How to synchronise data between Sugar ORM and Room library? I have an app that currently uses Sugar ORM version 1.5 to manage the SQL database. My goal is to slowly rewrite the whole app using MVVM, Room and Kotlin. Because I can't at the moment delete the Sugar ORM I am looking for some way how to synchronise data between these two databases until I rewrite the whole app. Any idea how to solve this?

Suspend function 'delay' should be called only from a coroutine or another suspend function Hi am trying to run following kotlin code: Code Snippet 1 This is not working with the error: function 'delay' should be called only from a coroutine or another suspend function package kotlinx.coroutines.guide.exampleBasic02 import kotlinx.coroutines.* fun main() = runBlocking { // this: CoroutineScope launch {echoWorldWrapper() } println("Hello") } suspend fun echoWorldWrapper() { echoWorld() } fun echoWorld() { delay(1000L) println("World!") } However following...

Cannot compile when move to another compose function Hi I don't know how can I call "weight(1f)" in my another comopose funtion Error gives me Expression weight cannot be invoke as a function. The funtcion invokle is not found FoodMenu @Composable fun FoodMenu(modifier: Modifier = Modifier) { Row (modifier=Modifier.fillMaxWidth() .wrapContentSize() ) { FoodItem() } } FoodItem @Composable fun FoodItem(modifier: Modifier = Modifier) { Box(modifier = Modifier.weight(1f) { Text(text= "Salad") } Box(modifier =...

Office documents viewer for Android I am trying to open Office documents (at least the basic ones like: .doc, .xlsx, .ppxt) in my app in a native way, not by some third party website like the google doc reader in a webview, because not only they can be downloaded that way, google viewer also limits bandwidth per time and sometimes just blocks the access if there are too many atempts from the same IP. I have been trying to find a good library on github to open those, however, even going into the last pages of my queries, nothing...

Mobil geliştirme için Java mı kotlin mi [closed] Merhaba mobil programlama için Java mı kotlin mi seçmeliyim

Take or Upload Photo with webView I'm trying to take or upload a photo in Kotlin using a website via webView, but I get the following error: ERROR Error: permission_denied at /images_total: Client doesn't have permission to access the desired data. The permissions I'm putting on the Manifest file are: In Activity Main I have the following: class MainActivity :...

Try to pop up to a destination before navigating (Jetpack Compose) I am trying to do something like this private fun tryPopUpTo(route: String, navigate: () -> Unit) { val done = navController.popBackStack(route = route, inclusive = false) if (!done) { navigate() } } It doesn't work for routes with arguments. How can I solve this? The idea is if I am navigating and the destination is on the back stack I just pop to it!

Kotlin Creating a generic function that accepts any enum that implements an interface Currently I have multiple enums each with a userFriendly : string, e.g. enum class TestGroup(val userFriendly: String) { A("A"), B("B") } For each enum I now have a separate function transforming them to a class SelectField: class SelectField( val value: String, /** The value which gets submitted e.g. a UUID or other identifier */ val text: String /** The human-friendly label e.g. the name of an organisation */ ) fun transformTestGroups(testGroups: Array): List =...

Generating a Baseline Profile for a specific flow After rooting the emulator, creating the benchmark module, and following all the other steps I managed to generate a Baseline Profile. Here's the code: import androidx.benchmark.macro.ExperimentalBaselineProfilesApi import androidx.benchmark.macro.junit4.BaselineProfileRule import androidx.test.internal.runner.junit4.AndroidJUnit4ClassRunner import androidx.test.uiautomator.By import androidx.test.uiautomator.Until import org.junit.Rule import org.junit.Test import org.junit.runner.RunWith...

Update Entity in room as isCompleted and get all data using Flow problem I have a Habits app that the user can add new habits with different types and mark the habit as completed/notCompleted. The Habits fragment displays habits with two different habits types "Positive" and "Negative" using chips, so When The user checks the Positive chip the recyclerView gets the positive habits and the same thing with the negative chip. Here's How this operation work. This is my DAO Code @Query("SELECT * FROM HABIT_TABLE WHERE type = :type ORDER BY isCompleted ASC") fun...

