<?xml version="1.0" encoding="utf-8"?>
<TableLayout xmlns:Android="http://schemas.android.com/apk/res/android"
    Android:layout_width="fill_parent"
    Android:layout_height="fill_parent" >

    <TableRow>

        <TextView
            Android:layout_marginRight="4px"
            Android:text="sans:"
            Android:textSize="20sp" >
        </TextView>
        <!-- 使用默認的sans字體 -->

        <TextView
            Android:id="@+id/sans"
            Android:text="Hello,World"
            Android:textSize="20sp"
            Android:typeface="sans" >
        </TextView>
    </TableRow>

    <TableRow>

        <TextView
            Android:layout_marginRight="4px"
            Android:text="serif:"
            Android:textSize="20sp" >
        </TextView>
        <!-- 使用默認的serifs字體 -->

        <TextView
            Android:id="@+id/serif"
            Android:text="Hello,World"
            Android:textSize="20sp"
            Android:typeface="serif" >
        </TextView>
    </TableRow>

    <TableRow>

        <TextView
            Android:layout_marginRight="4px"
            Android:text="monospace:"
            Android:textSize="20sp" >
        </TextView>
        <!-- 使用默認的monospace字體 -->

        <TextView
            Android:id="@+id/monospace"
            Android:text="Hello,World"
            Android:textSize="20sp"
            Android:typeface="monospace" >
        </TextView>
    </TableRow>
    <!-- 這里沒有設定字體，我們將在Java代碼中設定 -->

    <TableRow>

        <TextView
            Android:layout_marginRight="4px"
            Android:text="custom:"
            Android:textSize="20sp" >
        </TextView>

        <TextView
            Android:id="@+id/custom"
            Android:text="Hello,World"
            Android:textSize="20sp" >
        </TextView>
    </TableRow>

</TableLayout>

// 得到TextView控件對象
TextView textView = (TextView) findViewById(R.id.custom);
// 將字體文件保存在assets/fonts/目錄下，www.linuxidc.com創建Typeface對象
Typeface typeFace = Typeface.createFromAsset(getAssets(),"fonts/DroidSansThai.ttf");
// 應用字體
textView.setTypeface(typeFace);

package arui.blog.csdn.net;  

import android.app.Activity;  
import android.graphics.Typeface;  
import android.view.View;  
import android.view.ViewGroup;  
import android.widget.Button;  
import android.widget.EditText;  
import android.widget.TextView;  

public class FontManager {  

    public static void changeFonts(ViewGroup root, Activity act) {  

       Typeface tf = Typeface.createFromAsset(act.getAssets(),  
              "fonts/xxx.ttf");  

       for (int i = 0; i < root.getChildCount(); i++) {  
           View v = root.getChildAt(i);  
           if (v instanceof TextView) {  
              ((TextView) v).setTypeface(tf);  
           } else if (v instanceof Button) {  
              ((Button) v).setTypeface(tf);  
           } else if (v instanceof EditText) {  
              ((EditText) v).setTypeface(tf);  
           } else if (v instanceof ViewGroup) {  
              changeFonts((ViewGroup) v, act);  
           }  
       }  

    }  
}