Mike Grabowski

2019

React Native EU

Intro

React Native CLI has been extracted out of the main repository a while ago, as a part of ongoing Lean Core effort. We have merged more than 100 PRs since then and the number is growing. We also shipped a ton of improvements with other exciting features on the roadmap. In this talk, I am going to give you an update where we are, what are the highlights from past few months and what you can expect from the future.

https://github.com/react-native-community/react-native-cli

Chain React

The State of React Native Tooling

2018

Thank you!

Look at the Core

INTRO

ReasonML and You - A Fireside Chat with Mike Grabowski

One of the benefits of React is its declarative interface and the fact that you can describe any advanced UI pattern with a set of components to have a predictable behavior. 

That is, completely different from what we have used to be doing - when writing imperative code. In fact, imperative itself is often blamed on Twitter for being highly dangerous and an anti-pattern. 

In this talk, we will explore different ways of building reusable libraries with React Native (like APIs and higher order components). We will see that imperative code is actually there at low-level and is what makes communication with native world possible.

React Amsterdam

Imperative is the new black

One of the biggest benefits when choosing React Native is its declarative nature. Instead of laying out elements on screen manually, we tell React how our interface should look like for a given state. That, combined with React Native taking care of rendering, allows us to write things that would be hard or even impossible otherwise. One of such things are animations. Historically, we used to write them in an imperative and stateful manner. By design, these are hard to debug and - most importantly compose. 

In this talk we will take a look at writing animations in React Native by using Animated module.

2017

React Day Berlin

The Power of Interpolation

React Native EU 2017, organized by Callstack.io, was the first conference in Europe focused exclusively on React Native. It took place on September 6-7 in Wroclaw, Poland.

Welcome to React Native EU 2017

The Dark Art of Bundlers

React Native opens up the world of mobile development for many of us, front-end engineers. 

It not only allows us to use technologies we know already, like React, to provide first-class native experience to our users, but also to support many platforms, like Android and iOS at once, from within the same codebase.

This talk will explore various patterns that turned to be useful over the course of few projects I did. It will also demonstrate techniques that can be used to write truly universal apps, ie. ones that share core across web, native and more.

Universal React

At Callstack.io, we have been working on the media player for one of our clients on both iOS and Android and decided to do it in React Native. React Native itself doesn't provide any APIs to control lock screen, bluetooth headphones or music playback thus they all have to be written. In this talk, we will check how all the above can be added to React Native with native modules while still being 100% reusable and easy to maintain.

2016

ReactNext

Building a Fully-Fledged Media Player in React Native

ReactEurope

Solving a tooling problem for react-native

The web is evolving out of the browser. With the rise of React Native for iOS, and the recently open sourced Android version, universal javascript is now about fully featured experiences across web, mobile devices and soon, it will be also about smart watches, TVs and beyond. 
Device fragmentation is about to explode and the need for write-once and run-everywhere is stronger than ever. The ability to maintain a single codebase of components and logic is currently a convenience but soon will be a necessity to keep up with the plethora of devices that our services will be accessed through. 

This talk explores these concepts and discusses the foundations of a developing a device-agnostic platform. By checking out various patterns and deployment techniques we are going to see how you can power all your devices by Javascript with confidence. Yes, even your washing machine!

2015

ReactiveConf

Let's talk JavaScript

Este.js is the most complete React/Flux dev stack. The perfect cure for developers already tired with mainstream frameworks  like Angular or Ember.

It ships with lots of goodies including immutable single app state, top-down data passing and intl translations out of the box!  So let's use all these features to start building native apps!

In this lightning he is walking you through the process of transitioning Este.js dev stack to the native world  outlining the most common problems and pitfalls we needed to face, including:
  - Project setup - preparing the native application ecosystem and reorganising the folder structure
  - Migration - moving the codebase to React Native, deciding what files can be just dropped in and what needs to be rewritten
  - Styles - replacing stylesheets and mixins with StyleSheet showing good-to-use patterns we can use to make it all maintainable
  - Routing - handling lack of the React Router with custom navigation on top of Navigator

http://github.com/grabbou