I made changes to my webView and data binding stopped working When I made changes to webView (in a different activity), data binding stopped inflating the layout (activity_main). I've tried everything possible but nothing worked yet. Logcat 2020-05-06 183446.253 8144-8144/com.albertjokelin.revise E/AndroidRuntime: FATAL EXCEPTION: main Process: com.albertjokelin.revise, PID: 8144 java.lang.RuntimeException: Unable to start activity ComponentInfo{com.albertjokelin.revise/com.albertjokelin.revise.MainActivity}: android.view.InflateException:...

Is there any way to execute a globally installed npm tool through exec (Java)? I installed sass globally through npm npm install -g sass on a Windows machine. I can call sass through a Kotlin project using exec. val command = "cmd /c sass --no-source-map \"$inputFile\" \"$outputFile\" " val process = Runtime.getRuntime().exec(command, null, outputCssDir.get().asFile) Is there any way I can write the command without needing cmd /c so that it works on both Windows and Linux, or do I need to check which OS I am running on and then manually adjust the command?

TextView string dissappears after updating I have the following TextView

how to create custom pin entry view in android [closed] How can I make this pin view exactly?

Design editor is unavailable until a successful build error in Android Studio When I start Android Studio, there is only message displaying: Error:- Gradle Daemon started in 19 s 772 ms CONFIGURE SUCCESSFUL in 4m 6s It shows Configure Successful but Build is continue processing Also shows this error:- 11:58 Gradle sync started 12:03 Gradle sync failed: While loading class kotlin.reflect.jvm.internal.impl.load.java.lazy.ContextKt: Invalid code attribute name index 964 in...

Unit test for NFC I have class that checks if NFC is enabled, not enabled, or not existing on mobile phone. class NFCChecker { companion object { fun readNFCstatus(context: Context): NFCstatus { val manager = context.getSystemService(Context.NFC_SERVICE) as NfcManager val adapter = manager.defaultAdapter when { adapter == null -> return NFCstatus.NOT_EXISTING adapter.isEnabled -> return NFCstatus.ENABLED...

I get a warning saying: is not an activity subclass or alias When I run the app, it says MapsActivity is not an Activity subclass or alias. That is my mainfest?

Create multiple fragments with dynamic layouts from json using kotlin I am working on a survey project that uses json to create the survey form in the android app. I am trying to use dynamically created fragments for each page and then inflate layout with dynamically added questions to each page but i am unable to achieve that. The hierarchy of the json starts with json array which can contains multiple questionnaire as json objects. Each json object contains a page list as json array for the questionnaire. Within there page list there is a question list. All...

how to move ar object as camera moves I am new to ar core My use case is I want to move the ar core object as camera moves in real time and I am having difficulty in achieving so. Also if possible do guide on how to use Pose and anchor. Like I know what anchor are and what there purpose is but how do I fullfil my usecase here I tried with this but it didn't work private var placed = false private lateinit var mFragment: ArFragment private var ringRenderable: ModelRenderable? = null override fun onCreate(savedInstanceState:...

zxing not detecting barcode. Possible width/height issue? I can't get my zxing QR scanner to detect QR codes. I've tested the following on the emulator and a Huawei P20. I have assumed my QR code is OK as I've installed the zxing barcode scanner app on my phone and it detects it fine. I have my camera previewer running fine and the callback is called fine. Just the detection seems not to detect anything. I've tried using the layout frame size and also the preview size, you can see what their values were in the code comments. I wonder if I'm...

okhttp3 request gives android.os.NetworkOnMainThreadException in Kotlin I am trying to call an API to get exchange rates. I followed a tutorial and ended up with the following code: Task: class GetNetworkTask { var client = OkHttpClient() @Throws(IOException::class) fun doGetRequest(url: String) { val request: Request = Request.Builder().url(url).build() client.newCall(request).enqueue(object : Callback { override fun onFailure(call: Call, e: IOException) { val ex = e.localizedMessage...

Calling Secondary Constructor in API response Model in Kotlin Android My JSON Resoponse looks like- { "body": { "count": 4, "sender": "margarete20181570" }, "inserted_at": "2020-05-07T054814.465Z", "type": 1 }, { "body": "savanna19562530 hit the SOS button!", "inserted_at": "2020-05-06T091736.658Z", "type": 2 } And I am using the Data Class like below to parse the above JSON, what is wrong here! class Notification(val body: String, val inserted_at: String, val type: Int) { constructor( msgBody:...

How to pass parameters to constructor using Kotlin delegation for gradle task I have an interface and class that implements it. interface DownloadSpec { var url: URL? var target: File? } class DownloadSpecImpl(override var url: URL?, override var target: File?) : DownloadSpec { constructor() : this(null, null) fun validateInput() { if (url == null) throw NoValidDownloadUrl() if (target == null) throw NoValidDownloadTarget() } } I used kotlin delegation for gradle task. open class DownloadTask : DefaultTask(), DownloadSpec by...

How to solve Sinch Invalid signature error in android I am trying to join conference call using sinch's callout rest api but getting response 40102 invalid signature when call using retrofit. My code is.. val instant: Instant = Instant.now() val mainObject = JsonObject() mainObject.addProperty("method", "conferenceCallout") val jsonConferenc = JsonObject() val jsonDestination = JsonObject() jsonDestination.addProperty("type", "username") jsonDestination.addProperty("endpoint",...

