函数 'assessmentSink' 无法返回类型 'StreamSink<dynamic>' 的值
A value of type 'StreamSink<dynamic>' can't be returned from the function 'assessmentSink'
class AssessmentBloc {
late AssessmentRepository _genRepository;
late StreamController assessmentController;
late StreamController submitAssessmentController;
StreamSink<ApiResponse<AssessmentModel>> get assessmentSink => assessmentController.sink;
StreamSink<ApiResponse<AssessmentResult>> get submitSink => submitAssessmentController.sink;
AssessmentBloc() {
assessmentController = StreamController<ApiResponse<AssessmentModel>>();
submitAssessmentController = StreamController<ApiResponse<AssessmentResult>>();
_genRepository = AssessmentRepository();
}
dispose() {
assessmentController?.close();
submitAssessmentController?.close();
}
}
class ApiResponse<T> {
States state;
T? data;
String? message;
bool? status;
ApiResponse.loading(this.message) : state = States.LOADING;
ApiResponse.completed(this.data) : state = States.COMPLETED;
//ApiResponse.completedWithMsg(this.message) : state = States.COMPLETED;
ApiResponse.completedWithMsg({this.status, this.message}) : state = States.COMPLETED_WITH_MSG;
ApiResponse.error(this.message) : state = States.ERROR;
ApiResponse.reset() : state = States.RESET;
@override
String toString() {
return "States : $state \n Message : $message \n Data : $data";
}
}
枚举状态 { 加载、完成、COMPLETED_WITH_MSG、错误、重置}
刚刚将代码迁移到 null-safety dart 版本 2.12,此行出现错误。以前的版本 2.7.0 运行良好。如果你们中的任何人能帮助我,我将不胜感激。
A value of type 'StreamSink<dynamic>' can't be returned from the function 'assessmentSink' because it has a return type of 'StreamSink<ApiResponse<AssessmentModel>>'.
尝试将流控制器的类型定义为:
late StreamController<ApiResponse<AssessmentModel>> submitAssessmentController;
class AssessmentBloc {
late AssessmentRepository _genRepository;
late StreamController assessmentController;
late StreamController submitAssessmentController;
StreamSink<ApiResponse<AssessmentModel>> get assessmentSink => assessmentController.sink;
StreamSink<ApiResponse<AssessmentResult>> get submitSink => submitAssessmentController.sink;
AssessmentBloc() {
assessmentController = StreamController<ApiResponse<AssessmentModel>>();
submitAssessmentController = StreamController<ApiResponse<AssessmentResult>>();
_genRepository = AssessmentRepository();
}
dispose() {
assessmentController?.close();
submitAssessmentController?.close();
}
}
class ApiResponse<T> {
States state;
T? data;
String? message;
bool? status;
ApiResponse.loading(this.message) : state = States.LOADING;
ApiResponse.completed(this.data) : state = States.COMPLETED;
//ApiResponse.completedWithMsg(this.message) : state = States.COMPLETED;
ApiResponse.completedWithMsg({this.status, this.message}) : state = States.COMPLETED_WITH_MSG;
ApiResponse.error(this.message) : state = States.ERROR;
ApiResponse.reset() : state = States.RESET;
@override
String toString() {
return "States : $state \n Message : $message \n Data : $data";
}
}
枚举状态 { 加载、完成、COMPLETED_WITH_MSG、错误、重置}
刚刚将代码迁移到 null-safety dart 版本 2.12,此行出现错误。以前的版本 2.7.0 运行良好。如果你们中的任何人能帮助我,我将不胜感激。
A value of type 'StreamSink<dynamic>' can't be returned from the function 'assessmentSink' because it has a return type of 'StreamSink<ApiResponse<AssessmentModel>>'.
尝试将流控制器的类型定义为:
late StreamController<ApiResponse<AssessmentModel>> submitAssessmentController;