如何将ASIHTTPRequest添加到正在运行的ASINetworkQueue？

Question

我一直在尝试使用ASIHTTP库发出多个下载请求。我能够开始下载第一个请求...但是当我向队列添加另一个ASIHTTPRequest时，它没有下载..你能不能建议下一个下载开始...

-(void)createNewDownloadRequestWithURL:(NSString *)videoURL andProgressIndicator:      (UIProgressView *)progressView andDelegate:(id)delegate
{
ASIHTTPRequest *request;
request = [ASIHTTPRequest requestWithURL:[NSURL URLWithString:videoURL]];
NSString * destFilePath = [[[NSHomeDirectory() stringByAppendingPathComponent:@"Documents"] stringByAppendingPathComponent:@"Videos"] stringByAppendingPathComponent:[videoURL lastPathComponent]];
[request setDownloadDestinationPath:destFilePath];
[request setDownloadProgressDelegate:progressView];
[request setAllowResumeForFileDownloads:YES];
[request setTemporaryFileDownloadPath:[NSString stringWithFormat:@"%@.download",destFilePath]];
[request setUserInfo:[NSDictionary dictionaryWithObjectsAndKeys:[videoURL lastPathComponent],@"name",delegate,@"delegate",nil]];
request.delegate = self;
request.tag = VIDEO_DOWNLOAD_REQUEST;
[networkQueue addOperation:request];

if(!isDownloadOn)
    [networkQueue go];
isDownloadOn = YES;
}

Answer 1

这样做：

[networkQueue go];

而不是：

if(!isDownloadOn)
    [networkQueue go];

isDownloadOn = YES;

添加下载请求时应调用[networkQueue go]。