Issue
Im trying to make the next query making use of Kotlin SQL Exposed framework.
SELECT interation_id, group_id, max(version)
FROM interaction
GROUP BY group_id;
I have a table of interactions, and each interaction group can have multiple interactions, each one marked with a different version. I want...
Friday, January 26, 2024
Hilt Testing - Replace internal Hilt-Module in separate Android multi-module app
Issue
I have an Android app where the codebase is split into 2 different modules: App and Domain
Goal: I am attempting to use the Hilt provided testing functionality to replace a Domain internal dependency when creating App tests.
In Domain, I have an internal interface with an internal implementation,...
Issue with empty queryProductDetailsAsync
Issue
I have an issue retrieving product details, I have setup in my google play console this way:
my google play config
And I have done the following:
myLog("MYAPP-TEST---1")
val purchasesUpdatedListener =
PurchasesUpdatedListener { billingResult, purchases ->
if (billingResult.responseCode...
Parse string date to millis in kotlin
Issue
I am using SDF to parse a string date to millis with below code
private fun dateToMilliseconds(dateValue: String): Long? {
val sdf = SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSS")
val date: Date
try {
date = sdf.parse(dateValue)!!
return date.time
} catch (e: Exception) {
e.printStackTrace()
}
return...
Kotlin Generics with upper and lower bounds required
Issue
I come across a generics problem that I'm struggling with. I've distilled the code down to a simple example to show the problem, as follows
I have a simple hierarchy of types:
open class Fruit
class Apple : Fruit() {
fun crunch(): String = "CRUNCH!"
}
class Orange : Fruit() {
fun squish():...
Navigation with Arguments with Jetpack Compose
Issue
I've been troubleshooting this issue for couple of days now about navigating with args in jetpack compose. I feel like I'm missing something simple, really simple that I can't figure out somehow.
I tried making sure I'm coding it correctly but to no avail I still get the error.
So the error:
Navigation...
How to make an edittext inside NestedScrollView have height = "parent"
Issue
I want the Edittext to have a height equal to the full height of the NestedScrollView, but I don't know how to do it
<androidx.core.widget.NestedScrollView
android:layout_width="match_parent"
android:layout_height="0dp"
app:layout_constraintTop_toBottomOf="@id/et_title"
...
INTELLIJ IDEA Build Output Error : Cannot access 'java.io.Serializable' which is a supertype of 'kotlin.String'
Issue
I recently installed Intellj Idea Community Edition for learning Kotlin:
since I'm a Beginner I write some basic code which is as follows:
fun main() {
val x = readln().toString();
...
Unresolved reference: ExpandLess
Issue
Iam complete new to Kotlin and to Jetpack Compose
i have made the Jetpack Compose basics (CodeAlong) and at the end it keeps saying Unresolved reference Expandless ore Unresolved reference: ExpandMore.
Can someone help me find the Right thing?!
I searched a bit but my Knowledge isn't big enough...
Jetpack compose preview crashes with hiltViewModel<>()
Issue
I use compose version 1.1.0-beta03 and hilt-navigation-compose:1.0.0-beta01.
this is my Composable code:
fun EngagementBotChart(modifier: Modifier = Modifier) {
val newHomeViewModel = hiltViewModel<HomeViewModel>()
AndroidView(
modifier = modifier.fillMaxSize(),
factory...
The project is using an incompatible version (AGP 8.2.1) of the Android Gradle plugin. Latest supported version is AGP 8.2.0-alpha14
Issue
I'm encountering an issue with Android Gradle Plugin (AGP) version in my project. Currently, I am using AGP 8.2.1, but its seems to be incompatible. The error message says that the latest supported version is AGP 8.2.0-alpha14.
[Error] Incompatible AGP Version: The project is using AGP 8.2.1, but...
IntellIJ IDEA Kotlin - Expecting an element
Issue
I am new to Kotlin and am now struggling with unit testing my code.
I am trying to mock the restTemplate that uses an array in the exchange method. I found that the correct way to do that...
Android app sometimes recreates the entire Activity on launch
Issue
I'm currently working on a small project that uses DataStore<Preferences> to save some data. At seemingly random times, when I would uninstall and reinstall the app, I would get the exception: java.lang.IllegalStateException: There are multiple DataStores active for the same file
This is...
Micronaut is slow for the first request after startup, after that its not
Issue
I have a doubt regarding micronaut with kotlin, I created a simple api with two routes, one is for hello world and another one is for returning the received query params, when I hit any request to the web service for the first time after startup it takes around 100-200ms, but any requests after...
'getView' overrides nothing
Issue
I am new about android studio. I tried to use ArrayAdapter. But when i complete my codes, it says "'getView' overrides nothing".I getting this error in "return teksatirview code.
this is my arrayadapter class:
package com.example.burcrehberi
import android.content.Context
import android.view.LayoutInflater
import...
How do I make Gradle 8+ compile Groovy code before Kotlin code? and mix them in one project?
Issue
Using a very recent version of gradle (8.5) I want to compile Groovy code before Kotlin code. This will enable me to gradually migrate the entire project from Groovy to Kotlin using a top-down approach. (i.e., migrate one controller to Kotlin while the underlying dependencies remain in Groovy).
The...
how to enable @Preview for kotlin desktop compose demo project?
Issue
I downloaded the demo project to study kotlin compose.
I try to add @Preview on a @Composable fun, but get warn that: Unresolved reference: Preview
I add implementation("androidx.compose.ui:ui-tooling-preview:1.1.1") in kotlin.sourceSets.named("CommonMain").dependencies in build.gradlw.kts:
...
Read mesibo local db using Room Library
Issue
I'm using device explorer and find mesibo local database written using SQLite
It's possible to access that file using Room library rather than using mesibo SDK?, I want to make advance...
notifyDataSetChanged on fragment does not work
Issue
I'm building an app, I have a chat I moved into a fragment. it worked before and now it doesn't.
I understand it's a known problem but still I couldn't solve the issue.
When I'm debugging I can see that I'm getting the messages from firebase and the list at the adapter is not empty but after notifyDataSetChanged...
is it okay? to have same name of parameter and variable in function call in kotlin
Issue
i have query that is it fine to use to use named parameter which having name parameter and the variable name same in a function call
for example
fun fun1( to:string ){
//body}
fun fun2( ){
to = "xyz"
fun1( to = to)
}
calling fun1 which have a parameter name "to" and passing variable "to" is it...
Memory leak in kotlin due to Closures?
Issue
I have a basic understanding of memory management in Kotlin i.e. local variables are stored in the stack and are managed by the OS and the objects are created on the heap and JVM manages them. Moreover, objects are passed as copy of reference and primitive types are passed as copy in functions.
In...
Kotlin Ternary Conditional Operator
Issue
What is the equivalent of this expression in Kotlin?
a ? b : c
This is not valid code in Kotlin.
Solution
In Kotlin, if statements are expressions. So the following code is equivalent:
if (a) b else c
The distinction between expression and...
Using Eclipse for Kotlin programming does not work correctly
Issue
as a Java programmer, I have recently decided to learn Kotlin and have encountered a problem with Eclipse and Kotlin. Both Eclipse and the plugins were all updated to the latest version.
Here's the situation in Eclipse.
Code that works totally fine:
fun main(args: Array<String>) {
println("Starting...
