.setAdapter(adapter);

    }

    public void initFruits(){
    Fruit orange = new Fruit("橙子","8.5元1斤",R.mipmap.orange);
    fruitList.add(orange);
    Fruit cherry = new Fruit("樱桃","40元1斤",R.mipmap.cherry);
    fruitList.add(cherry);
    Fruit grape = new Fruit("葡萄","5元1斤",R.mipmap.grape);
    fruitList.add(grape);
    Fruit durian = new Fruit("榴莲","50元1斤",R.mipmap.durian);
    fruitList.add(durian);
    Fruit mango = new Fruit("芒果","7元1斤",R.mipmap.mango);
    fruitList.add(mango);
    Fruit litchi = new Fruit("荔枝","15元1斤",R.mipmap.litchi);
    fruitList.add(litchi);
    Fruit guava = new Fruit("石榴","3元1斤",R.mipmap.guava);
    fruitList.add(guava);

    }
    }

    package com.example.shoppinglist;

    public class Fruit {
    private int imageId;
    private String Name,Price;
    public Fruit(String Name, String Price, int imageId) {
    super();
    this.imageId = imageId;
    this.Name = Name;
    this.Price = Price;
    }

    public int getImageId() {
    return imageId;
    }

    public void setImageId(int imageId) {
    this.imageId = imageId;
    }

    public String getName() {
    return Name;
    }

    public void setName(String name) {
    Name = name;
    }

    public String getPrice() {
    return Price;
    }

    public void setPrice(String price) {
    Price = price;
    }

    public Object getItem(int position){
    return position;
    }

    }

    package com.example.shoppinglist;

    import android.content.Context;
    import android.view.LayoutInflater;
    import android.view.View;
    import android.view.ViewGroup;
    import android.widget.ArrayAdapter;
    import android.widget.ImageView;
    import android.widget.TextView;

    import java.util.List;

    public class FruitAdapte extends ArrayAdapter {
    int resourceId;
    public FruitAdapte(Context context, int resource, List<Fruit> objects){
    super(context, resource,objects);
    resourceId=resource;
    }

    @Override
    public View getView(int position, View convertView, ViewGroup parent){
    Fruit fruit = (Fruit)getItem(position);
    View view = LayoutInflater.from(getContext()).inflate(resourceId,null);
    ImageView iv = (ImageView)view.findViewById(R.id.imageView);
    TextView tv = (TextView)view.findViewById(R.id.textName);
    TextView pv = (TextView)view.findViewById(R.id.textPrice);
    iv.setImageResource(fruit.getImageId());
    tv.setText((CharSequence) fruit.getName());
    pv.setText((CharSequence)fruit.getPrice());

    return view;
    }

    }

    <?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"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >

    <ImageView
    android:id="@+id/imageView"
    android:layout_width="100dp"
    android:layout_height="100dp"
    app:srcCompat="@mipmap/grape" />

    <LinearLayout
    android:layout_width="match_parent"
    android:layout_height="100dp"
    android:gravity="left|center_vertical"
    android:orientation="vertical"
    android:scrollbarSize="8dp">

    <TextView
    android:id="@+id/textName"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="葡萄" />

    <TextView
    android:id="@+id/textPrice"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="价格:5元1斤"
    android:textSize="16sp" />
    </LinearLayout>

    </LinearLayout>

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  • 原文地址:https://www.cnblogs.com/sigure0428/p/14163839.html
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