legolasW/DrawingWithPencilKit

willResignActiveNotification called multiple times. After you quit move move back and fourth between collectionView and note. Then move the app to background, you'll observe willResignActiveNotification actived many times.

Drawing With PencilKit

Add expressive, low-latency drawing to your application with PencilKit.

Overview

• Note: This sample code project is associated with WWDC 2019 session 221: Introducing PencilKit.

Configure the Sample Code Project

Before you run the sample code project in Xcode:

• You need an iOS device running iOS 13 or later.