How do i apply a default font to all Text() elements in the app using Jetpack Compose? I need to apply a common font to all the Text() used in my entire app. Currently i am applying it manually to each text using a style or font as follows. How can i specify this as a global theme for the app? In normal xml layouts, i was using a custom TextView widget to achieve this. Text( text = stringResource(id = R.string.userName), style = typography.h2, fontSize = 20.sp, )

Convert Live Data to kotlin flow in jetpack compose Hey I am new in jetpack compose. I am checking in internet is available or not and consume through live data. Now I started learning jetpack compose so I want to use Flow, So any guys help me to convert this LiveData to flow and use in jetpack compose. NetworkConnection.kt import android.app.Application import android.content.Context import android.net.ConnectivityManager import android.net.Network import android.net.NetworkRequest import androidx.lifecycle.LiveData class...

How can I connect to a network service on hosting OS from Multiplatform commonTest I am testing out KMM, and having a KMM library connecting to a grpc service on hosting machine. I then have a simple test in commonTest, trying to make the connection to the service. I then run the test from AS, choosing Android as the target. However, I simply cannot make it work: If I use localhost as the destination host, I get a connection rejection error. Then I thought maybe this is running from Android emulator, so I use 10.0.2.2. This gives me Operation timed out error. So, what is...

Failed to resolve: com.github.unsplash:unsplash-photopicker-android:1.0.1 I was trying to make a new project starting with dependencies when I got this: 1: Task failed with an exception. ----------- * What went wrong: Execution failed for task ':app:checkDebugAarMetadata'.

Could not resolve all files for configuration ':app:debugRuntimeClasspath'.

> Could not find com.github.unsplash:unsplash-photopicker-android:1.0.1. Searched in the following locations: -...

How to get transparent while erasing the canvas in Jetpack Compose , now I'm getting white color? Canvas( modifier = modifier .background(Color.Transparent) ) { with(drawContext.canvas.nativeCanvas) { val checkPoint = saveLayer(null, null) drawImage( image = bitmap, srcSize = IntSize(bitmap.width, bitmap.height), dstSize = IntSize(canvasWidth, canvasHeight) ) drawPath( path = erasePath, style = Stroke( width = 30f,...

JetpackCompose how to createChooser and listen for result I want to show a system dialog to user to select from available applications for sharing text from my app. I can do this by using createChooser function from Intent class. But i also want to listen for the system dialog result, so that i can disable/enable my share button to prevent creating multiple system dialogs overlapping each other. To do this i need to know whenever the dialog is dismissed or an app option is selected by the user. So i need the result of the chooser Dialog i have...

Global jackson configuration does not work (Kotlin, Spring-Boot) i am not able to get ISO formatted dates. Setup: Kotlin 1.7.10 Spring Boot 2.7.1 Jackson 2.13.3 with following jackson dependencies: jackson-module-kotlin jackson-databind Application properties spring: jackson: date-format: "yyyy-MM-dd'T'HH🇲🇲ss.SSS'Z'" default-property-inclusion: non_null serialization: write-dates-as-timestamps: false INDENT_OUTPUT: true deserialization: FAIL_ON_UNKNOWN_PROPERTIES: false...

How to show only avg and max values in labels on Y axis using MPAndroidChart? I have graph which show speed value on Y axis. I want to show exactly 2 values: avg value (i. e. middle value label) and max value. I'm using YAxis.setLabelCount(2) to set only two labels on Axis. But graph always showing me min value and another one or two values. The behavior that i want: If we have max speed 2.4 miles (or km) - show label with max speed. Also show half from this speed label (1.2)

Kotlin: I have a problem while switching from one Activity to another? I have a problem when I want to switch between two activities. This is my code on the first activity. I want to switch to the CatDoorActivity. modifier = Modifier.clickable { val intent = Intent(this, CatDoorActivity::class.java) intent.putExtra("UUID", deviceUUID).putExtra("TITLE", deviceTitle) this.startActivity(intent) } My Problem is this exception after running that code: android.content.ActivityNotFoundException: Unable to find explicit...

