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  • WKWebView 使用

    .H
    typedef NS_ENUM(int, FromeType) {
        From_MainShop = 1,
        From_Category = 2
    };
    @interface WKWebVC : BaseVC
    @property (nonatomic, strong) NSString *url;
    @property (nonatomic, strong) NSString *titleText;
    @property (nonatomic, assign) BOOL isShippingStatus;
    @property (nonatomic, assign) FromeType fromType;
    @property (nonatomic, copy) void(^checkMySizeResult)(NSString *size);
    @property (nonatomic, assign) BOOL isTabVC;
    @end
    
    .M
    @interface WKWebVC () <WKNavigationDelegate, FBSDKSharingDelegate, LoginDelegate, UILoadingViewDelegate, WKScriptMessageHandler>
    @property (nonatomic, strong) UILoadingView *loadingView;
    @property (weak, nonatomic) IBOutlet UILabel *titleLb;
    @property (weak, nonatomic) IBOutlet UIImageView *titleDiliver;
    @property (weak, nonatomic) IBOutlet UIActivityIndicatorView *indicator;
    @property (nonatomic, strong) WKUserContentController *userContentController;
    @property (weak, nonatomic) IBOutlet UIButton *backBtn;
    @property (nonatomic, strong) WKWebView *webView;
    @end
    
    
    - (void)viewDidLoad {
        [super viewDidLoad];
        [self.indicator setHidesWhenStopped:YES];
        self.titleLb.text=self.titleText;
        
        //配置信息
        WKWebViewConfiguration *config=[[WKWebViewConfiguration alloc] init];
        config.preferences=[[WKPreferences alloc]init];
    //    config.preferences.minimumFontSize = 10;
        config.preferences.javaScriptEnabled = true;
        // 默认是不能通过JS自动打开窗口的,必须通过用户交互才能打开
        config.preferences.javaScriptCanOpenWindowsAutomatically =true;
        // 通过js与webview内容交互配置
         self.userContentController = [[WKUserContentController alloc]init];
        config.userContentController = self.userContentController;
        // 添加一个名称,在JS通过这个名称发送消息
        [config.userContentController addScriptMessageHandler:self name:@"theyub"];
        
        WKWebView *webView = [[WKWebView alloc] initWithFrame:CGRectMake(0, 0, ZKScreenW, ZKScreenH) configuration:config];
        webView.navigationDelegate = self;
        [self.view addSubview:webView];
        self.webView = webView;
        
        self.loadingView=[UILoadingView instanceViewWithSuperView:self.view delegate:self];
        self.loadingView.delegate=self;
        [self.view bringSubviewToFront:self.indicator];
        
        [webView mas_makeConstraints:^(MASConstraintMaker *make) {
            make.top.equalTo(self.titleDiliver.mas_bottom);
            make.leading.equalTo(self.view.mas_leading);
            make.trailing.equalTo(self.view.mas_trailing);
            if (self.isTabVC) {
                make.bottom.equalTo(self.view.mas_bottom).with.offset(-49);
            } else {
                make.bottom.equalTo(self.view.mas_bottom);
            }
        }];
        
        // 获取 url
        if (self.isTabVC) {
            [self getUrlRequest];
        } else {
            HttpManager * httpManager = [HttpManager sharedManager];
            id<GAITracker> tracker = [[GAI sharedInstance] trackerWithTrackingId:GAP_TRACKING_ID];
            NSString *clientid = [tracker  get:kGAIClientId];
            
            self.url = [NSString stringWithFormat:@"%@?app_token=%@&userId=%d&cid=%@&app_equip=ios&language=%@&siteUID=%@&currency=%@&device_type=ios",self.url,httpManager.meInfo.token,httpManager.meInfo.member_id,clientid,[PhoneUtil getCurrentLanguage], [httpManager getCurrentSiteUid], [FileUtil getCurrency].code];
            // @"http://www.ifeng.com";
            NSURL *url=[NSURL URLWithString:self.url];
            [self.webView loadRequest:[self headForRequest:url]];
            [self.loadingView setHidden:YES];
        }
        
        if (self.titleText.length <= 0) {  // 添加KVO监听网页Title 变化
            [self.webView addObserver:self forKeyPath:@"title" options:NSKeyValueObservingOptionNew context:@"WKWebVC"];
        }
    }
    
