While there is a lot of appreciation for backend and distributed systems challenges, there tends to be less empathy for why mobile development is hard when done at scale. This book collects challenges engineers face when building iOS and Android apps at scale, and common ways to tackle these. By scale, we mean having numbers of users in the millions and being built by large engineering teams. For mobile engineers, this book is a blueprint for modern app engineering approaches. For non-mobile engineers and managers, it is a resource with which to build empathy and appreciation for the complexity of world-class mobile engineering. The book covers iOS and Android mobile app challenges on these dimensions: Challenges due to the unique nature of mobile applications compared to the web, and to the backend. App complexity challenges. How do you deal with increasingly complicated navigation patterns? What about non-deterministic event combinations? How do you localize across several languages, and how do you scale your automated and manual tests? Challenges due to large engineering teams. The larger the mobile team, the more challenging it becomes to ensure a consistent architecture. If your company builds multiple apps, how do you balance not rewriting everything from scratch while moving at a fast pace, over waiting on "centralized" teams? Cross-platform approaches. The tooling to build mobile apps keeps changing. New languages, frameworks, and approaches that all promise to address the pain points of mobile engineering keep appearing. But which approach should you choose? Flutter, React Native, Cordova? Native apps? Reuse business logic written in Kotlin, C#, C++ or other languages? What engineering approaches do "world-class" mobile engineering teams choose in non-functional aspects like code quality, compliance, privacy, compliance, or with experimentation, performance, or app size?

Now, one book can help you master mobile app development with both market-leading platforms: Apple's iOS and Google's Android. Perfect for both students and professionals, Learning Mobile App Development is the only tutorial with complete parallel coverage of both iOS and Android. With this guide, you can master either platform, or both--and gain a deeper understanding of the issues associated with developing mobile apps. You'll develop an actual working app on both iOS and Android, mastering the entire mobile app development lifecycle, from planning through licensing and distribution. Each tutorial in this book has been carefully designed to support readers with widely varying backgrounds and has been extensively tested in live developer training courses. If you're new to iOS, you'll also find an easy, practical introduction to Objective-C, Apple's native language.

Coding is cool, and these fun projects help you get started today! Building a Mobile App offers basic lessons in Android development, designed specifically for kids! Three fun projects walk you through basic coding skills using MIT's App Inventor—a free, online programming tool that uses a simple block style language that makes coding easy to learn. No long chapters to read, and no homework—just dive right in! You'll begin with a basic project that shows you how to make an app that works; next, you'll put those skills to work on a photo editing app that takes your skills to the next level. Finally, you'll level up one more time to become a Game Maker—that's right, you'll actually build a mobile game that you can send to your friends! Each project includes step-by-step directions and plenty of graphics to help you stay on track, and easy-to-read instructions help you complete each project frustration-free. App building can get pretty complicated, but it doesn't have to start out that way. Start small to pick up the basics quickly, and you'll be coding in no time! This book helps you get started quickly and easily, with a focus on fun. Build your own Android mobile apps using a free online platform! Code everything yourself, including buttons, screens, and interactions! Build an app that lets you draw on pictures you take! Create a simple, interactive game you can share with your friends! Adults all over the world turn to For Dummies books for clear instruction with a sense of humor; the Dummies Junior books bring that same "learning is fun" attitude to kids, with projects designed specifically for a kid's interests, needs, and skill level. Building a Mobile App gets kids coding quickly, with fun projects they'll be happy to show off!

Learn how to build apps for mobile devices on Cloud platforms The marketplace for apps is ever expanding, increasing the potential to make money. With this guide, you'll learn how to build cross-platform applications for mobile devices that are supported by the power of Cloud-based services such as Amazon Web Services. An introduction to Cloud-based applications explains how to use HTML5 to create cross-platform mobile apps and then use Cloud services to enhance those apps. You'll learn how to build your first app with HTML5 and set it up in the Cloud, while also discovering how to use jQuery to your advantage. Highlights the skills and knowledge you need to create successful apps for mobile devices with HTML5 Takes you through the steps for building web applications for the iPhone and Android Details how to enhance your app through faster launching, touch vs. click, storage capabilities, and a cache Looks at how best to use JSON, FourSquare, jQuery, AJAX, and more Shares tips for creating hybrid apps that run natively If you're interested in having your application be one of the 200,000+ apps featured in the iPhone store or the 50,000+ in the Android store, then you need this book.

Do you want to develop mobile apps with Java—and have them work on a variety of devices powered by iOS and Android? You’ve come to the right place. This project-driven book shows you how to build portable apps with two amazing open source frameworks, Google Web Tools (GWT) and PhoneGap. With these tools, you’ll use learn how to write Java code that compiles into cross-platform Javascript and HTML, and discover how to take advantage of features in several popular devices, such as the camera, accelerometer, and GPS. Get started with GWT by building an example Twitter search app Build a example web app and adapt it for mobile with CSS Add touch centric controls with the GWT Mobile UI library Develop a working wine journal app that tracks a user’s GPS location Use techniques to make a mobile version of your web or desktop app Work with HTML5 Canvas to build a mobile video game Package your apps for iOS, webOS, and Android with PhoneGap

Methods for new mobile experiences, from concept creation to prototyping to commercialization.

By failing to consider those with needs different to ourselves, we are telling these people they are not welcome in our app, and therefore that technology as a whole, is not for them. This is not hyperbole—23% of people in the US with a registered disability aren't online at all, that's three times more likely than the general population. When asked why they're not online, disabled respondents say their disability prevents them or that using the internet is too hard. To help your apps combat the issue of digital exclusion, this book covers considerations and tools mobile developers, or anyone creating mobile experiences, can use to make mobile work better for those with disabilities—mental or physical—and how to create a better experience for everyone. Software is not made up of cold, unthinking algorithms. Software is a craft in the truest sense of the word, and one of the greatest tools you can have as a craftsperson is empathy for the people who will be using your app. Each one of whom is an individual with different abilities, experiences, knowledge, and circumstances. What You'll Learn Create mobile experiences that work for as many people as possible Incorporate a worldview of accessibility and customer service into your design Work with accessibility tools and techniques commonly available for developers Who This Book Is For Mobile developers working solo or as part of a team. UX designers, quality engineers, product owners, and anybody working in mobile.