CODEWITHSUNDEEP
iosobjective-cuinavigationbar
Rogutin
Rogutin

Reputation: 65

UINavigationItem appearing after a few seconds

I created an Application with a Menu-Structure and want to have a DownloadViewController before initializing the first ViewController.

Therefor i coded in DownloadViewController:

NSURLSessionDataTask *downloadTask = [[NSURLSession sharedSession] dataTaskWithURL:downloadUrl completionHandler:^(NSData * _Nullable data, NSURLResponse * _Nullable response, NSError * _Nullable error) {

    //Doing download stuff ... (still working)

    UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"Main" bundle:nil];
    UIViewController *vc = [storyboard instantiateViewControllerWithIdentifier:@"firstViewController"];
    [vc setModalPresentationStyle:UIModalPresentationFullScreen];

    [self presentViewController:vc animated:YES completion:nil];
}];

[downloadTask resume];

The FirstViewController is presented and all functionalities are still there. But the Menu-Icon in the UINavigationBar is first showing after a few seconds. Can anyone please help me?

Screenshots: NavigationBar after View appeared: enter image description here after waiting nearly 20 seconds: enter image description here

Upvotes: 1

Views: 32

Answers (1)

Marco Santarossa
Marco Santarossa

Reputation: 4066

This is not an answer but just a proposal

I write here to format the comment properly, try to change in this:

NSURLSessionDataTask *downloadTask = [[NSURLSession sharedSession] dataTaskWithURL:downloadUrl completionHandler:^(NSData * _Nullable data, NSURLResponse * _Nullable response, NSError * _Nullable error) {

    //Doing download stuff ... (still working)

    dispatch_async(dispatch_get_main_queue()) {
        UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"Main" bundle:nil];
        UIViewController *vc = [storyboard instantiateViewControllerWithIdentifier:@"firstViewController"];
        [vc setModalPresentationStyle:UIModalPresentationFullScreen];

        [self presentViewController:vc animated:YES completion:nil];
    }
}];

[downloadTask resume];

Upvotes: 1

Related Questions