CODEWITHSUNDEEP
iosobjective-cswiftuiviewcontroller
Wraithseeker
Wraithseeker

Reputation: 1904

Showing progressHUD when presenting a new viewController

I am presenting a new ViewController through a storyboard. I am unsure of how do I show a progressHUD during the time it takes to present another ViewController.

My current approach

I am using SVProgressHUD and this is how I did it. The SVProgressHUD do not show up immediately when it is presenting another ViewController.

Main problem with approach

Progress bar is showing only at the end of the presentation of the ViewController instead of immediately.

let mainStoryboard: UIStoryboard = UIStoryboard(name: "Main",bundle: nil)
    var destViewController : UIViewController!
    switch (indexPath.row) {
    case 0:

        SVProgressHUD.show() // This shows the progress bar b
        destViewController = mainStoryboard.instantiateViewControllerWithIdentifier("myViewController") as! UIViewController
        break

Upvotes: 1

Views: 1112

Answers (2)

tounaobun
tounaobun

Reputation: 14857

You can do it programmatically using 

self.presentViewController(destViewController, animated: true) { () -> Void in
    // After presentation finishes.
    SVProgressHUD.dismiss() // dismiss HUD.
}

Upvotes: 1

indrajit
indrajit

Reputation: 129

To hide the progress view you can use the callback '-(void)prepareForSegue:sender:'. This method gets called on the view controller before a new view controller is about to be displayed.

Here is the API reference: https://developer.apple.com/library/ios/documentation/UIKit/Reference/UIViewController_Class/#//apple_ref/occ/instm/UIViewController/prepareForSegue:sender:

Upvotes: 1

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