    - (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary<NSKeyValueChangeKey,id> *)change context:(void *)context {
        if (self.titleText.length <=0 ) {  // 如果 没有标题  取网页的标题
            if ([keyPath isEqualToString:@"title"]) {
                self.titleLb.text = self.webView.title;
            }
        }
    }
    
    // 页面已经消失的时候 移除KVO和命名空间
    - (void)viewDidDisappear:(BOOL)animated {
        [super viewDidDisappear:animated];
        if (!self.isTabVC) {  
            NSArray *vcs = self.navigationController.viewControllers;
            if (vcs.count > 0) {
                UIViewController *lastVC = [vcs lastObject];
                if ([lastVC isKindOfClass:[self class]]) {
                    [self removeScriptAndObserver];
                }
            } else {  // 页面已经消失
                [self removeScriptAndObserver];
            }
        }
    }
    - (void)removeScriptAndObserver {
        @try {
            [self.userContentController removeScriptMessageHandlerForName:@"theyub"];
            [self.webView removeObserver:self forKeyPath:@"title" context:@"WKWebVC"];
        } @catch (NSException *exception) {
            NSLog(@"========%@", exception);
        } @finally {}
    }
    
    - (IBAction)popVC:(id)sender {
        if (self.webView.canGoBack) {
            [self.webView goBack];
            return;
        }
        [self.navigationController popViewControllerAnimated:YES];
    }
    
    
    - (void)userContentController:(WKUserContentController *)userContentController didReceiveScriptMessage:(WKScriptMessage *)message {
        NSLog(@"=============%@", message.body);
        NSString *jsonString = [NSString stringWithFormat:@"%@", message.body];
        if (jsonString.length > 0) {
            NSData *data = [jsonString dataUsingEncoding:NSUTF8StringEncoding];
            NSDictionary *dict = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableContainers error:nil];
            NSLog(@"=============%@", dict);
            NSString *method = parseStringFromDict(@"method", dict);  // 根据方法名判断需要执行的方法
            if ([method isEqualToString:@"webToMobile"]) {
                [self webToMobile:jsonString];
            } else if ([method isEqualToString:@"webToMobileAction"]) {
                [self webToMobileAction:jsonString];
            }
        }
    }
    
    // 获取URL
    - (void)getUrlRequest {
        ExclusiveHttpRequest *req = [[ExclusiveHttpRequest alloc] init];
        [req getExclusiveRequstCallback:^(BOOL success, NSObject *result, NSString *errorMsg) {
            if (success) {
                self.url = (NSString *)result;
                if (self.url .length > 0) {
                    HttpManager * httpManager = [HttpManager sharedManager];
                    id<GAITracker> tracker = [[GAI sharedInstance] trackerWithTrackingId:GAP_TRACKING_ID];
                    NSString *clientid = [tracker  get:kGAIClientId];
                    
                    self.url = [NSString stringWithFormat:@"%@?app_token=%@&userId=%d&cid=%@&app_equip=ios&language=%@&siteUID=%@&currency=%@&device_type=ios",self.url,httpManager.meInfo.token,httpManager.meInfo.member_id,clientid,[PhoneUtil getCurrentLanguage], [httpManager getCurrentSiteUid], [FileUtil getCurrency].code];
                    NSURL *url=[NSURL URLWithString:self.url];
                    
                    [self.webView loadRequest:[self headForRequest:url]];
                    
                    [self.loadingView setHidden:YES];
                } else {
                    [self.loadingView showErrorView];
                }
                
            } else {
                [self.loadingView showErrorView];
                [UIToastUtil showToast:self.view message:errorMsg];
            }
        }];
    }
    
    //返回一个urlRequest 对象,
    - (NSMutableURLRequest*)headForRequest:(NSURL*)url{
        NSMutableURLRequest *request=[[NSMutableURLRequest alloc] initWithURL:url];
        NSString *preferredLang = [PhoneUtil getCurrentLanguage];
        if([preferredLang hasPrefix:@"zh-Hant"]){
            if([[[HttpManager sharedManager] getLocalCountry] isOrderedSameString:@"TW"]){
                preferredLang=@"zh-tw";
            }else if([[[HttpManager sharedManager] getLocalCountry] isOrderedSameString:@"HK"]){
                preferredLang=@"zh-hk";
            }else{
                preferredLang=@"zh-tw";
            }
        }
        
        HttpManager * httpManager = [HttpManager sharedManager];
        [request addValue:[FileUtil getCurrency].code forHTTPHeaderField:@"Currency"];
        [request addValue:preferredLang forHTTPHeaderField:@"Language"];
        
