Even if you wanted a single static function/method in a non-static class, you need to create what is called a companion object within your class. It is also true that Kotlin does not use the static keyword at all. The first thing to note, is that Kotlin does not define entire static class as “static classes”. Instead, we use what is called an object declaration. This is especially true with newer trends that bring more functional style programming mixed with object-oriented. Using statics in object oriented design is not really a necessity, but something we find ourselves doing from time to time. You can also join the conversation and test your knowledge throughout the course with learning checks through each module! If you like this series, be sure to check out my course on Pluralsight – Building Android Apps with Kotlin: Getting Started where you can learn more while building your own real-world application in Kotlin along the way. Java and some other programming languages to build Android apps (like C# and Xamarin or JavaScript/TypeScript for Hybrid implementations). We’ll also be drawing comparisons to how things are done in Kotlin vs. We’ll take a look at the basics of building Android apps with Kotlin from the SUPER basics, to the standard basics, to the not-so-basics.
This “Android Kotlin Basics” blog series is all about fundamentals. Meadow.Tip – Playing Jingle Bells with a Piezo Speaker Using C#.Xamarin.Tip – Fixing Missing iOS App Icons.Xamarin.Tip – iOS Push Notification Device Token Extraction in iOS 13+.It doesn’t matter how you define your static functions, as you have methods to make them all play better with Java. A class/object must be directly referenced (such as passing an instance into another function)īy using the and annotations, you can write static Kotlin functions that can be used from Java in a nice and friendly way.On the other hand, you should use a Companion or static object if you need to fulfil the following criteria: The inclusion of the class clutters things up. I currently believe that if you are writing a purely static function, you should add the function directly to the file (not inside a Companion or static object).
This is a question I am still trying to answer myself.
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