I have tabs in my app:
Also, I have blocs for fetching data for each tab (one bloc per tab). I want show tab only if I get a not empty list of data from bloc. How can I get access to this?
I push events while initState():
void _fetchData() {
context
..read<FeedBloc>().add(const FeedEvent.fetch(isFirstFetch: true))
..read<PromotionsBloc>().add(const PromotionsEvent.fetch(isFirstFetch: true))
..read<ShopBloc>().add(const ShopEvent.fetch(isFirstFetch: true));
}
Use BlocBuilder to check if data is not empty. You can try something like this:
BlocBuilder<FeedBloc, FeedBlocState>(
builder: (context, state) {
if(state.news == null || state.news!.isEmpty) return const SizedBox.shrink();
return NewsTab();
}
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