transaction = manager?.beginTransaction()
transaction?.add(R.id.active_fragment,shop_fragment,shop_fragment.TAG)
transaction?.commit()
transaction = manager?.beginTransaction()
transaction?.replace(R.id.active_fragment, shop_fragment, shop_fragment.TAG)
transaction?.commit()
transaction = manager?.beginTransaction()
transaction?.replace(R.id.active_fragment, store_fragment, store_fragment.TAG)
transaction?.commit()