kotlin

Hey all I am trying to figure out why I am unable to interact with the background even though my app has a transparent background? The code below was modified from the official Google Android demos here. Here is the code I am using: class FabTransformationActivity : AppCompatActivity() {...

val cursor = contentResolver.query(Uri.parse("content://sms/inbox"), null, null, null, null) if (cursor != null) { //cursor.moveToFirst() cursor.moveToPosition(1) var text = cursor.getString(12) Toast.makeText(applicationContext,text,Toast.LENGTH_SHORT).show()...

I want to do Android Apps that uses socket queries to microcontrollers and these Android Apps are not very difficult, just short stream Socket requests and respoinses . But I am a new comer, so at the beginnign I am asking : Is this Andfrid Kotlin socket request in a Activity blocking UI thead...

I'm writing an application that have to get data from this site: https://api.spacex.land/graphql/. I'm using retrofit for the first time and I don't have idea how I have to set the API service to get, for example, the launchLatest from this site. This is my model: data class LaunchModel(...

Currently, I am working on Surface View in android. I am building a custom view that can render an incoming stream of data points on the canvas in a background thread. Hence, Surface View seems to be a good option to handle this specific use case. I have implemented the custom view and it...

I'm trying to learn how to develop a live wallpaper but i can't understand out how to convert some code parts from javascript to kotlil I can't understand how to convert this.draw = draw this.go = go Javascript package xxxxxx import android.graphics.Canvas import android.graphics.Color...

its pretty simple. i want some checkboxes and variable, and every checked checkbox increase the variable by 1. and the variable should display real-time on textView. pls Kotlin. (the image is the check boxes, and if 3 of them is checked, the 'text' textView should show the number 3). Thank you!

Hi all, I'm very new to Android development, a total beginner. I've done a bunch of Googling but haven't found an answer to this question: (Maybe this has been asked before, I couldn't find it) Is it possible to specify a specific color in an ImageView drawable and not have that color drawn...

Before Android 11, I've adjusted my app to fullscreen easily My old phone had the camera hole and base buttons outside the screen area, my new phone has a camera hole and the base buttons inside a screen. With few settings, my app was fullscreen in the old phone. Styles.xml <style...

I'm building my first quiz app in android studio with Kotlin. I have the .xml file ready for the registration and login page, what are the best options to store login data? I want to make a commercial app. Because its my first app I search for a free (or low cost) solution. I have experience...

I am working on an app, and I need to pass a buffer of audio data from kotlin to a C function. The prototype of the C function is : DECL(void, fftBuildAudioData, const jshort* const recordedAudio) (DECL is a macro to declare the good prototype and name function to match JNI specifictions) I...

Hey all. I am new to android development. I discovered compose and kotlin working with react and figured I would learn and get good at something new. I am trying to figure out how to use bluetooth. I followed the developer guides and have done a bunch of looking around but can't seem to solve...

Good day. I'm new to android development and I'm trying to develop a simple webview application, picked a nice template and went through the steps and made good progress, I managed to load my site fully and enable javascript, that works as intended, however I'm not able to make the app download...

There are two modules: app (main/application module which contains both Java and Kotlin classes) lib-wrapper (Android-library module which contains Java classes) lib-wrapper is published on the Amazon S3 bucket and used as a library dependency in app module. Proguard rules are applied for the...

Im wanting to make an Android Application in Kotlin using Information Extraction, what it is supposed to do is, it's supposed to extract text from a picture lets say a menu of a restaurant and once scanned, it's supposed to read it out aloud. Can anyone tell me where I can find a video or a...

I am using a TabLayout that displays 3 Tabs. When the app is launched First Tab makes Webservice API call,I am not able to move to second tab until first tab First screen finishes Webservice call execution. Is there a way I can stop my First Tab execution when clicked on 2ndTab . My Code for...

This is my first time working with Kotlin or Android. I looking to get a very basic Hello World type thing started as a proof of concept of a future app, but need a little basic guidance. I would like to be able to back up my SMS and my MMS messages. I have found that most applications focus on...

I am trying to access the googleFit API. It seems pretty straightforward. Get the google sign-in permissions and required authorizations then query for Step count. My code doesn't seem to work. and it logs only "Error!!" that's it. Android gurus, Where am I going wrong?? fun...

Hi Guys, at first i have to say that i'm a Beginner at Android and Kotlin. I'm working on a lets say learn App for children. The kids can learn several Parts with Videos. My employer wants that the Videos are all offline. So i decided to programm a InstallTimeDelivery, so after the App got...

I am finishing with the example Android application Real Estates on Mars. It was running well until 4) Task: Display a grid of images with RycyclerView step 9. In MarsPropertyViewHolder, create a bind() method that takes a MarsProperty object as an argument and sets binding.property to that...

i'm integrating in-app purchase billing library in my app. Does in-app purchases work only on published apps?. My app is in pending publishing state. In coding part skuDetailsResponse always returing empty array. Billing client connection response code is 0. If it works only for published apps...

I want to make a music app, very simple, using ExoPlayer. It will have a bottom nav with "songs" as the landing page, a recycler view of all songs in the library, with a player at the bottom of the view. Other areas of the app will be "albums", "artists" and "playlists". These again will be...