Answered: 13. As a UI view controller is created,…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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13. As a UI view controller is created, the default function viewDidLoad() is defined. Unless the function is overridden, it can be inherited from its superclass ___________________. Fill in the blank.

14. Assume that user credentials may be available. One of the implementation methods for iPhone access control is to enable or disable UI objects depending on the user's credential.

__________ var button: UIButton!

@IBAction func _________ {_ sender: Any) {

// do a sequence of actions

}

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