kotlin

问题 i make an adapter intended to show date and checkbox like image below it works fine, just like what i want but i got to a problem using same adapter in multiple dialog that i wanna show that have the same behavior i expect the checkbox in my second recyclerview not checked because i havent check the checkbox on my second recyclerview the data/ checked checkbox saved on first dialog is showing on my second adapter and so on i have try to using different adapter with same implementation. Here

问题 Today, when I was working on my android project, I saw this weird behavior of my app. When I click on an icon and move to a different activity, which would basically insert another child into the node to which first activity was listening to. But to my surprise, when return back, everything in the screen was doubled. When I refresh the view, it again would become normal. I repeated it many times, thinking it may be a glitch. But same result every time. When I look into database, new child was

问题 I have a class A in java and interface B in Kotlin. // kotlin interface B { fun optional() } // java class A implements B { } I want to write the default method (Java 8 feature) in Kotlin interface (B) and want to implement it in the class A. How can I achieve it? Thanks in advance. 回答1: In Kotlin, interface methods with bodies are by default compiled as following: // kotlin interface B { fun optional() { println("B optional body") } } is compiled roughly to: public interface B { void

问题 I have an Application class. open class AppController : MultiDexApplication() { companion object { @JvmStatic lateinit var instance: AppController private set } override fun onCreate() { super.onCreate() instance = this } } I use my code for extension. Int.kt fun Int.pxToDp(): Int { return TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_PX, this.toFloat(), AppControllerMaster.instance.applicationContext.resources.displayMetrics).toInt() } I need to use that in a unit test. when use that I

问题 I'm using Vert.x 3.5.3 . I have this (simple) Verticle: class DialPadVerticle : AbstractVerticle() { private companion object : KLogging() override fun start(future: Future<Void>) { vertx.eventBus().consumer(Address.DIALPAD_COMBINATIONS) { message: Message<Int> -> val input = message.body() logger.info { "Received: $input" } message.reply(JsonObject().put("result", DialPad().combinations(input))) } future.complete() } override fun stop(future: Future<Void>) { logger.debug { "Stopping ${this

问题 I have an Application class. open class AppController : MultiDexApplication() { companion object { @JvmStatic lateinit var instance: AppController private set } override fun onCreate() { super.onCreate() instance = this } } I use my code for extension. Int.kt fun Int.pxToDp(): Int { return TypedValue.applyDimension(TypedValue.COMPLEX_UNIT_PX, this.toFloat(), AppControllerMaster.instance.applicationContext.resources.displayMetrics).toInt() } I need to use that in a unit test. when use that I

问题 I'm using Vert.x 3.5.3 . I have this (simple) Verticle: class DialPadVerticle : AbstractVerticle() { private companion object : KLogging() override fun start(future: Future<Void>) { vertx.eventBus().consumer(Address.DIALPAD_COMBINATIONS) { message: Message<Int> -> val input = message.body() logger.info { "Received: $input" } message.reply(JsonObject().put("result", DialPad().combinations(input))) } future.complete() } override fun stop(future: Future<Void>) { logger.debug { "Stopping ${this

问题 I need to implement a REST-Endpoint, that receives multipart/form-data I use - Spring Boot - Kotlin - Spring MVC A multipart form submit with the following parts: deployment-name ----- text/plain enable-duplicate-filtering ----- text/plain deploy-changed-only ----- text/plain deployment-source ----- text/plain tenant-id ----- text/plain * ----- application/octet-stream The Rest Controller looks so: @PostMapping("/data/deployment/create") fun uploadDmn(@RequestBody() file: Any){ } When I

问题 I wrote a simple program that takes the user's input from the console and then prints it. But when the user enters the input, it requests a second user input and only reads the second input. Code: fun main(args: Array<String>) { print("Enter text: ") val stringInput = readLine()!! println("Readed text: $stringInput") } Console: > Task :MainKt.main() Enter text: FirstInput SecondInput Disconnected from the target VM, address: 'localhost:37282', transport: 'socket' Connected to the target VM,

问题 I wrote a simple program that takes the user's input from the console and then prints it. But when the user enters the input, it requests a second user input and only reads the second input. Code: fun main(args: Array<String>) { print("Enter text: ") val stringInput = readLine()!! println("Readed text: $stringInput") } Console: > Task :MainKt.main() Enter text: FirstInput SecondInput Disconnected from the target VM, address: 'localhost:37282', transport: 'socket' Connected to the target VM,