Question

在我的应用程序中，我有UIWebView，我想检测MP3文件是否加载（下载）。所以我使用这个UIWebView委托方法：

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

    NSURL *url = [request URL];


    if ([[[url pathExtension] lowercaseString] isEqualToString:@"mp3"]) {
        [self userDidClickUrl:url];
        return NO;
    }

    return YES;
}

问题是有时URL内部没有mp3字符串，UIWebView打开Native播放器。有可能检测到它吗？我想检测mp3文件何时开始加载。

Answer 1

尝试根据您的请求检测MIMEType - 检查来自响应的MIMEType是否属于以下类型之一：
audio / mp3 || audio / mpeg3 || audio / x-mp3 ||音频/ X-MPEG3

更新：检查一下已经回答：

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

NSURL *url = request.URL; 
NSURLRequest *req  = [NSURLRequest requestWithURL:url]; 
NSURLConnection *conn = [NSURLConnection connectionWithRequest:req delegate:self]; 
[conn start];
return YES; } 

- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response{ 

NSString *mime = [response MIMEType]; 
NSLog(@"%@",mime); }

完整链接：

UIWebView Delegate get MIME Type

UIWebView检测mp3文件加载

1 个答案: