Navigation to local HTML Android Studio The idea is to make the link (in this photo) navigate to a local HTML: So when you click on Privacy Policy, it opens the local HTML. This message is stored in an strings.xml code like this: Check our Privacy Policy (./hosp_eula.html) And in the layout i reference to it like this: But it doesn't work due to the fact that i don't know how to make reference to the HTML file...

Android Kotlin Fragments: ''Attempt to invoke virtual method on a null object reference'' My code in MainActivity: val buttonbckbrowse = findViewById(R.id.buttonbck) buttonbckbrowse.setOnClickListener { val webView = findViewById(R.id.webViewBrowse) webView.goBack() Toast.makeText(baseContext, "Back", Toast.LENGTH_SHORT).show() } buttonbck is in a different fragment. When trying to run my app I get ''Exception: Attempt to invoke virtual method 'void android.widget.Button.setOnClickListener(android.view.View$OnClickListener)' on a null object...

How can i navigate to different fragments from my MainActivity action bar menu icon? I want to have control over the menu item navigation to different fragments from the main activity. Here's the main activity class MainActivity : AppCompatActivity() { override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) val binding = DataBindingUtil.setContentView(this, R.layout.activity_main) Timber.plant(Timber.DebugTree()) val navController = this.findNavController(R.id.myNavHostFragment)...

Android Studio adds closing curly brace although a closing brace is already present Since today I experience a really annoying behaviour in Android Studio. It happened after a restart to clear the cache. I have the following situation: After pressing enter the following happens: Instead of just adding a new line Android Studio adds two new lines and a closing curly brace. This happens for all scenarios where the pointer is...

How to set text in recyclerviev to the center with animation? I have recyclerview with expandable element. When it expands I would like to have the text in the center horizontally, I tried setGravity, but it is in ConstraintLayout and maybe because of it it doesn't work. Additionally, is it possible to add during this process any fancy animation?

Jetpack Compose runtime does not recompose on pointer input, possibly due to threading (Huge code warning) I'm working on a Jetpack Compose integration library. The application side provides render functions and input handlers, which in place are all running on the main thread and shouldn't be blocked. As for integration, I first set up a UI context as follows: object UIContext { private var scheduledStop: Boolean = false private var hasFrameWaiters: Boolean = false private val clock: BroadcastFrameClock = BroadcastFrameClock { hasFrameWaiters = true } private val...

How to save Webview state when switching between different fragments using Tablayout? I am making a very simple webview app that places different subpages of a website under different tabs (using tablayout), i.e. messages, orders etc. The individual webviews are created using fragments. The idea is that the user can quickly switch back and forth between pages. While testing, when I switch to the tab directly next to the one I'm on and then back, the page is exactly how it was when I left the tab. However, I switch to a tab that is further than one tab away from the one I'm...

How to verify a top level function was called with Mockk? How to verify that a top level (static) function was called in a test with MockK? Simple approach like: verify { someTopLevelFunction("some text") } results in io.mockk.MockKException: can't find stub kotlin.Unit.

How to reduce the use of viewBinding, to call (text,edit)views From layout I want to decrease the use of binding in my code fun setVisibility() { binding.tvFact.visibility = View.VISIBLE binding.tvTimeStamp.visibility = View.VISIBLE binding.progressBar.visibility = View.GONE }

Converting some code snippet from groovy to kotlin KTS in my build.gradle.kts file I have the following code in my build.gradle.kts. I have now migrated to kotlin KTS. And need help on translating this code from groovy to kotlin script. fun getVersionFromGit(fallback: String): String { return try { if (Os.isFamily(Os.FAMILY_WINDOWS)) { "git describe --tags --abbrev=0 --match "v*.*.*"".execute().text.substring(1).trim() } else { ["sh , "-c"", "git describe --tags --abbrev=0 --match "v*.*.*""].execute().text.substring(1).trim()...

Kotlin Arrays add element via With/let I have these code segments. I want to find the optimal solution and if it's possible some explanation why my 1st piece of code is broken. I have struggled with adding elements to the existing Array, without minimal external stuff. I tried with +=' '.plus(), and.plusElement(), and the only solution I found to work is by coping the current array to MutableList and then adding an element to it. After that, I convert it again to Array and return the right type Array. I am sure that there is a...

how to get the name of subcollection in cloud firestore I have database (Like the image below) and I Need to get the name of subcollection which contain Quiz Name

How to Make Sense of Dagger Hilt Build Output - Migrating from Dagger 2 to Hilt I'm migrating our app from Dagger 2 to Hilt (I'm pretty new to all of this). I may have bitten off more than I can chew. I have been troubleshooting this for a few days now and I'm not exactly sure how to read the build output. Can someone help makes sense of what these error messages mean? Is there a resource for decoding these errors?

Task :companyname:kaptDebugKotlin...

Coil Kotlin Uri to Bitmap throws null pointer exception Trying to convert a Uri image file to Bitmap in Kotlin fails with a Null Pointer exception. How can I fix this? var bitmap = remember { mutableStateOf(null)} LaunchedEffect(key1 = "tobitmap") { CoroutineScope(Dispatchers.IO).launch { bitmap.value = uriToBitmap( context, shoppingListScreenViewModel.state.value.imageUri ) } } Image( bitmap = bitmap.value?.asImageBitmap()!!, //Throws exception here contentDescription = "" ) private...

