SWIFT SHARE DATA BETWEEN VIEW CONTROLLERS HOW TO
Next, we need to add the method to ViewControllerA that is called when any segue is performed. How to pass data between two view controllers. In this example we’ll call it “showDetailSegue” To use Java or Objective-C, use the -i and/or -a flags: In a. In ViewControllerA you need to tell it about ViewControllerB, so use anĬreate the segue from ViewControllerA to ViewControllerB on the storyboard and give it an identifier. By default, our template supports writing Android code using Kotlin, or iOS code using Swift. So to pass a BOOL from ViewControllerA to ViewControllerB we would do the following: This is similar to the above but instead of passing the data before you push the view controller, you use a method called -(void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender If you are using Storyboards you are most likely using segues and will need this procedure to pass data forward. This will set isSomethingEnabled in ViewControllerB to BOOL value YES. On VC b you need to either call: FOR MODAL: dismissViewController. Passing data between view controllers,When designing an app that makes use of multiple view controllers it may become necessary to pass data back and forth. ViewControllerB.isSomethingEnabled = YES People are not addressing the fact that if you are navigating correctly then VC A will retain its data when you either dismiss back to it, or pop back to it.
ViewControllerB *viewControllerB = bundle:nil] Then where you want to load the view, for example, didSelectRowAtIndex or some IBAction, you need to set the property in ViewControllerB before you push it onto the navigation stack. In ViewControllerA you need to tell it about ViewControllerB so use below
In ViewControllerB.h create a property for the BOOL (nonatomic, assign) BOOL isSomethingEnabled To pass a BOOL value from ViewControllerA to ViewControllerB we would do the following.
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