06_Android中ArrayAdapter的使用



1 目标界面

2 编写AndroidManifest.xml文件

<?xml version="1.0" encoding="utf-8"?>

<manifest xmlns:android="http://schemas.android.com/apk/res/android"

package="com.itheima28.arrayadapterdemo"

android:versionCode="1"

android:versionName="1.0" >

<uses-sdk

android:minSdkVersion="8"

android:targetSdkVersion="19" />

<application

android:allowBackup="true"

android:icon="@drawable/ic_launcher"

android:label="@string/app_name"

android:theme="@style/AppTheme" >

<activity

android:name="com.itheima28.arrayadapterdemo.MainActivity"

android:label="@string/app_name" >

<intent-filter>

<action android:name="android.intent.action.MAIN" />

<category android:name="android.intent.category.LAUNCHER" />

</intent-filter>

</activity>

</application>

</manifest>

3 编写布局文件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.itheima28.arrayadapterdemo.MainActivity$PlaceholderFragment" >

<ListView

android:id="@+id/listview"

android:layout_width="match_parent"

android:layout_height="match_parent"/>

</RelativeLayout>

4 编写代码

package com.itheima28.arrayadapterdemo;

import android.app.Activity;

import android.os.Bundle;

import android.widget.ArrayAdapter;

import android.widget.ListView;

/**

* ArrayAdapter的使用

* @author toto

*

*/

public class MainActivity extends Activity {

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_main);

ListView mListView = (ListView) findViewById(R.id.listview);

String[] textArray = {"功能1","功能2","功能3","功能4","功能5","功能6","功能7","功能8"};

/**

* 定义数据适配器

*/

ArrayAdapter<String> adapter = new ArrayAdapter<String>(

this,

android.R.layout.simple_list_item_1,

textArray);

mListView.setAdapter(adapter);

}

}