I am trying to update my iOS app for dark mode, but am having trouble with setting the dark mode colors in code. Upon editing a UITextView, the color I want the text color to be white in dark mode, and black in light mode (which is default label color), but to my knowledge I do not know how to write this in code, how do I do it?
extension AddCardsVC: UITextViewDelegate {
func textViewDidBeginEditing(_ textView: UITextView) {
if #available(iOS 13.0, *) {
definitionInput.textColor = UIColor.(need default label color)
} else {
definitionInput.textColor = UIColor.black
}
if(definitionInput.text == "organizing items into familiar, manageable units; often occurs automatically"){
definitionInput.text = ""
}
}
}
或者使用UIColor.label
获取系统标签颜色。
you have call this line of code , it works fine both dark mode and light mode. goodluck
label.textColor = .none
textView.textColor = UIColor { tc in
switch tc.userInterfaceStyle {
case .dark:
return UIColor.white
default:
return UIColor.black
}
}
This is the easiest way, the UIColor can be passed a closure with traitCollection (TC) and the traitCollection has a property called userInterfaceStyle which tells if the user is using the dark mode, then you just implement switch statement to choose what color you wanna return
textView.textColor = UIColor.placeholderText
you just need to assign UIColor.systemBackground to your UITextView Text Color
textView.textColor = UIColor.systemBackground
it will automatically change text color white in dark mode and text color black in light mode
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