Swift - 给图片添加图片水印

使用样例

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import UIKit

 

class ViewController: UIViewController {

 

    @IBOutlet weak var imageView: UIImageView!

     

    override func viewDidLoad() {

        super.viewDidLoad()       

         

        //给图片添加水印

        imageView.image = UIImage(named:"bg")?

            .waterMarkedImage(UIImage(named: "logo7")!,corner: .TopLeft,

                margin: CGPoint(x: 20, y: 20), alpha:1)

    }

 

    override func didReceiveMemoryWarning() {

        super.didReceiveMemoryWarning()

    }

}