Function references are another of those great improvements that we get with Kotlin, which are kind of exotic when we come from Java. You already know that Kotlin supports functions as a type, what means that you can save a function in a variable, use it as another function argument, or even make that a …
Function references in Kotlin: use functions as lambdas everywhere Read More »
Warning: Anko has been deprecated, here it is some more info and alternatives to this library If you’re already developing Android Apps using Kotlin, you’ve probably heard about Anko layouts and been thinking about using them, or at least considering to take a look at them. The truth is that Anko has been around for …
Anko layouts on Android. Should I forget about XMLs? Read More »
You may probably know that this days I’m publishing my first online course in English, Kotlin for Android Developers, based on all the knowledge I’ve gotten from writing my book and the live workshop I teach here in Spain. In the course, you will learn Kotlin from scratch applied to Android development, in a very …
Why Kotlin for Android online course is different from any other Read More »
As you may know, the Support Library 24 included a new really handy class called DiffUtil, which will let you get rid of the boring and error prone of detecting which cells changed and update them If you haven’t heard about it, you can take a look at this nice article from Nicola Despotoski, which …
Kotlin Recipes for Android (II): RecyclerView and DiffUtil Read More »
Today a mate asked me how he could do an OnGlobalLayoutListener properly without incurring in the need of too much boilerplate. This was a tricky question because of a couple of things, let’s see it a little more deeply. What is OnGlobalLayoutListener for? This listener is available for any view’s ViewTreeObserver and it’s quite often …
Kotlin recipes for Android (I): OnGlobalLayoutListener Read More »
I’ve been talking a lot about Kotlin in this blog, but now that Google is also talking about Kotlin, and that Kotlin 1.0 RC has been released, there’s no doubt that Kotlin is much more than just an alternative for Android. Kotlin is here to stay, and I recommend you to start learning about it. …
If you’ve used a RecyclerView, you may know that they don’t have a setOnItemClickListener as ListView had, so we have to create our own way to do it. Many people asked me how to do this, so that’s why I decided to write about it. There are many ways to achieve this, but I will …
Warning: The Plaid project has changed a lot since I wrote this, but here there are still some useful ideas that can help you in your own projects to start thinking the “Kotlin” way We saw pretty amazing improvements in the first article thanks to the use of Kotlin in an activity. But the thing …
Converting Plaid to Kotlin: Lessons learned (Part 2) Read More »
Warning: The Plaid project has changed a lot since I wrote this, but here there are still some useful ideas that can help you in your own projects to start thinking the “Kotlin” way People often ask me about the advantages of writing Android Apps using Kotlin. The thing is that I never directly converted …
Converting Plaid to Kotlin: Lessons learned (Part 1) Read More »
One of the awesome things about Android is the ability we have to integrate our apps into the ecosystem in many different ways. Apps can talk among each others, and this fact gives us an impressive flexibility to create unique experiences. Integrations with Google are a clear example. We have a bunch of different features that can …