useCupertinoCheckmarkStyle property
final
Whether to use the checkbox style for the CupertinoRadio control.
Only usable under the RadioListTile.adaptive constructor. If set to true, on Apple platforms the radio button will appear as an iOS styled checkmark. Controls the CupertinoRadio through CupertinoRadio.useCheckmarkStyle.
Defaults to false.
Implementation
final bool useCupertinoCheckmarkStyle;