This article shows how to use variables in Kotlin. Kotlin is a statically-typed programming language that runs on the Java virtual machine. The type of every expression is known at compile time. A variable is a
We usually use thewith()function in Kotlin when we want to invoke an object implicitly, as shown in this example. Note how we implicitly call theisEmpty(),add(), andforEach()methods the list without using its object. Thewith()function uses this list as the receiver and calls any field...
Use the same steps we used to execute and test the first example, and you will get a Toast message displayed on the screen, as we have seen in the other examples. Use the View.OnClickListener Interface on the MainActivity Class in Kotlin The View.OnClickListener callback is an interface...
CameraX aims to demonstrate how to use CameraX APIs written in Kotlin. Overview CameraX is a Jet-pack support library, built to help you make camera app development easier. It provides a consistent and easy-to-use API surface that works across most Android devices, with backward-compatibility ...
We can also use truncated when using the joint string function in a kotlin. We are using limit and truncated arguments together. In kotlin, the default value is “…”. We can use anything we need to customize. The below example shows how we are using the joinToString function with limit...
Introduction to Kotlin Data Class Inheritance Kotlin data class inheritance is used to hold the data; this class contains the utility functions and standard functionality driven by data. It has the data for the application; it is like a class pojo which we use in java for holding the data. ...
In Kotlin, we can create ranges using therangeTo()anddownTo()functions or the .. operator. We can use ranges for any comparable type. By default, they’re inclusive,which means that the 1..4 expression corresponds to the values 1,2,3 and 4. ...
3-click rule : to create a successful app, make your app easy for people to use. That means designing it so they don't have to work hard to figure it out and have fun effortlessly. Conversely, when a mobile app is hard to grasp, it reduces user interactions and engagement. So, be...
Kotlin was claimed to be a response to the massive amounts of code developers often had to write in Java and to Scala’s low-speed compilation. Today, many famous IT companies use Kotlin in their projects. The attention to this language is continuing to grow, as it wins over developers ...
To use this, add this to your gradle build file: implementation 'org.osmdroid:osmdroid-shape:VERSION' In Kotlin val folder: List<Overlay> = ShapeConverter.convert(mapView, File(myshape)) mapView.overlayManager.addAll(folder) mapView.invalidate() Where myshape is a .shp file somewhere on th...