I want to display different errors to the user when they are logging in through AWS Amplify using Kotlin. This is what I have set up as my last parameter of Amplify.Auth.signIn(): “error” is a “Throwable?” which I wanted to cast to various AWS exceptions and check whether the cast was …
Tag: kotlin
JavaFX: How to overwrite button action in custom Dialog
I work on desktop application based on JDK 8 and JavaFX. I created custom dialog class with 2 buttons(finish and cancel). My goal is to return the list of strings added in dialog (after clicking finish button, dialog returns list. Cancel makes return empty list). I have problem, beacause function showAndWait …
Kotlin gzip uncompress fail
I try to simplify my java gzip uncompress code to kotlin. But after I changed, it sames broken. Here is the java code This is my kotlin code. And I got this error. It seems that the decompression process was interrupted by reader? Answer The readText(charset: Charset = Charsets.UTF_8) decodes the bytes into U…
How can I resize a rectangular image to a square image while maintaining aspect ratio in Java?
I need to resize rectangular images (400×600) into square images (600×600) while keeping aspect ratio of the original image. The newly added pixels need to be transparent. Like this. I need it in java or kotlin code. But if that’s not possible then I don’t mind a solution in any other la…
Function “onButtonClicked” is never use
I have created a function called “onButtonClicked” and I want the button (bt301_tw) to send me to the activity (MainActivity_04_ReadioGroup). The problem is when I create the function …
Gradle Kotlin DSL – Build script fails when java.sourceCompatibility defined in Parent but build is successful when added to child module
Am trying to setup a new repository for a multi module springBoot application using gradle (Kotlin DSL for build scripts) As part of the same I am trying to declare generic configuration and dependencies needed for all subProjects. In doing so, I am trying to define sourceCompatility for all child projects in…
Getting image in POST request using Java and vert.x
I got the following question, I can’t get image which I’m sending from android app to server, I’m sending image from app using kotlin, and receiving it on server written with Java using vert.x. I send it with following code: on server side I’m handling it like But I can’t get any…
RSocket retrieveFlux() with Kotlin
I am trying to write a client for my server (both in Kotlin and using Spring Reactive Web). I encountered this problem while trying to use the RSocket. How can I get a Flux using RSocket? Answer You need to get reference of Class. You can use either Int::class.java or Int::class depending whether you need jav…
how to create a folder and file in internal storage using kotlin
I’m trying to create a file and folder on my internal storage in manifest i have these permissions. i got this i tried so many other thing from javatpoint to official java and kotlin tutorials. but none worked Answer ok got it,not specifying proper path. then to check this, navigate to Android -> dat…
How do I run Kotlin libraries ( distributed via JitPack ) in a Java file?
I have developed a library Text2Summary for Android which is written using Kotlin. I am distributing this library using JitPack and the building process goes perfectly fine. Now, in a Kotlin-enabled …