How can we achieve singleton pattern in iOS?

791

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What is Delegation in iOS?

756

---

Why do we need to use @Synthesize in iOS operating system?

718

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Is the delegate for a CAAnimation retained in iOS operating system?

798

---

How to represent layer objects in iOS operating system ?

766

---

What is the difference between copies & retain in iOS operating system?

810

---

Is there any garbage collector concept available in iOS?

753

---

How can an operating system improve battery life while running an app in iOS operating system?

749

---

What are layer objects in iOS operating system?

769

---

What is notification in iOS?

817

---

Explain how an autorelease pool works at the runtime level in iOS

896

---

What is sandbox in iOS operating system?

916

---

What is categories in iOS?

808

---

Explain the correct way to manage Outlets memory in iOS.

743

---

What is difference between synchronous and asynchronous in web request in iOS operating system?

778

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