How to make a function run a if else statement in swift?

🎤 General Discussion Swift
1

The code below deactivates one constraints for a new one. But it only goes one way; how can the code be written in a if else statement so that it goes from old constraint to new constraint and new constraint to old constraint. This is how I would pseudo code it. IF A IS RUNNING END A AND RUN B; IF B IS RUNNING END B AND RUN A. This is would be in a loop.

  func myFunction(sender: AnyObject) {


    NSLayoutConstraint.deactivateConstraints(initialc)

    let widthc = colorview.widthAnchor.constraintEqualToConstant(100)
    let heightc = colorview.heightAnchor.constraintEqualToConstant(100)
    let centerxc = colorview.centerXAnchor.constraintEqualToAnchor(self.view.centerXAnchor)
    let centeryc = colorview.centerYAnchor.constraintEqualToAnchor(self.view.centerYAnchor)

    NSLayoutConstraint.activateConstraints([widthc,heightc,centerxc,centeryc])

}
2

Call that function from another function using the if:

someMainFunction() {
     if (someCondition) {
          myFunction();
     } else {
          myOtherFunction();
     }
}