Kotlin Room can't add new object to viewmodel repository due to required long when creating object from user input I have created entity class with auto generated id. @Entity(tableName = "todo_list") data class Todo( @PrimaryKey(autoGenerate = true) var itemId: Long = 0L, @ColumnInfo(name = "todo_title") val title: String, @ColumnInfo(name = "todo_description") val description: String) And viewmodel class class TodoViewModel(application: Application) : AndroidViewModel(application) { val readAllData: LiveData private val repository: TodoRepository init { val todoDao =...

What are the different ways to pass the data between two Fragments in Android? I am trying to know how many ways are there to pass the data between two fragments let's say from an Edit Text in one Fragment to a Text View in other Fragment. I know two ways: First one is using the intent. Second is using the arguments in navigation. Are there more ways to send data between two fragments and which one is more better and efficient and why ? If anybody has any knowledge about this please tell.

Iterate through cypher query result I have the following query: UNWIND ${"$"}userIds as userId MATCH (w:WebApp) (d:Documents) WITH u, { webName: w.name, webId: w.id, documents: COLLECT({docName: d.name, docId: d.id}) } as UserDocs WITH { userName:u.username, userId: u.id, apps: COLLECT(UserDocs) } AS UserList RETURN UserList Basically, I have one userID that can access multiple apps, and in every app can access multiple documents. I do this for multiple users, so I end up with a list of the UserList result....

How can I make my Composable Recompose with a For Loop Update? I understand that architecturally this is definitely not a good thing to do, but I have embedded a for loop in a composable to update state as follows: @Composable fun WorkScreen(name: String?) { var text by remember { mutableStateOf(0) } Box( contentAlignment = Alignment.Center, modifier = Modifier.fillMaxSize() ) { Text(text = "YOU PRESSED ME $text") } for (i in 1..100) { text = i } } My expectation is that when I switch...

How can I detect when I'm done creating directories recursively with Kotlin Coroutines? I'm trying to download an entire directory from Google Drive and store it locally on my Android device. My process for doing this involves downloading all the directory info first, and then crawling through the hierarchy recursively (starting at the root directory), creating the subdirectories as I go. The below recursive method accomplishes this correctly. The problem is this: I have no way of knowing when this method completes, since I don't know of any proper stop condition. I know that...

supportFragmentManager.beginTransaction().hide() /show() Just does not work Hello I am trying to save the states of the fragments, in a navigation bar, but when I try to navigate between the fragments, nothing happend... I've read a ton of tutorials and can't really understand. What I can't understand what I missing, I instantiate the fragments val frag_signin:Fragment= SignInFragment() val frag_news:Fragment= Fragmento() var selected=frag_news later added the navigation bar val barraNav:BottomNavigationView = findViewById(R.id.bottom_navigation)...

How to communicate with a python Twisted server from Java successfully? These questions may sound silly, but I am new to this networking thing. I have been trying for quite a few days now to implement a client that works with a Twisted server, but I am failing to get any response back from the server. I have read a lot of docs and watched a few tutorials and I got some of the stuff fixed and got some of the concepts better understood. Before I step on to asking any questions, I wanna show you my code first. This is what I use to talk to the Twisted-based server:...

How to decode a base64 PDF string to HTML content to show in the WebView Android using Kotlin? I have searched the question in google but there weren't any proper answer to my question. I receive a base64 PDF string from the web service so I want to decode it to HTML content and show the content in the WebView Android using Kotlin. The base64 PDF string which I receive looks like this:...

Serving a React application with an embedded NanoHTTPD server in Android with Kotlin I want to embed my React application made with create-react-app into an Android app which will serve the static files using NanoHTTPD. Here I have created a Server class which will act, well, as the server: class Server(val resources: Resources): NanoHTTPD(8000) { override fun serve(session: IHTTPSession?): Response { return super.serve(session) } } Notice that I have a resources argument. I have...

Refactoring Compose Navigation into single object/Class I have my navigation Graph and controller in util package, and have every composable in a separate file. I don't want to hoist the action because that will make the navigation controller very messy. I want to refactor all the navigation commands into a single location. all the ways that worked for me were messy... if there is a clean way please show me. here is my NavGraph class NavGraph(navController: NavController) { val fakeCaller: () -> Unit ={ navController.navigate(home)...

