Archives: android

Google Analytics for Firebase

a.k.a. How not to expect too much and fail miserably with Google Analytics for Firebase Have you ever wondered how many people use your brand new “Shopping App”? Has anyone actually bought anything? Which country do they live in? Which one is the language most used in your app? Has anyone managed to beat the ULTIMATE SUPER […]

Android Navigation Components Tutorial

Introduction The Google I/O 2018 had many interesting topics, many of them got a lot of attention, but the most exciting one for me was the Android Navigation Component. I think it was mostly because this topic is inevitable each time you start a project or refactor some good old apps. There were many approaches, […]

Android Jetpack Paging and Firebase

WHAT IT IS RecyclerViews and their Adapters are well known ways of displaying lists of data, but they are not optimal, because they load entire lists into themselves, and upon change, they simply reload the full list (using notifyDataSetChanged). Let’s imagine the following scenario: I have a list, containing all the currently living animal species, […]

Push Notifications – a bigger picture

Many applications we create require the ability to send push notifications. Sometimes we are the ones who made the client and the backend side as well. The available tutorials are helpful but not always entirely clear; we met quite a few challenges. Let’s look at a specific example. –          We’d like to send a push notification from […]

Using Websocket on Android

This post is the sequel to this post about WebSockets. I know what you are thinking. But why? Using WebSockets is a really useful way of building realtime applications, because they provide a fast, full-duplex communication channel between the server and the client. There are many libraries out there, usually providing straightforward, easy-to-use APIs for developers […]

Tips and Tricks for Choosing an IT Thesis Topic

#changintheworld #oneappatatime   So, thousands of Hungarian college students turned their theses in last week. It was probably the peak in the middle of a sleep deprived period, as examinations are also still taking place. I decided to save all my key insights from this extraordinarily amazing period of time. (riiiight.) Hopefully it will help […]

XML Drawables for Android Developers

It’s good to know what you can do in xml to draw something on the UI. I recently noticed that I and some colleagues tend to overcomplicate simple tasks, because we don’t really know the built-in possibilities. Sometimes the design requires a not too complex, but not so simple (e.g. a shape) drawing on the […]

ZeroKit and Firebase Demo App First Look

If there is sensitive data to be stored when developing a mobile app, security is of utmost importance. Developers can make hackers’ work harder, but it’s almost impossible to totally prevent a data breach if they are at it. Key and encryption handling can be a real pain-in-the-ass. Storing encrypted data is one thing, but […]