How to parse a epub file in the android I'm trying to get the contents of a epub file and output the content through text-to-speech in an android application. I'm unable to find any helpful resource or library for the same. Any suggestion or resources for the same would help. Thanks in advance.

Android - Open app when device F10 key press We built a USB device (Type-C) that connects to Android phone using charging input and pressing the F10 key on the phone. What I am looking for is to listen for a USB device and F10 key. When these detect our app must launch. (I think I can listen for USB using Broadcast receivers) Note: This must work in the background even when the phone is locked. My question is how can I listen for the F10 key when a USB device connects to the phone? Be aware that I want to open our app when the above...

Kotlin Flow collector gets the initial value only then stops one question in Flow... why am I getting the initial value only? despite that I emit a new value in the ViewModel, and the value in the MutableStateFlow changes. but the collector doesn't get any... I change the value from the MainActivity using a menu action: R.id.settings -> viewModel.updateMoveToSettings(true) and in the viewmodel I emit it this way private val _moveToSettings = MutableStateFlow(false) val moveToSettings get()= _moveToSettings fun updateMoveToSettings(value: Boolean)...

SimpleDateFormat Unparseable date only on phone I need to parse a string from my database which has "Mon Jul 18 12:58:05 2022" string as value. Weirdly it only works with emulator. But, if i try to uses my app in my phone it throws Unparseable date error. My phone is using android 9 which use sdk 28, so i think it should be fine. I alread tried to remove the timezone which in many cases could cause the problem. But, after i remove it and the error still happen. It took me sometime to figure this out, but in the end i still got no answer. I...

Where to set Visibility to False in Jetpack Compose? Relaunching Animation everytime Composable comes into view? I would like to relaunch an animation everytime it comes into view, meaning if I scroll down a little with composable out of view, then scroll back up, the animation should relaunch. All the examples I've been seeing people have been setting the visibility to false with a button, however, I do NOT have a button. I would like it to be set whenever the composable is OUT of view. This is what I have so far: @Composable BarComponent{ var visible by remember { mutableStateOf(false) }...

HackerRank Project Euler #1 Kotlin I'currently training Kotlin using Project Euler based programming challenges on HackeRank. Today I have been working on the first challenge: My first solution was: import java.util.Scanner fun main() { val sc = Scanner(System.

in

) val numberOfInputs = sc.nextInt() val inputs = IntArray(numberOfInputs) for (index in 0 until numberOfInputs) { inputs[index] = sc.nextInt() } for...

KotlinJS with React-Router-Dom, How to use the location state? I have a kotlin multiplatform project that has a jvm server and a KotlinJS client that uses kotlin-wrappers such us kotlin-react and react-router-dom. I recently updated the wrappers version and they changed the way that the NavigateOptions' state works. Before, i had something like this: navigate(to="/", options = object : NavigateOptions { override var replace: Boolean? = null, override var state:...

Should I use separated Repositories, ViewModels, and Models for Retrofit, and Room database? Should I use separated Model, Repository, and ViewModel for the Retrofit, and Room, while using MVVM?

[Kotlin][Firestore]Turn a list of data objects into a hash map, send it to firestore, retrieve the data and turn it back into a list of objects again Bloody beginner in Kotlin/Android here and trying his best. Problem: I am trying to push a list of data objects into firebase and managed to pull that off with the following function: fun createData(collectionName:String){ //Create Data here val docData: MutableMap = HashMap() docData["data"] = Arrays.asList( JournalEntry("Title 1", 0, 0), JournalEntry("Title 2", 0, 1), JournalEntry("Title 3", 0, 0) ) db.collection(collectionName)...

Conditional navigation start destination in jetpack compose I am using navigation-compose along with bottom bar in jetpack compose. I want to show different bottom bar for different type of user. For that, I need to set conditional startDestination in NavHost. How do i do that? I've tried below but it's not setting startDestination val user by remember { mutableStateOf(viewModel.user) }.collectAsState() var startDestination = Screens.UserType1.route LaunchedEffect(user) { startDestination = if (loggedInUser?.userType == UserType.Seller)...

