---
title: "Explain class hierarchy for a UIButton until NSObject?"  
description: "Explain class hierarchy for a UIButton until NSObject?"  
author: "Royce Roy"  
published: 2017-01-07  
updated: 2020-09-24  
canonical: https://www.mindstick.com/interview/23145/explain-class-hierarchy-for-a-uibutton-until-nsobject  
category: "ios"  
tags: ["iphone", "ios"]  
reading_time: 1 minute  

---

# Explain class hierarchy for a UIButton until NSObject?

UIButton -> UIControl -> UIView -> UIResponder ->NSObject. UIButton inherits UIControl ,UIControl inherits UIView ,UIView inherits UIResponder and UIResponder inherits NSObject.

## Answers

### Answer by Royce Roy

UIButton -> UIControl -> UIView -> UIResponder ->NSObject. UIButton inherits UIControl ,UIControl inherits UIView ,UIView inherits UIResponder and UIResponder inherits NSObject.


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Original Source: https://www.mindstick.com/interview/23145/explain-class-hierarchy-for-a-uibutton-until-nsobject

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