问题
I'm working on weather forecast app, which is made with CustomScrollView - SliverAppBar shows selected city and current weather and SliverList shows forecast. Then, using FAB, I open BottomSheet where I change city. Now (after confirm button press) I'd like to update content of the View to new data.
Source code
来源：https://stackoverflow.com/questions/57648842/how-to-make-sliverappbar-listen-to-botomsheet-change