BlocBuilder在更改后不重建UI

Question

我有一个绘制捐赠条的BlocBuilder，但是当对捐赠的更改来自套接字时，由于某种原因，它在调用emit后没有重新绘制UI。

集团

BlocBuilder<PatientCardBloc, PatientCardState>(
bloc: PatientCardBloc(),
builder: (context, state) {
return DonatedProgress(
name: patient.firstName,
disease: patient.problem.disease,
currentAmount:
state.status != PatientCardStatus.initialized
? patient.currentAmount
: patient.id == state.patient.id
? state.patient.currentAmount
: patient.currentAmount,
totalAmount: patient.amount,
);
},
),

发出

_onSetPatientCardFromSoketEvent(
SetPatientCardFromSoketEvent event, Emitter<PatientCardState> emit) {
final patient = event.patient;
if (state.patient.id == patient.id) {
emit(PatientCardState(
patient: patient, status: PatientCardStatus.initialized));
}
}

Answer 1

bloc: PatientCardBloc()

在定义BlocBuilder时不应该创建新的Bloc对象。请使用BlocProvider的create方法。