Take 2 photos and merge them in swift 3

Question

In swift 3, I would like to merge two images into a single combined image, like so:

The idea is to pick 2 photos from library or take them with camera. But then having done so, how can the two images be combined together programmatically as shown in the picture above?

Answer 1

This is simplest way to merge 2 photos in single ImageView:

For Example:

    let LeftImage = UIImage(named: "LeftImage.png")
    let RightImage = UIImage(named: "RightImage.png")

    let size = CGSize(width: LeftImage!.size.width, height: LeftImage!.size.height + RightImage!.size.height)
    UIGraphicsBeginImageContextWithOptions(size, false, 0.0)

    LeftImage?.draw(in: CGRect(x: 0, y: 0, width:size.width/2, height: size.height))
    RightImage?.draw(in: CGRect(x: size.width/2, y: 0, width:size.width, height: size.height))

    let newImage:UIImage = UIGraphicsGetImageFromCurrentImageContext()!
    UIGraphicsEndImageContext()
    MergeImageView.image = newImage