在操作扩展上处理图像时的崩溃应用程序: iOS 14.0，xCode 12.0

Question

当我处理在动作扩展中的图像时，我遇到了问题：

当我将图像设置为UIPasteboard或处理图像时，它就崩溃了

UIPasteboard.general.image = image
 or
let dataCompress = image.jpegData(compressionQuality: value)!

其信息是：

Thread 2: EXC_RESOURCE RESOURCE_TYPE_MEMORY (limit=16 MB, unused=0x0)

我的环境

xCode 12.0，iPhone11Pro iOS 14.0

有人找到解决办法了吗？非常感谢。

Answer 1

我认为您需要调整图像的大小，因为它显示了图像大小不大于16 MB的错误，请使用此扩展来调整图像的质量。

设newImage = image?.resizeImage(targetSize: CGSize(宽度: 400，高度: 400))让imageData = newImage?.jpeg(.lowest) //将此图像发送到UIPasteboard.general.image

线程2: EXC_RESOURCE RESOURCE_TYPE_MEMORY (limit=16 MB，unused=0x0)

extension UIImage {
 func resizeImage(targetSize: CGSize) -> UIImage? {
  let size = self.size
  let widthRatio = targetSize.width / size.width
  let heightRatio = targetSize.height / size.height
  let newSize = widthRatio > heightRatio ? CGSize(width: size.width * heightRatio, height: size.height * heightRatio) : CGSize(width: size.width * widthRatio, height: size.height * widthRatio)
  let rect = CGRect(x: 0, y: 0, width: newSize.width, height: newSize.height)
  UIGraphicsBeginImageContextWithOptions(newSize, false, 1.0)
  self.draw(in: rect)
  let newImage = UIGraphicsGetImageFromCurrentImageContext()
  UIGraphicsEndImageContext()
  return newImage?
 }
}


public extension UIImage {
  enum JPEGQuality: CGFloat {
    case lowest = 0
    case low   = 0.25
    case medium = 0.5
    case high  = 0.75
    case highest = 1
  }
  /// Returns the data for the specified image in JPEG format.
  /// If the image object’s underlying image data has been purged,
  ///calling this function forces that data to be reloaded into memory.
  /// - returns: A data object containing the JPEG data,
  ///or nil if there was a problem generating the data.
  ///This function may return nil if the image has no data or
  ///if the underlying CGImageRef contains data in an unsupported bitmap format.
  func jpeg(_ jpegQuality: JPEGQuality) -> Data? {
    return self.jpegData(compressionQuality: jpegQuality.rawValue)
  }
}