PSPDFPageCellImageRequestToken

@protocol PSPDFPageCellImageRequestToken <NSObject>

This protocol contains information about an image request.

  • The expected size of the image, once it will be returned. This size may or may not be equal to the size of the returned image. It is the best available information from the creation time of the image request.

    Declaration

    Objective-C

    @property (readonly, nonatomic) CGSize expectedSize;

    Swift

    var expectedSize: CGSize { get }
  • An image to be displayed while the main image is still loading.

    This could be an image in a lower resolution or one that is not as accurate as the final image.

    Declaration

    Objective-C

    @optional
    @property (readonly, nonatomic, nullable) UIImage *placeholderImage;

    Swift

    optional var placeholderImage: NSImage? { get }
  • Cancels an image request. If the image request is not cancellable this method either does nothing or is not available.

    Declaration

    Objective-C

    - (void)cancel;

    Swift

    optional func cancel()