android - How to count items in a directory? -

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i need count number of items in directory in android, example; how many files there in "layout" directory?

if count array do

(int = 0; < array.lenght; i++){     count++; }

how change "array.lenght" suitable directory? i'm doing because want create x-number of views depending on amount of items in drawable. if add new ".xml" in drawable directory, app generate view item automatically because of for-loop.

the android resources identified constants in r class generated aapt. reflection can count number of fields (e.g. drawables):

int getdrawablescount() {     return r.drawable.class.getfields().length; }

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