Question

There’s a UIViewController method -(void)viewDidUnload. I tried putting NSLog("unloaded"); in there to see when the view is unloaded, but nothing was printed to the console.

Where do I put my code, so that before a view unloads I can perform an action?

Answer 1

Are you using storyboard or not?

Have you tried any of this methods

 -(void) viewWillUnload{}

or

-(void)viewWillDisappear:(BOOL)animated{}

If you are using storyboards the one that will that usually performs is viewWillDisappear.