How can we achieve singleton pattern in iOS?

845

---

What is Delegation in iOS?

804

---

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

777

---

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

846

---

How to represent layer objects in iOS operating system ?

802

---

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

858

---

Is there any garbage collector concept available in iOS?

811

---

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

795

---

What are layer objects in iOS operating system?

830

---

What is notification in iOS?

869

---

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

949

---

What is sandbox in iOS operating system?

961

---

What is categories in iOS?

859

---

Explain the correct way to manage Outlets memory in iOS.

801

---

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

824

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