Android plurals treatment of “zero”

Question

If have the following plural ressource in my strings.xml:

   
        No item
           


        

Answer 1

From http://developer.android.com/guide/topics/resources/string-resource.html#Plurals:

Note that the selection is made based on grammatical necessity. A string for zero in English will be ignored even if the quantity is 0, because 0 isn't grammatically different from 2, or any other number except 1 ("zero books", "one book", "two books", and so on). Don't be misled either by the fact that, say, two sounds like it could only apply to the quantity 2: a language may require that 2, 12, 102 (and so on) are all treated like one another but differently to other quantities. Rely on your translator to know what distinctions their language actually insists upon.

In conclusion, 'zero' is only used for certain languages (same goes for 'two' 'few' etc.) because the other languages do not have a special conjugation and therefore the 'zero' field is considered unnecessary