How to provide activity or application context in Hilt to ViewModel? Hello I have a button in recyclerview, I would like to show dialog when in one element of recyclerview the button is clicked. I have done: in Adapter: class SetGoalsAdapter( private val onItemDeleteClicked: (Int) -> Unit, private val onItemRootClicked: (Int) -> Unit, private val onButtonClickedListener: (Int) -> Unit) [...more code...] btnQuestion.setOnClickListener() { onButtonClickedListener(item.id) } in VM: @HiltViewModel...

how can i blur song cover in background of the player activity? I have this player screen in my app, and I want to put the album cover of the song on the background of the screen with a blurred effect, how can i do that? Images:

how to get a variable in an activity from another activity and make the main activity to use variable after initializing from there ?(kotlin ) my kotlin project has 2 activitis (main , second called : AddPlayer) main activity has a button called "Add a player" that it starts second activity . in second activity i have 2 edit text to get a number and a text from user . after press submit button in second activity , in the main activity i want add these values to my mutablelist but idk how to do it ( i think it crashed because main activity uses those variables before getting values from user) plz guide me . my activity code : class...

How to call inner function inside composable? I have a suspend inner function inside a composable but it throws a compile time error stating that the method name cannot be resolved. Why is it not working?

Jetpack Compose Playground is there any online playground for jetpack compose? where I can test and learn jetpack compose. Like https://play.kotlinlang.org Android studio is not lite. It takes time for setting up projects. Every little practice takes lots of time. If there is an online playground, it will be very help full. Thanks.

What does "activity?." mean in Kotlin? I am trying to use a code snippet from the official android documentation (https://developer.android.com/training/printing/photos#kotlin) which is the doPhotoPrint() function in the code that I have attached, in order to learn how to use the PrintHelper class in Kotlin and Android Studio. See the attached image of the the code snippet: <a href=""...

Annotate one of the constructors for a class with non-nullable parameters in Kotlin I want to use MapStruct to create a mapper from Kotlin Code. The mapper should map to the class with non-nullable fields. data class TargetClass(val nonNullable: String, var canBeNullable: Int? = null) For that I would expect MapStruct use constructor: TargetClass targetClass = new TargetClass("someString"); targetClass.setCanBeNullable = 3; With MapStruct I believe I can do it by annotating one of the constructors with @Default annotation. I can annotate the whole with @JvmOverloads and...

Multimodule app finish previous Activity when navigate to another Activity I have a project with different modules. I got :ft_a and :ft_b and they don't know about each other. There is a case where I want to go from :ft_a to :ft_b that I am using the Navigation component, so I use the ActivityNavigator library. When I navigate from A (in :ft_a) to B (in :ft_b), I want to finish Activity A. For this, I tried to use the popBackStack() function like the...

Excluding New Dependencies in Gradle File I have an app that runs perfectly without new dependencies like this one: A newer version of androidx.navigation:navigation-fragment-ktx than 2.4.2 is available: 2.5.0 If I upgrade to v.2.5.0, my app has warnings about unrelated elements like for example references to menu objects. Should I wait and allow these Gradle warnings such as above notice until another upgrade comes along and try the new dependency then?

It only works once in expandable recyclerview using epoxy I'm making an expandable Nested RecyclerView using Epoxy. made it to some extent, but the problem is that when I press the expand button, it expands, but it doesn't come back. I'm not sure where I went wrong. What's wrong? ParentItem data class ParentItem( val workout: String="sex", val list: List, // Child Item val isExpandable : Boolean = false ) ParentEpoxyController class ParentEpoxyController : EpoxyController() { private lateinit var data : List override fun...

Equalizer stops 10 seconds after exiting the fragment I am a beginner in the world of programming, and now I am working on developing an audio player by adding an equalizer, but I encountered a problem, which is after 10 seconds of pressing the back button and exiting the fragment, the equalizer stops and does not work until after opening the page again. Also, when playing another audio, the equalizer stops and does not work until the fragment is opened again. I have tried to fix it but to no avail, Plz Help.. public class MainActivityEqualizer...

Interstitial ad not showing using .setOnClickListener Method Kotlin i am trying to show interstitial ad when user click Buttons on my Kotlin app but the ad never shows. this is my Fragment layout when button exist "item_frag_installed_app.xml" this is my AppInstalledAdapter.kt when .setOnClickListener method only exist. private var interstitialAd: MaxInterstitialAd? = null override fun updateView(dateItem: AppInfo) { super.updateView(dateItem) ImageLoader.Builder(mContext, AppedIconUrl(dateItem.packageName,...

Trying to make my alarm manager alarm clock, survive force closing the app How do I make my alarm manager alarms that are set, not get erased after clearing all my running apps from memory.

Uri to scaled Bitmap Kotlin code displays the image rotated on its side I have Kotlin code that scales down the Uri image to a Bitmap and back to a Uri. Although the code successfully scales the image, it displays it rotated onto its side. What could be wrong with the code? Composable LaunchedEffect(key1 = "tobitmaps") { uriResult.value = resizeImage( context, viewModel.state.value.imageUri ) } uriResult.value?.let { imageUri -> AsyncImage( imageUri, contentDescription = null, modifier =...

Migrate from Kotlin Syntetic to Kotlin ViewBinding in Android Studio [duplicate] How do I implement viewbinding on a kotlin class?, I'm having trouble implementing this in this code: package com.example.audio.manager.view import android.content.Context import com.example.audio.manager.model.MyAudio import com.example.audio.manager.R import kotlinx.android.synthetic.main.view_myaudio.view.* line to remove @Suppress("DEPRECATION") class MyAudioView : LinearLayout, View.OnClickListener, SeekBar.OnSeekBarChangeListener, MyAudioManagerListener { private fun init() {...