如何在SwiftUI中关闭ResearchKit模式视图？

import ResearchKit

@State private var showResearchKitView = false

Button("打开ResearchKit视图") {
    showResearchKitView = true
}

.sheet(isPresented: $showResearchKitView) {
    ResearchKitView()
}

struct ResearchKitView: UIViewControllerRepresentable {
    func makeUIViewController(context: Context) -> ORKTaskViewController {
        // 创建并配置ResearchKit视图控制器
        let taskViewController = ORKTaskViewController(task: ResearchTask, taskRun: nil)
        taskViewController.delegate = context.coordinator
        return taskViewController
    }
    
    func updateUIViewController(_ uiViewController: ORKTaskViewController, context: Context) {
        // 更新ResearchKit视图控制器
    }
    
    func makeCoordinator() -> Coordinator {
        Coordinator()
    }
    
    class Coordinator: NSObject, ORKTaskViewControllerDelegate {
        // 实现ResearchKit的委托方法
    }
}