Android滚动菜单ListView实例详解

本文实例为大家分享了android使用listview实现滚动菜单的具体代码，供大家参考，具体内容如下

说明：滚动菜单listview及点击事件

代码结构：

1、创建一个list展示模型

app\src\main\res\layout\fruit_item.xml

<?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/fruit_image"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"/>
    <textview
        android:id="@+id/fruit_name"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:gravity="center_vertical"
        android:layout_marginleft="10dp"/>
 
</linearlayout>

2、主界面引用一下

app\src\main\res\layout\activity_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"
    tools:context=".mainactivity">
 
    <listview
        android:id="@+id/list_view"
        android:layout_width="match_parent"
        android:layout_height="match_parent" />
 
</linearlayout>

3、创建fruit类

app\src\main\java\com\example\listviewtest\fruit.java

package com.example.listviewtest;
 
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;
    }
}

4、创建适配器

app\src\main\java\com\example\listviewtest\fruitadapter.java

package com.example.listviewtest;
 
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 fruitadapter extends arrayadapter<fruit> {
    private int resourceid;
    public fruitadapter(context context,
                        int textviewresourceid,
                        list<fruit> object){
        super(context,textviewresourceid,object);
        resourceid = textviewresourceid;
    }
    public view getview(int position, view converview, viewgroup parent){
        fruit fruit = getitem(position);
        view view = layoutinflater.from(getcontext()).inflate(resourceid,parent,false);
        imageview fruitimage = (imageview) view.findviewbyid(r.id.fruit_image);
        textview fruitname = (textview) view.findviewbyid(r.id.fruit_name);
        fruitimage.setimageresource(fruit.getimageid());
        fruitname.settext(fruit.getname());
        return view;
    }
}

5、主内容

app\src\main\java\com\example\listviewtest\mainactivity.java

package com.example.listviewtest;
 
import androidx.appcompat.app.appcompatactivity;
 
import android.os.bundle;
import android.view.view;
import android.widget.adapterview;
import android.widget.arrayadapter;
import android.widget.listview;
import android.widget.toast;
 
import java.util.arraylist;
import java.util.list;
 
public class mainactivity extends appcompatactivity {
 
    private list<fruit> fruitlist = new arraylist<>();
    @override
    protected void oncreate(bundle savedinstancestate) {
        super.oncreate(savedinstancestate);
        setcontentview(r.layout.activity_main);
        initfruits();//初始化水果数据
        fruitadapter adapter = new fruitadapter(mainactivity.this,r.layout.fruit_item,fruitlist);
 
        listview listview = (listview) findviewbyid(r.id.list_view);
        listview.setadapter(adapter);
        //响应点击事件
        listview.setonitemclicklistener(new adapterview.onitemclicklistener() {
            @override
            public void onitemclick(adapterview<?> adapterview, view view, int i, long l) {
                fruit fruit = fruitlist.get(i);
                toast.maketext(mainactivity.this,fruit.getname(),toast.length_short).show();
            }
        });
    }
 
    private void initfruits(){
        for (int i=0;i<2;i++){
            fruit apple = new fruit("apple",r.drawable.apple_pic);
            fruitlist.add(apple);
            fruit banana = new fruit("banana",r.drawable.banana_pic);
            fruitlist.add(banana);
            fruit cherry = new fruit("cherry",r.drawable.cherry_pic);
            fruitlist.add(cherry);
            fruit grape = new fruit("grape",r.drawable.grape_pic);
            fruitlist.add(grape);
            fruit mango = new fruit("mango",r.drawable.mango_pic);
            fruitlist.add(mango);
            fruit orange = new fruit("orange",r.drawable.orange_pic);
            fruitlist.add(orange);
            fruit pear = new fruit("pear",r.drawable.pear_pic);
            fruitlist.add(pear);
            fruit pineapple = new fruit("pineapple",r.drawable.pineapple_pic);
            fruitlist.add(pineapple);
            fruit strawberry = new fruit("strawberry",r.drawable.strawberry_pic);
            fruitlist.add(strawberry);
            fruit watermeion = new fruit("watermeion",r.drawable.watermeion_pic);
            fruitlist.add(watermeion);
        }
 
    }
}

运行展示：

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。