ref: 1b3dca6b7d6ac10b8bd5a09fef7e4be7ba1e3ea2
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>