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Swift UI:UIHostingController.view 不适合 iOS 13 的内容视图大小

iOS 13 iOS 14

我想根据通信结果更新 Swift UI View。但 UIHostingController.view 不适合 iOS 13 的 rootView 大小。当我尝试使用下面的示例代码时,也会发生同样的情况。我想将自调整大小的 SwiftUI View 添加到 UIStackView,但是 SwiftUI View 与上一个和下一个视图重叠,因为这个问题。我怎样才能避免这个问题?

class ViewController: UIViewController {

    override func viewDidLoad() {
        super.viewDidLoad()
        
        let object = SampleObject()
        let sampleView = SampleView(object: object)
        let hosting = UIHostingController(rootView: sampleView)
        hosting.view.backgroundColor = UIColor.green
        addChild(hosting)
        view.addSubview(hosting.view)
        hosting.view.translatesAutoresizingMaskIntoConstraints = false
        hosting.view.leadingAnchor.constraint(equalTo: view.leadingAnchor).isActive = true
        hosting.view.trailingAnchor.constraint(equalTo: view.trailingAnchor).isActive = true
        hosting.view.topAnchor.constraint(equalTo: view.topAnchor).isActive = true
        hosting.didMove(toParent: self)
        
        DispatchQueue.main.asyncAfter(deadline: .now() + 1.0) {
            object.test()
        }
    }
}


struct SampleView: View {
    @ObservedObject var object: SampleObject …
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ios swift ios13 swiftui uihostingcontroller

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