Explain the difference between viewdidload and viewdidappear?

829

---

Explain xctest test case code.

802

---

What is a retain cycle?

761

---

What is memory management handled on ios?

805

---

Explain the difference between bounds and frame?

833

---

How you will store user info (username, password or token) securely in ios?

800

---

What is wildcard app ids?

901

---

From which ios version, arc is supported?

828

---

What are advantages of arc over mrc?

837

---

Explain application sandboxing.

774

---

Have you uploaded app on appstore? What is the process?

713

---

What is difference between unit tests and ui test in xcode?

855

---

Why do we override drawrect: method? How to explicitly call it?

767

---

Explain difference between mrc and arc?

829

---

What are layers?

825

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