Passing Data Example

Delegates or Properties, take your pick. PROPERTIES Class A (ViewController) wants to communicate with Class B (ViewController) Before calling Class B, do the following: In Class B, create a @property NSString* receivedValue; In Class A, #import Class B then in the method that calls B (either prepareForSegue or didSelectRowAtIndexPath or some method where you present Class B view controller, do the following: Class B *calledVC = alloc/init calledVC.receivedValue = ‘whatever value you want to pass’; then call Class B VC Done!   DELEGATES Let’s say Class B wants to notify Class A that something has finished.  In Class B add this above your @interface: @protocol YourDelegateProtocol <NSObject> – (void)itemWillBePassed; @end… Read More

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