java - Possible to get reference to a View without setting the ContentView of an Activity -

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i want able reference relativelayout in same way as

relativelayout relative = (relativelayout)findviewbyid(r.id.relative);

but without setting contentview of activity. think may have infalter? ultimate aim , add child view of custom view object.

yes, can use layoutinflater. example: 

layoutinflater inflater = (layoutinflater)getsystemservice(context.layout_inflater_service);     view mv = inflater.inflate(r.layout.yourlayout, null);

and could...

relativelayout relative = (relativelayout)mv.findviewbyid(r.id.relative);

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