`dmTraitCollectionDidChange(_ previousTraitCollection: DMTraitCollection?)` not called

[lifution]

iOS 13 and newer, method dmTraitCollectionDidChange(_ previousTraitCollection: DMTraitCollection?) not called after overrideTraitCollection updated.
This problem appeared in UIImageView and UILabel.
FluentDarkModeKit version: 1.0.3

[levinli303]

This is expected. The following classes are known to not call UIView's traitCollectionDidChange thus dmTraitCollectionDidChange cannot be bridged.

UIView subclasses: UIImageView, UILabel, UIDatePicker, UIPickerView
UIViewController subclass: UISplitViewController

My suggestion to fix it would be either:

1. Avoid subclassing these classes, but create a container view for the classes to handle dmTraitCollectionDidChange
2. Override traitCollectionDidChange and apply the same logic on iOS 13

[lifution]

@levinli303 Get it, thanks.