片段打开时，视图向下滚动到tabhost

Question

当我在scrollview中使用scrollview和tabhost打开片段时，它会自动向下滚动到隐藏scrollview顶部的tabhost的开头。我试过改变各种事情，到目前为止没有任何工作。会继续尝试，只是把它放在这里，希望有人可以帮助我。以下是代码的相关部分。

FragmentProfile.java

public class FragmentProfile extends Fragment {
private FragmentTabHost mTabHost;
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    View view = inflater.inflate(R.layout.fragment_profile, container, false);

    mTabHost = (FragmentTabHost) view.findViewById(android.R.id.tabhost);
    mTabHost.setup(getActivity(), getChildFragmentManager(), R.id.realtabcontent);

    mTabHost.addTab(mTabHost.newTabSpec("tab1").setIndicator("", ContextCompat.getDrawable(getActivity(), R.drawable.ic_c_text)),
            FragmentProfileTab1.class, null);

    return view;
}
}

fragment_profile.xml

<?xml version="1.0" encoding="utf-8"?>
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:id="@+id/scrollview"
android:fillViewport="true"
android:orientation="vertical">

<LinearLayout
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical">

    <LinearLayout
        android:layout_width="fill_parent"
        android:layout_height="70dp"
        android:background="#fff"
        android:weightSum="4">


            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_marginTop="5dp"
                android:padding="2dp"
                android:text="rolands"
                android:textColor="#000"
                android:textSize="18dp" />

    </LinearLayout>

    <android.support.v4.app.FragmentTabHost
        android:id="@android:id/tabhost"
        android:layout_width="match_parent"
        android:layout_height="match_parent">

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:orientation="vertical">

            <TabWidget
                android:id="@android:id/tabs"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_weight="0"
                android:background="#6e0d16"
                android:orientation="horizontal" />

            <FrameLayout
                android:id="@android:id/tabcontent"
                android:layout_width="0dp"
                android:layout_height="0dp"
                android:layout_weight="0"
                android:background="#fff" />

            <FrameLayout
                android:id="@+id/realtabcontent"
                android:layout_width="match_parent"
                android:layout_height="0dp"
                android:layout_weight="1" />

        </LinearLayout>

    </android.support.v4.app.FragmentTabHost>

</LinearLayout>

</ScrollView>

FragmentProfileTab1.java

public class FragmentProfileTab1 extends Fragment {
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,  Bundle savedInstanceState) {
    View view = inflater.inflate(R.layout.fragment_profile_tab1, container, false);


    return view;
}
}

fragment_profile_tab1.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="match_parent"
android:layout_height="match_parent"
android:background="#fff"
android:orientation="vertical"
tools:context=".DeviceFragment">

<LinearLayout
    android:layout_width="match_parent"
    android:layout_height="3000dp"
    android:layout_marginBottom="10dp"
    android:layout_marginLeft="10dp"
    android:layout_marginRight="10dp"
    android:layout_marginTop="10dp"
    android:background="#333"
    android:orientation="vertical">

</LinearLayout>

</LinearLayout>

视图自动向下滚动到tabwidget的开头。我在尝试新事物时会继续编辑。

我尝试了scrollView.scrollTo（0,0）和scrollView.fullScroll（ScrollView.FOCUS_UP）但没有成功。