        [request addValue:@"iPhone" forHTTPHeaderField:@"Devtype"];
        [request addValue:[HttpManager sharedManager].UUID forHTTPHeaderField:@"dev_id"];
        
        [request setValue:@"app" forHTTPHeaderField:@"SiteUID"];
        if([httpManager getLocalCountry]){
            [request setValue:[httpManager getLocalCountry] forHTTPHeaderField:@"LocalCountry"];
        }
        if([HttpManager sharedManager].meInfo && [HttpManager sharedManager].meInfo.member_id){
            [request setValue:[NSString stringWithFormat:@"%d",[HttpManager sharedManager].meInfo.member_id] forHTTPHeaderField:@"NewUid"];
        }
        [request setValue:[NSString stringWithFormat:@"%@ %@%@",[[[PhoneUtil alloc] init] getDevice],@"ios",[[UIDevice currentDevice] systemVersion]] forHTTPHeaderField:@"Device"];
        [request setValue:@"shein app" forHTTPHeaderField:@"AppName"];
        [request setValue:@"shein" forHTTPHeaderField:@"AppType"];
        [request setValue:[PhoneUtil getAppVersion] forHTTPHeaderField:@"AppVersion"];
        [request setValue:[FileUtil getCurrency].code forHTTPHeaderField:@"AppCurrency"];
        [request setValue:[PhoneUtil getCountry] forHTTPHeaderField:@"AppCountry"];
        [request setValue:[PhoneUtil getNetWorkStates] forHTTPHeaderField:@"network-type"];
        [request setValue:preferredLang forHTTPHeaderField:@"AppLanguage"];
        
        if([HttpManager sharedManager].meInfo!=nil&&[HttpManager sharedManager].meInfo.token!=nil){
            [request addValue:[HttpManager sharedManager].meInfo.token forHTTPHeaderField:@"token"];
        }
        return request;
    }
    
    // 重新加载
    - (void)didTryAgain {
        if (self.isTabVC) {
            [self getUrlRequest];
        } else {
            [self.webView reload];
        }
    }
    
    // 页面开始加载时调用
    - (void)webView:(WKWebView *)webView didStartProvisionalNavigation:(null_unspecified WKNavigation *)navigation {
        [self.indicator startAnimating];
    }
    // 内容开始加载. 等同于 UIWebViewDelegate: - webViewDidStartLoad:
    - (void)webView:(WKWebView *)webView didCommitNavigation:(null_unspecified WKNavigation *)navigation {
    //     [self.indicator startAnimating];
    }
    // 页面加载完成。 等同于 UIWebViewDelegate: - webViewDidFinishLoad:
    - (void)webView:(WKWebView *)webView didFinishNavigation:(null_unspecified WKNavigation *)navigation {
        [self.indicator stopAnimating];
        [self.loadingView setHidden:YES];
    }
    // 页面加载失败调用  ---- 好像是网络原因失败
    - (void)webView:(WKWebView *)webView didFailProvisionalNavigation:(null_unspecified WKNavigation *)navigation withError:(NSError *)error {
        if (self.isTabVC) {
            [self.loadingView showErrorView];
        }
        [self.indicator stopAnimating];
    }
    // 页面加载失败。 等同于 UIWebViewDelegate: - webView:didFailLoadWithError:
    - (void)webView:(WKWebView *)webView didFailNavigation:(null_unspecified WKNavigation *)navigation withError:(NSError *)error {
        NSLog(@"===============withError");
        [self.indicator stopAnimating];
    }
    #pragma mark - 交互通用方法 -----------------------
    - (void)webToMobile:(NSString *)json {
        NSData *data = [json dataUsingEncoding:NSUTF8StringEncoding];
        NSDictionary *dict = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableContainers error:nil];
        if(dict){
            if (![NSThread isMainThread]) {
                return;
            }
            
