Android 如何将样式应用于onTabChanged中TabHost的选项卡？

有一个

选项卡host

：

<?xml version="1.0" encoding="utf-8"?>
<TabHost 
    xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/onglets"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >
    <LinearLayout
        android:orientation="vertical"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
    >
        <TabWidget
            android:id="@android:id/tabs"
            android:orientation="horizontal"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
        />
        <FrameLayout
            android:id="@android:id/tabcontent"
            android:layout_width="fill_parent"
            android:layout_height="fill_parent">
            <include
                android:id="@+id/contentOnglet1" 
                layout="@layout/parcelle"
                android:layout_width="fill_parent"
                android:layout_height="fill_parent" />
            <include
                android:id="@+id/contentOnglet2"
                layout="@layout/liste_modele"
                android:layout_width="fill_parent"
                android:layout_height="fill_parent" />
        </FrameLayout>
    </LinearLayout>
</TabHost>

模板选项卡\u onglets.xml：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical">
        <TextView android:id="@+id/tabLabel"
            android:layout_width="fill_parent"
            android:layout_height="fill_parent"
            android:gravity="center"
            android:paddingTop="@dimen/paddingTitre"
            android:paddingBottom="@dimen/paddingTitre"
            android:background="@drawable/contour_tab_onglet"
            android:textColor="@color/txt_color"
        />
</LinearLayout>

在

TabHost

的

onTabChangedListener

中，我想对

TextView

tabLabel应用

样式，例如粗体样式。怎么做？
这是方法

mTabHost.setOnTabChangedListener(new OnTabChangeListener() {

        @Override
        public void onTabChanged(String tabName) {

            Log.i("***Selected Tab", "Im currently in tab with index::" + tabHost.getCurrentTab());

            View v=tabHost.getCurrentTabView();
            TextView title2 = (TextView) v.findViewById(R.id.tabLabel);
            title2.setTypeface(Typeface.DEFAULT_BOLD);

     }
    });

mTabHost.setOnTabChangedListener(new OnTabChangeListener() {

        @Override
        public void onTabChanged(String tabName) {

            Log.i("***Selected Tab", "Im currently in tab with index::" + tabHost.getCurrentTab());

            View v=tabHost.getCurrentTabView();
            TextView title2 = (TextView) v.findViewById(R.id.tabLabel);
            title2.setTypeface(Typeface.DEFAULT_BOLD);

     }
    });