UIWebView檢測mp3文件加載

Question

在我的應用程序中，我有UIWebView，我想檢測MP3文件是否加載（下載）。 所以我用這個UIWebView委託方法：

- (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; 
} 

的問題是，有時網址是沒有MP3串內部，UIWebView的打開本地播放。有可能檢測到它？我想要檢測何時開始加載mp3文件。

Answer 1

嘗試檢測MIMEType根據您的請求 - 檢查MIMEType從響應是這些種類之一：
audio/mp3 ||音頻/ mpeg3 ||音頻/ x-mp3 ||音頻/ X-MPEG3

更新：檢查這已經回答了：

- (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); } 

全波紋管鏈接：

UIWebView Delegate get MIME Type