Explain the difference between viewdidload and viewdidappear?

843

---

Explain xctest test case code.

814

---

What is a retain cycle?

762

---

What is memory management handled on ios?

814

---

Explain the difference between bounds and frame?

842

---

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

803

---

What is wildcard app ids?

906

---

From which ios version, arc is supported?

837

---

What are advantages of arc over mrc?

848

---

Explain application sandboxing.

787

---

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

719

---

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

864

---

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

770

---

Explain difference between mrc and arc?

847

---

What are layers?

832

---