RecyclerView不调用onCreateViewHolder和onBindViewHolder
1.getItemCount()返回值<=0 ;
2.要设置LinearLayoutManager ;
listView = view.findViewById(R.id.lv_communication);
mLayoutManager = new LinearLayoutManager(getActivity());
mLayoutManager.setOrientation(OrientationHelper.VERTICAL);
listView.setLayoutManager(mLayoutManager);
3.被ScrollView嵌套