widget_picker library Null safety

Classes

CityPicker<T extends IPickerViewData<T>>
CupertinoMonthPicker
CupertinoMonthRangePicker
CupertinoYearPicker
CupertinoYearRangePicker
IPickerViewData<T extends IPickerViewData<T>>

Typedefs

OnCityPickerSelectChanged<T extends IPickerViewData<T>> = dynamic Function(T province, T city, T count)
城市|时间选择器