android的ListView_andriod studio类之间传送数九-优快云博客

本文链接：https://blog.youkuaiyun.com/cmdos/article/details/53592480

本文介绍如何在Android应用中实现ListView组件，包括XML布局配置、ListView的属性设置及点击事件处理等关键技术点。

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strings.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>
 
    <string name="app_name">ListView</string>
    <string name="hello_world">Hello world!</string>
    <string name="action_settings">Settings</string>
 
     
     
    <string-array  name="names">
          <item>萌萌</item>
          <item>小白</item>
          <item>张三</item>
          <item>李四</item>
          <item>王五</item>
          <item>萌萌</item>
          <item>小白</item>
          <item>张三</item>
          <item>李四</item>
          <item>王五</item>
          <item>萌萌</item>
          <item>小白</item>
          <item>张三</item>
          <item>李四</item>
          <item>王五</item>
    </string-array>
</resources>

activity_main.xml

<RelativeLayout 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:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.example.listview.MainActivity" >
 
    
    <ListView
        android:id="@+id/ListView1_1" 
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:entries="@array/names"
        
        android:footerDividersEnabled="true"
       
        android:scrollbars="horizontal|vertical"
        android:fastScrollEnabled="true"
        android:listSelector="#f5ffcc"
        android:drawSelectorOnTop="false"
        >
         
    </ListView>
</RelativeLayout>
<!--   1.设置滚动条
        android:scrollbars="horizontal|vertical"   水平和垂直方向的
        android:fastScrollEnabled="true"           快速滚动条
         2.item之间的间隔宽度
          android:dividerHeight="2dp"
        3.item之间的颜色
          android:divider="#00ffff"
        4.选中时的颜色
           android:listSelector="#00ffff"
        5.选中时，将字显示出来，尤其是写了选中时的颜色时，一定要加上这一条，否则字被遮盖
           android:drawSelectorOnTop="false"
         -->
    

MainActivity

package com.example.listview;
 
import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.TextView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.ListView;
import android.widget.Toast;
 
public class MainActivity extends Activity implements OnItemClickListener{
    private ListView listView;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        listView=(ListView) findViewById(R.id.ListView1_1);
        listView.setOnItemClickListener(this);
    }
    //listView列表项的单击事件
    @Override
    public void onItemClick(AdapterView<?> parent, View view, int position,
            long id) {
        // TODO Auto-generated method stub
        TextView textView=(TextView)view;
        System.out.println(parent.getClass());
        System.out.println("position:"+position);
        System.out.println("view:"+view);
        System.out.println(textView.getText().toString());
        Toast.makeText(MainActivity.this, textView.getText().toString(), Toast.LENGTH_SHORT).show();
         
    }
}