How to suppress alert dialog "[app] won't run without Google Play services, which are not supported by your device" I have an app that uses GMS Google Play Services but is not required. When run on a device with no GMS (a chinese android TV box). It keeps showing this dialog every single time a new activity is shown. Which is annoying. How to supress this dialog. I'm aware of the solution to suppress this via <a...

How to import and use Flutter Firebase package within kotlin file I have an android project that I'm moving over to Flutter, however there are specific native-level functions where I need to utilize FirebaseAuth and FirebaseFirestore. I'm already using them higher up in my parent flutter project, but I also need to reference and use those packages inside of my Kotlin file located the android app of my flutter project. I've been messing around with trying to call upon these packages, but with no success. Android Studio can't seem to recognize or find them...

Responding to file requests I am trying to add a feature to my app that responds to file picker intents from other apps. So, for example, if in the Gmail app, the user wants to attach a file to an e-mail, a file browser dialog appears, and the user can either select a file from the shared storage or a file provided by other apps. My problem is that my app does not appear as an option here. I have generally followed the documentation here: <a href="https://developer.android.com/training/secure-file-sharing/share-file"...

convert to divide and conquer algorithm. Kotlin convert method "FINAL" to divide and conquer algorithm the task sounded like this: The buyer has n coins of H1,...,Hn. The seller has m coins in denominations of B1,...,Bm. Can the buyer purchase the item the cost S so that the seller has an exact change (if necessary). fun Final(H: ArrayList, B: ArrayList, S: Int): Boolean { var Clon_Price = false; var Temp: Int; for (i in H) { if (i == S) return true; } for (i in H.withIndex()) { Temp =...

Jetpack compose unresolved reference errors I'm keep getting this issues please help to fix these. I want to show an animated drawable in jetpack compose. Error - e: /myproject/../MainActivity.kt: (42, 17): Unresolved reference: animatedVectorResource e: /myproject/../MainActivity.kt: (43, 18): Unresolved reference: remember e: myproject/../MainActivity.kt: (43, 29): Unresolved reference: mutableStateOf I have these imports - import android.os.Bundle import androidx.activity.ComponentActivity import...

navigation bar not triggering when(it){ R.id.ic_home->{ val intent= Intent(context,MainActivity::class.java).addFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION) context.startActivity(intent) return@setOnItemSelectedListener true } R.id.ic_begen ->{ val intent = Intent(context,NewsActivity::class.java).addFlags(Intent.FLAG_ACTIVITY_NO_ANIMATION) context.startActivity(intent) return@setOnItemSelectedListener true } R.id.profile -> { val intent =...

Login with facebook with android kotlin I'm implementing login with facebook authentication with Andorid (Kotlin programming lang). It is working properly, but when I'm adding dependency injection it doesn't work. There is no response from fb. When adding @AndroidEntryPoint hilt DI, there is no error shown in logcat and there is no login result as well. When removing @AndroidEntryPoint, everything working properly and there are fb login success result is also showing. @AndroidEntryPoint class AuthFragment : Fragment() { private...

Return a value from a function in Kotlin I'm just learning Kotlin, I have learnt series of lessons about functions and variables, but find it difficult to understand Return a value from a function lesson.

Spring data mongo using CoroutineCrudRepository I am trying to use new Spring data reactive approach using CoroutineCrudRepository in a Kotlin project. This is my application's code: @SpringBootApplication class DemoApplication data class PersonDto(val age: Int, val name : String) @RestController @RequestMapping("/persons") class PersonController (val personService: PersonService) { @GetMapping suspend fun getPersons() = personService.getAll() @PostMapping suspend fun savePerson(@RequestBody personDto: PersonDto)...

