React Native is a powerful framework for building mobile, desktop and even web applications, and with its CLI you can run a development version of a mobile app in an emulator or connected physical device almost with zero conf. Unfortunately, when you want to build and deploy for production, deal with code signing, certificates and keys, and share the development process across your team, it doesn’t offer a solution out of the box, and you still need to use platform-specific IDEs like Xcode and Android Studio.

But there’s an open source tool that fills this gap and provides a complete automation for the whole process, starting from the development build to the signed production bundle: Fastlane.

In this talk I will show you our Fastlane setup that lets us operate on cross-platform React Native projects as a team, integrate the CI/CD with GitHub Actions, and do almost everything from the CLI.

A Flutter package is a unit of code that is factored out to be reusable and shareable. A Flutter plugin is a special type of package that aims to make native libraries available to your dart code. Most likely your latest Flutter app depends on a number of third-party packages, many of them plugins. Understanding how these are built will help you evaluate available components, extend them to suit your needs, and even write your own plugin from scratch. In this talk, I will discuss the federated architecture of modern Flutter packages, including the special provisions needed for plugins to support a growing number of host platforms. I will then show a concrete example of a plugin package that makes native authentication libraries on iOS and Android available to a flutter widget.

According to Google there are over 3 billion active Android devices in the world right now. Most of them are obviously smartphones. That is a great achievement, but at the same time it creates a challenge: how do you grow from that? After all there are “just” 7 billion people in the world. One of the answers for this dilemma is this: “Give them all a second device”. This could be a smart watch, or TV, or even a car. And this brings us to Android TV, Wear OS and Android Auto/Automotive. Google puts a lot of resources into these platforms, and they show considerable growth last few years.In this session we will look on all of these versions of Android from the developer’s point of view. We will check what tools and API’s are available, how much are they different from the traditional mobile Android and what crucial differences you need to bear in mind developing for these platforms.

More and more web and mobile developers are using local storage to ensure good response times and that applications continue to work in the absence of a network connection. But how do you sync local storage with the backend? How do you resolve conflicts? In this talk, I present to you an open source framework (Amplify DataStore) that allows you to develop modern web and mobile applications that answer these questions with a minimum of code. I will demo the mechanisms with two Swift-based application : one on iOS and one on macOS.

Accessibility is an essential component of modern app development that is all too often overlooked. In this talk, we will delve into the critical role that accessibility will play in shaping the future of Android. We will discuss the latest advancements in Android accessibility and provide best practices for incorporating accessibility into your Android apps. By the end of this talk, attendees will have a comprehensive understanding of how accessibility is driving the evolution of Android and how to design inclusive apps that cater to users of all abilities. Additionally, we will explore the broader implications of accessibility and why it is important to not only include accessibility in our app development processes but also prioritize it in our design and implementation decisions. By prioritizing accessibility, we can create more inclusive, user-friendly apps that are accessible to all.