在子Fragment操作父Fragment的思路
((FragmentRecyclerBD)FragmentAppointmentBD.this.getParentFragment()).changePageTitle(0,!TextUtils.((FragmentRecyclerBD在子Fragment操作父Fragment的思路
((FragmentRecyclerBD)FragmentAppointmentBD.this.getParentFragment()).changePageTitle(0,!TextUtils.((FragmentRecyclerBD