MPVolumeSettingsAlertShow()
Displays an alert panel for controlling the system volume.
Declaration
func MPVolumeSettingsAlertShow()Discussion
The alert panel displayed by this function floats above the contents of the current window. It contains a slider for adjusting the system volume setting and a Done button so that the user can dismiss the panel. You can also dismiss the panel programmatically using the MPVolumeSettingsAlertHide() function.