![]() You would likely do this with an AVPlayerViewController for example. Another reason to programmatically initialize a VC is when you just want its view added as a sub-view of your current VC. I programmatically present view controllers when I want to customize the animation and/or size of the presented controller. Make sure your View Controller code is showing (option click on ViewController in the Project Navigator). I like to use segues for connecting view controllers in my storyboard, and for easily passing data to the presented VC. Secondly, I would reset the simulator like I mentioned above and try to run my app again. 1.In the last tutorial you made changes to your Xcode project settings to enable Mac Catalyst for your app project.This tutorial is about making some changes to the project to fit better on MacOS without changing the appearance on iPhone or iOS.You are going to cover the basics for Mac Catalyst and the SAP BTP SDK for iOS but using the previously mentioned documentation in combination with this tutorial series you should be well suited to build great business apps.In the beginning you want to change the app flow to have a split view in place when running on Mac Catalyst. ![]() Sometimes it can take up to 15 seconds to launch your app initially. Edit: I think my view controller isn't rendering the text field, button, and label objects. Also, I get the same white screen (minus the back button/menu bar) if I make the Log-In screen the initial view. If you run your app and the iOS simulator is showing a black or white screen, I would first wait a little while. Edit: I was able to run an older tabbed app in xcode 6, so I've probably overlooked something and it would not be due to the update. For more dynamic interfaces, or in cases where there is no dedicated control to initiate the segue, use the methods of UIViewController to present your view controllers." My simulator screen is black or white when the app runs. drag from the Touch Up Inside event to the yellow View Controller icon at the top of the. However, most of the tutorials use Objective-C and/or non-current versions of Xcode. Exploring the iOS SDK Jack Nutting, Fredrik Olsson, David Mark. If you know your app’s navigation at design time, segues are the easiest way to initiate presentations. 7 Many iOS applications make use of Table Views."You can initiate the presentation of a view controller programmatically or using segues. If you followed the instructions in Recipe 4.1 and are now running your app on the iPhone Simulator, youll see just a white screen with no navigation bar. Storyboards allow you to prototype and design multiple view controller views within one file, and also let you create transitions between view controllers. Apple explains it best in their documentation: This change is trivial to make: you copy all that code, paste it into a new subclass of UIView called SharePromptView, then change the class of your view controller’s view to your new subclass. Storyboards are an exciting feature first introduced in iOS 5, which save time building user interfaces for your apps.
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