By Dan Pilone
Let's say you have got a killer app proposal for iPhone and iPad. the place do you start? Head First iPhone and iPad Development may help you get your first program up and working very quickly. you will not just easy methods to layout for Apple's units, you are going to additionally grasp the iPhone SDK tools—including Xcode—and Objective-C programming rules to make your app stand out.
Whether you are a professional Mac developer who desires to leap into the App shop, or somebody with robust object-oriented programming abilities yet no Mac event, this booklet is an entire studying event for growing attention-grabbing, top-selling iPhone and iPad applications.
- Install the iPhone OS SDK and start utilizing XCode
- Put Objective-C middle ideas to paintings, together with message passing, protocols, homes, and reminiscence management
- Take benefit of iPhone OS styles reminiscent of datasources and delegates
- Preview your functions within the Simulator
- Build extra advanced interactions that make the most of a number of perspectives, information entry/editing, and rotation
- Work with the iPhone's digital camera, GPS, and accelerometer
- Optimize, attempt, and distribute your application
We imagine it slow is simply too helpful to waste suffering from new innovations. utilizing the newest examine in cognitive technological know-how and studying concept to craft a multi-sensory studying event, Head First iPhone and iPad Development has a visually wealthy layout designed for a way your mind works, no longer a text-heavy procedure that places you to sleep.
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Extra resources for Head First iPhone and iPad Development: A Learner's Guide to Creating Objective-C Applications for the iPhone and iPad
There really are live e people reviewing thes things. We’ve talked to them... too often. Xcode Your app here There is a lot going on to develop an iOS app, but it all fits together. Let’s start with writing the app... you are here 4 3 iOS means Objective-C iOS apps are written in Objective-C You’ve developed in other languages before, so most of the concepts we’ll be dealing with here won’t be new. Objective-C is a C-based, object-oriented language. The good news is that the concepts aren’t new.
You are here 4 21 Adding icons One iPhone, t wo iPhones, red iPhone, blue iPhone... In Xcode, click on the main project name and bring up the summary page. This page is a high-level overview of your app including deployment info, some images, and version numbers. It also allows you access to the Asset Catalog for the app. rd , but we hea OK, not yet who has a friend from a guy this woman who who knows Apple is working on says that he-dark ones... glow-in-t Selec project the t here . Use this arrowto here to get in alog the Asset Cathe file and see t icons.
But there are differences between running in the simulator and running on a real device. Ultimately you’ll need to test things on a real device, and depending on what features you use, you might need to do it sooner rather than later. We’ll talk about device-specific capabilities in later chapters. Regardless of what features you trust, you really really have to test performance on real devices—never test simulator performance when testing your application. going mobile with iOS What does this do?