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); } } |