android Listview2 笔记

ListView编程的一般步骤

1）在布局文件中声明ListView控件

2) 使用一维或多维动态数组保存ListView要显示的数据 ；

3) 构建适配器Adapter,将数据与显示数据的布局页面绑定； 

4）通过setAdapter()方法把适配器设置给ListView

第一步：编写布局文件main.xml，添加三个Textview和listview实现整体布局。具体代码如下

 

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >
    <TextView android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:text="@string/tv1"
            android:background="#FFF"
            android:textColor="#888"
            android:gravity="center"/>
    <ListView android:id="@+id/lvCheckedTextView"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"/>
    
    <TextView android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:text="@string/tv2"
            android:background="#FFF"
            android:textColor="#888"
            android:gravity="center"/>
    <ListView android:id="@+id/lvRadioButton"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"/>
            
    <TextView android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:text="@string/tv3"
            android:background="#FFF"
            android:textColor="#888"
            android:gravity="center"/>
    <ListView android:id="@+id/lvCheckedButton"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"/>
        
</LinearLayout>

 

第二步：修改String.xml文件的内容，方便程序或者main.xml访问，具体代码如下

 

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <string name="hello">Hello World, Listview02Activity!</string>
    <string name="app_name">Listview02</string>
    <string name="tv1">单项打勾</string>
    <string name="tv2">RadioButton</string>
    <string name="tv3">CheckBox</string>
</resources>

 

第三步：修改ListView01.java，添加listview的相关操作，具体代码如下

 

package cn.shaoyangjiang.com;

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

public class Listview02Activity extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        //得到三个listview
        ListView listview1 = (ListView)findViewById(R.id.lvCheckedTextView);
        ListView listview2 = (ListView)findViewById(R.id.lvRadioButton);
        ListView listview3 = (ListView)findViewById(R.id.lvCheckedButton);
        //用string来保存listview要显示的数据
        String[] data = new String[]
           {"邵洋江加油","你会成功的"};
        //构建适配器Adapter,将数据与显示数据的布局页面绑定；
        ArrayAdapter<String> lv1Adapter = new ArrayAdapter<String>(this,android.R.layout.simple_list_item_checked,data);
        //通过setAdapter()方法把适配器设置给ListView
        listview1.setAdapter(lv1Adapter);
        //listview里的内容设置为单选
        listview1.setChoiceMode(ListView.CHOICE_MODE_SINGLE);
        
        ArrayAdapter<String> lv2Adapter = new ArrayAdapter<String>(this,android.R.layout.simple_list_item_single_choice,data);
        listview2.setAdapter(lv2Adapter);
        listview2.setChoiceMode(ListView.CHOICE_MODE_SINGLE);
        
        ArrayAdapter<String> lv3Adapter = new ArrayAdapter<String>(this,android.R.layout.simple_list_item_multiple_choice,data);
        listview3.setAdapter(lv3Adapter);
        listview3.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);
        }
}

 

具体效果如下：

 

如果还想深入了解，下面的链接不错

 

 

 

Android之Adapter用法总结：http://kb.cnblogs.com/a/2328334/