This is a blog post by iOS Tutorial Team member Tope Abayomi, an iOS developer and Founder of App Design Vault, your source for iPhone App Design. Welcome to the second part of the tutorial series on how to generate a PDF using Quartz 2D! In Part One, we set up an app framework for the PDF, and we drew some rudimentary text and lines with Quartz 2D inside our PDF. Since our PDF will be an invoice

This is a blog post by iOS Tutorial Team member Tope Abayomi, an iOS developer and Founder of App Design Vault, your source for iPhone App Design. Sometimes in your apps you might want to generate a PDF with data from the app for your users. For example, imagine you had an app that allowed users to sign a contract – you would want the users to be able to get a PDF with the final result. But how do

Update 7/17/14: We now have a new version of this tutorial fully updated to Swift – check it out! If you need to detect gestures in your app, such as taps, pinches, pans, or rotations, it’s extremely easy with the built-in UIGestureRecognizer classes. In this tutorial, we’ll show you how you can easily add gesture recognizers into your app, both within the Storyboard editor in iOS 5, and programat

Update 10/24/12: If you’d like a new version of this tutorial fully updated for iOS 6 and Xcode 4.5, check out iOS 5 by Tutorials Second Edition! Note from Ray: This is the fifteenth and final iOS 5 tutorial in the iOS 5 Feast! This tutorial is a free preview chapter from our new book iOS 5 By Tutorials. This Wednesday we’ll have our final post in the iOS 5 Feast series – the epic iOS 5 Feast Give

Note from Ray: This is the eighth iOS 6 tutorial in the iOS 6 Feast! In this tutorial, you’re updating one of our older tutorials to iOS 6 so it’s fully up-to-date with the latest features like the new Core Image filters in iOS 6. Parts of this tutorial come from Jake Gundersen‘s three Core Image chapters in iOS 5 by Tutorials and iOS 6 by Tutorials. Enjoy! Update note: Want to read this tutorial

Note from Ray: This is the twelfth iOS 5 tutorial in the iOS 5 Feast! This tutorial is a free preview chapter from our new book iOS 5 By Tutorials. Matthijs Hollemans wrote this chapter – the same guy who wrote the iOS Apprentice Series. Enjoy! This is a post by iOS Tutorial Team member Matthijs Hollemans, an experienced iOS developer and designer. This is the second part of a two part tutorial se

Update 10/24/12: If you’d like a new version of this tutorial fully updated for iOS 6 and Xcode 4.5, check out iOS 5 by Tutorials Second Edition! Note from Ray: This is the twelfth iOS 5 tutorial in the iOS 5 Feast! This tutorial is a free preview chapter from our new book iOS 5 By Tutorials. Matthijs Hollemans wrote this chapter – the same guy who wrote the iOS Apprentice Series. Enjoy! This is a

Note from Ray: This is the tenth iOS 5 tutorial in the iOS 5 Feast! This tutorial is a free preview chapter from our new book iOS 5 By Tutorials. Enjoy! This is a post by iOS Tutorial Team member Cesare Rocchi, a UX designer and developer specializing in web and mobile applications. This is the second part of a two-part tutorial series on how to get started using iCloud in iOS 5. In the first part

Update 10/24/12: If you’d like a new version of this tutorial fully updated for iOS 6 and Xcode 4.5, check out iOS 5 by Tutorials Second Edition! Note from Ray: This is the ninth iOS 5 tutorial in the iOS 5 Feast! This tutorial is a free preview chapter from our new book iOS 5 By Tutorials. Enjoy! This is a post by iOS Tutorial Team member Cesare Rocchi, a UX designer and developer specializing in

Note from Ray: This is the fifth iOS 5 tutorial in the iOS 5 Feast! This tutorial is a free preview chapter from our new book iOS 5 By Tutorials. Enjoy! Welcome back to our Beginning OpenGL ES 2.0 with GLKit series! In the first part of the series, we showed you how to create a simple GLKView and GLKViewController based project from scratch. In the process, you learned all about what these classes

Update 10/24/12: If you’d like a new version of this tutorial fully updated for iOS 6 and Xcode 4.5, check out iOS 5 by Tutorials Second Edition! Note from Ray: This is the fourth iOS 5 tutorial in the iOS 5 Feast! This tutorial is a free preview chapter from our new book iOS 5 By Tutorials. Enjoy! iOS 5 comes with a new set of APIs that makes developing with OpenGL much easier than it used to be.

Note from Ray: This is the third iOS 5 tutorial in the iOS 5 Feast! This tutorial is a free preview chapter from our new book iOS 5 By Tutorials. Matthijs Hollemans wrote this chapter – the same guy who wrote the iOS Apprentice Series. Enjoy! This is a post by iOS Tutorial Team member Matthijs Hollemans, an experienced iOS developer and designer. If you want to learn more about the new storyboardi

Update 10/24/12: If you’d like a new version of this tutorial fully updated for iOS 6 and Xcode 4.5, check out iOS 5 by Tutorials Second Edition! Note from Ray: This is the second iOS 5 tutorial in the iOS 5 Feast! This tutorial is a free preview chapter from our new book iOS 5 By Tutorials. Matthijs Hollemans wrote this chapter – the same guy who wrote the iOS Apprentice Series. Enjoy! This is a

Note from Ray: This is the fifth iOS 6 tutorial in the iOS 6 Feast! In this tutorial, we’re updating one of our older tutorials to iOS 6 so it’s fully up-to-date with the latest features like the new UIKit controls that can be customized in iOS 6. Parts of this tutorial come from Steve Baranski and Adam Burkepile’s chapters in iOS 5 and iOS 6 by Tutorials, although the book covers a lot more than

This is the second part of a two part tutorial series where we’ll build a cool catapult type game from scratch using Cocos2D and Box2D! In the first part of the series, we added the catapult into the scene, with the ability to shoot dangerous acorns. In this second and final part of the series, we’re going to flesh this out into a complete game, and add targets to shoot at and game logic. If you d

In this tutorial series we’ll build a cool catapult type game from scratch using Cocos2D and Box2D! We’ll use the art created by Ray’s lovely and talented wife Vicki to create a game about catapults, acorns, dogs, cats, and angry squirrels. In this tutorial series, you’ll learn: How to use rotation joints How to use weld joints How to have the camera follow a projectile How to use a collision’s im