swift UI专项训练24 构建函数和侦测网页载入事件

     构建一个方法用来载入网页的请求：

func loadurl(url:String ,web:UIWebView){
    let aurl = NSURL(string: url)
        let urlrq = NSURLRequest(URL: aurl!)
        web.loadRequest(urlrq)
    
    }

  @IBOutlet weak var loading: UIActivityIndicatorView!

   //网页开始载入
    func webViewDidStartLoad(webView: UIWebView) {
        loading.startAnimating()
    }
    //网页结束载入
    func webViewDidFinishLoad(webView: UIWebView) {
        loading.stopAnimating()
    }

   //网页开始载入
    func webViewDidStartLoad(webView: UIWebView) {
        loading.startAnimating()
        UIApplication.sharedApplication().networkActivityIndicatorVisible = true
    }
    //网页结束载入
    func webViewDidFinishLoad(webView: UIWebView) {
        loading.stopAnimating()
        UIApplication.sharedApplication().networkActivityIndicatorVisible = false
    }

swift UI专项训练24 构建函数和侦测网页载入事件

原文：http://blog.csdn.net/cg1991130/article/details/43992095