Let me explain with an example:
Suppose I have a Page like this:
<?xml version="1.0" encoding="utf-8" ?>
<ContentPage.Resources>
<ResourceDictionary>
<!-- This is only an issue on the iPhone; Android and
WinPhone auto size the row height to the contents. -->
<OnPlatform x:Key="rowHeight"
x:TypeArguments="x:Int32"
iOS="60"
Android="60"
WinPhone="85" />
...
On Android Platform rowHeight will be 60 pixel or 60 dp ?