Using UserDefaults

Asked Jul 24 '17 at 21:46

Active Jul 24 '17 at 21:53

Viewed 59 times

If I run the following code in a Playground, it correctly prints out "here 1" However, if I run the code in my app using from a class function, it prints out "here". How do I correctly test if I have an array saved?

if let savedArray = UserDefaults.standard.object(forKey: "MyKey") {
    print("here")
}
else {
    print("here 1")
}

edited Jul 24 '17 at 21:53

asked Jul 24 '17 at 21:46

David Ruvinskiy

2

are you sure you haven't saved some value for "MyKey" somewhere? – JAB Jul 24 '17 at 21:48
Yes. I am positive. – David Ruvinskiy Jul 24 '17 at 21:52
if it's printing only "here", then savedArray is not nil. What's its value at that point? – JAB Jul 24 '17 at 21:56
1

As far as I know, playgrounds run in a sandbox so I don't think it is possible to store user defaults persistently across executions, so it will always print "here 1". – Palle Jul 24 '17 at 21:56
If I print the array, () shows up in the console. If I cast it to a different type, [] shows up in the console. I am pretty sure I haven't set the value anywhere else. – David Ruvinskiy Jul 24 '17 at 21:59
I tried using a different value and it works. But I don't think I use "MyKey" anywhere else. – David Ruvinskiy Jul 24 '17 at 22:04
Delete the app from your device or simulator and then reinstall and run it. – Paulw11 Jul 24 '17 at 23:14

Using UserDefaults

0 Answers0