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bloc only listen to one state

Clean Chicken answered on June 30, 2022 Popularity 3/10 Helpfulness 8/10

answer bloc only listen to one state

bloc only listen to one state

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Use bloc consumer and pay attention to buildWhen method

BlocConsumer<ProductBloc, ProductState>(
    buildWhen: (previous, current) => current is ShoesLoadedState,
    listener: (context, state) {
    	// do something, fetch data on initial state or whatever 
    	if(state is EmptyShoesState){
        	BlocProvider.of<ProductCubit>(context).add(GetShoesListEvent());
        }
    },
    builder: (context, state) {
    	// then all widget placed here will only rebuilt when
        // the current state is ShoesLoadedState
    }
)

Popularity 3/10 Helpfulness 8/10 Language whatever

Source: Grepper

Tags: bloc listen state whatever

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Contributed on Jun 30 2022

Clean Chicken

0 Answers Avg Quality 2/10

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bloc only listen to one state

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