Save draft?

[steelzeh]

I have looked but can't seem to find a way to save the drawing and load it back in for later reuse.

Say i draw something, but instead of saving it as a UIImage i want to save each layer, and load them back in later, so i can erase or keep on drawing.

Tried extracting layer.sublayers and saving it and reloading everything, but it gets f*cked.

[e7711bbear]

This is indeed missing. I haven't looked a this project in a while but you could look into NSCoding. I'll try to see if I can add this next week.

[jforward5]

I am also trying to save the Layers to disk for reuse later. I thought that this would work for loading and saving, but something is not quite right:

for Saving:
`func saveImage(imagePath: String, image: ATShapeLayer) {
let paths = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask)
let documentsDirectoryURL = paths.first!.appendingPathComponent("PrivateDocuments")
let imageURL = documentsDirectoryURL.appendingPathComponent(imagePath)

    do {
        let data = try NSKeyedArchiver.archivedData(withRootObject: image, requiringSecureCoding: false)
        try data.write(to: imageURL)
    } catch {
        print("couldn't save layer")
    }
    
}`

For loading:
`func loadImage(image: String) -> ATShapeLayer {
let paths = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask)
let documentsDirectoryURL = paths.first!.appendingPathComponent("PrivateDocuments")
let imageURL = documentsDirectoryURL.appendingPathComponent(image)
var newDrawing: ATShapeLayer?
do {
let codedData = try? Data(contentsOf: imageURL)
if codedData == nil {
let blankLayer = ATShapeLayer()
saveImage(imagePath: image, image: blankLayer)
newDrawing = blankLayer
} else {
newDrawing = try NSKeyedUnarchiver.unarchiveTopLevelObjectWithData(codedData!) as? ATShapeLayer
}

    } catch {
        print("couldn't load layer")
    }
    if newDrawing == nil {
        newDrawing = ATShapeLayer()
    }
    return newDrawing!
}`

When I tried as a CALayer it gives an error right away when loading from disk, and when saving.

[jforward5]

This is indeed missing. I haven't looked a this project in a while but you could look into NSCoding. I'll try to see if I can add this next week.

Did you ever get this working?