CODEWITHSUNDEEP
iphoneiossdkafnetworking
user1237473
user1237473

Reputation: 69

Downloading Files in queue using AFNetworking in iPhone

I need to download multiple files in queue. Right now my code is working and all files are downloading simultaneously, However i need to download one file at a time, and all other files are in queue, below is code, please let me know what i doing wrong. I just need to download one file at a time and all other file should be in queue.

         AFHTTPClient *httpClient = [[AFHTTPClient alloc] initWithBaseURL:videoURL];
         [httpClient.operationQueue setMaxConcurrentOperationCount:1];
         for (NSURL *videoString in videoArray) {

             NSURLRequest *request = [NSURLRequest requestWithURL:videoString];

             AFDownloadRequestOperation *operation = [[AFDownloadRequestOperation alloc] initWithRequest:request targetPath:path shouldResume:YES];
             [operation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) {
                 if(operation.response.statusCode == 200) {

                     UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"Alert" message:@"Successfully Downloaded" delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil];
                     [alertView show];

                  }

             }failure:^(AFHTTPRequestOperation *operation, NSError *error) {

                 if(operation.response.statusCode!= 200) {

                     UIAlertView *alertView = [[UIAlertView alloc] initWithTitle:@"Alert" message:@"Error While Downloaded" delegate:self cancelButtonTitle:@"OK" otherButtonTitles:nil];
                     [alertView show];
                 }
             }];

             [httpClient enqueueHTTPRequestOperation:operation];

             [operation setProgressiveDownloadProgressBlock:^(NSInteger bytesRead, long long totalBytesRead, long long totalBytesExpected, long long totalBytesReadForFile, long long totalBytesExpectedToReadForFile) {

                 float percentDone = ((float)totalBytesRead) / totalBytesExpectedToReadForFile;

                 }
             }];

Upvotes: 3

Views: 3318

Answers (2)

iSpark
iSpark

Reputation: 952

use dispatch queues(GCD) after the block setCompletionBlockWithSuccess:

like following way:

 dispatch_async(dispatch_get_main_queue(), ^{
// Call any method from on the instance that created the operation here.
  [self doSomework]; // example
 });

Upvotes: 0

arun.s
arun.s

Reputation: 1528

To limit the queue to one Operation at a time,

you could try adding dependencies between each operation before you queue them.

Like this

[Operation2 addDependency:Operation1];

Hope that helps!

Upvotes: 1

Related Questions