SwiftUI：UIViewRepresentable 小部件预览

Question

要预览 UIViewRepresentable 结构，我有以下代码：

import SwiftUI
import WidgetKit

struct ViewRepresentable: UIViewRepresentable {
  func makeUIView(context: Context) -> UIView {
    return UIView()
  }

  func updateUIView(_ uiView: UIView, context: Context) {

  }

  typealias UIViewType = UIView
}

struct ViewRepresentable_Previews: PreviewProvider {
  static var previews: some View {
    ViewRepresentable().previewContext(WidgetPreviewContext(family: .systemSmall))
  }
}

它输出以下诊断信息。

RemoteHumanReadableError: Failed to update preview

invalid TimelineEntries

错误是“无法在此文件中预览 – 更新预览失败”

如何解决这个错误？

Answer 1

UIKit views wrapped in UIViewRepresentable will not work in WidgetKit.

来源：https://developer.apple.com/forums/thread/653471?answerId=619627022#619627022

SwiftUI：UIViewRepresentable 小部件预览

SwiftUI: UIViewRepresentable widget preview

ios

widgetkit

swiftui