IOS WKWebView

import UIKit
import WebKit

class ViewController: UIViewController {

var wk: WKWebView!
override func viewDidLoad() {
super.viewDidLoad()
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}

override func viewDidAppear(animated: Bool) {
super.viewDidAppear(animated)

self.wk = WKWebView(frame: self.view.frame)
self.wk.loadRequest(NSURLRequest(URL: NSURL(string: "http://www.baidu.com/")!))
self.view.addSubview(self.wk)
}
}

<key>NSAppTransportSecurity</key>
<dict>
<key>NSAllowsArbitraryLoads</key>
<true/>
</dict>