Written by Dawid Sibińskion I’ve recently been presented a concept of initializing the database (creating or re-creating it) with Unit Test method. Initially I thought it’s a non-sense, but after a while of taking a deeper look… The method of initializing the database I mentioned was used with Entity Framework Core in ASP.NET Core project, where Code First database creation approach was used. As you know, this approach implies that we create models (classes) representing our database entities i...

Written by Dawid Sibińskion In this short post, I’m going to show you a very handy feature of Android Debug Bridge (adb) – possibility to debug Xamarin.Android apps in Visual Studio via WiFi connection. Using ADB to debug Android apps By default, adb is configured to “map” Android devices connected via USB ports to the computer as debug devices, which are then available e.g. in Visual Studio as the device on which our app can be deployed and debugged. In may cases we debug apps on Android emulat...

Written by Dawid Sibińskion In this post, we’re going to see how to provide a nice Android UI control for selecting the date using DatePickerDialog. The dialog looks as follows: DatePickerDialog It may be opened e.g. when clicking on a button in the app, as I used it in MoneyBack. Creating DatePickerFragment First of all, we will implement the dialog to be displayed within DialogFragment. Doing that our dialog will be able to be displayed as independent piece of UI on the top of any Activit...

Written by Dawid Sibińskion In this second short post from SQLite-Net Extensions series, we’re going to see how to create one-to-one relationships using this tiny ORM. One-To-One This is the simplest type of database relationship. An example could be vehicle and registration certificate – each vehicle has one and only one registration certificate, and one registration certificate is associated with one and only one vehicle (excluding some extraordinary law rules in other countries that I don’t k...

Written by Dawid Sibińskion In today’s post I’d like to present what’s the current status of works on MoneyBack application, 3 weeks before the end of DSP competition. In general, the project hasn’t been going as well as I expected and is currently not as advanced as I’d expect it to be at this stage. There are many reasons behind that, including lack of time recently and many issues met during development, however, as I already wrote in my DSP introducing post, the most important is to survive...

Today we'll see what are the main Layout Types in Android app. It's important to know how to manage Layouts in order to create responsive UI for all kinds of devices.

Written by Dawid Sibińskion Today we’ll see how to add unit tests to Xamarin Android application, testing both platform-independtent logic and Android-specific features. Issue with unit tests in Visual Studio 2017 When I started to create my data access methods in MoneyBack, I really wanted to start writing even some basic unit tests of that logic. My first trial was to add a new project to my solution which contains unit tests. So I checked what kind of projects templates I have available and ...

Written by Dawid Sibińskion It’s been a really tough week, so today I have a non-technical post for you. I’m going to move on with the project this weekend, so I can put some technical stuff here tomorrow. If you don’t really care about productivity, organization of your days, planning of tasks to be done during next X days, this post is for you. I totally didn’t care as well, but I felt a bit disorganized, I knew I could do more or at least be conscious of what I’m able to do and what I’m not....

Written by Dawid Sibińskion Today we’re going to take a look at Android’s most basic and in the same time most important concept, which is an Activity. To create even the simplest “HelloWorld” app one should to know what are the Activities and how to work with them.What is an Activity ? The simplest, an Activity is a single screen in Android application. The concept of Activities is unusual in programming and it’s specific to Android platform. Every Activity in Xamarin consists of two components:UI (...

Dawid Sibiński 0 comments dajsiepoznac2017 Hello again 🙂 It’s been a short while, WROC# conference was held in the meantime (it was great, by the way), but it’s time to write again. Write about DSP. More precisely: about MoneyBack, my project for the competition. Today I’d like to share with you my idea for the application – what I require from it, what functionalities I imagine it to have and what technologies I want to use. This is going to be rather short post, I don’t want to sp...