ListView基本示例

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ListView在Android中应用十分广泛，如新闻列表、电话号码列表、联系人列表等等。它一般垂直显示在手同屏幕上，可以自上而下地拉动。一般使用Adapter方法向列表中填充数据，数据来源有很多，如数组、数据库等等。

ListView属性(摘自google官方)

XML AttributesAttribute NameRelated MethodDescriptionandroid:divider Drawable or color to draw between list items. android:dividersetDivider(Drawable)Drawable or color to draw between list items. android:dividerHeight Height of the divider. android:entries Reference to an array resource that will populate the ListView. android:footerDividersEnabled When set to false, the ListView will not draw the divider before each footer view. android:headerDividersEnabled When set to false, the ListView will not draw the divider after each header view.

示例

（效果图）

strings.xml

<resources>    <string name="app_name">列表基本示例</string>    <string name="action_settings">Settings</string></resources>

colors.xml

<?xml version="1.0" encoding="utf-8"?><resources>    <color name="colorPrimary">#1cb7eb</color>    <color name="colorPrimaryDark">#1cb7eb</color>    <color name="colorAccent">#FF4081</color></resources>

layout/activity_main.xml

<?xml version="1.0" encoding="utf-8"?><LinearLayout 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:orientation="vertical"    tools:context=".MainActivity" >    <ListView        android:id="@+id/mobile_list"        android:layout_width="match_parent"        android:layout_height="wrap_content" >    </ListView></LinearLayout>

layout/activity_listview.xml

<?xml version="1.0" encoding="utf-8"?><!--  Single List Item Design --><TextView xmlns:android="http://schemas.android.com/apk/res/android"    android:id="@+id/label"    android:layout_width="fill_parent"    android:layout_height="fill_parent"    android:padding="10dip"    android:textSize="16dip"    android:textStyle="bold"    android:height="60dp"></TextView>

mainactivity.java

package com.my.asus.listviewsample;import android.os.Bundle;import android.support.v7.app.AppCompatActivity;import android.widget.ArrayAdapter;import android.widget.ListView;public class MainActivity extends AppCompatActivity {    // Array of strings...    String[] mobileArray = {"Android","IPhone","WindowsMobile","Blackberry","WebOS","Ubuntu","Windows7","Max OS X","Android","IPhone","WindowsMobile","Blackberry","WebOS","Ubuntu","Windows7","Max OS X"};    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        ArrayAdapter adapter = new ArrayAdapter<>(this, R.layout.activity_listview, mobileArray);        ListView listView = (ListView) findViewById(R.id.mobile_list);        listView.setAdapter(adapter);    }}

代码分析

ArrayAdapter adapter = new ArrayAdapter<>(this, R.layout.activity_listview, mobileArray);

数据源是数组（array）的时候，可以使用adapter。以上表达式的意思是将自定义的数组mobileArray中的项逐个填充到activity_listview.xml中的TextView中。

第一个参数this:一般都用this,指这个应用。

第二个参数：在layout中创建的xml，其中包含用来接受数组项的TextView。

第三个参数：自定义的数据名称。

源码下载

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