When Kotlin Compiler is used to compile code, it first transforms into Intermediate Representation (IR). Then, it converts IR to Java byte code in a JVM-based environment. The first step is called “compiler frontend,” and later is called “compiler backend”. So, LLVM is our compiler ba...
This Kotlin Data Class tutorial explains when and how to use data class in Kotlin and different features like Syntax, Constructor, Operations, etc: Kotlin provides a great feature through data classes in order to eliminate a lot of boilerplate code like constructors, getter/setters, toString met...
To use this, add this to your gradle build file: implementation 'org.osmdroid:osmdroid-shape:VERSION' In Kotlin valfolder:List<Overlay>=ShapeConverter.convert(mapView,File(myshape)) mapView.overlayManager.addAll(folder) mapView.invalidate() ...
Kotlinis 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 place to store data. A variable has a name and a data type. A data type determines what values can be assigned to the variable....
Use the also Scope Function in Kotlin As mentioned in the table above, the also function in Kotlin provides a context object as an argument (it). We can use also when we need to perform actions that take the context object as the argument of any function. Another great way to use also...
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...
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...
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 ...
This tutorial explains what is Kotlin Companion Object, its syntax, and how to use it in your program with Java Code examples: Kotlin provides a companion keyword that can be used to create static members for a class definition. In other languages like Java and C#, using thestatickeyword to...
data class RobotStatus(val robot_status: Int? = -1) : BaseSubscribeMsg(){} 创建内联方法 inline fun <reified T> Gson.fromJson(json: String) = this.fromJson<T>(json, object: TypeToken<T>() {}.type 使用 val resp ="{\"topic\": \"/robot_system_status\", \"msg\": {\"header\...