volumeWarningSliderImage
The image used to designate the European Union volume limit.
Declaration
var volumeWarningSliderImage: UIImage? { get set }Discussion
The system displays the image contained by this property on top of the maximumVolumeSliderImage(for:). The image must be visually distinct from the maximumVolumeSliderImage and use a color similar to the default in order to convey a sense of warning to the user.
For testing purposes, set the EU Volume Limit setting in the Developer menu of the Settings app to always enable the volume limit.