WKWebView的简单使用，与js交互

import UIKitimport WebKit@objc class BasicWkWebViewController: BasicViewController,WKNavigationDelegate {    var webView: WKWebView?    init(url: String!) {        super.init(nibName: nil, bundle: nil)        let requsetUrl = URL.init(string: url)        let request = URLRequest.init(url: requsetUrl!)        let wkWeb = WKWebView.init(frame: self.view.bounds)        self.view.addSubview(wkWeb)        wkWeb.load(request)        wkWeb.navigationDelegate = self;        self.webView = wkWeb    }    required init?(coder aDecoder: NSCoder) {        fatalError("init(coder:) has not been implemented")    }    func webView(_ webView: WKWebView, decidePolicyFor navigationAction: WKNavigationAction, decisionHandler: @escaping (WKNavigationActionPolicy) -> Void) {        let requeststr = navigationAction.request.mainDocumentURL?.relativeString;        if requeststr?.range(of: "#") != nil{            let data = self.requesParmeter(request: requeststr!)            if let doStr = data["do"]{                let selector = NSSelectorFromString((doStr as! String).appending(":"))                if self.responds(to: selector) {                    self.perform(selector, with: data)                    decisionHandler(WKNavigationActionPolicy.cancel)                }            }        }        decisionHandler(WKNavigationActionPolicy.allow)    }    func requesParmeter(request: String) ->NSDictionary{        let array = request.components(separatedBy: "#")        let requestStr = array.last        return self.getrequestjson(requeststr: requestStr!)    }    func getrequestjson(requeststr: String) ->NSDictionary {        let requestString = requeststr.removingPercentEncoding        let strData = requestString?.data(using: String.Encoding.utf8)        do {            let weatherDic = try JSONSerialization.jsonObject(with: strData!, options: .mutableLeaves)            return weatherDic as! NSDictionary;        } catch { }        return NSDictionary()    }    override func viewDidLoad() {        super.viewDidLoad()        //self.webView.addObserver(self, forKeyPath: "title", options: .new, context: nil)    }    //    override func observeValue(forKeyPath keyPath: String?, of object: Any?, change: [NSKeyValueChangeKey : Any]?, context: UnsafeMutableRawPointer?) {    //        super.observeValue(forKeyPath: keyPath, of: object, change: change, context: context)    //        if keyPath == "title" {    //            self.title = change?[NSKeyValueChangeKey.newKey] as? String    //        }    //    }    override func didReceiveMemoryWarning() {        super.didReceiveMemoryWarning()        // Dispose of any resources that can be recreated.    }//    deinit {//        self.webView?.removeObserver(self, forKeyPath: "title")//    }}//js方法extension BasicWkWebViewController{}

OC版本

-(BOOL)webView:(UIWebView )webView shouldStartLoadWithRequest:(NSURLRequest )request navigationType:(UIWebViewNavigationType)navigationType
{
NSString *requeststr=request.mainDocumentURL.relativeString;
if([requeststr rangeOfString:@”#”].location!=NSNotFound)
{
NSDictionary *data = [self requesParmeter:requeststr];
for (NSString *str in self.webStringArray) {
if (![data.allKeys containsObject:@”do”]) return NO;
// if ([requeststr rangeOfString:str].location != NSNotFound) {
if ([data[@”do”] isEqualToString:str]) {
[self performSelector:NSSelectorFromString([str stringByAppendingString:@”:”]) withObject:data];
return NO;
}
}
}
return YES;
}

//初始化公用参数的数组
- (NSArray *)webStringArray
{
if (_webStringArray == nil) {
_webStringArray = @[];
}
return _webStringArray;
}