The behavior of check method in kotlin-mockito I stuck with com.nhaarman.mockitokotlin2.check method, mockito-kotlin version is 2.1.0 I write a test that checks that the method of my object is invoked with specific list so I write the test code: verify(a).processList(check { // list verification should be here print(it) }) But when I execute it, I see that print(it) was executed twice and for the whole list. Let's say processList was invoked with the list (1,2,3) as parameter, so the above test would print [1, 2, 3][1, 2, 3] I...

Why does firebase query fetch data only once I am making a project using firebase which retrieves the data using pagination. Now the project needs to filter out the data using Tabs. So I have different Tabs and I want that on click of each tab, the recyclerview must changed its list data. I get the data of the first tab, but when I click on another tab, there is no change. After debugging I found out that the query listener runs only once for the first tab. Here is my code for WorkFragment.kt: private fun setupRecyclerView() {...

How "light-weight" are Coroutines really for real-world Android development? When you start to learn about Kotlin Coroutines, one of the first examples you see is that it is possible to start hundreds of thousands of Coroutines, but run into OutOfMemory Exceptions when trying the same thing with Threads. While this example is "cool", I don't think it is useful and even a bit misleading for real-world Android application development. Sure, you can start hundreds of thousands of Coroutines that do nothing but delay(), but in reality, you either start coroutines that...

How to implement on click listener recycler view I saw A LOT tutorials and read a lot articles about this topic, but many of them causing memory leaks and other problems. I found something that look good and solid, But I've A little problem, the proccess goes like this: Define interface inside the adapter: interface OnArticleListener { fun onNoteClick(position: Int) } pass a reference to the view holder and implement onClick interface: class ArticleViewHolder private constructor(itemView: View, onNoteListener:...

Handling View in Coordinator Layout Handling View in Coordinator Layout I want to know the best or better practice about handling view (ex.Floating Action Button)in this situation. Problem At present, I implement common Toolbar in Activity for displaying in some Fragments. Then, I want to implement a FAB at a particular Fragment. But when I implemented a FAB in the Fragment, it moved the amount of height of ToolBar. I want to... I want it to fix at the bottom and left on the screen. How can I solve this problem? If you...

private modifier in Kotlin doesn't work as expected According docs: If you mark a declaration private, it will only be visible inside the file containing the declaration; However, when I have a private class constructor and try to invoke it from a function inside same class' declaration file, I get an error: employee.kt class Employee private constructor(val name: String) { //methods and stuff } fun createEmployee() : Employee...

Convert to Kotlin using "and" I am trying to transpose my JAVA code to Kotlin. Can you please transpose this String textEncoding = ((payload[0] & 128) == 0) ? "UTF-8" : "UTF-16"; // Get the Text Encoding int languageCodeLength = payload[0] & 0063; // Get the Language Code, e.g. "en" Thank you.

How to emit Flow value from different function? Kotlin Coroutines I have a flow : val myflow = kotlinx.coroutines.flow.flow{} and want to emit values with function: override suspend fun sendMessage(chat: Chat, message: Message) { myflow.emit(message) } But compiler does not allow me to do this, is there any workarounds to solve this problem?

kotlin object (local final class) not serializable For Some reason, I need to construct an object in kotlin like below and need to send to rabbitMQ using rabbitTemplate.convertAndSend. But when I do that, I get an error var myObject = object { var name = "Object Name" var description = "Object Description" } Error SimpleMessageConverter only supports String, byte[] and Serializable payloads What should I do to make myObject as Serializable?

How to get full text from the editText by using addTextChangedListener in kotlin I would like to add full text from the editText into an array. But while running this code the array values will be like first word , second word etc. How to get the full sentence and i want to add it into an array(Already did it using interface) Note : The code is placed on the recyclerview adapter , Where texBox is the EditText and examinationListener is the interface used Here i shared the code. Please check it. textBox.addTextChangedListener(object : TextWatcher {...

whats the use of fragemnt method onSaveInstance() with ViewModel since now states maintained in viewModel Now with the View model as we can handle the configuration changes and manage the UI data, So the onSaveInstance() I feel now if of no use for me. Like earlier we used to store smaller data onSaveInstanceState() and used to restore it during configuration, now using view model we can easily get the updated data. So could you please tell me whats the actual usage of onSaveInstanceState() and onRestoreInstancestate() now if we are using viewModel. Could you please tell me the usage of it in...

How to write the code that compute arithmetic operations by kotlin I'm a beginner to learn kotlin I want to know how to write the code that compute arithmetic operations by kotlin like ((((8))+6)*5)+2)*5-6*7/(584+((32)-33) please help me to solve this problem. thanks.

How to show the set of images stored in Google drive into android app How to show some 10 photos which are saved in Google drive, into android app(in android studio) I need to show them one by one or one at a time? N can I do that without authentication also?

How to Update the previous screen if using navigation component? I am new to the android architecture navigation component. So I have a screen that shows me a list of the channels I have recently subscribed to and a button that navigates me to another fragment where I could subscribe to other channels. Now I have the issue since the navigation graph is handling the back press of screens, so I wanted to pass the list of the newly subscribed channel, so that I can show an updated channel on the previous screen 'Recently Subscription' tab.

Kontlin adnroid make oval picture cross another pictore I use glide I can do oval imageView But I do not have idea how I can connect two imageViews

How to add folding cell in the right way? I'm trying to add folding_cell library(https://github.com/Ramotion/folding-cell-android) to my recyclerView, but I'm getting strange behavior. I'm listening to click inside my activity - override fun onListenClick(position: Int) { Log.i("click","$position clicked") folding_cell.setOnClickListener { folding_cell.toggle(false) } } The listener work fine, but when I add the...