How can I bring a variable from a View controller to the back one? (i.e. from B view controller to A view controller?)
I have a switch value that i set on View controller B and I need to access this data also from the back view controller the A.
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-(void) switchChanged:(id)sender{ UISwitch *switchController = sender; if (tappulsante == 3){ if (switchController.on==YES && switchController.tag == 0) { self.provina = 1; NSLog(@"prodottoscelto: %i", provina); } This is the code and I have to bring the variable "provina" to the previous view controller. – Amerigo Ievoli Mar 07 '16 at 18:31
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4Possible duplicate of [Passing Data between View Controllers](http://stackoverflow.com/questions/5210535/passing-data-between-view-controllers) – JAL Mar 07 '16 at 18:31
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Possible duplicate of [How to pass prepareForSegue: an object](http://stackoverflow.com/questions/7864371/how-to-pass-prepareforsegue-an-object) – Stefan Mar 07 '16 at 21:06
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You can use the prepareForSegue method to pass parameters from one view to another.
Stack overflow already has an answer for this: How to pass prepareForSegue: an object