Java Regex for extracting a proper url from a "/ \ / \" Context: GoogleBooks API returing unexpected thumbnail url Ok so i found the reason for the problem i had in that question what i found was the returned url from the googlebooks api was something like this:...

Fragment Transaction Issue in Android I have a Fragment A in My app. From the Fragment A, I am moving to Fragment B. Note that I am adding the Fragment B on Fragment A (not replacing the Fragment.) Now, When I coming back to Fragment A from Fragment B, I have to call a method of Fragment A and that's Why I am calling that method in life cycle method of Fragment A : in onResume(), onViewCreated() But What I noticed by putting log in both the method that these methods are not calling means I am not getting Log in logcat and the...

How to call OnResquestPermissionResult from Adapter I want to make a phone call using the number displayed on the view in the recycler view. override fun onBindViewHolder(holder: MyViewholder, position: Int) { val currentItem = userlist[position] holder.txtFirstName.text = currentItem.firstName holder.txtLastName.text = currentItem.lastName holder.txtAge.text = currentItem.phonenumber.toString() num = currentItem.phonenumber.toString() holder.call.setOnClickListener { val number: String =...

Callback in BottomSheetDialogFragment doesn't work in ParentFragment I'm a java developer and I recently decided to write in Kotlin but I'm encountering some issues. I have a BottomSheetDialog and a callback interface in it but when I initialize the listener in the parent Fragment nothing happens. Here is my code: BottomSheetDialogFragment.kt class AppThemeBottomSheetDialog: BottomSheetDialogFragment() { companion object { const val TAG = "AppThemeBottomSheetDial" } lateinit var binding: DialogAppThemeBottomSheetBinding interface...

Hopefully a simple Kotlin regarding looping through a recycler I have a recycler in my activity for acrostic poetry. The recycler displays an image of the letters of the word (Stone Age, in this case) and an EditText to enter the acrostic words. What I want to do is read the words that have been entered, so for "Stone Age" I'm creating 8 items in the recycler. In order to get the words, I have tried to replicate the steps in this question <a href="https://stackoverflow.com/questions/32811156/how-to-iterate-over-recyclerview-items">How to iterate over...

I Uploaded App to Google Play Console My app was Rejected "Issue with your app" Your app’s store listing appears to contain words, phrases, images, or videos you may not have permission to use. Please refer to the “Issue details” below for further information on where we’ve identified this issue in your app’s store listing. Issue details We found an issue in the following area(s): Title Hi-res icon Short description Full description App screenshot Promo video App Title: Your app title appears to contain words or phrases you may not have permission to use. Hi-Res Icon:...

Android videoView of Tiktok, Instagram Reels, Youtube shorts I want to make Short Form Application like Tiktok, Instagram Reels, Youtube Shorts. I use videoView provided by Android Studio Widgets, but sometimes it takes time because of buffering. Anyone knows more efficient video player or video view of android, please suggest me.

iOS KMP Command PhaseScriptExecution failed with a nonzero exit code I have a Kotlin multiplatform project, I can build Android app, but I cannot build iOS app. The full error message below. Please help me on this, thank you so much.

Android Studio (Kotlin) send TCP Socket Hey guys I use an Arduino WiFi module (ESP8266-01) which acts as the TCP server. Now I want to build an android app which continuously sends data to the ESP. It will be like an Remote Control. How do I implement this and how can I send the data? I'm very new to TCP so I would be thankful if somebody could help me.

How can I assign a null lambda (String) -&gt; Unit to a variable directly? I'm studying Code A. I hope to directly assisn a null lambda expression to onValueChange for test. But Code B, Code C and Code D are all wrong, how can I assign a null lambda (String) -> Unit to the variable onValueChange ? Code A @Composable fun HelloContent(name2: String, onNameChange: (String) -> Unit) { Column(modifier = Modifier.padding(16.dp)) { ... OutlinedTextField( ... onValueChange = onNameChange ) } } Code B...

RecyclerView Filter is not filtering (Kotlin) I started the debugger and my breakpoints show that on the first startup the dataset is being transmitted as the adapter is being initialized, but as soon as I call the filter it doesn't have any data to work with and my recyclerview just stays as it was before. All this code worked before, I just translated it from Java to Kotlin. I must have messed something up, but I can't find it. Adapter Class class ClothingListAdapterKt( private val dataSetIn: MutableList, private val listener:...

