kotlin

问题 As the title suggest, the coroutine builder runBlocking is missing in the coroutine liblary I just added in my build.gradle. Funny thing is every other thing appears to be available, GlobalScope , CoroutineScope.launch CoroutineScope.async all present. runBlocking isn't. What am I doing wrong? here is my build.gradle buildscript { ext { ktor_version = "1.1.1" kotlin_version = "1.3.20-eap-52" } dependencies { classpath "org.jetbrains.kotlin:kotlin-frontend-plugin:0.0.44" classpath "org

问题 As the title suggest, the coroutine builder runBlocking is missing in the coroutine liblary I just added in my build.gradle. Funny thing is every other thing appears to be available, GlobalScope , CoroutineScope.launch CoroutineScope.async all present. runBlocking isn't. What am I doing wrong? here is my build.gradle buildscript { ext { ktor_version = "1.1.1" kotlin_version = "1.3.20-eap-52" } dependencies { classpath "org.jetbrains.kotlin:kotlin-frontend-plugin:0.0.44" classpath "org

问题 Is is possible to call javascript functions from kotlin JVM based project? Like for example I got class: class JS{ fun callJS( ){ // somehow call js function } } 回答1: You can use a ScriptEngineManager with JavaScript as the engine. You use ScriptEngineManager.getEngineByName to get the engine itself, but that doesn't allow calling methods from Java. In order to do this, you need an Invocable. This is done by first eval uating the script (either as a Reader or String) and then casting it as an

问题 I am using FCM for sending notifications in my app. The first version of my app is in the testing phase and there is an error in Samsung devices because FCM token is not getting generated in these devices. Here is my code which generates the token: FirebaseInstanceId.getInstance().instanceId.addOnCompleteListener(OnCompleteListener { task -> if (!task.isSuccessful) { return@OnCompleteListener } // Get new Instance ID token val token = task.result?.token val ref = FirebaseDatabase.getInstance(

问题 I am using FCM for sending notifications in my app. The first version of my app is in the testing phase and there is an error in Samsung devices because FCM token is not getting generated in these devices. Here is my code which generates the token: FirebaseInstanceId.getInstance().instanceId.addOnCompleteListener(OnCompleteListener { task -> if (!task.isSuccessful) { return@OnCompleteListener } // Get new Instance ID token val token = task.result?.token val ref = FirebaseDatabase.getInstance(

问题 I am using FCM for sending notifications in my app. The first version of my app is in the testing phase and there is an error in Samsung devices because FCM token is not getting generated in these devices. Here is my code which generates the token: FirebaseInstanceId.getInstance().instanceId.addOnCompleteListener(OnCompleteListener { task -> if (!task.isSuccessful) { return@OnCompleteListener } // Get new Instance ID token val token = task.result?.token val ref = FirebaseDatabase.getInstance(

问题 I wonder what is the correct way to read, parse and serve a file from resources. Currently, I do something like this: fun getFile(request: ServerRequest): Mono<ServerResponse> { val parsedJson = objectMapper.readValue(readFile("fileName.json"), JsonModel::class.java) // modify parsed json return ok().contentType(APPLICATION_JSON).bodyValue(parsedJson) } private fun readFile(fileName: String) = DefaultResourceLoader() .getResource(fileName) .inputStream.bufferedReader().use { it.readText() } I

问题 I am able to retrieve all the events from the device calendar from the below code, @SuppressLint("MissingPermission") private fun getAccountCalendarEvents(selectedEmail: String) { var count = 0 val projectionArray = arrayOf( CalendarContract.Calendars._ID, CalendarContract.Events.TITLE, CalendarContract.Events.DESCRIPTION, CalendarContract.Events.DTSTART, CalendarContract.Events.DTEND, CalendarContract.Events.ALL_DAY, CalendarContract.Events.EVENT_LOCATION, CalendarContract.Attendees

问题 I'm just getting started with Kotlin, so I apologize if it's a dumb problem (which I think it probably is). I'm following this guide, but ran in an issue: the readLine function ignores my first input, and returns only the second line I insert. fun main() { println("What's your name?") val name= readLine() println("Hello $name!") } And this is the output I'm getting (">" marks my input into the console): What's your name? > Paul > John Hello John! I'm using IntelliJ IDEA Community 2020.2, if

问题 Based on this issue about using NSString formatting I try to implement multiplatform implementation for formatting when using vararg , with no luck so far. What I did added FoundationInterop.def language = Objective-C --- #import <Foundation/NSString.h> NSString* format(NSString* format, ...) { va_list args; va_start(args, format); NSString* result = [[NSString alloc] initWithFormat:format arguments:args]; va_end(args); return result; } compiled it in gradle targets { final def iOSTarget =