我正在SWIFT中创建一个测验应用程序.每个测验都有一组问题,这些问题在QuestionView中表示."下一步"按钮应该显示与"QuestionView"相同的视图,但带有数组的下一个问题.但是,QuestionView总是显示相同的问题.
以下是问题视图:
struct QuestionView: View {
var quiz: Quiz
var question: Question
@State private var isFinished = false
@State private var success = true
var body: some View {
VStack(spacing: 40) {
VStack {
Text(quiz.name)
.font(.title3)
.bold()
HStack(spacing: 20) {
ProgressBar(progress: 250 / CGFloat(quiz.questions.count) * CGFloat(quiz.progress))
Text("\(quiz.progress + 1)/\(quiz.questions.count)")
.bold()
}
}
Text(question.questionText)
.font(.title)
.fontWeight(.semibold)
.frame(width: 300)
Spacer()
LazyVGrid(columns: [GridItem(.adaptive(minimum: 160, maximum: 240))], spacing: 10) {
ForEach(question.answers) { index in
AnswerRow(answer: index)
.onTapGesture {
if index.isCorrect && success == true {
self.quiz.score += 1
self.quiz.progress += 1
isFinished = true
} else if index.isCorrect {
self.quiz.progress += 1
isFinished = true
} else {
success = false
}
}
}
}
NavigationLink {
QuestionView(quiz: quiz, question: quiz.questions[quiz.progress])
} label: {
PrimaryButton(text: "Continuer")
}
//.disabled(!isFinished)
}
.padding(.vertical, 60)
.navigationBarHidden(true)
}
}
以下是测验模型:
class Quiz: Identifiable {
let id = UUID()
let name: String
let illustration: String
let difficulty: Difficulty
let questions: [Question]
var score: Int
var progress: Int
init(name: String, illustration: String, difficulty: Difficulty, questions: [Question], score: Int, progress: Int) {
self.name = name
self.illustration = illustration
self.difficulty = difficulty
self.questions = questions
self.score = score
self.progress = progress
}
}
extension Quiz {
static let examples: [Quiz] = [
Quiz(
name: "Quiz n°1",
illustration: "Picture1",
difficulty: .easy,
questions: Question.allQuestions1,
score: 0,
progress: 0
),
Quiz(
name: "Quiz n°2",
illustration: "Picture2",
difficulty: .intermediate,
questions: Question.allQuestions2,
score: 0,
progress: 0
),
Quiz(
name: "Quiz n°3",
illustration: "Picture3",
difficulty: .advanced,
questions: Question.allQuestions3,
score: 0,
progress: 0
)
]
}