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>