UIWebView的常用方法

//webview导航栏类型
enum UIWebViewNavigationType : Int {
    
    case LinkClicked
    case FormSubmitted
    case BackForward
    case Reload
    case FormResubmitted
    case Other
}

//webview 分页类型
enum UIWebPaginationMode : Int {
    
    case Unpaginated
    case LeftToRight
    case TopToBottom
    case BottomToTop
    case RightToLeft
}

enum UIWebPaginationBreakingMode : Int {
    
    case Page
    case Column
}

class UIWebView : UIView, NSCoding, UIScrollViewDelegate, NSObjectProtocol {
    
    unowned(unsafe) var delegate: UIWebViewDelegate?
    
    @availability(iOS, introduced=5.0)
    var scrollView: UIScrollView { get }
    
    func loadRequest(request: NSURLRequest)
    func loadHTMLString(string: String!, baseURL: NSURL!)
    func loadData(data: NSData!, MIMEType: String!, textEncodingName: String!, baseURL: NSURL!)
    
    var request: NSURLRequest? { get }
    //重载
    func reload()
　　//停止加载
    func stopLoading()
    //后退
    func goBack()
　　//前进
    func goForward()
    //能否后退
    var canGoBack: Bool { get }
　//能否前进
    var canGoForward: Bool { get }

　//是否在加载

var loading: Bool { get }
 //  和js的交互
func stringByEvaluatingJavaScriptFromString(script: String) -> String? var scalesPageToFit: Bool

@availability(iOS, introduced=3.0)

    var dataDetectorTypes: UIDataDetectorTypes

    @availability(iOS, introduced=4.0)

    var allowsInlineMediaPlayback: Bool // iPhone Safari defaults to NO. iPad Safari defaults to YES

    @availability(iOS, introduced=4.0)

    var mediaPlaybackRequiresUserAction: Bool // iPhone and iPad Safari both default to YES

    @availability(iOS, introduced=5.0)

    var mediaPlaybackAllowsAirPlay: Bool // iPhone and iPad Safari both default to YES

    @availability(iOS, introduced=6.0)

    var suppressesIncrementalRendering: Bool // iPhone and iPad Safari both default to NO

    @availability(iOS, introduced=6.0)

    var keyboardDisplayRequiresUserAction: Bool // default is YES

    @availability(iOS, introduced=7.0)

    var paginationMode: UIWebPaginationMode

    @availability(iOS, introduced=7.0)

    var paginationBreakingMode: UIWebPaginationBreakingMode

    @availability(iOS, introduced=7.0)

    var pageLength: CGFloat

    @availability(iOS, introduced=7.0)

    var gapBetweenPages: CGFloat

    @availability(iOS, introduced=7.0)

    var pageCount: Int { get }

protocol UIWebViewDelegate : NSObjectProtocol {
    
    optional func webView(webView: UIWebView, shouldStartLoadWithRequest request: NSURLRequest, navigationType: UIWebViewNavigationType) -> Bool
    optional func webViewDidStartLoad(webView: UIWebView)
    optional func webViewDidFinishLoad(webView: UIWebView)
    optional func webView(webView: UIWebView, didFailLoadWithError error: NSError)
}