Launch screens may not set custom classnames
IosSwiftXcodeUitableviewIos Problem Overview
I tried to add a custom class to my Table View Cell, but after I added it it gives the following error:
I often read that I can't use custom classes in the LaunchScreen but I haven't touched this file. Can anyone help me?
This are my general settings for the main and the launch interface.
I am using Swift.
Ios Solutions
Solution 1 - Ios
Go to the properties of your Main.storyboard and check that Use as Launch Screen isn't selected. It sounds like you have selected it by mistake.
Solution 2 - Ios
iOS 13 note:
Prior to iOS 13, you had both:
Main.storyboardLaunchScreen.storyboard
Starting from iOS 13 by default you have SwiftUI. As a result you no longer have the Main.storyboard. You only have LaunchScreen.storyboard.
As for their differences see here
And perhaps like me, you just saw the word storyboard and jumped right at it and later realized you're not building against Main.storyboard.
The fix is simple and is mentioned in Paulw11 answer
Why that has happened?
It's because SwiftUI has somewhat deprecated the need of storyboards and tends to put focus on using previews as a single source of truth.
If you still want to work with the storyboard then what you have to do is upon creating the project set the 'User Interface' to 'Storyboard':
Solution 3 - Ios
I always have a separate splash screen which is the first view controller app loads.
This is the file where you want to add all the business logical or display spinner / loader etc.
For this to work you have to setup Deployment target of your project as shown.
Note that you can not add any other custom class to LaunchScreen. It is an ViewController to just show while app is about to start. In this phase of app life cycle nothing has yet been started. Its almost similar to static image ( It used to be only static image till iOS7 ). Starting for iOS9 or XCode 7 only it was changed to storyboard previously it used to be XIB file. Hence you can not add custom class objects to LaunchScreen as this is a phase where app is still to be loaded or started.
Solution 4 - Ios
To add on to Yash's comment, this error is misleading. If the Custom Class field is empty for your ViewController then you should also check every object on your view and see if their custom classes are empty as well, you can't even have a custom label set for the Launch Page.
This is what got me and took me a while to figure out, had a custom class set on one of my labels by accident from a cut + paste.
Solution 5 - Ios
I made the same mistake.
WRONG:
Very likely what you intended to do was such:
CORRECT:
Solution 6 - Ios
There are many reasons for this error.
I got this error because launchscreen.storyboard and main.storyboard had same custom class as "viewController.swift".
Try removing the custom class from launchscreen.storyboard.
Solution 7 - Ios
Go to your -> launchScreen.storyboard then got to your -> identity and types -> uncheck the box -> use as launch Screen. Changing it in General -> App Icons and Launch images -> Launch Screen File drop down -> LaunchScreen instead of launchScreen.storyboard won't help(stop) do the above. make sure all your constraints are set properly easier way just copy the constraint settings from your main story board.