Found the solution myself in the end. The problem was not with
the LinearLayout, but with
the ScrollView (seems weird, considering the
fact that
the ScrollView was expanding,
while the LinearLayout wasn‘t).
The solution was to
use android:fillViewport="true" on
the ScrollView.
Android Scrollview 内部组件android:layout_height="fill_parent"无效的解决办法,布布扣,bubuko.com
Android Scrollview 内部组件android:layout_height="fill_parent"无效的解决办法
原文：http://www.cnblogs.com/zgz345/p/3714003.html