I'm trying to convert SKSpriteNode as a PNG image with transparency to Camera Roll.
This saves the image but not with transparency:
let image = UIImage(cgImage: (spriteNode.texture?.cgImage())!)
UIImageWriteToSavedPhotosAlbum(image, nil, nil, nil)
This complains:
Cannot convert value of type 'Data?' to expected argument type 'UIImage'
let image = UIImage(cgImage: (createdCloudShadow.texture?.cgImage())!)
let image2 = UIImagePNGRepresentation(image)
UIImageWriteToSavedPhotosAlbum(image2, nil, nil, nil)
How can I save SKSpriteNode as PNG to camera Roll?
The UIImagePNGRepresentation(_:)
function returns Data?
as can be seen from the documentation.
So you probably just need to rewrite as follows:
let image = UIImage(cgImage: (createdCloudShadow.texture?.cgImage())!)
let imData = UIImagePNGRepresentation(image)
let image2 = UIImage(data: imData)
UIImageWriteToSavedPhotosAlbum(image2, nil, nil, nil)