Explain the difference between viewdidload and viewdidappear?

901

---

Explain xctest test case code.

865

---

What is a retain cycle?

798

---

What is memory management handled on ios?

868

---

Explain the difference between bounds and frame?

884

---

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

836

---

What is wildcard app ids?

941

---

From which ios version, arc is supported?

872

---

What are advantages of arc over mrc?

896

---

Explain application sandboxing.

835

---

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

765

---

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

921

---

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

811

---

Explain difference between mrc and arc?

896

---

What are layers?

869

---