How can I check whether dark mode is enabled in iOS/iPadOS?

Question

Starting from iOS/iPadOS 13, a dark user interface style is available, similar to the dark mode introduced in macOS Mojave. How can I check whether the user has enabled the

Answer 1

in objective-c you'd want to do:

if( self.traitCollection.userInterfaceStyle == UIUserInterfaceStyleDark ){

        //is dark
}else{

    //is light

}