}constructor(context: Context) :super(context) {init(context) }constructor(context: Context, attrs: AttributeSet) :super(context, attrs) {init(context) }constructor(context: Context, attrs: AttributeSet, defStyl
The above examples look easy, but sometimes they don’t work as a solutionwhen we can’t add an additional constructor or override the clone method. This might happen when we don’t own the code, or when the object graph is so complicated that we wouldn’t finish our project on time i...
Let’s make sure Docker is installed and running on our development environment. 2.1. Kotest Dependencies To start with test containers in Kotest, we must add the necessary dependencies to our project. Let’s include the Kotest framework and the Testcontainers library, along with the Kotest ...
How does the lambda function work in Kotlin? The lambda function is the anonymous function, so it does not have a name to call and utilize the function on the kotlin language. The lambda expression is generated and assigned as a separate variable, and also the expression does not have param...
ADocument Managerclass is created for managing the storage of documents. classDocumentManager{privatevalcontext:Contextconstructor(context:Context){this.context=context}funlistDocuments():MutableList<Long>{varexternalFilesDir=context.getExternalFilesDir("")vardocumentTimestamps=mutableListOf<Long>()if(externalFi...
Mainly we cannot create the object of the sealed classes so that the sealed classes cannot be instantiated; also, all the sub and child classes of the sealed classes must be declared within the same file where the sealed class is to be declared on it. And also, the constructor of the se...
This is useful to be able to create @Configuration or @Transactional beans without having to add the open qualifier required by CGLIB proxies for example. In order to be able to use Kotlin non-nullable properties with JPA, Kotlin JPA plugin is also enabled. It generates no-arg constructors ...
After executing the constructor, Spring Boot will run the twilioInit() method annotated with @PostConstruct. That method uses the Twilio.init() function to initialize Twilio, as explained in the Twilio official documentation. Twilio is now working. It is time to structure your Spring Boot project...
Today we would like to share how we test concurrency primitives in Kotlin Coroutines. Many of our users are delighted with the experience of using coroutines to write asynchronous code. This does not
I'm not going to walk through the detailed implementation of that for every version of every supported library (if you're interested, feel free to explore the full sourceopens in a new tab) but let's look at a couple of illustrative examples. Some of this logic is written in Kotlin, ...