![]() The first instrument you’ll look at is Time Profiler. You’ll see how Instruments can make debugging problems much easier! Time for Profiling The rest of this tutorial shows you how to find and fix issues that still exist in the app. But you’re about to see the value that using Instruments can add to your app. You might think that once the UI looks great, the app is ready for store submission. Play with the app and check out its basic functions. The app will let you know whenever the key is invalid.īuild and run, perform a search, click the result and you’ll see something like this: Note: The API key changes every day or so, so you’ll occasionally have to regenerate a new key. To update the project, open FlickrAPI.swift and replace the existing API key value with your new value. You can find this by looking for the number between &api_key= and the next & you see. This will generate a URL link at the very bottom of the page that looks like:.Find and click Call Method… at the bottom of the page.Once signed in successfully, go to Flickr API Explorer.Go to and either create a new Flickr account, or sign in with your existing account.For demo projects, you can generate a sample key on Flickr’s website: This sample app uses the Flickr API to search for images. You’ll do this by going through an existing app and improving it using Instruments - much like you would with your own apps! Getting Startedĭownload the project materials using the Download Materials button at the top or bottom of this tutorial. How to check your code for performance issues, memory issues, reference cycles and other problems.Ways of configuring and customizing your instruments.What Instruments is and what tools it contains.In addition to improving their apps by adding features, there’s one thing all good app developers should do: instrument their code! This Xcode Instruments tutorial will show you how to use the most important features of the Instruments tool that ships with Xcode. Fabrizio Brancati and Nicholas Sakaimbo wrote earlier updates, and Matt Galloway wrote the original. Whether you’re a programmer, designer, or even an artist, there’s something here for you.Update note: Lea Marolt Sonnenschein updated this tutorial for iOS 14, Xcode 12 and Swift 5.2. WHO IS INTERACTIVE TUTORIALS FOR XCODE FOR?Įver wonder how that Great Apps was created, or how they created that cool mobile games? Or maybe you just want to know how to do some really awesome stuff in Xcode. Plus, there are so many other things throughout the app that you’ll be bursting with new ideas! Have fun discovering! The newest and coolest features of Xcode Details how to Work with SQLIte and NSKeyedArchiver UITapGestureRecognizer Single Tap, Double Tap, Long Press A whole chapter on how to work with music, movie, animation Shortcuts, tricks, and tips that let you work smarter and faster Details how to save your data in the device Steps for creating POST/GET HTTP Request Learn how to get the app version, device font list Find out how to make a fantastic animation Explore the use of UIView, UIViewController ![]() ![]() Discover all the things you can do with the UIControls Get familiar with the Xcode + Swift + Objective-C XCODE AND SWIFT TUTORIALS includes 1146 self-paced lessons that allow you to progress at your own speed(tip:The first lesson teach you how to use the app): In addition to the Interactive-Mode, app supports the Inspector-Mode, it converts the app to be 20 hours video tutorials, a great added value! There is no faster, more straight-to-the-point, or more fun way to learn Xcode than with this app. You'll learn how to express yourself and create great Apps quickly and directly! It’s the first and only app to bring the whole process together in such a clear, concise, and interactive way. It's like having your own personal tutor teaching you the newest version of Xcode. With candid, jargon-free advice and step-by-step guidance, you’ll get everything from the core aspects of working to advanced techniques for refined workflows and professional results. The app teaches you about each of the features of Xcode 14 and show you how to use them in detail. ![]() WHAT IS XCODE AND SWIFT TUTORIALS brings you simple, funny, interactive learning app for Xcode 14 and Swift 5. The fastest, easiest and most fun way to learn iOS programming/developmentīased on new Xcode and Swift and Objective-C ![]()
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