数组资源(arrays)的使用

Android的资源布局类型表：

 

下面通过一个实例演示数组资源的使用，将数组资源的内容显示在界面上：

Activity：

 package com.lovo.activity;

 import android.app.Activity;
 import android.content.res.TypedArray;
 import android.os.Bundle;
 import android.util.Log;
 import android.widget.TextView;

 public class TestArrayActivity extends Activity {

     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.testarray);
         // 得到TextView实例
         TextView tx = (TextView) findViewById(R.id.tx);
         // 得到字符串数组
         String[] strAry = getResources().getStringArray(R.array.str_ary);
         String str = "";
         // 得到整型数组
         int[] intAry = getResources().getIntArray(R.array.int_ary);
         // 得到普通数组
         TypedArray dateAry = getResources().obtainTypedArray(R.array.date);
         for (int i = 0; i < intAry.length; i++) {
             Log.i("intAry:", intAry[i] + "");// 打印到LogCat
             str += intAry[i] + "   ";
         }
         str += "\n";
         for (int i = 0; i < strAry.length; i++) {
             Log.i("strAry:", strAry[i]);
             str += strAry[i] + "  ";
         }
         str += "\n";
         for (int i = 0; i < dateAry.length(); i++) {
             Log.i("dateAry:", dateAry.getString(i));
             str += dateAry.getString(i) + "  ";
         }
         // 将数组中的元素设置到TextView中显示出来
         tx.setText(str);
     }
 }

 

布局XML，testarray.xml：

 <?xml version="1.0" encoding="utf-8"?>
 <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
     android:orientation="vertical" >

     <TextView
         android:id="@+id/tx"
         android:layout_width="match_parent"
         android:layout_height="wrap_content" />

 </LinearLayout>

数组XML：

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

     <string-array name="str_ary">
         <item>张三</item>
         <item>李四</item>
         <item>王五</item>
     </string-array>

     <integer-array name="int_ary">
         <item>1</item>
         <item>2</item>
         <item>3</item>
     </integer-array>

     <array name="date">
         <item>昨天</item>
         <item>今天</item>
         <item>明天</item>
     </array>

 </resources>