代码规范

设置的一些东西一定要放在初始化里面
比如

 mRv = (RecyclerView) view.findViewById(R.id.rv);        mRv.setLayoutManager(new LinearLayoutManager(getActivity(), LinearLayoutManager.VERTICAL, false));        mRv.setItemAnimator(new DefaultItemAnimator());        //添加分割线        mRv.addItemDecoration(new MyDividerItemDecoration(                getActivity(), DividerItemDecoration.VERTICAL));