While debugging some Android instrumentation tests that were ran using adb shell am instrument, I needed to print some logs into the terminal/console to inspect the flow and resolve some issues. Ever been coding away, trying to track down what’s happening under the hood, thinking Log.i/e/d or System.out would be your trusty sidekicks for logging […]
If you ever wondered how to read and parse a simple JSON file stored in the assets directory of your Android project, here is a way to do it.
In this tutorial I will create a simple Sectioned RecyclerView that will show 2 sections and a few items in each section and how to move an item from one section to another. Note: For RecyclerView I used AndroidX imports and not android.support.v7.widget.RecyclerView Setup We need to import the recycler view from AndroidX. The build.gradle
Recently, I had to add a perfect squared CardView and I wanted to achieve this without hardcoding its width and height. I happily discovered the power of ConstraintLayout. And so this is how I managed to create a perfect square which should work on every dimension. Heres some sample code that I used to create
The simplest way to add a bottom border line to a view is this one. If you search on Google and StackOverflow you will find many ways to do this, but they seemed overly complex compared to this one. So if you ever need a border line at the bottom of a view you can
We all will need at some point to show an activity indicator when our app has to perform lenghty data processing operations or when we have to wait for our app to load content. In Xamarin Forms we can use in a xaml file this property called ActivityIndicator. Below is the result of the above
In your application you might need to create a Circle image with a text inside it or just a simple circle that needs different colors for status for example. In this case we can use a Frame and add CornerRadius property like this: As you can see, there are more properties added like HasShadow or
You can set a LineBreakMode attribute to a Label that can have the following values: TailTruncation HeadTruncation MiddleTruncation CharacterWrap WordWrap NoWrap TailTruncation If you have a text that is to large to fit the width of your label, you can use the attribute called LineBreakMode=TailTruncation. This will display a text with “…” at the end
Create a RecyclerView in Android with Kotlin – A Step-by-Step Guide In today’s tutorial we’ll learn how to create a RecyclerView in Kotlin for Android with items that are clickable. This approach, distinct from the traditional ListView, offers a more dynamic and flexible way to display a scrollable list. Read on to discover how to
In this post we will create a ListView with ViewHolder adapter but we will write the code in Kotlin. For creating xml files for ListView and list items, follow the steps from this post. Next, you have to create a new Kotlin class for the adapter. Name the new created file MyCustomAdapter MyCustomAdapter.kt import android.content.Context import
1. Where should we keep constants in Kotlin? if you need constants to be accessed globally use const as top-level properties (not inside a class). In order to do this create a Kotlin file named Constants.kt. The file would look like this: This way you will be able to access the constants from anywhere within the
Intro Since I am a fan of DYI and love gadgets(and IoT), I started to play with a Raspberry Pi and ESP8266 for a while. I had some failing ideas like automating my curtains, after long plans and setup, I abandoned the idea because I couldn’t see a way to make it look nice with
Control flow: for, while, if, when This post is for beginners who want to start learning Kotlin language and already know Java. We will show simple examples of for, while, if, when in both languages, in parallel, for an easier understanding. We will use Log.e in order to print string messages, as from our point of view,
If you search on the internet about how to show a bulleted list from strings.xml using HTML tags, most of the answers will say that you should use a WebView, or to use the bullet symbol directly, or other alternatives. And on some posts I even read that you can’t use <li> tag from HTML
