Brief written observations which are important to remember and use, usually with an explanation and examples.
Key task that I realized in last time was handling beacon localization. Result my work is visible on the screen below. A user can see last available points on a map. Points are stored in a database. I set a default limit to 300 points for each beacon and if this range is exceeded older [...]
In this article, I try show brief review new features which were introduced in Android O. Google focused their attention mainly on power and performance optimization. News regarding this version could be divided into two categories: Features and API: Notifications - Android O introduced a new feature that is called "Notifications channels" that mean your [...]
Hi, in the near future I'm going to work on communication with a beacon. After adding beacon it must be configurable. Screen with details is shown below. Here you can edit name your beacon, edit color, check battery status and check if the beacon is moved. If last two options occur: battery is low or [...]
Many mobile apps need exchange data with a server (mostly by HTTP protocol). It could be realized by REST API. What is REST I shortly introduced here. Retrofit is a REST client for Android (or just Java) developed by Square. Of course, you can create the connection with the server without external libraries, but it [...]
Hi, in last days I come back to alarm case. My task to this week was a handle alarm. I prepared logic to create alarms and now is a good time to allow user enable and disable configured alarms. The new view is a screen which is visible when our alarm is activated and we [...]
Reactive programming has become very popular in last time. I think for beginner developer it could be a little bit overwhelming and difficult to understand. Why should you direct your attention to this approach? Firstly, what is reactive programming and RxJava or RxAndroid? The most popular definition is that reactive programming is an extension of [...]