xml - Android Percentage Layout Height

Question

I know that it is impossible to set percentages and that you can set a weight of certain images to scale their heights. What I am trying to do though is specify the height of a layout relative to the layout it is within. Basicly I have something like this

<LinearLayout android:layout_height="fill_parent">
  <LinearLayout>

  </LinearLayout>
</LinearLayout>

Of course this is a very simplified version, just so you can understand my gibberish. Basicly I want to set the inner linearlayout to be around 50% of the main linearlayout.

What is the best way to do this?

Answer 1

There is an attribute called android:weightSum.

You can set android:weightSum="2" in the parent linear_layout and android:weight="1" in the inner linear_layout.

Remember to set the inner linear_layout to fill_parent so weight attribute can work as expected.

Btw, I don't think its necesary to add a second view, altough I haven't tried. :)

<LinearLayout
    android:layout_height="fill_parent"
    android:layout_width="fill_parent"
    android:weightSum="2">

    <LinearLayout
        android:layout_height="fill_parent"
        android:layout_width="fill_parent"
        android:layout_weight="1">
    </LinearLayout>

</LinearLayout>