Category "kotlin"

Pdf file is not able to load in android webview but able to load in external browser

I have the webpage created with angular js file. There are pdf files inside the webpage we want to download and show. when clicking the pdf file, it just show l

Launching Fragment with Espresso displays layout with black overlay and grey actionbar

I wrote a simple espresso test in which I launch a fragment with the following code: package com.example.fragmentedittexttest2 import android.util.Log import a

App crashes using the new Android 12 Splash Screen API

I'm trying to use the new Android 12 Splash Screen API but my app keeps crashing when opening the first activity. I have MainActivity as my launcher activity wi

How to detect what the content on the display is?

I have an app that rotates other apps. It uses an accessibility service so I have the ability to retrieve screen content. Say I'm rotating a game called Geometr

How to safely (lifecycle aware) .collectAsState() a StateFlow?

I'm trying to follow the official guidelines to migrate from LiveData to Flow/StateFlow with Compose, as per these articles: A safer way to collect flows from A

in kotlin app, message listview not displaying emoji view

i have got emoji view in logcat of android studio. but not getting that emoji view in app. i have set emoji textview in layout but its not visible in listview.

Parallel processing values emitted by flow in Kotlin

Kotlin code runBlocking { flow { for (i in 0..4) { println("Emit $i") emit(i) }} .onEach { if (it%2 == 0) delay(20

How to save fragment state while navigating with navigation component

I'm trying to create a single activity app using android architecture components. I have a fragment A which has some textfields, when user pushes a button I nav

I am using a scroll view that hides my toolbar while scrolling, I don't want my toolbar to hide while scrolling

I am making a register screen, that has a toolbar on top of it. When I scroll down the toolbar hides(goes up). I don't want my toolbar to scroll when I am scrol

Filtering array list

I have a class which I want to use, to filter my array according to driver. Driver is hardcoded just to try and eliminate possibilities of why the code is not w

What does "intrinsic" implementation mean in Kotlin?

When browsing through Kotlin source code, I found that in some places NotImplementedError is thrown: public suspend inline val coroutineContext: CoroutineContex

Completable.create of RXJava equivalent in Kotlin Coroutines- Android

I am working on Firebase authentication wherein I need to put the firebase auth on my Repository. I found this article on how to do it but it uses RxJava. (http

Android Kotlin: onTextChanged not being triggered for EditText

I am creating an EditText box with line numbers on the side. To achieve this, I have code in the onTextChanged method of the addTextChangedListener that updates

Polymorphic deserialization of nested list object in Kotlin

Trying to deserialize a pretty complex json string, I've done simpler ones but am struggling with how to set this up. I've also found some examples on simple po

Gradle Building Error while outputting the program

I am facing an issue when I am Using Gradle to output my Android APP in Android Studio, I am getting such error, the error was there in sync, then I tried to sy

How to load Fonts in Jetpack Compose Desktop?

In Jetpack Compose for android you can do this: val fontFamily = FontFamily( Font( resId = R.font.my_font_400_regular, weight = FontWeight.

How to programmatically uncheck a checkbox in Kotlin

I've got two checkboxes and I need to uncheck the other checkbox if the first checkbox was clicked. Right now if a user clicks on the second checkbox and then o

How to make "inappropriate blocking method call" appropriate?

I am currently trying to leverage kotlin coroutines more. But I face a problem: when using moshi or okhttp inside these coroutines I get a warning: "inappropri

GroupBy operator for Kotlin Flow

I am trying to switch from RxJava to Kotlin Flow. Flow is really impressive. But Is there any operator similar to RxJava's "GroupBy" in kotlin Flow right now?

converting one function into multiple - Kotlin

how would I go about taking this one function and turning it into multiple functions? I need to create a local double variable called change and set it to a tes