Question

Is there a way to influence the button widget layout according to screen orientation without adding an extra layout for each orientation?

For instance
portrait:

<android:id="@+id/button"
        android:text="@string/title"
        android:drawableTop="@drawable/icon" />

and landscape:

<android:id="@+id/button"
        android:text="@string/title"
        android:drawableLeft="@drawable/icon" />

Answer 1

You can extract that attribute and add a style for the button

<android:id="@+id/button"
        android:text="@string/title"
        style="@style/yourbuttonstyle" />

and then create two different style files, one in res/values and one in res/values-land, using the normal resource folder qualifiers. They could look like this:

res/values/styles.xml

<style name="yourbuttonstyle">
        <item name="android:drawableTop">@drawable/icon</item>
</style>

res/values-land/styles.xml

<style name="yourbuttonstyle">
        <item name="android:drawableLeft">@drawable/icon</item>
</style>

See defining styles for more documentation how to do that exactly.