Email screenshot without saving to camera roll - ios

Question

I have the following code which allows a UIButton to capture a partial screenshot and save it to the camera roll - Thanks Lou Franco :)
// Declare the snapshot boundaries
let top: CGFloat = 100
let bottom: CGFloat = 60
// The size of the cropped image
let size = CGSize(width: view.frame.size.width, height: view.frame.size.height - top - bottom)
// Start the context
UIGraphicsBeginImageContext(size)
// we are going to use context in a couple of places
let context = UIGraphicsGetCurrentContext()!
// Transform the context so that anything drawn into it is displaced "top" pixels up
// Something drawn at coordinate (0, 0) will now be drawn at (0, -top)
// This will result in the "top" pixels being cut off
// The bottom pixels are cut off because the size of the of the context
CGContextTranslateCTM(context, 0, -top)
// Draw the view into the context (this is the snapshot)
view.layer.renderInContext(context)
let snapshot = UIGraphicsGetImageFromCurrentImageContext()
// End the context (this is required to not leak resources)
UIGraphicsEndImageContext()
// Save to photos
UIImageWriteToSavedPhotosAlbum(snapshot, nil, nil, nil)
How would I amend the above code so that:
Another UIButton could capture the same partial screenshot and EMAIL it as an attachment?; and
Another UIButton could capture the same partial screenshot and SMS it as an attachment?
I realise that my questions may make me look lazy, not so, I'm just very green at the moment :)
I've tried scouring the Web and modifying various snippets of code, but I really am stumped!
Many thanks in advance. Your time and effort is greatly appreciated!

Answer 1

The below code will set you up for emailing the image.
let composer = MFMailComposeViewController()
composer.setToRecipients(["someemail#email.com"])
composer.setMessageBody("Body", isHTML: false)
composer.setSubject("Subject")
let imageData = UIImagePNGRepresentation(snapshot)
composer.addAttachmentData(imageData, mimeType: "image/png", fileName:"myImage")
presentViewController(composer, animated: true, completion: nil)
To send it as an SMS it's pretty much the exact same process, except this time you use MFMessageComposeViewController rather than MFMailComposeViewController