iOS Question Crash in Picker GetSelectedItem(0) with IOS13

[marcick]

Hi all, I'm having problem after an IOS 13 update.

I populate a picker with a list of items

Dim items As List
items.Initialize
items.Add("one")
items.Add("two")
items.Add("three")
items.Add("four")
Pckr1.SetItems(0, items)

Now I choose the last item in the picker.
If I log(Pckr1.GetSelectedItem(0)) I correctly have "four"
Now I want to delete this last item

Dim items as list
items.initialize2(Pckr1.GetItems(0))
items.RemoveAt(items.IndexOf(Pckr1.GetSelectedItem(0)))
Pckr1.SetItems(0,lls)

IOS12: If I log(Pckr1.GetSelectedItem(0)) I correctly have "three"
IOS13: If I log(Pckr1.GetSelectedItem(0)) .... crash

*** -[__NSArrayM objectAtIndexedSubscript:]: index 4 beyond bounds [0 .. 3]

Is my method to remove the last item in the picker incorrect ?

 

[marcick]

Found it.

In IOS 12, removing the last items in the picker, the selected item is automatically set to the prevoious.

In IOS13, after removing the items, a SelectRow is needed

....
items.RemoveAt(items.IndexOf(Pckr1.GetSelectedItem(0)))
Pckr1.SetItems(0,items)
Pckr1.SelectRow(0,items.size-1, False)