ViewFlipper height issue

Question

In following code the viewflipper is not taking the whole screen it just wraps around the textview. why is this happening ?

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical" >

    <ScrollView  
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:background="#0000ff" >

        <ViewFlipper android:id="@+id/ViewFlipper01"
            android:layout_width="match_parent"
            android:layout_height="match_parent"
            android:background="#aa0000"
            android:layout_gravity="center">  

            <TextView
                android:layout_width="match_parent"
                android:layout_height="50dp"></TextView>

        </ViewFlipper>
    </ScrollView>
</LinearLayout>

Answer 1

In scrollView use

android:fillViewport="true"