swift 加载本地html文件的方法

let webView=UIWebView.init(frame: self.view.bounds)

let filePath=NSBundle.mainBundle().pathForResource("reading", ofType: "html")

do {

let htmlString=try NSString.init(contentsOfFile: filePath!, encoding: NSUTF8StringEncoding)

webView.loadHTMLString(htmlString as String  , baseURL: NSURL.fileURLWithPath(filePath!))

self.view.addSubview(webView)

}

catch{

}