Explain the difference between viewdidload and viewdidappear?

835

---

Explain xctest test case code.

813

---

What is a retain cycle?

761

---

What is memory management handled on ios?

811

---

Explain the difference between bounds and frame?

836

---

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

802

---

What is wildcard app ids?

903

---

From which ios version, arc is supported?

833

---

What are advantages of arc over mrc?

848

---

Explain application sandboxing.

784

---

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

719

---

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

859

---

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

768

---

Explain difference between mrc and arc?

838

---

What are layers?

828

---