Android 删除选项卡按钮周围的灰色边框（使用FragmentTabHost）

我正在使用FragmentTabHost获取选项卡，但每个选项卡按钮周围都出现了灰色边框。请引导我摆脱这个灰色的边界。见以下附件：

我希望它看起来像：

我的布局是：

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

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >

    <FrameLayout
        android:id="@+id/realtabcontent"
        android:layout_width="fill_parent"
        android:layout_height="fill_parent"
        android:layout_above="@+id/tabhost" />

    <android.support.v4.app.FragmentTabHost
        android:id="@+id/tabhost"
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
         android:layout_alignParentBottom="true"
         >

        <FrameLayout
            android:id="@+id/tabcontent"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
             />
    </android.support.v4.app.FragmentTabHost>

</RelativeLayout>

---

提前谢谢。

我自己做了这项工作，它按要求工作。谢谢

仅用于以下代码：

    mTabHost.addTab(mTabHost.newTabSpec(HOMETAB_TAG).setIndicator(""), HomeContainerFragment.class, null);
    mTabHost.addTab(mTabHost.newTabSpec(QRTAB_TAG).setIndicator(""), QrContainerFragment.class, null);
    mTabHost.addTab(mTabHost.newTabSpec(AROUNDTAB_TAG).setIndicator(""), AroundContainerFragment.class, null);
    mTabHost.addTab(mTabHost.newTabSpec(SHARETAB_TAG).setIndicator(""), ShareContainerFragment.class, null);
    mTabHost.addTab(mTabHost.newTabSpec(MORETAB_TAG).setIndicator(""), MoreContainerFragment.class, null);

    mTabHost.getTabWidget().getChildAt(0).setBackgroundResource(R.drawable.home_selector);
    mTabHost.getTabWidget().getChildAt(1).setBackgroundResource(R.drawable.qr_selector);
    mTabHost.getTabWidget().getChildAt(2).setBackgroundResource(R.drawable.around_selector);
    mTabHost.getTabWidget().getChildAt(3).setBackgroundResource(R.drawable.share_selector);
    mTabHost.getTabWidget().getChildAt(4).setBackgroundResource(R.drawable.more_selector);

    mTabHost.getTabWidget().setStripEnabled(false);
    mTabHost.getTabWidget().setDividerDrawable(null);

    mTabHost.addTab(mTabHost.newTabSpec(HOMETAB_TAG).setIndicator(""), HomeContainerFragment.class, null);
    mTabHost.addTab(mTabHost.newTabSpec(QRTAB_TAG).setIndicator(""), QrContainerFragment.class, null);
    mTabHost.addTab(mTabHost.newTabSpec(AROUNDTAB_TAG).setIndicator(""), AroundContainerFragment.class, null);
    mTabHost.addTab(mTabHost.newTabSpec(SHARETAB_TAG).setIndicator(""), ShareContainerFragment.class, null);
    mTabHost.addTab(mTabHost.newTabSpec(MORETAB_TAG).setIndicator(""), MoreContainerFragment.class, null);

    mTabHost.getTabWidget().getChildAt(0).setBackgroundResource(R.drawable.home_selector);
    mTabHost.getTabWidget().getChildAt(1).setBackgroundResource(R.drawable.qr_selector);
    mTabHost.getTabWidget().getChildAt(2).setBackgroundResource(R.drawable.around_selector);
    mTabHost.getTabWidget().getChildAt(3).setBackgroundResource(R.drawable.share_selector);
    mTabHost.getTabWidget().getChildAt(4).setBackgroundResource(R.drawable.more_selector);

    mTabHost.getTabWidget().setStripEnabled(false);
    mTabHost.getTabWidget().setDividerDrawable(null);