What is a protocol in objective-c programming language?

874

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Explain app bundle?

930

---

Explain me does ios support multitasking?

890

---

Explain what is a class?

856

---

Explain ios switching applications?

888

---

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

877

---

What do you know about home screen of ios?

863

---

Does ios supports multi-tasking functionality?

955

---

What is the mean of not running state in ios?

863

---

What are selectors in objective-c?

869

---

Explain what is storyboard?

821

---

Explain the significance of autorelease?

887

---

Explain mutable and immutable types in objective c programming language?

884

---

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

843

---

Explain me what is arc? How it works?

859

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