[Android]ListFragment.setEmptyText() 抛 java.lang.IllegalStateException

在ListFragment子类中直接调用setEmptyText(getString(R.string.msg_no_invited_parties))， 抛java.lang.IllegalStateException: Can't be used with a custom content view

改用 ((TextView)getListView().getEmptyView()).setText(getString(R.string.msg_no_invited_parties)); 则没问题。