            NSString *checkMySize = parseStringFromDict(@"checkMySize", dict);
            NSString *link = parseStringFromDict(@"shareLink", dict);
            NSString *popVC = parseStringFromDict(@"popVC", dict);
            if (checkMySize.length > 0) {    //  check my size
                if (self.checkMySizeResult) {
                    self.checkMySizeResult(checkMySize);
                }
                [self.navigationController popViewControllerAnimated:YES];
            } else if (link.length > 0) {    // 分享
                [[VAShareTool alloc ] shareInViewConroller:self withTitle:@"" description:@"" url:link imageUrl:link image:nil completionHandler:^(UIActivityType  _Nullable activityType, BOOL completed, NSArray * _Nullable returnedItems, NSError * _Nullable activityError) {
                    if (completed) {
                        NSLog(@"completed");
                    } else {
                        NSLog(@"cancel");
                    }
                }];
            } else if ([popVC isEqualToString:@"1"]) {
                [self.navigationController popViewControllerAnimated:YES];
            }
        }
    }
    #pragma mark - 交互新增行为方法 -----------------------
    - (void)webToMobileAction:(NSString *)json {
        NSData *data = [json dataUsingEncoding:NSUTF8StringEncoding];
        NSDictionary *dict = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableContainers error:nil];
        if(dict){
            if ([NSThread isMainThread]) {
                [self pushActionWithDict:dict];
            } else {
                dispatch_async(dispatch_get_main_queue(), ^{
                    [self pushActionWithDict:dict];
                });
            }
        }
    }
    //WKNavigationDelegate
    - (void)webView:(WKWebView *)webView decidePolicyForNavigationAction:(WKNavigationAction *)navigationAction decisionHandler:(void (^)(WKNavigationActionPolicy))decisionHandler {
        
        NSString *actionType = navigationAction.request.URL.host;
        
        if([actionType isEqualToString:@"WebBlogVC.shareDownloadYub"]){//分享app
            [GaUtil addMe:@"BACK BLOGGER" label:nil];
            NSURL *url = [NSURL URLWithString:[NSString stringWithFormat:@"http://m.theyub.com"]];
            NSArray *objectsToShare = @[url];
            UIActivityViewController *controller = [[UIActivityViewController alloc] initWithActivityItems:objectsToShare applicationActivities:nil];
            NSArray *excludedActivities = @[UIActivityTypePrint,
                                            UIActivityTypeCopyToPasteboard,
                                            UIActivityTypeSaveToCameraRoll,
                                            UIActivityTypeAddToReadingList];
            controller.excludedActivityTypes = excludedActivities;
            [self presentViewController:controller animated:YES completion:nil];
        }
        
        
    //    if([request.URL.absoluteString isEqualToString:@"about:blank"]&&navigationType==2){//如果是返回,且是空白页面,则从新刷新页面
    //        dispatch_after(dispatch_time(DISPATCH_TIME_NOW, (int64_t)(1 * NSEC_PER_SEC)), dispatch_get_main_queue(), ^{
    //            [self.webView reload];
    //        });
    //    } else
        
        
        if (self.isTabVC && navigationAction.navigationType == WKNavigationTypeLinkActivated) {
            if (navigationAction.request.URL.absoluteString && ![navigationAction.request.URL.absoluteString containsString:self.url]) {
                UIStoryboard *sb=[UIStoryboard storyboardWithName:@"Setting" bundle:[NSBundle mainBundle]];
                WebViewVC *webVC = [sb instantiateViewControllerWithIdentifier:@"WebViewVC"];
                webVC.url = navigationAction.request.URL.absoluteString;
                [self.navigationController pushViewController:webVC animated:YES];
                decisionHandler(WKNavigationActionPolicyCancel);
                return;
            }
        }
        decisionHandler(WKNavigationActionPolicyAllow);
    }
    - (void)downloadImageWithUrl:(NSString *)urlStr
    {
        NSLog(@"回退----%@",urlStr);
        [[SDWebImageManager sharedManager] downloadImageWithURL:[NSURL URLWithString:[urlStr fixUrlSting]] options:SDWebImageRetryFailed progress:^(NSInteger receivedSize, NSInteger expectedSize) {
            
