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我有一个修饰符，当被点击时会在立即关闭它之前.onTapGesture呈现一个。ImagePicker


@State private var updateInfo = false

var body: some View {
  HStack {
            placeholder.image
                .resizable()
                .aspectRatio(contentMode: .fill)
                .font(.system(size: 16, weight: .medium))
                .frame(width: 100, height: 100)
                .clipShape(Circle())
                .shadow(color: Color.black.opacity(0.1), radius: 1, x: 0, y: 1)
                .onTapGesture {
                    updateInfo.showImagePicker = true
                }
                .sheet(isPresented: $updateInfo.showImagePicker) {
                    ImagePicker(showImagePicker: $updateInfo.showImagePicker, pickedImage: $updateInfo.image, imageData: $updateInfo.imageData)
                }
        }
    }

这是我的图像选择器

import SwiftUI

struct ImagePicker: UIViewControllerRepresentable {
    @Binding var showImagePicker: Bool
    @Binding var pickedImage: Image
    @Binding var imageData: Data
    
    func makeUIViewController(context: UIViewControllerRepresentableContext<ImagePicker>) -> UIImagePickerController {
        
        let imagePicker = UIImagePickerController()
        imagePicker.delegate = context.coordinator
        return imagePicker
        
    }
    
    func updateUIViewController(_ uiViewController: UIImagePickerController, context: Context) {
        return
    }
    
    func makeCoordinator() -> Coordinator {
        Coordinator(self)
    }
    
    class Coordinator: NSObject, UIImagePickerControllerDelegate, UINavigationControllerDelegate {
        
        var parentImagePicker: ImagePicker
        
        init(_ imagePicker: ImagePicker) {
            self.parentImagePicker = imagePicker
        }
        
        func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey : Any]) {
            
            let uiImage = info[UIImagePickerController.InfoKey.originalImage] as! UIImage
            
            parentImagePicker.pickedImage = Image(uiImage: uiImage)
           
            if let mediaImage = uiImage.jpegData(compressionQuality: 0.5) {
                parentImagePicker.imageData = mediaImage
            }
            parentImagePicker.showImagePicker = false
        }
        
        func imagePickerControllerDidCancel(_ picker: UIImagePickerController) {
            parentImagePicker.showImagePicker = false
        }
    }
}

我在控制台中不断收到此错误：<_UIImagePickerPlaceholderViewController: 0x...> 开始/结束外观转换的不平衡调用

不知道我在哪里转换不正确。我有一个带有三个选项卡的选项卡栏视图。最后一个选项卡有一个导航栏项，用于推送详细updateInfo视图。

我点击占位符图像，系统会在立即关闭之前显示图像选择器控制器（有点）。我再次点击它，图像选择器控制器出现。

关于为什么它第一次解雇的想法？

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1 回答 1

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不完全是解决方案的解决方案

我试图调用ImagePickerController视图并不断收到不平衡视图错误。所以我创建了一个完全不同的视图来选择一个新图像。该错误尚未解决，但对我来说问题已解决。

于 2021-01-10T02:34:05.613 回答