iOS Storing the UISegmentedControl selection in NSUserDefaults

Question

Is there some way to store a UISegmentedControl value into NSUserDefaults? Should I use it like the integer value in NSUserDefaults?

Answer 1

You'd simply use the selectedSegmentIndex: method of the UISegmentedControl and then use the setInteger:forKey: method within NSUserDefaults. The reason for this (as you seem to be hinting at in your question) is that the selectedSegmentIndex method returns an NSInteger. (Its full method signature is: @property(nonatomic) NSInteger selectedSegmentIndex)

When you reload your app, you'd then set the corresponding segment to active (once again via selectedSegmentIndex).

However, unless you're setting a default (via Interface Builder, or programatically), you should check the returned selectedSegmentIndex integer against the UISegmentedControlNoSegment constant to make sure you're not attempting to store what is effectively "no selection".