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Tag: kotlin
What is the difference between Sealed class and inheritance principle in Kotlin?
I’m new with Kotlin. I’m reading a book and a sealed class is displayed there as an “extension” of Enum. I can’t see the similarity between them. The way I see the things, Sealed class is more related to inheritance, because each class can inherit from it and to add function and …
How Kotlin coroutines will use Project Loom? [closed]
Closed. This question is opinion-based. It is not currently accepting answers. Want to improve this question? Update the question so it can be answered with facts and citations by editing this post. Closed 2 years ago. Improve this question Right now, Kotlin coroutines are implemented without help of JVM. It …
How to add a KDoc comment for the receiver of a Kotlin extension function (first parameter in Java, `this` in Kotlin)
Consider this non-extension function: When I use this function in kotlin and java, I can see its parameter name: expression. I could also write this same functionality as an extension function: When I write it as an extension function in this manner, the parameter name of the Boolean that it is called on (the…
Kotlin, Java 8 and Sonar coverage showing as 0
I have a kotlin project using Java 8 and I use Sonar to measure code coverage I am using the latest version of Sonar and noticed the coverage has gone down due to changes in the openjdk. My tests are using Mockito and PowerMockito. Some tests are failing due to reflection errors. When I add the following jvm …
Does Kotlin’s version of Java’s for each have the same limitations?
I’m currently learning Kotlin coming from Java. In Java, doing for(String s:stringList){ if(condition == true) stringList.remove(s); } doesn’t work, as you can only read data with for each. Does …
shared image file in Kotlin android studio
I have an application in which I try to share a photo, but when you share the application it crashes. log: Answer The exception raised is FileUriExposedException is caused by The exception that is thrown when an application exposes a file:// Uri to another app. When targeting Api 24 or higher you need to use …
How to get the current working directory in Kotlin?
I need to know the full path of my current working directory of my simple application using Kotlin. Answer This will provide the full absolute path from where application will run.
Android Paging Library: How to intelligently switch Between online and offline data?
I am following this tutorial by Raywenderlich on paging-library-for-android-with-kotlin on how to use android paging library. This is one of the easiest tutorials on the net and I have followed it thoroughly. However, I would like to make some changes so that I can intelligently switch between online data and…
Cannot be provided without an @Provides-annotated method (Dagger 2 in Android Kotlin)
searched on many sites and in various articles, but without effect, so I ask for your help with Dagger 2 (DI) I can not understand what the problem is I’m new to Dagger 2 (Di) and I’m just studying it, please help me understand My code: MainActivity.kt App.kt ServiceBuild.kt NetworkService.kt AppN…