iOS AFNetworking descarga el cálculo de ProgressBlock devolviendo números negativos
Estoy utilizando AFNetworking para descargar datos que se analizan con una clase de terceros. He usado AFNetworking para realizar acciones similares muchas veces antes, pero por alguna razón, cuando llamo a downloadProgressBlock y hago el cálculo para usar con mi barra de progreso, los números están regresando en negativo. Vea abajo:
2013-09-22 16:04:06.036 Portland Police[2228:60b] Download = -31849.000000
2013-09-22 16:04:06.041 Portland Police[2228:60b] Download = -40537.000000
2013-09-22 16:04:06.042 Portland Police[2228:60b] Download = -44881.000000
2013-09-22 16:04:06.044 Portland Police[2228:60b] Download = -53569.000000
2013-09-22 16:04:06.046 Portland Police[2228:60b] Download = -62257.000000
2013-09-22 16:04:06.048 Portland Police[2228:60b] Download = -63705.000000
2013-09-22 16:04:06.085 Portland Police[2228:60b] Download = -70945.000000
2013-09-22 16:04:06.087 Portland Police[2228:60b] Download = -89769.000000
2013-09-22 16:04:06.089 Portland Police[2228:60b] Download = -94113.000000
2013-09-22 16:04:06.100 Portland Police[2228:60b] Download = -98457.000000
2013-09-22 16:04:06.104 Portland Police[2228:60b] Download = -102801.000000
2013-09-22 16:04:06.111 Portland Police[2228:60b] Download = 1.000000
A continuación se muestra mi código:
// Get the URL we are going to use to parse with
AFHTTPClient *httpClient = [[AFHTTPClient alloc] initWithBaseURL:[NSURL URLWithString:@"http://www.portlandonline.com/scripts/911incidents.cfm"]];
NSURLRequest *request = [httpClient requestWithMethod:@"GET" path:nil parameters:nil];
AFHTTPRequestOperation *operation = [httpClient HTTPRequestOperationWithRequest:request success:^(AFHTTPRequestOperation *operation, id responseObject) {
NSLog(@"Response = %@", operation);
// Empty our calls out
[self.originalArray removeAllObjects];
// Initiate our parser
MWFeedParser *parser = [[MWFeedParser alloc] init];
parser.delegate = self;
[parser startParsingData:responseObject textEncodingName:[operation.response textEncodingName] withCompletionHandler:^(NSError *error, MWFeedParser *parser) {
// If theres no error
if (!error) {
// Return the success block
success(operation.request, operation.request.URL, self.calls);
}
else {
// Return the failure block
failure(operation.request, operation.request.URL, error);
}
}];
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
NSLog(@"AFHTTPRequestOperation Failure: %@", error);
// Return our failure block
failure(operation.request, operation.request.URL, error);
}];
[operation setDownloadProgressBlock:^(NSUInteger bytesRead, long long totalBytesRead, long long totalBytesExpectedToRead) {
NSLog(@"Download = %f", (float)totalBytesRead / totalBytesExpectedToRead);
}];
[operation start];