Questions tagged [kotlin]
Kotlin is a cross-platform, statically typed, general-purpose high-level programming language with type inference. This tag is often used alongside additional tags for the different targets (JVM, JavaScript, native, etc.) and libraries/frameworks (Android, Spring, etc.) used by Kotlin developers, if the question relates specifically to those topics.
kotlin
96,538
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Adding module-info.java to a Kotlin project causes build error
I was trying to make a JavaFX project with Kotlin, Gradle on IntelliJ IDEA.
Using Java 17.
At first, I didn't used module-info.java, and it worked well, but it warned me
"WARNING: Unsupported ...
- 3
2
votes
1
answer
50
views
Resolving scroll conflict: PullToRefresh (vertical) vs. Horizontal Pager in Jetpack Compose
I'm developing a screen in Jetpack Compose that combines two scrolling components: a PullToRefresh for vertical scrolling and an ImageSlider implemented using HorizontalPager for horizontal scrolling. ...
- 7,055
2
votes
1
answer
44
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Migrating to Kotlin 2.0.0 causes compile time errors associated with nullablity
I am currently migrating my Android application to Kotlin 2.0.0:
val myConfig: Configuration? = null
val myFrameRate: String? =
getPreferences(Context.MODE_PRIVATE).getString("my_FrameRate&...
0
votes
1
answer
391
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Why the ModalBottomSheet is behind the navigation bar?
I need to implement a ModalBottomSheet in my app. But before doing that, I test it in a test app following this example.
The problem is that the ModalBottomSheet does not appear above the navigation ...
- 21
1
vote
1
answer
28
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RequestBody object with single property spring-boot
Language: Kotlin, Spring version: 3.2.3
I have controller that gives an object with single property:
@RestController
@RequestMapping("")
class Test {
@PostMapping("khar")
...
- 91
3
votes
1
answer
48
views
Enums in JNI GetMethodID signature parameter list
So, this is an edge case that no amount of Googling seems to unearth.
I have an enum in Kotlin;
package myapp
public enum State {
STATE_SUCCEEDED,
STATE_FROZEN,
STATE_WAITING,
...
- 313
0
votes
0
answers
10
views
Android compose `NotificationListenerService.onNotificationPosted` is never called
I'm trying to add a notification listener to a Kotlin android compose project:
My AndroidManigest.xml:
<application>
<!-- ... -->
<service
android:name=&...
- 7,691
-1
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0
answers
10
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Could not find gradle-8.3.1.jar (com.android.tools.build:gradle:8.3.1)
I want to create a new project I got this error:
A problem occurred configuring root project 'My Application'.
Could not resolve all files for configuration ':classpath'.
Could not find gradle-8.3.1....
- 17.3k
0
votes
0
answers
11
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Crash on Destroy Method: "View ... does not have a NavController set"
I am getting a crash in the onDestroy method with the following error:
`Fatal Exception: java.lang.RuntimeException: Unable to destroy activity {com..presentation.screens.main.MainActivity}: java.lang....
0
votes
1
answer
17
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How to Pass ArrayList of Custom Objects Between Activities in Kotlin on Android Studio
I'm working on an Android project in Kotlin where I store user information in a custom object. I need to pass an ArrayList<CustomObject> from one activity to another and display the stored ...
0
votes
1
answer
15
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Could not get unknown property 'kotlin_version' Flutter packages
after updating Flutter I'm getting this error with almost every package I add to the project. For this example we'll use the permission_handler package.
FAILURE: Build failed with an exception.
* ...
- 810
3
votes
2
answers
2k
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How to change the color of the icons in the navigation bar in Jetpack Compose?
I have modified the color of the navigation bar to put a lighter color:
<item name="android:navigationBarColor" tools:targetApi="1">@color/navigation_bar</item>
Now ...
-1
votes
2
answers
48
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how to solve the stupid error your project requires a newer version..?
BUILD FAILED in 1m 21s
Running Gradle task 'bundleRelease'... 82.6s
┌─ Flutter Fix ─────────────────────────────────────────────────────────────────────────────────────┐
│ [...
- 810
-2
votes
0
answers
25
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Linking of multiple apps [closed]
If we create an flutter application (Android + iOS) using visual studio code "we have 3 applications named A, B & C. A is the main app and the other two apps (B & C) are separate apps. i ...
- 12.3k
17
votes
7
answers
35k
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Kotlin - Error: Could not find or load main class _DefaultPackage
I followed the Kotlin tutorial for eclipse here : Getting Started With Eclipse Luna
However, I'm running into this error:
Error: Could not find or load main class _DefaultPackage
Anyone who knows ...
