kotlin

问题 In my Kotlin spring boot project, I am using Kotlin DSL Gradle, with three subprojects. Two of which are security which depends on database . In IntelliJ, the application runs successfully and performs as expected (when run as a Spring Boot application run config). However, when I try to build the project with Gradle ./gradlew clean build I get e: /security/src/main/kotlin/com/path/security/jwt/JwtRealm.kt: (3, 26): Unresolved reference: database e: /security/src/main/kotlin/com/path/security

问题 I tried to use gradle for transpiling Kotlin to Js. When I run the example from https://www.codeflow.site/fr/article/kotlin-javascript I got the error : Could not initialize class org.jetbrains.kotlin.gradle.internal.KotlinSourceSetProviderImplKt which comes from line apply plugin: 'kotlin2js' of build.gradle . I have no idea of what the missing class is and why kotlin2js is asking for it. Any suggestion ? 回答1: Solved this issue by setting the latest Kotlin version (1.3.72) in build.gradle

问题 I tried to use gradle for transpiling Kotlin to Js. When I run the example from https://www.codeflow.site/fr/article/kotlin-javascript I got the error : Could not initialize class org.jetbrains.kotlin.gradle.internal.KotlinSourceSetProviderImplKt which comes from line apply plugin: 'kotlin2js' of build.gradle . I have no idea of what the missing class is and why kotlin2js is asking for it. Any suggestion ? 回答1: Solved this issue by setting the latest Kotlin version (1.3.72) in build.gradle

问题 Our server is used to Nginx as webserver and add compile module of nginx_push_stream. Before used to push stream had used to Restfull then changed to Websocket but websocket sometimes loss when the client or server had small bandwith. At 2019 year, from Websocekt to Server Sent Event (SSE) / event-source such as event stream or text/event-stream to reduce loss both of client or server. Please anyone have any idea for library event stream is able to use to android client and iPhone client. I

问题 Our server is used to Nginx as webserver and add compile module of nginx_push_stream. Before used to push stream had used to Restfull then changed to Websocket but websocket sometimes loss when the client or server had small bandwith. At 2019 year, from Websocekt to Server Sent Event (SSE) / event-source such as event stream or text/event-stream to reduce loss both of client or server. Please anyone have any idea for library event stream is able to use to android client and iPhone client. I

问题 Our server is used to Nginx as webserver and add compile module of nginx_push_stream. Before used to push stream had used to Restfull then changed to Websocket but websocket sometimes loss when the client or server had small bandwith. At 2019 year, from Websocekt to Server Sent Event (SSE) / event-source such as event stream or text/event-stream to reduce loss both of client or server. Please anyone have any idea for library event stream is able to use to android client and iPhone client. I

问题 What is the difference between: definition 1 data class Person (var name:String, var age:Int) definition 2 class Person (var name:String, var age:Int) definition 3 class Person (){ var name:String = "" var age:Int = 1 } In the 3 cases when i use the autocomplete i saw the same methods availables like a POJO... is the same but 3 differents ways? 回答1: Difference in equals , hashCode , & toString the most important difference between definition 1 and definitions 2 & 3 is that in definition 1 ,

问题 I'm trying to access chatting room Using firestore and coroutines. fun getOwner() { runBlocking { var de = async(Dispatchers.IO) { firestore.collection("Chat").document("cF7DrENgQ4noWjr3SxKX").get() } var result = de.await().result } But i get error like this : E/AndroidRuntime: FATAL EXCEPTION: Timer-0 Process: com.example.map_fetchuser_trest, PID: 19329 java.lang.IllegalStateException: Task is not yet complete at com.google.android.gms.common.internal.Preconditions.checkState(Unknown Source

问题 So, I recently started experimentation with coroutines, I switched from Rxjava2 to coroutines, I haven't got a grasp of it yet but still, I ran into a condition where I needed to observe my database change and update the UI corresponding to that. RxJava used to provide me with Flowables, Completeable etc. using that I would be able to observe changes in Db. abstract fun insert(data: SomeData): Long @Query("SELECT * FROM somedata_table") abstract fun getData(): Flowable<List<SomeData>> So here

问题 All of sudden I start getting this error, and I am not getting idea why if anyone just let me know where this error is, will be enough helpful. As much I am able to get is this because of new update of android studio. Detailed summary of error I am getting. Task :app:kaptDebugKotlin ANTLR Tool version 4.5.3 used for code generation does not match the current runtime version 4.7.1ANTLR Runtime version 4.5.3 used for parser compilation does not match the current runtime version 4.7.1ANTLR Tool