Explain ios switching applications?

892

---

If any app can run in the background, what about battery life?

882

---

What do you know about home screen of ios?

868

---

Does ios supports multi-tasking functionality?

963

---

What is the mean of not running state in ios?

865

---

What are selectors in objective-c?

879

---

Explain what is storyboard?

833

---

Explain the significance of autorelease?

890

---

Explain mutable and immutable types in objective c programming language?

890

---

Explain "private", "protected" and "public"?

850

---

Explain me what is arc? How it works?

863

---

What is retain counts?

818

---

Who calls the main function of app during the app launch cycle in ios?

895

---

What are the features is ios 6?

906

---

Explain me what is fast enumeration?

927

---