Why does this web service code not output? I am a beginner Android developer, I wrote this code related to web service, but this program has no output (I am not getting any error). And I'm sure that the API is correct, but it doesn't show anything in the text view.And when the app is running on the device, the internet is on. mainActiviy: class MainActivity : AppCompatActivity() { lateinit var binding : ActivityMainBinding override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) binding =...

Two results lists merged from room and API I would like to add two results from API into one, but in this case I use local DAO with Room and remoteApi. I have two methods. localRepo.getFirst(elementId) remoteRepo.getSecond(query) usage in viewmodel private val _myLiveData = MediatorLiveData() [...] viewModelScope.launch { _myLiveData.postValueFromApiResponse { localRepo.getFirst(myId) -> LiveData remoteRepo.getSecond"myQuery") -> ApiResponse extensionOfLiveData suspend fun...

Large file parsing speedup The file has 4 million lines. I get each line from the file using BufferedReader. Next, the resulting string is parsed using JSONObject and inserted into the database using room How to get the maximum speed of this process? So i get the string val coroutineScope = CoroutineScope(Dispatchers.IO) coroutineScope.launch { val inputStream: FileInputStream val reader: BufferedReader if (file.exists()) { val...

It there a way to monitor Android system api calls? I want to monitor several system functions like displayMetrics.heightPixel, Build.DISPLAY or access to the Accelerometer/Gyroscope for arbitrary Apps running on the system. The goal is to log those function calls into a file. Is there a way to monitor it, without reimplementing Android? Do any of you know a good approach for that ?

Kotlin multiplatform test error ("Error_0: Fail to fetch") I have a kotlin-multiplatform project that has a kotlinJS client and a JVM backend. I'm creating some integration tests that are supposed to test the API calls from the client. The function is a suspend function with an HttpClient call with a POST method. I'm using kotlinx-coroutines-test, the test looks like this: @OptIn(ExperimentalCoroutinesApi::class) @Test fun testGetSingleResult() = runTest { val result = getSingleResult(TESTED_ID) assertThat(result.ID).isEqualTo(TESTED_ID) } It...

Delete files in Android 11 I am trying to delete files (photos, videos, audio) with the consent of the user. But when I try to bring up a window for the user agreement, I get an error. For some reason my Uri variable doesn't fit My code: if (Build.VERSION.SDK_INT >= 30) { val collection: ArrayList = ArrayList() for (i in 0 until Params.dataListPath.size) { collection.add(Params.dataListPath[i].file.path.toUri()) Log.d(TAG, "onShowDialogConfirmDelete: " +...

Can't cast 'application] as Application class to the ViewModelFactory I'm trying to follow the android codelabs for room. I've faced some issue - I can't cast application while initializing ViewModel in Fragment, why is that? I've copy pasted this code to the MainActivity, and somehow the 'application' were casted (it wasn't red). I've added th Application class to the manifest. Initializing variable in fragment private val mViewModel: MyViewModel viewModels{ MyViewModelFactory((application as MyApplication).repository) Application class MyApplication:...

How to use schedule? I've seen quite a few examples of 'schedule' being used like this: Timer().schedule(1000) { // code to execute after delay } However, when I try to use it like this the function needs me to supply some sort of 'TimerTask' and I haven't seen anything about that. So my question is how do you properly use schedule?

Why wont my action bar text align to the center i'm trying to center my a action bar text. I've linked the text to my styles.XML, and confirmed this works by changing the font color to red. But when i add android:gravity="center_horizontal", it doesnt seem to work. My styles.xml code: @color/colorPrimary @color/colorPrimaryDark @color/colorAccent 15sp italic center_horizontal My mainactivity oncreate event: setSupportActionBar(findViewById(R.id.tlb_roundedtoolbar)) My custom actionbar styling...

ZonedDateTime localized format I want to display ZonedDateTime in format like 11.10.2022 13:30 (GMT+2) / 11.10.2022 01:30 PM (GMT+2) depending on device settings. So far I have done something similar using formatDateTime function from DateUtils class, but this function doesn't display (GMT+2) It takes time in milliseconds as a argument. How can I do this with ZonedDateTime?