        } completed:^(UIImage *image, NSError *error, SDImageCacheType cacheType, BOOL finished, NSURL *imageURL) {
            if (finished && nil != image) {
                //            PHAuthorizationStatus status = [PHPhotoLibrary authorizationStatus];
                [PHPhotoLibrary requestAuthorization:^(PHAuthorizationStatus status) {
                    if (status == PHAuthorizationStatusRestricted ||
                        status == PHAuthorizationStatusDenied) {
                        //无权限
                        dispatch_async(dispatch_get_main_queue(), ^{
                            [[UIApplication sharedApplication] openURL:[NSURL URLWithString:UIApplicationOpenSettingsURLString]];
                        });
                    } else{
                        dispatch_async(dispatch_get_main_queue(), ^{
                            UIImageWriteToSavedPhotosAlbum(image, self, @selector(image:didFinishSavingWithError:contextInfo:), (__bridge void *)self);
                        });
                    }
                }];
            }
            if (image == nil) {
                UIAlertController *alert = [UIAlertController alertControllerWithTitle:nil message:[LocalizedUtil getStringByKey:@"string_key_1364"] preferredStyle:UIAlertControllerStyleAlert];
                [alert addAction:[UIAlertAction actionWithTitle:[LocalizedUtil getStringByKey:@"string_key_342"] style:UIAlertActionStyleCancel handler:^(UIAlertAction * _Nonnull action) {
                }]];
                [self presentViewController:alert animated:YES completion:nil];
            }
        }];
    }
    - (void)image:(UIImage *)image didFinishSavingWithError:(NSError *)error contextInfo:(void *)contextInfo
    {
        if (error == nil) {
            UIAlertController *alert = [UIAlertController alertControllerWithTitle:nil message:[LocalizedUtil getStringByKey:@"string_key_1365"] preferredStyle:UIAlertControllerStyleAlert];
            [alert addAction:[UIAlertAction actionWithTitle:[LocalizedUtil getStringByKey:@"string_key_342"] style:UIAlertActionStyleCancel handler:^(UIAlertAction * _Nonnull action) {
            }]];
            [self presentViewController:alert animated:YES completion:nil];
        } else{
            UIAlertController *alert = [UIAlertController alertControllerWithTitle:nil message:getStringByKey(@"string_key_1364") preferredStyle:UIAlertControllerStyleAlert];
            [alert addAction:[UIAlertAction actionWithTitle:[LocalizedUtil getStringByKey:@"string_key_342"] style:UIAlertActionStyleCancel handler:^(UIAlertAction * _Nonnull action) {
            }]];
            [self presentViewController:alert animated:YES completion:nil];
            
        }
        NSLog(@"image = %@, error = %@, contextInfo = %@", image, error, contextInfo);
    }
    - (void)sharer:(id<FBSDKSharing>)sharer didCompleteWithResults:(NSDictionary *)results{
        NSLog(@"didCompleteWithResults");
    }
    - (void)sharer:(id<FBSDKSharing>)sharer didFailWithError:(NSError *)error{
        NSLog(@"didFailWithError,%@",error);
        if(error==nil||[[NSNull null] isEqual:error]){
            [UIToastUtil showToast:self.view message:@"you have not install facebook app."];
        }
    }
    - (void)sharerDidCancel:(id<FBSDKSharing>)sharer{
        NSLog(@"share...");
    }
    #pragma mark - 登录 代理 --------------
    - (void)loginSuccess:(MeInfo*)meInfo {
       
    }
    - (void)registSuccess:(MeInfo*)meInfo {
        
    }
    #pragma mark - 页面跳转 -------------------
    - (void)pushActionWithDict:(NSDictionary *)dict {
        NSString *type_id = parseStringFromDict(@"type_id", dict);
        NSString *tid = parseStringFromDict(@"tid", dict);
        NSString *category_type = parseStringFromDict(@"category_type", dict);
        NSString *title = parseStringFromDict(@"title", dict);
        NSString *popVC = parseStringFromDict(@"popVC", dict);
        
        if (type_id.length > 0) {
            if ([type_id isEqualToString:@"1"]) {  //虚拟分类
                UIStoryboard *sb=[UIStoryboard storyboardWithName:@"Promotions" bundle:[NSBundle mainBundle]];
                PromotionGoodsListVC *vc=[sb instantiateViewControllerWithIdentifier:@"PromotionGoodsListVC"];
                vc.virtual_category_id = tid;
                vc.navTitle = title;
                //                vc.siteFrom = @"shop ";
                vc.categoryType = 1;
                [self.navigationController pushViewController:vc animated:YES];
            } else if ([type_id isEqualToString:@"2"]) {  // 真实分类
                if ([category_type isEqualToString:@"1"]) { // 一级分类
                    UIStoryboard *sb=[UIStoryboard storyboardWithName:@"Category" bundle:[NSBundle mainBundle]];
                    CategoryAllGoodsListVC *vc=[sb instantiateViewControllerWithIdentifier:@"CategoryAllGoodsListVC"];
                    vc.navTitle = title;
                    vc.category = @"";
                    vc.cat_id = tid;
                    //                    vc.siteFrom = @"shop ";
                    [self.navigationController pushViewController:vc animated:YES];
                    
