Answer / Gyaneshchandra Sharma

Yes, the AppDelegate class in iOS is designed as a singleton. This means that there is only ever one instance of it throughout the entire lifecycle of your app.

How many bytes we can send to apple push notification server?

1 Answers  

---

Explain UIApplication delegate

1 Answers  

---

. Apart from incorporating views and controls, what else an app can incorporate?

1 Answers  

---

Explain me how to parse json?

1 Answers  

---

Explain Inapp purchase in iOS

1 Answers  

---

What are blocks in ios?

1 Answers  

---

What is made up of nserror object?

1 Answers  

---

Explain differences between foundation and corefoundation

1 Answers  

---

What is nsmanagedobjectcontext? What are the different concurrency types? Explain them.

0 Answers  

---

What manual memory management ? How it work?

1 Answers  

---

Explain formal protocols?

1 Answers  

---

Will iphone 7 get ios 13?

1 Answers  

---