9.30作业

<?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"
    tools:context=".MainActivity">
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent">
        <ListView
            android:id="@+id/lv1"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content">
        </ListView>
    </LinearLayout>
</RelativeLayout>

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="horizontal" android:layout_width="match_parent"
    android:layout_height="match_parent">

    <ImageView
        android:id="@+id/iv"
        android:layout_width="190dp"
        android:layout_height="170dp"
        >

    </ImageView>


    <TextView
        android:id="@+id/tv1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_margin="60dp"
        android:text="1123">

    </TextView>


</LinearLayout>

package com.example.myapplication;

public class Fruit {
    private String name;  
    private int imageId;  
  
    public Fruit(String name, int imageId) {  
        this.name = name;  
        this.imageId = imageId;  
    }  
  
    public String getName() {  
        return name;  
    }  
  
    public int getImageId() {  
        return imageId;  
    }  

}

package com.example.myapplication;

import java.util.List;

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;

public class FruitAdapter extends ArrayAdapter {
     private final int resourceId;  
      
        public FruitAdapter(Context context, int textViewResourceId, List<Fruit> objects) {  
            super(context, textViewResourceId, objects);  
            resourceId = textViewResourceId;  
        }  
        @Override  
        public View getView(int position, View convertView, ViewGroup parent) {  
            Fruit fruit = (Fruit) getItem(position);
            View view = LayoutInflater.from(getContext()).inflate(resourceId, null);
            ImageView fruitImage = (ImageView) view.findViewById(R.id.iv);
            TextView fruitName = (TextView) view.findViewById(R.id.tv1);
            fruitImage.setImageResource(fruit.getImageId());
            fruitName.setText(fruit.getName());
            return view;
        }  
    

}

package com.example.myapplication;

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

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

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

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        
        initFruits();
        FruitAdapter adapter = new FruitAdapter(MainActivity.this, R.layout.fruit_item, fruitList);  
        ListView listView = (ListView) findViewById(R.id.lv1);
        listView.setAdapter(adapter);  
    }


    private void initFruits(){
         Fruit apple = new Fruit("Apple", R.drawable.tu);
         fruitList.add(apple);
         Fruit banana = new Fruit("Banana",  R.drawable.tu);
         fruitList.add(banana);
         Fruit orange = new Fruit("Orange",R.drawable.tu);
         fruitList.add(orange);
         Fruit watermelon = new Fruit("Watermelon", R.drawable.tu);
         fruitList.add(watermelon);
         Fruit pear = new Fruit("Pear", R.drawable.tu);
         fruitList.add(pear);
         Fruit grape = new Fruit("Grape", R.drawable.tu);
         fruitList.add(grape);
         Fruit pineapple = new Fruit("Pineapple", R.drawable.tu);
         fruitList.add(pineapple);
         Fruit strawberry = new Fruit("Strawberry", R.drawable.tu);
         fruitList.add(strawberry);
         Fruit cherry = new Fruit("Cherry", R.drawable.tu);
         fruitList.add(cherry);
         Fruit mango = new Fruit("Mango", R.drawable.tu);
         fruitList.add(mango);

    
    }


   
    
}