ref: 1a287c681d4cd2f03dd0b969b75d1f6439cace13
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>