ref: c12b88ae43a3a6c2293555b5abaeb9d60904b7f9
dir: /test/build/android/res/values/dimens.xml/
<resources>
<!-- Default screen margins, per the Android Design guidelines. -->
<dimen name="activity_horizontal_margin">16dp</dimen>
<dimen name="activity_vertical_margin">16dp</dimen>
</resources>