如何从UIWebView下载doc或pdf文件

Question

我可以向UIWebView.But显示url如何下载文件并将文件从UIWebView保存到文件夹单击下载链接时。

Answer 1

在您的网络视图委托中实施webView:shouldStartLoadWithRequest:navigationType:。如果您收到对您感兴趣的文件的请求，请从该方法返回NO并开始单独NSURLConnection将文件下载到NSData对象中，然后您可以保存该对象。

Answer 2

- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *) request navigationType:(UIWebViewNavigationType)navigationtype
{

    // Will execute this block only when links are clicked
    if( navigationtype == UIWebViewNavigationTypeLinkClicked )
    {
          ...//create NSURLConnection object and save the downloaded bytes in NSData in 
          connectionDidFinishLoading:(NSURLConnection *)connection
    }
}