I'm using AFHTTPRequestOperation to download a file. But on pausing and resuming the operation, the api gives incorrect progress count. I am downloading data using following code
NSURLRequest *request = [NSURLRequest requestWithURL:[NSURL URLWithString:str]];
_downloadOperation = [[AFHTTPRequestOperation alloc] initWithRequest:request];
_downloadOperation.outputStream = [NSOutputStream outputStreamToFileAtPath:strFilePath append:YES];
[_downloadOperation setDownloadProgressBlock:^(NSUInteger bytesRead, long long totalBytesRead, long long totalBytesExpectedToRead) {
NSLog(@"Progress %lld",totalBytesRead * 100 / totalBytesExpectedToRead);
}];
[_downloadOperation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) {
NSLog(@"downloaded %@",operation.request.URL);
} failure:^(AFHTTPRequestOperation *operation, NSError *error) {
NSLog(@"failed");
}];
[_downloadOperation start];
I pause the operation when user goes in background,
- (void)applicationDidEnterBackground:(UIApplication *)application
{
if ([objAPI.downloadOperation isExecuting])
[objAPI.downloadOperation pause];
}
and resume operation when user comes in foreground
- (void)applicationWillEnterForeground:(UIApplication *)application
{
if ([objAPI.downloadOperation isPaused])
[objAPI.downloadOperation resume];
}
Example: If the operation is paused at progress 20% , on resuming it starts from 20% but ends at 120% . In other words the progress count goes incorrectly after pausing the operation.
Kindly help me to solve the problem
