I'm just reading about dimension resources (Pro Android 4), and it seems
curious how dimension resources are referenced in Java code (at least as
specified in this book).
The resource value consists of the value and the dimension, like "5px" or
"5dp" or "5sp".
You could reference this in a layout resource, like to set the "textSize"
of a TextView. My assumption is that the unit specified in the dimension
would be used in that calculation, which would result in slightly different
sizes for the previous examples. That is only an assumption. It seems
reasonable. What would be the point of specifying the unit if it isn't
used anywhere?
In Java code, however, it appears that you reference a dimension resource
like this:
float dimen =
> activity.getResources().getDimension(R.dimen.mysize_in_pixels);
>
That looks to me like it's only returning the dimensionless value ("5", for
instance).
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