1 class DRAlert: UIView {
 2     
 3     @IBOutlet weak var titleLabel: UILabel!
 4     @IBOutlet weak var messLabel: UILabel!
 5     @IBOutlet weak var layoutC1: NSLayoutConstraint!
 6     @IBOutlet weak var layoutC2: NSLayoutConstraint!
 7     
 8     private var cancelBlock: (() -> ()) = {};
 9     private var confirmBlock: (() -> ()) = {};
10 
11     override func awakeFromNib() {
12         super.awakeFromNib();
13         self.layoutC1.constant = 0.5;
14         self.layoutC2.constant = 0.5;
15         self.frame = UIScreen.mainScreen().bounds;
16         self.autoresizingMask = UIViewAutoresizing.None;
17     }
18 
19     internal class func alert(title: String?, mess: String?, cancelBlock: (() -> ()), confirmBlock: (() -> ())) -> (DRAlert) {
20         let alert = NSBundle.mainBundle().loadNibNamed("DRAlert", owner: nil, options: nil).first as! DRAlert;
21         alert.titleLabel.text = title;
22         alert.messLabel.text = mess;
23         alert.cancelBlock = cancelBlock;
24         alert.confirmBlock = confirmBlock;
25         return alert;
26     }
27 
28     internal func show() -> () {
29         UIApplication.sharedApplication().keyWindow?.addSubview(self);
30     }
31 
32     internal func diss() -> () {
33         self.removeFromSuperview();
34     }
35 
36     @IBAction func cancelButtonClick() {
37         self.diss();
38         self.cancelBlock();
39     }
40     
41     @IBAction func confirmButtonClick() {
42         self.diss();
43         self.confirmBlock();
44     }
45 }