[分享] 使用 swift 实现自适应屏幕代码片段

@IBOutlet weak var wb: UIWebView! @IBOutlet weak var bn_blue: UIButton! @IBOutlet weak var bn_org: UIButton! @IBOutlet weak var lb_msg: UILabel! //var webView : UIWebView? override func viewDidLoad() { super.viewDidLoad() // Do any additional setup after loading the view, typically from a nib. lb_msg.text = self.view.bounds.width.description var width = self.view.bounds.width.description var height = self.view.bounds.height.description var fwidth = (width as NSString).floatValue var fheight = (height as NSString).floatValue//屏幕高度 let sizew:CGFloat = CGFloat(fwidth/2) let posy:CGFloat = CGFloat(fheight-40) let sizewebview:CGFloat = CGFloat(fwidth) let posywebview:CGFloat = CGFloat(fheight-60) let registerBtn : UIButton = UIButton() registerBtn.frame = CGRectMake(0, posy, sizew, 40) registerBtn.backgroundColor = UIColor.orangeColor() registerBtn.setTitle("注册", forState: UIControlState.Normal) registerBtn.addTarget(self, action: "goList:", forControlEvents:UIControlEvents.TouchUpInside) self.view.addSubview(registerBtn) let registerBtn2 : UIButton = UIButton() registerBtn2.frame = CGRectMake(sizew, posy, sizew, 40) registerBtn2.backgroundColor = UIColor.blueColor() registerBtn2.setTitle("登陆", forState: UIControlState.Normal) registerBtn2.addTarget(self, action: "goList:", forControlEvents:UIControlEvents.TouchUpInside) self.view.addSubview(registerBtn2) var webView = UIWebView() var url = NSURL(string:"http://www.baidu.com") var urlRequest = NSURLRequest(URL:url!) webView.frame = CGRectMake(0, 20, sizewebview, posywebview) webView.loadRequest(urlRequest) self.view.addSubview(webView) } @IBAction func goList(sender: AnyObject) { var rootVC :ListViewCOntroller= ListViewController(nibName: "ListViewController", bundle: nil) let NVC :UINavigatiOnController= UINavigationController(rootViewController: rootVC) NVC.setNavigationBarHidden(true, animated: true) self.presentViewController(NVC, animated: true, completion: nil) } override func didReceiveMemoryWarning() { super.didReceiveMemoryWarning() // Dispose of any resources that can be recreated. }