---
title: "What is the use of QLPreviewController in iOS?"  
description: "What is the use of QLPreviewController in iOS?"  
author: "Tarun Kumar"  
published: 2016-01-01  
updated: 2020-09-24  
canonical: https://www.mindstick.com/interview/22960/what-is-the-use-of-qlpreviewcontroller-in-ios  
category: "iphone"  
tags: ["iphone", "ios", "objective c"]  
reading_time: 2 minutes  

---

# What is the use of QLPreviewController in iOS?

**QLPreviewController** class or Quick Look Preview Controller provides us facility to previewing an item. For displaying a QLPreviewController we have 2 options:\
- by pushing it into view using a UINavigationController object. OR\
- by presenting it modally, fullScreen using the presentModalViewController:animated: method of its parent class(UIViewController).

**We can use preview controller to display previews for following items:**\
- Images,\
- PDF files,\
- Rich Text Format(RTF) documents,\
- MSOffice documents(Office'97 and newer),\
- iWork documents,\
- Comma-separated value(csv) files

In iOS **QLPreviewController** class is available in the **QuickLook.framework**, so it is mandatory to import that framework for using features of QLPreviewController class.

## Answers

### Answer by Tarun Kumar

**QLPreviewController** class or Quick Look Preview Controller provides us facility to previewing an item. For displaying a QLPreviewController we have 2 options:\
- by pushing it into view using a UINavigationController object. OR\
- by presenting it modally, fullScreen using the presentModalViewController:animated: method of its parent class(UIViewController).

**We can use preview controller to display previews for following items:**\
- Images,\
- PDF files,\
- Rich Text Format(RTF) documents,\
- MSOffice documents(Office'97 and newer),\
- iWork documents,\
- Comma-separated value(csv) files

In iOS **QLPreviewController** class is available in the **QuickLook.framework**, so it is mandatory to import that framework for using features of QLPreviewController class.


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Original Source: https://www.mindstick.com/interview/22960/what-is-the-use-of-qlpreviewcontroller-in-ios

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