Why am I getting Backend Internal error: "Exception during IR lowering error" when using Jetpack Compose clickable-Modifier? I am creating a custom Checkbox within a Surface which has a Modifier.clickable: Surface( modifier = Modifier .clickable( enabled = enabled, interactionSource = interactionSource, indication = rememberRipple(), role = Role.Checkbox, onClick = { onCheckedChange(!checked) } ) .then(modifier), ) { Row { Checkbox(checked = checked, onCheckedChange...

React useStyle for Jetpack Compose Material-UI offers a nice way to style its components for React. where you define the style in a different place then the component. For everybody who has never heard of this this looks like this const useStyles = makeStyles({ root: { background: 'linear-gradient(45deg, #FE6B8B 30%, #FF8E53 90%)', border: 0, borderRadius: 3, boxShadow: '0 3px 5px 2px rgba(255, 105, 135, .3)', color: 'white', height: 48, padding: '0 30px', }, }); export default function Hook()...

The application may be doing too much work on its main thread room flow when I run application on emulator it works fine but It open and close immediately on my phone and get this W/Looper: Slow Looper main: Long Msg: seq=7 plan=133552.606 late=267ms wall=1940ms running=0ms h=android.view.Choreographer$FrameHandler c=android.view.Choreographer$FrameDisplayEventReceiver I/Choreographer: Skipped 220 frames! The application may be doing too much work on its main thread. W/Looper: Slow Looper main: doFrame is 1834ms late because of 4 msg, msg 1 took 1940ms (seq=7...

Kotlin: Is it possible to move from Fragment of Activity-1 to Activity-2 I'm beginner in Android development. I'm creating an application in Kotlin and met some problem. I wanted to show another activity and get the selected data from it to the fragment but I could not find how to do that... Language: Kotlin Problem: Is it possible to do as shown on picture A? If yes, may I get some advice of how to show Activity2 from Fragment1 of MainActivity and get the items to the fragment1 when clicking "Select" button of Activity2? Want to show Activity2 from...

Kotlin idiomatic interface method cache WITHOUT spring's cache? Is there any way to intercept method from interface and cache result “WITHOUT” spring’s method cache ? Take a simple calculator for example : interface ICalculate { fun multiply(a: Int, b: Int): Int } It just multiplies a and b , and return the result . Suppose it is a heavy computation work . And there are two implementations : class CalculatorDumb : ICalculate { override fun multiply(a: Int, b: Int): Int { var sum = 0 (1..a).forEach { (1..b).forEach { sum++...

how we open the Activity when app is in background in android I am working on the video calling functionality. if first person call the other person then incoming Activity is not open in android 10,Android 11 . i am using overlay permission , but firstly open all applications list. But I want to open directly particular Application permission.

How to include github repository in gradle project I'm trying to make a library using gradle and including this library in another project using gradle with a github link. I'm trying this in settings.gradle: sourceControl { gitRepository(URI.create("https://github.com/fonnes/JsonKay.git")) { producesModule("fonnes.JsonKay:JsonKay") } } and this in build.gradle: implementation('fonnes.JsonKayJsonKay1.0') { version { branch = 'master' } } When trying to build gradle I'm getting: Could not find any version...

I get an error when starting the fragment My error: java.lang.NullPointerException: Attempt to invoke virtual method 'void android.widget.TextView.setText(java.lang.CharSequence)' on a null object reference error in idUser.text = "User Id :: $userId" My fragment class ProfileFragment : Fragment() { override fun onCreateView( inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?, ): View? { val root = inflater.inflate(R.layout.fragment_chart, container, false)...

Android Recyclerview is empty or not I am trying to check the recyclerview is empty or not but unable to get it.I have try many method using bookadapter.itemcount==0,booklist.isempty() but it didn't work .How can I solve my problem please tell how to do it.Is there any need to change in adapter file if needed then please tell I can do it. Events.kt class Events : AppCompatActivity() { lateinit var eventfloatingbutton: FloatingActionButton lateinit var databaseReference: DatabaseReference lateinit var auth: FirebaseAuth lateinit...