![]() This method creates a Core Graphics context and draws the image displayed by the canvas view into that context. The most important code can be found in touchesMoved(_:withEvent:), which is triggered when the user interacts with the canvas view. Take a look at the code in CanvasView.swift. It also continuously updates the display to reflect your touch. Under the hood, Scribble is a basic app that consists of a canvas view that captures the touch from finger or Pencil. Shake the iPad to clear the screen - just like an Etch-A-Sketch! You’ll see that unlike previous iPads, palm rejection is automatic, although you’ll have to be careful to rest a large area of your hand because smaller areas are read as touches. Try it out on your iPad Pro, with both Pencil and your finger, making sure to rest your hand on the screen as you draw. pressure sensitivity and shading.ĭownload and explore Scribble. It’s a simple app that lets you draw with responsive UI, e.g. Throughout this Apple Pencil tutorial, you’ll build an app called Scribble. Have a look at the first part of our Core Graphics tutorial - that will be plenty to get you up to speed, and the app will remind you to drink water. You’ll need to know what contexts are, how to create them and how to draw strokes. A basic familiarity with Core Graphics.At least Xcode 7.1 with at least iOS 9.1.Sounds like you’ve got your excuse for an upgrade! Also, Pencil doesn’t work with older iPads, just the iPad Pro. To follow along with this tutorial, you’ll need: How to improve the experience by working with predictive and actual drawingsīy the end of this tutorial, you’ll be ready to integrate Apple Pencil support into your apps! Prerequisites. ![]() In this Apple Pencil tutorial, you’re going to learn exactly what it takes to support Pencil. I can only imagine what kinds of amazing works of art people will create now that there is Apple Pencil. As you’ll see from my scribbles, I’m no Rembrandt, but I’ve found Pencil is also great for taking notes. I’ve been waiting for something like this device since I purchased the original iPad. If you’re anything like me, once you’ve experienced the awesomeness of drawing with Pencil, you’ll want to include support for it in all of your apps. I know that many of you have got yourself a gorgeous new iPad Pro and snagged a Pencil to go along with it. ![]()
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