字符串资源、颜色资源、尺寸资源，它们对应的 XML 文件都将位于/res/values 目录下， 它们默认的文件名，以及在 R 类中对应的内部类如下所示：
不过其中的默认文件名称是可以修改的。
示例代码如下：
main.xml
<?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" android:orientation="vertical" android:layout_width="fill_parent" android:layout_height="fill_parent" android:gravity="center_horizontal" > <!-- 使用字符串资源，尺度资源 --> <TextView android:layout_width="wrap_content" android:layout_height="wrap_content" android:text="@string/app_name" android:gravity="center" android:textSize="@dimen/title_font_size" /> <!-- 定义一个GridView组件，使用尺度资源中定义的长度来指定水平间距、垂直间距 --> <GridView android:id="@+id/grid01" android:layout_width="wrap_content" android:layout_height="wrap_content" android:horizontalSpacing="@dimen/spacing" android:verticalSpacing="@dimen/spacing" android:numColumns="3" android:gravity="center"> </GridView> </LinearLayout>
资源文件的名称是可以修改，当然也可以定义多个相同类型的资源文件，但注意所有的资源文件都是以<resources>为根目录的，至于里面的类型则为对应的color,demen,integer,string,boolean等，这些标签是不能更改的，编译器根据这些来生成R.java中的类。
color3.xml
<?xml version="1.0" encoding="utf-8"?> <resources> <color name="c1">#F00</color> <color name="c2">#0F0</color> <color name="c3">#00F</color> <color name="c4">#0FF</color> <color name="c5">#F0F</color> <color name="c6">#FF0</color> <color name="c7">#07F</color> <color name="c8">#70F</color> <color name="c9">#F70</color> </resources>
dimens.xml
<?xml version="1.0" encoding="utf-8"?> <resources> <dimen name="spacing">8dp</dimen> <!-- 定义GridView组件中每个单元格的宽度、高度 --> <dimen name="cell_width">60dp</dimen> <dimen name="cell_height">66dp</dimen> <!-- 定义主程序的标题的字体大小 --> <dimen name="title_font_size">18sp</dimen> </resources>
integers.xml
<?xml version="1.0" encoding="utf-8"?> <resources> <integer name="font_size">20</integer> </resources>
strings.xml
<?xml version="1.0" encoding="utf-8"?> <resources> <string name="hello">Hello World, ValuesResTest!</string> <string name="app_name">字符串、数字、尺寸资源</string> <string name="c1">F00</string> <string name="c2">0F0</string> <string name="c3">00F</string> <string name="c4">0FF</string> <string name="c5">F0F</string> <string name="c6">FF0</string> <string name="c7">07F</string> <string name="c8">70F</string> <string name="c9">F70</string> </resources>
ValueResTest.java
package org.crazyit.res; import android.app.Activity; import android.content.res.Resources; import android.os.Bundle; import android.view.View; import android.view.ViewGroup; import android.widget.BaseAdapter; import android.widget.GridView; import android.widget.TextView; /** * Description: * <br/>site: <a href="http://www.crazyit.org">crazyit.org</a> * <br/>Copyright (C), 2001-2014, Yeeku.H.Lee * <br/>This program is protected by copyright laws. * <br/>Program Name: * <br/>Date: * @author Yeeku.H.Lee kongyeeku@163.com * @version 1.0 */ public class ValuesResTest extends Activity { // 使用字符串资源 int[] textIds = new int[] { R.string.c1 , R.string.c2 , R.string.c3 , R.string.c4 , R.string.c5 , R.string.c6 , R.string.c7 , R.string.c8 , R.string.c9 }; // 使用颜色资源 int[] colorIds = new int[] { R.color.c1 , R.color.c2 , R.color.c3 , R.color.c4 , R.color.c5 , R.color.c6 , R.color.c7 , R.color.c8 , R.color.c9 }; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); // 创建一个BaseAdapter对象 BaseAdapter ba = new BaseAdapter() { @Override public int getCount() { // 指定一共包含9个选项 return textIds.length; } @Override public Object getItem(int position) { // 返回指定位置的文本 return getResources().getText(textIds[position]); } @Override public long getItemId(int position) { return position; } // 重写该方法，该方法返回的View将作为的GridView的每个格子 @Override public View getView(int position , View convertView, ViewGroup parent) { TextView text = new TextView(ValuesResTest.this); Resources res = ValuesResTest.this.getResources(); // 使用尺度资源来设置文本框的高度、宽度 text.setWidth((int) res.getDimension(R.dimen.cell_width)); text.setHeight((int) res.getDimension(R.dimen.cell_height)); // 使用字符串资源设置文本框的内容 text.setText(textIds[position]); // 使用颜色资源来设置文本框的背景色 text.setBackgroundResource(colorIds[position]); text.setTextSize(20); text.setTextSize(getResources() .getInteger(R.integer.font_size)); return text; } }; GridView grid = (GridView)findViewById(R.id.grid01); // 为GridView设置Adapter grid.setAdapter(ba); } }
编译器自动生成的R.java文件：
/* AUTO-GENERATED FILE. DO NOT MODIFY. * * This class was automatically generated by the * aapt tool from the resource data it found. It * should not be modified by hand. */ package org.crazyit.res; public final class R { public static final class attr { } public static final class color { public static final int c1=0x7f040000; public static final int c2=0x7f040001; public static final int c3=0x7f040002; public static final int c4=0x7f040003; public static final int c5=0x7f040004; public static final int c6=0x7f040005; public static final int c7=0x7f040006; public static final int c8=0x7f040007; public static final int c9=0x7f040008; } public static final class dimen { public static final int cell_height=0x7f050002; /** 定义GridView组件中每个单元格的宽度、高度 */ public static final int cell_width=0x7f050001; public static final int spacing=0x7f050000; /** 定义主程序的标题的字体大小 */ public static final int title_font_size=0x7f050003; } public static final class drawable { public static final int ic_action_search=0x7f020000; public static final int ic_launcher=0x7f020001; } public static final class id { public static final int grid01=0x7f080000; } public static final class integer { public static final int font_size=0x7f060000; } public static final class layout { public static final int main=0x7f030000; } public static final class string { public static final int app_name=0x7f070001; public static final int c1=0x7f070002; public static final int c2=0x7f070003; public static final int c3=0x7f070004; public static final int c4=0x7f070005; public static final int c5=0x7f070006; public static final int c6=0x7f070007; public static final int c7=0x7f070008; public static final int c8=0x7f070009; public static final int c9=0x7f07000a; public static final int hello=0x7f070000; } }
及BuildConfig.java：
/** Automatically generated file. DO NOT MODIFY */ package org.crazyit.res; public final class BuildConfig { public final static boolean DEBUG = true; }
屏幕截图：