android-device-monitor Archives

Kotlin: Existing 3-function callback to Kotlin Coroutines

January 17, 2021 Williams Sarah

Question or issue of Kotlin Programming: I have a general question with a specific example: I’d like to use Kotlin coroutine magic instead of callback hell in Android when taking a picture.

Kotlin: Why and when to use @JvmStatic with companion objects?

January 17, 2021 Abreonia Ng

Question or issue of Kotlin Programming: I’m trying to understand the difference between using/not using @JvmStatic, and when I should use either one.

Kotlin: combine Intent flags in Kotlin

January 17, 2021 Li Samantha

Question or issue of Kotlin Programming: I want to combine two intent flags as we do bellow in android

Kotlin: Kotlin – Most idiomatic way to convert a List to a MutableList

January 17, 2021 Dina Emily

Question or issue of Kotlin Programming: I have a method (getContacts) that returns a List and I need to convert this result to a MutableList. Currently the best way I can think of doing it is like this:

Kotlin: compileKotlin block in build.gradle file throws error “Could not find method compileKotlin() for arguments […]”

January 17, 2021 Thomas Linda

Question or issue of Kotlin Programming: I’m trying to configure Kotlin to work with Java 1.8 in my Android project. I’ve tried adding the compileKotlin block at the bottom of my build.gradle file, but I get an error if I do so.

Kotlin: FragmentPagerAdapter deprecated

January 17, 2021 Gelbero Isabella

Question or issue of Kotlin Programming: Since API 27 FragmentPagerAdapter is deprecated. What’s the best alternative to use for this?

Kotlin: RecyclerView itemClickListener in Kotlin

January 17, 2021 Dennison James

Question or issue of Kotlin Programming: I’m writing my first app in Kotlin after 3 years of experience with Android. Just confused as to how to utilize itemClickListener with a RecyclerView in Kotlin. I have tried the trait (edit: now interface) approach, very Java-like public class MainActivity : ActionBarActivity() { protected override fun onCreate(savedInstanceState: Bundle?) […]

Kotlin: Unit testing Room and LiveData

January 17, 2021 Baxter Jennifer

Question or issue of Kotlin Programming: I’m currently developing an app using the newly Android Architecture Components. Specifically, I’m implementing a Room Database that returns a LiveData object on one of its queries. Insertion and querying work as expected, however I have an issue testing the query method using a unit test.

Kotlin: Close/hide the Android Soft Keyboard with Kotlin

January 17, 2021 Darla Noah

Question or issue of Kotlin Programming: I’m trying to write a simple Android app in Kotlin. I have an EditText and a Button in my layout. After writing in the edit field and clicking on the Button, I want to hide the virtual keyboard.

kotlin.TypeCastException: null cannot be cast to non-null type com.midsizemango.databasekotlin.Note

January 17, 2021 Arden Callum

Question or issue of Kotlin Programming: I am trying to code my app in Kotlin, but I am getting null cannot be casted to non-null type and app force stops when I open EditNoteActivity at EXTRA_NOTE probably.