下载文件WKWebView ios

Question

我正在将我的应用程序从UIWebView迁移到WKWebView.一切顺利,我正在努力修补它.但是,我现在注意到我无法下载论坛附件.

我正在使用HCDownload,到目前为止我一直都很完美,所以我知道它不是为了这个目的.我相信它的要求,但我无法弄明白.

我知道以下内容:

UIWebView => WKWebView Equivalent
--------------------------------------------------------------
didFailLoadWithError => didFailNavigation
webViewDidFinishLoad => didFinishNavigation
webViewDidStartLoad => didStartProvisionalNavigation
shouldStartLoadWithRequest => decidePolicyForNavigationAction

所以我知道我在下面尝试:

- (void)webView:(WKWebView *)webView decidePolicyForNavigationAction:(WKNavigationAction *)navigationAction decisionHandler:(void (^)(WKNavigationActionPolicy))decisionHandler {

    NSURLRequest *request = navigationAction.request;
    NSURL *fileURl = [request URL];
    NSString *externalFileExtension = [fileURl pathExtension];
    NSString *internalFileExtension = [[fileURl absoluteString] pathExtension];

    HCDownloadViewController *dlvc = [[HCDownloadViewController alloc] init];
    UINavigationController *vc = [[UINavigationController alloc] initWithRootViewController:dlvc];
    dlvc.delegate = self;
    vc.transitioningDelegate  = self;

    if (navigationAction.navigationType == WKNavigationTypeLinkActivated) {

        //External file extensions
        if ([fileExtensions containsObject:[externalFileExtension lowercaseString]]) {
            [dlvc downloadURL:fileURl userInfo:nil];
            [self presentViewController:vc animated:YES completion:nil];
            [vc release];

            NSLog(@"externalURL is %@", fileURl);
            decisionHandler(WKNavigationActionPolicyCancel);
            return;
        }

        //Internal file links
        if ([fileExtensions containsObject:[internalFileExtension lowercaseString]]) {
            [self presentViewController:vc animated:YES completion:nil];
            [dlvc downloadURL:fileURl userInfo:nil];
            [vc release];

            NSLog(@"internalURL is %@", fileURl);
            decisionHandler(WKNavigationActionPolicyCancel);
            return;

        }
}

它将通过查找文件扩展名来激活我的下载控制器,但它会下载index.php,而不是文件.

示例网址:

https://example.com/index.php?app=core&module=attach&section=attach&attach_id=1234=example.zip;

我究竟做错了什么.它在UIWebView之前运行良好,我知道事情的完成方式不同.但是如何从dropbox下载一些东西就好了,但论坛上的附件文件却变得蠢蠢欲动.

任何帮助,将不胜感激

Answer 1

嗯,继续我最终的结果,似乎一切正常.

- (void)webView:(WKWebView *)webView decidePolicyForNavigationResponse:(WKNavigationResponse *)navigationResponse decisionHandler:(void (^)(WKNavigationResponsePolicy))decisionHandler{
    NSHTTPURLResponse *response = (NSHTTPURLResponse *)navigationResponse.response;
    NSArray *cookies =[NSHTTPCookie cookiesWithResponseHeaderFields:[response allHeaderFields] forURL:response.URL];
    for (NSHTTPCookie *cookie in cookies) {
        [[NSHTTPCookieStorage sharedHTTPCookieStorage] setCookie:cookie];
    }

    decisionHandler(WKNavigationResponsePolicyAllow);
    //NSLog(@"decidePolicyForNavigationResponse");
}


//Download manager
- (void)webView:(WKWebView *)webView decidePolicyForNavigationAction:(WKNavigationAction *)navigationAction decisionHandler:(void (^)(WKNavigationActionPolicy))decisionHandler {

    NSURLRequest *request = navigationAction.request;
    fileURL = request.URL;

    HCDownloadViewController *dlvc = [[HCDownloadViewController alloc] init];
    UINavigationController *vc = [[UINavigationController alloc] initWithRootViewController:dlvc];
    vc.transitioningDelegate  = self;
    dlvc.delegate = self;

    if (navigationAction.navigationType == WKNavigationTypeLinkActivated) {

        //Internal file links
        NSString *internalFileExtension = fileURL.absoluteString.pathExtension;
        if ([fileExtensions containsObject:[internalFileExtension lowercaseString]]) {

            //Fire download
            [dlvc downloadURL:fileURL userInfo:nil];
            [self presentViewController:vc animated:YES completion:nil];
            [vc release];

            NSLog(@"internalURL is %@", fileURL);
            if (decisionHandler) {
                decisionHandler(WKNavigationActionPolicyCancel);
            }
            return;
        }

        //External file extensions
        NSString *externalFileExtension = fileURL.pathExtension;
        if ([fileExtensions containsObject:[externalFileExtension lowercaseString]]) {

            //Fire download
            [dlvc downloadURL:fileURL userInfo:nil];
            [self presentViewController:vc animated:YES completion:nil];
            [vc release];

            NSLog(@"externalURL is %@", fileURL);
            if (decisionHandler) {
                decisionHandler(WKNavigationActionPolicyCancel);
            }
            return;
        }
    }

    if (decisionHandler) {
        decisionHandler(WKNavigationActionPolicyAllow);
    }
}