After spinning my head around for a while with this problem, I came across to the solution. It was really hard as there is no official tutorial, blog etc out there to help with this problem as of now. I had to do several hit and trial for all the combination of gradle plugins and … Read more
To use a coroutine you need a couple of things: Implement CoroutineScope interface. References to Job and CoroutineContext instances. Use suspend function modifier to suspend a coroutine without blocking the Main Thread when calling function that runs code in Background Thread. Use withContext(Dispatchers.IO) function to run code in background thread and launch function to start … Read more
Quick answer block: SCRIPT.() -> Unit = {} This represents a “function literal with receiver”. It’s a function parameter with a function type () -> Unit and SCRIPT as it’s receiver. Function Literals/Lambda with Receiver Kotlin supports the concept of “function literals with receivers”. It enables the access on visible methods and properties of a … Read more
This is Kotlin, not java. You do not need to get the id of it. In kotlin, just write: var editTextHello = editTextHello.text.toString() use the beauty of kotlin 😉 P.s: BTW, better to choose xml IDs like edx_hello and for the kotlin part, var editTextHello. Then you can differentiate between xml vars and kotlin vars.
Since 1.2.0-alpha01 userScrollEnabled was added to LazyColumn, LazyRow, and LazyVerticalGrid Answer for 1.1.0 and earlier versions: @Ryan’s solution will also disable programmatically-called scrolling. Here’s a solution proposed by a maintainer in this feature request. It’ll disable scrolling, allow programmatic scrolling as well as children view touches. private val VerticalScrollConsumer = object : NestedScrollConnection { override … Read more
If AnInterface is Java, you can work with SAM conversion: val impl = AnInterface { inst, num -> //… } Otherwise, if the interface is Kotlin… interface AnInterface { fun doSmth(inst: MyClass, num: Int) } …you can use the object syntax for implementing it anonymously: val impl = object : AnInterface { override fun doSmth(inst:, … Read more
Actually Kotlin knows the difference between the two methods in your example, but jvm will not. That’s why it’s a “platform” clash. You can make your second example compile by using the @JvmName annotation: class Foo { @JvmName(“barString”) fun bar(foo: List<String>): String { return “” } @JvmName(“barInt”) fun bar(foo: List<Int>): String { return “2”; } … Read more
Due to type erasure, actual generic arguments cannot be obtained through T::class token of a generic class. Different objects of a class must have the same class token, that’s why it cannot contain actual generic arguments. Edit: Since Kotlin 1.3.50, following the technique described below to get type information for a reified type parameter is … Read more
Try updating the dependency of AppCompat to rc01 version. This solved the problem for me. implementation ‘androidx.appcompat:appcompat:1.3.0-rc01’
The issue is most likely that you forgot to depend on the reflection libraries which were needed for the reflective functions of Kotlin. On the Java platform, the runtime component required for using the reflection features is distributed as a separate JAR file (kotlin-reflect.jar). This is done to reduce the required size of the runtime … Read more