What is weak in ios?

792

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What is reuse identifier?

740

---

What is strong weak in ios?

793

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What is the current iphone ios?

820

---

What is the difference between viewdidload and viewwillappear?

772

---

What is the concurrency how many ways you know to achieve concurrency?

734

---

What is the protocol in ios?

778

---

What is called before viewdidload?

766

---

What is difference between static library and framework?

858

---

What is a serial queue?

766

---

What size is 1x and 2x?

703

---

Why is iboutlet weak?

776

---

What is appdelegate in xcode?

774

---

What language is ios based on?

798

---

What is thread in ios?

763

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