ios 与js交互

创建WkWebView

//js调用oc       例如 点击WkWebView内一个js编写的按钮  触发oc内操作

    /// 偏好设置,涉及JS交互

    WKWebViewConfiguration * configuration = [[WKWebViewConfiguration alloc] init];

    configuration.preferences= [[WKPreferencesalloc]init];

    configuration.preferences.javaScriptEnabled = YES;

    configuration.preferences.javaScriptCanOpenWindowsAutomatically = NO;

    configuration.processPool= [[WKProcessPoolalloc]init];

    configuration.allowsInlineMediaPlayback = YES;

    //    if (iOS9()) {

    //        /// 缓存机制(未研究)

    //        configuration.websiteDataStore = [WKWebsiteDataStore defaultDataStore];

    //    }

    configuration.userContentController = [[WKUserContentController alloc] init];

    WKWebView*wkWebView = [[WKWebViewalloc]initWithFrame:CGRectMake(0,0,self.width,self.height)configuration:configuration];

    wkWebView.navigationDelegate = self;

    wkWebView.UIDelegate=self;

    [selfaddSubview:wkWebView];

    self.wkWebview= wkWebView;

    [self.wkWebview loadRequest:[NSURLRequest requestWithURL:[NSURL URLWithString:self.url]]];

    WKUserContentController *ContentController = self.wkWebview.configuration.userContentController;

    [ContentControlleraddScriptMessageHandler:selfname:@"didclickflyjidimap"];///didclickflyjidimap 是与前端协议方法名

    [ContentControlleraddScriptMessageHandler:selfname:@"didclickimg"];

    [ContentControlleraddScriptMessageHandler:selfname:@"didclickIpone"];

    [ContentControlleraddScriptMessageHandler:selfname:@"didlogin"];

////////////

//触发方法时操作

- (void)userContentController:(nonnullWKUserContentController*)userContentController didReceiveScriptMessage:(nonnullWKScriptMessage*)message {

    if ([message.name isEqualToString:@"didclickflyjidimap"]) {

        NSArray*arr =  message.body;

        if(arr.count>0) {

            [selfgoMapWithX:arr[0]withY:arr[1]];

        }

    }elseif([message.nameisEqualToString:@"didclickimg"]){

        NSArray*arr =  message.body;

        if(arr.count>0) {

            [selffadaTuLiuLan:arr[0]];

        }

    }elseif([message.nameisEqualToString:@"didclickIpone"]){

        NSArray*arr =  message.body;

        if(arr.count>0) {

            [selfboDaIpone:arr[0]];

        }

    }elseif([message.nameisEqualToString:@"didlogin"]){

            BOOLyesNO = [selfjianChaYeNoLogin];

            if(yesNO ==YES){

            }else{

                //这里是已经登录了的

                [self.wkWebview evaluateJavaScript:@"page.gotoUrl()" completionHandler:nil];

            }

    }

}

///////////

// oc调用js      [self.flyJiDi_wkWebview evaluateJavaScript:@"oneClick()" completionHandler:nil];

/*  js端代码

 $(".jiaohu").on("click", function () {

 alert("js://webview?arg1=111&arg2=222");

 oneClick();

 })

 function oneClick() {

 //didclickflyjidimap();

 window.webkit.messageHandlers.didclickflyjidimap.postMessage(["2017-12-28","17:18"]);

 }

 */