How can I creat struct view in SwiftUI-CodePudding

I want to use QuestionView View in two different View. But I have Questions array in 1st View. 2. I have WrongQuestions array in View. I'm passing these arrays into QuestionView with @Binding. I don't want to write the same QuestionView twice. I just want to change the @Binding arrays it will get.

I have two different models. 1. Question 2. WrongQuestion

How can I design QuestionView according to these two different models?

I don't want QuestionView to only get [Question] array. I want it to retrieve [Question] and [WrongQuestion] arrays.

First I want to show QuestionView

I want @Binding var questions: [Question] array in QuestionView to have WrongQuestions in second View. How can I do that ?

QuestionView:

struct QuestionView: View {
    
    @State var selectedQuestion: Int = 1
    @StateObject var questionConfig = QuestionConfig()
    @Binding var questions: [Question] //
    
    var body: some View {
       ...........
    }
}

1. View:

QuizCategoryViewModel:

final class QuizCategoryViewModel: ObservableObject {
       .....
    @Published var selectedQuestion: [Question] = []
       .....
}


struct QuizCategoryView: View {
    
    @StateObject var quizCategoryViewModel: QuizCategoryViewModel = QuizCategoryViewModel()
    
    var body: some View {
        ......
        QuestionView(questions: $quizCategoryViewModel.selectedQuestion)
        ......
    }
}

2. View:

WrongQuestionView:

As seen in the second View it wants me to assign [Question] array, but I want to assign [WrongQuestion] array here. How can I make this generic?

struct WrongQuestionView: View {
    var body: some View {
        QuestionView(questions: <#T##[Question]#>) <---- HERE
    }
}

CodePudding user response：

It looks like there might be some detail missing in the question (like showing Question and WrongQuestion and where the view is that has the array of WrongQuestion), but in a general sense, it sounds like you need a protocol that both Question and WrongQuestion conform to and then a QuestionView that can accept either type.

protocol QuestionType {
    
}

struct Question : QuestionType {
    
}

struct WrongQuestion : QuestionType {
    
}

struct QuestionView<T:QuestionType>: View {
    @Binding var questions: [T]
    
    var body: some View {
       Text("Hi")
    }
}

struct ContentView: View {
    @State var wrongQuestions : [WrongQuestion] = []
    @State var questions : [Question] = []
    
    var body: some View {
        QuestionView(questions: $wrongQuestions)
        QuestionView(questions: $questions)
    }
}