avtivity里:
//主要是这里要都指向avtivity
mViewModel =ViewModelProviders.of(this).get(sjd_ViewModel.class);
fragment里:
//主要是这里要都指向avtivity
mViewModel =ViewModelProviders.of(getActivity()).get(sjd_ViewModel.class);
avtivity里:
//主要是这里要都指向avtivity
mViewModel =ViewModelProviders.of(this).get(sjd_ViewModel.class);
fragment里:
//主要是这里要都指向avtivity
mViewModel =ViewModelProviders.of(getActivity()).get(sjd_ViewModel.class);