iOS webView超链接拦截相关

- (void)webView:(WKWebView *)webView decidePolicyForNavigationAction:(WKNavigationAction *)navigationAction decisionHandler:(void (^)(WKNavigationActionPolicy))decisionHandler {
    
    NSLog(@"开始请求: %@ \n\n", navigationAction.request);
    NSLog(@"navigationAction: %@ \n\n", navigationAction);
    
    [self showBigImage:navigationAction.request];
    
    NSString *urlString = [navigationAction.request.URL absoluteString];
    if ([urlString containsString:@"m-web/info/infodetail/"]) {
        
        HPNewsDetailNewVC *newsD = [[HPNewsDetailNewVC alloc] initWithNewsID:[urlString componentsSeparatedByString:@"/"].lastObject];
        [self.navigationController pushViewController:newsD animated:YES];
        
        // 不允许web内跳转
        decisionHandler(WKNavigationActionPolicyCancel);
        
    }else if ([urlString containsString:@"m-web/activity/detail/"]) {
        
        HPAcitivityNewDetailVC *nv = [[HPAcitivityNewDetailVC alloc] initWithID:[urlString componentsSeparatedByString:@"/"].lastObject];
        [self.navigationController pushViewController:nv animated:YES];
        
        // 不允许web内跳转
        decisionHandler(WKNavigationActionPolicyCancel);
        
    }else if ([urlString containsString:@"m-web/train/all/"]) {
        
        HPTrainDetailVC2 *vc = [[HPTrainDetailVC2 alloc] initWithCourseId:[urlString componentsSeparatedByString:@"/"].lastObject courseGuid:nil courseApplyId:nil];
        [self.navigationController pushViewController:vc animated:YES];
        
        // 不允许web内跳转
        decisionHandler(WKNavigationActionPolicyCancel);
        
    }else {
        
        decisionHandler (WKNavigationActionPolicyAllow);
    }
    
//    if (navigationAction.navigationType == WKNavigationTypeLinkActivated) {//跳转别的应用如系统浏览器
//        // 对于跨域，需要手动跳转
////        [[UIApplication sharedApplication] openURL:navigationAction.request.URL];
//
//        //    2.跳转别的应用如系统浏览器（跨域跳转）、应用的web内跳转（不跨域跳转）
//        //    NSString *hostname = navigationAction.request.URL.host.lowercaseString;
//
//    } else {//应用的web内跳转
//        decisionHandler (WKNavigationActionPolicyAllow);
//    }
   
}