                } else if ([category_type isEqualToString:@"2"]) { // 二级分类
                    UIStoryboard *sb=[UIStoryboard storyboardWithName:@"Category" bundle:[NSBundle mainBundle]];
                    CategoryGoodsListVC *vc=[sb instantiateViewControllerWithIdentifier:@"CategoryGoodsListVC"];
                    vc.navTitle = title;
                    vc.category = @"";
                    vc.cat_id = tid;
                    //                    vc.siteFrom = @"shop ";
                    [self.navigationController pushViewController:vc animated:YES];
                }
            } else if ([type_id isEqualToString:@"11"]) { // 跳登录
                UIStoryboard *sb=[UIStoryboard storyboardWithName:@"Login" bundle:[NSBundle mainBundle]];
                LoginVC *vc=[sb instantiateViewControllerWithIdentifier:@"LoginVC"];
                vc.delegate=self;
                [self presentViewController:vc animated:YES completion:NULL];
                if([tid isEqualToString:@"1101"]){ // 登录
                    vc.doAction=1;
                } else{ // 注册
                    vc.doAction=2;
                }
                [self presentViewController:vc animated:YES completion:NULL];
            } else if ([type_id isEqualToString:@"12"]) { // 商品详情
                GoodsInfo *goodsInfo=[[GoodsInfo alloc] init];
                goodsInfo.goods_id=[tid intValue];
                UIStoryboard *sb=[UIStoryboard storyboardWithName:@"Goods" bundle:[NSBundle mainBundle]];
                GoodsDetailVC *vc=[sb instantiateViewControllerWithIdentifier:@"GoodsDetailVC"];
                vc.goodsInfo=goodsInfo;
                [self.navigationController pushViewController:vc animated:YES];
            }
        } else if (popVC.length > 0) {
            [self.navigationController popViewControllerAnimated:YES];
        }
    }
    
    // 设置 WKWebview 滚动速率 需要使用scroll 代理来做  webView.scrollView.delegate = self;  
    - (void)scrollViewWillBeginDragging:(UIScrollView *)scrollView {
        scrollView.decelerationRate = UIScrollViewDecelerationRateNormal;
    }
    //请求之前,决定是否要跳转:用户点击网页上的链接,需要打开新页面时,将先调用这个方法。 
    - (void)webView:(WKWebView *)webView decidePolicyForNavigationAction:(WKNavigationAction *)navigationAction decisionHandler:(void (^)(WKNavigationActionPolicy))decisionHandler; 
    
    //接收到相应数据后,决定是否跳转 
    - (void)webView:(WKWebView *)webView decidePolicyForNavigationResponse:(WKNavigationResponse *)navigationResponse decisionHandler:(void (^)(WKNavigationResponsePolicy))decisionHandler; 
    
    //页面开始加载时调用 
    - (void)webView:(WKWebView *)webView didStartProvisionalNavigation:(null_unspecified WKNavigation *)navigation; // 主机地址被重定向时调用 - (void)webView:(WKWebView *)webView didReceiveServerRedirectForProvisionalNavigation:(null_unspecified WKNavigation *)navigation; 
    
    // 页面加载失败时调用 
    - (void)webView:(WKWebView *)webView didFailProvisionalNavigation:(null_unspecified WKNavigation *)navigation withError:(NSError *)error; 
    
    // 当内容开始返回时调用 
    - (void)webView:(WKWebView *)webView didCommitNavigation:(null_unspecified WKNavigation *)navigation; 
    
    // 页面加载完毕时调用 
    - (void)webView:(WKWebView *)webView didFinishNavigation:(null_unspecified WKNavigation *)navigation; 
    
    //跳转失败时调用 
    - (void)webView:(WKWebView *)webView didFailNavigation:(null_unspecified WKNavigation *)navigation withError:(NSError *)error; 
    
    // 如果需要证书验证,与使用AFN进行HTTPS证书验证是一样的 
    - (void)webView:(WKWebView *)webView didReceiveAuthenticationChallenge:(NSURLAuthenticationChallenge *)challenge completionHandler:(void (^)(NSURLSessionAuthChallengeDisposition disposition, NSURLCredential *__nullable credential))completionHandler;
    
     //9.0才能使用,web内容处理中断时会触发
     - (void)webViewWebContentProcessDidTerminate:(WKWebView *)webView NS_AVAILABLE(10_11, 9_0);

     
    参考
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  • 原文地址:https://www.cnblogs.com/10-19-92/p/9819951.html
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