If you set SelectedDate when the Calendar control is created, does not take any effect in the UI on iOS.
As a workaround, set SelectedDate at a later stage.
It would be handy to enable dates/disable dates based on an array of dates.
I have a situation where drivers are scheduled jobs that may exclude days within a 3-week period. Currently I can only select set the minimum and maximum dates for this period which allows them to select dates where no work is scheduled. Consequently my code must check if the selected date "is valid" before allowing displaying the jobs for the selected date.
Obviously it would be far easier if those dates were never enabled in the first place.
"All day" translation in calendar - refer to the attached image