Delegate Protocol Swift Example - Delegate Swift Tutorial

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In this iOS tutorial you will learn how to use protocol delegate in Swift with a simple and easy to understand example designed for beginners. It will clear the concept that why we use delegate protocol and how to use. You will see how two controllers communicate with each other through protocol delegate pattern. At the end I will show that how to achieve the same thing with direct reference of controller. You will see that you can communicate to previous controller through direct reference of previous controller.