Touch and Drag Objects

If you want to touch and drag an object around the screen you can do this by setting the object's center property to the location of your touch.
In this example I have an image (UIImageView) that I want to touch and drag.

Create New Class

import UIKit

class DraggableImage: UIImageView {
    
    override func touchesMoved(touches: Set, withEvent event: UIEvent?) {
        if let touch = touches.first {
            let position = touch.locationInView(superview)
            center = CGPointMake(position.x, position.y)
        }
    }
}

I override touchesMoved and am getting the position of my touch and making the center of my image the same position as my touch.

Setup Image in Xcode

In this example I am using a UIImageView. I dropped an image on my storyboard and I have to make 2 changes.

1. Set the Custom Class
   Set the class to the class that overrides touchesMoved:
   
2. Set Interaction
   Make sure "User Interaction Enabled" is checked. This allows your touchesMoved override to receive touch event messages.
   
   I also unchecked "Multiple Touch" because I'm only using one finger to move my object.

That is it! You should be able to run and move your image. (Written for Xcode 7.3, Swift 2.2)