Hello everyone, I am trying to get image height an...

# multiplatform

[Djuro]

Hello everyone,
I am trying to get image height and width that is selected from gallery.
Works fine on Android but in iOSMain module there are issues.
Size of the selected image is returned as 0 for height and 2.233E-321 for width.
Code in 🧵

[Djuro]

object :
            NSObject(),
            UIImagePickerControllerDelegateProtocol,
            UINavigationControllerDelegateProtocol {
            override fun imagePickerController(
                picker: UIImagePickerController,
                didFinishPickingMediaWithInfo: Map<Any?, *>,
            ) {
                val image =
                    didFinishPickingMediaWithInfo.getValue(
                        UIImagePickerControllerEditedImage,
                    ) as? UIImage ?: didFinishPickingMediaWithInfo.getValue(
                        UIImagePickerControllerOriginalImage,
                    ) as? UIImage
                val imageAsNsData = image?.let { UIImagePNGRepresentation(it) }

                imageAsNsData?.let { scopedImageAsNsData ->

                    image?.let { scopedImage ->
                        val size: CGSize = scopedImage.size.useContents { this }
                        Logger.e("00x99 $size")
                        Logger.e("00x99 h: ${size.height}")
                        Logger.e("00x99 w: ${size.width}")

                        continuation?.resume(
                            GalleryManager.DataWithByteArray(
                                data = Data(scopedImageAsNsData),
                                byteArray = scopedImageAsNsData.toByteArrayOrNull(),
                                ratio = (size.height/size.width).toFloat(),
                            ),
                        )
                    }
                }
            }
        }

[Pamela Hill]

I'd suggest reading the UIKit UIImage docs: https://developer.apple.com/documentation/uikit/uiimage

[Pamela Hill]

I don't have the answer, but maybe it' resizable?

[Djuro]

Issue was in unpacking a CValue scopedImage.size.useContents
It works like this

val height = scopedImage.size.useContents { this.height }

val width = scopedImage.size.useContents { this.width }

[Pamela Hill]

Oh fascinating! 🙂 Thanks for sharing!