共享我编辑的 UIImage 时 UIActivityViewController 崩溃，但适用于 UIImage(named:)

Question

我正在使用以下代码将两张图片合二为一

func combineImages() {

    //reset tent image
    self.tempImageView.image = self.selectedTent

    let size = CGSize(width: self.tempImageView.image!.size.width, height: self.tentImageView.image!.size.height)
    UIGraphicsBeginImageContext(size)

    let areaSize = CGRect(x: 0, y: 0, width: size.width, height: size.height)
    if let selected = self.selectedBackground {
        selected.scaleImageToSize(newSize: CGSize(width: areaSize.width, height: areaSize.height)).draw(in: areaSize)
    }

    self.tempImageView.image!.draw(in: areaSize, blendMode: CGBlendMode.normal, alpha: 0.8)

    self.combinedImage = UIGraphicsGetImageFromCurrentImageContext()!
    UIGraphicsEndImageContext()

    self.tempImageView.image = combinedImage
}

如果我尝试使用 UIAcitivityViewController 共享此组合图像，则会弹出共享 sheet，但是当我 select 一个应用程序（例如 Slack）时，图像预览需要一段时间才能加载，该图像未显示在预览中，几秒钟后共享弹出窗口 window 刚刚关闭。这是我用来分享的代码

if let imageToShare = self.combinedImage {

        let imageToShareArray = [ imageToShare ]
        let activityViewController = UIActivityViewController(activityItems: imageToShareArray, applicationActivities: nil)
        activityViewController.popoverPresentationController?.sourceView = view

        // present the view controller
        self.present(activityViewController, animated: true, completion: nil)
    }

如果我使用 UIImage(named:) 而不是使用我的 combinedImage 对象创建图像，它一切正常并且我能够共享。

当我使用我想要的图像时，我在 XCode

的输出 window 中也看到了这个错误

2018-09-04 10:45:28.219428-0600 MyApp[7393:4245932] [Common] _BSMachError: port 13817; (os/kern) invalid capability (0x14) "Unable to insert COPY_SEND"

如有任何帮助，我们将不胜感激。

Answer 1

首先尝试将新图像转换为数据：

if let imageToShare = self.combinedImage, let dataImage = UIImageJPEGRepresentation(imageToShare, 0.8) {

   let imageToShareArray = [dataImage]
   let activityViewController = UIActivityViewController(activityItems: imageToShareArray, applicationActivities: nil)
   activityViewController.popoverPresentationController?.sourceView = view

   // present the view controller
   self.present(activityViewController, animated: true, completion: nil)
}

共享我编辑的 UIImage 时 UIActivityViewController 崩溃，但适用于 UIImage(named:)

UIActivityViewController crashes when sharing an UIImage I edited, but works with UIImage(named:)

xcode

ios

swift

swift3