在UIWebView中加载脱机内容

Question

我在一个字符串中缓存UIWebView的HTML内容并尝试在应用程序离线时加载

 if ([hostReach hostConnectionStatus] == NotReachable) {
        NSString *cachedResponse = [[NSString alloc] initWithData:[self responseHTMLData] encoding:NSNEXTSTEPStringEncoding];
        [webView loadHTMLString:cachedResponse baseURL:final_url];

    }

cachedResponse是一个HTML数据，但问题是UIWebView无法加载此数据

// WebView Delegate
- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType {
   return YES;
}
- (void)webView:(UIWebView *)webView didFailLoadWithError:(NSError *)error {
   // error description "connection is offline"
}

如何在离线

时在UIWebVIew中加载HTML内容

Answer 1

HTML文件中引用的所有资源也必须进行缓存，baseURL必须是这些缓存资源的路径。

Answer 2

 NSString *pathLogo = @"Your Directory Path";
NSURL *baseURL_Logo = [NSURL fileURLWithPath:pathDir];
NSMutableString *contentHTML = [[NSMutableString alloc] init];
[contentHTML appendFormat:@"<img src=\"%@Image.png\"/>\n",baseURL_Logo];