color, package and action bar configuration.

demos/src/main/res/values/dimens.xml

Index: demos/src/main/res/values/dimens.xml
diff --git a/demos/src/main/res/values/dimens.xml b/demos/src/main/res/values/dimens.xml
index bdea6d0f821683de715b8556f5748545a45aa080..0ce48409eba6f147dc17ec1aadf93cb35dbda32b 100644
--- a/demos/src/main/res/values/dimens.xml
+++ b/demos/src/main/res/values/dimens.xml
@@ -16,5 +16,10 @@
     <!-- Default screen margins, per the Android Design guidelines. -->
     <dimen name="activity_horizontal_margin">16dp</dimen>
     <dimen name="activity_vertical_margin">16dp</dimen>
-    <dimen name="view_vertical_margin">16dp</dimen>
+    <dimen name="view_vertical_margin">10sp</dimen>
+    <dimen name="view_height">50sp</dimen>
+    <dimen name="button_width">300sp</dimen>

[Ian Wen, 2016/02/10 02:36:06]

1. It's in general a very bad idea to restrict buttons size. Users might use a
different language, or they set different font size, or they are using a
different system font, all of which will break the UI.
2. SP is only intended for font size. For layout, use dp.
http://sebastien-gabriel.com/designers-guide-to-dpi/

[BigBossZhiling, 2016/02/17 05:18:09]

I have set the dimension to dp. As with the width of button, I am wondering say
if user is using a different language by changing string.xml, can the app use
another version of dimens.xml too? Probably that is too much trouble. But what
is the convention way to do if I want the button to be the same width and
height? 

+    <dimen name="button_height">50sp</dimen>
+    <dimen name="button_padding_top">10sp</dimen>
+    <dimen name="spinner_padding_left">15sp</dimen>
 </resources>