下载一个文件进度显示

gistfile1.txt

    ASIHTTPRequest *request = [ASIHTTPRequest requestWithURL:[[NSURL alloc]initWithString:@"http://pic10.nipic.com/20101103/3970232_071442037843_2.jpg"]];
    NSLog(@"path:%@",NSHomeDirectory());
    [request setDownloadDestinationPath:[NSHomeDirectory() stringByAppendingPathComponent:@"1.jpg" ]];
    request.delegate = self;
    request.downloadProgressDelegate = self;
    [request startAsynchronous];
}

- (void)setProgress:(float)newProgress
{
    NSLog(@"progress:%f",newProgress);
}