Swift 是否更改上下文菜单中UIImage的弹出窗口大小？

假设你有一个图像的上下文菜单，当长按时会弹出。如何使弹出窗口变大，但保持相同的尺寸

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您可以向上下文菜单提供自己的预览提供程序。只需创建一个带有图像视图的自定义视图控制器，以便以所需大小预览图像：

import UIKit

class ImagePreviewController: UIViewController {
    private let imageView = UIImageView()
    init(image: UIImage) {
        super.init(nibName: nil, bundle: nil)
        preferredContentSize = image.size
        imageView.contentMode = .scaleAspectFill
        imageView.clipsToBounds = true
        imageView.image = image
        view = imageView
    }
    required init?(coder: NSCoder) {
        super.init(coder: coder)
    }
}

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然后只需将自定义预览提供程序实现添加到

UIContextMenuConfiguration

初始值设定项：

func contextMenuInteraction(_ interaction: UIContextMenuInteraction, configurationForMenuAtLocation location: CGPoint) -> UIContextMenuConfiguration? {
    UIContextMenuConfiguration(identifier: nil) {
        ImagePreviewController(image: self.immy.image!)
    } actionProvider: { _ in
        let share = UIAction(title: "Share", image: UIImage(systemName: "square.and.arrow.up")) { _ in
           // share code
        }
        return UIMenu(title: "Profile Picture Menu", children: [share])
    }        
}

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编辑/更新：

不采取任何行动

func contextMenuInteraction(_ interaction: UIContextMenuInteraction, configurationForMenuAtLocation location: CGPoint) -> UIContextMenuConfiguration? {
    UIContextMenuConfiguration(identifier: nil, previewProvider:  {
        ImagePreviewController(image: self.immy.image!)
    })
}

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评论不用于扩展讨论；这段对话已经结束。嗨，兄弟，我正在使用上下文菜单并添加一些反应按钮，但无法单击，你是否遇到过这个问题？

func contextMenuInteraction(_ interaction: UIContextMenuInteraction, configurationForMenuAtLocation location: CGPoint) -> UIContextMenuConfiguration? {
    UIContextMenuConfiguration(identifier: nil) {
        ImagePreviewController(image: self.immy.image!)
    } actionProvider: { _ in
        let share = UIAction(title: "Share", image: UIImage(systemName: "square.and.arrow.up")) { _ in
           // share code
        }
        return UIMenu(title: "Profile Picture Menu", children: [share])
    }        
}

func contextMenuInteraction(_ interaction: UIContextMenuInteraction, configurationForMenuAtLocation location: CGPoint) -> UIContextMenuConfiguration? {
    UIContextMenuConfiguration(identifier: nil, previewProvider:  {
        ImagePreviewController(image: self.immy.image!)
    })
}