Kotlin, why is function deprecated? Recently, i've wanted to use capitalize() function. When I did so, a warning occured: 'capitalize(): String' is deprecated. Use replaceFirstChar instead. The suggested replaceFirstChar feels quite long and complicated: input.replaceFirstChar { if (it.isLowerCase()) it.titlecase(Locale.getDefault()) else it.toString() } Although everything works fine with capitalize(), i've been just wondering what the reason for deprecated warning is, if there's any problem with it and how can i solve this.

How to switch different fragment onClicking ItemView of recyclerView item ? kotlin I want to switch the current fragment (containing recycler-View) to a different fragment on clicking the itemView of the recycler view. Adapter Code class pastActivity_adapter(options: FirestoreRecyclerOptions, val context: Context): FirestoreRecyclerAdapter(options) { class MyViewHolder(itemView : View) : RecyclerView.ViewHolder(itemView){ val author_name : TextView = itemView.findViewById(R.id.post_author_name) val author_defect : TextView =...

app getting crashed after adding onclick to the buttons i am a new app developer i was working on a app for the past few days i have implemented onclicklistner in my program then the app gets crash itself after adding onclick button in my program and the program excuetes without errors but its getting crashed while running the app and i am using new version of andriod. thank you this is my Main activity: package com.example.project5; import androidx.appcompat.app.AppCompatActivity; import android.content.Intent; import android.os.Bundle; import...

Unresolved reference: Gson() in Kotlin Android Studio project I implemented the Lib implementation 'com.google.code.gsongson2.9.1' in my build.gradle (Module) file but after successfully syncing, the Gson() reference can't be resolved. I searched the whole Internet but everyone says you only need the Lib but I already have it implemented and it doesn't solve my problem... Does anybody know what the error is here? Thanks in advance!

Lazycolumn does not update when deleting an item I am trying to delete an item from Lazycolumn. Here is my code : MyViewModel.kt : class MyViewModel:ViewModel() { val items = MutableLiveData() fun removeItem(item: Items) { items.value = items.value?.filter { it != item }?.toList() } MainActivity.kt : class MainActivity : ComponentActivity() { @ExperimentalFoundationApi @SuppressLint("UnusedMaterialScaffoldPaddingParameter") override fun onCreate(savedInstanceState: Bundle?) {...

Room Database - How to filter with nullable list - where null indicates "accept all"? I'm constructing a room database query with optional filters. You can either pass in a set of values to accept, or null - meaning "accept everything". Signature: @Query("SELECT * FROM DETECTION " + "WHERE :sessionIds IS NULL OR sessionId IN (:sessionIds) " + "AND :sources IS NULL OR source in (:sources) " + "AND :labels IS NULL OR label in (:labels)" ) fun getFilteredDetections(sessionIds: List?, sources: List?, labels: List?): List The...

How to lock navbar android studio i would like to know how I permanently block the android navigation bar. I use the Kotlin language and I need a function that when I enter the application, the standard Android navigation bar disappears and no longer appears, regardless of what I do within the application. I found only codes that hide the slash, but it doesn't work for me. I need to block it so no one can access it as soon as it enters the app.

How to save an Array List/Mutable List to SharedPreferences in Kotlin Android using Gson? I simply want to store my mutable list/array list of Strings to SharedPreferences in order to retrieve the saved list again after re-opening the app (USING GSON). !! WITHOUT using any class. It's a simple mutable list (I add things with usedCodesList.add("example")): private var usedCodesList = mutableListOf("022", "027") I did not find any tutorial that fits what I need. (NO Class, NO Recycler View or List View or anything like that. I use usedCodesList.add(), usedCodesList.clear() and the...

Navigation Components - can't navigate to the second fragment I'd like to use Navigation Components to navigate through my Fragments. I've already prepared the navigation graph, setup the whole (suggested by other SO posts) but with no luck in my case. The program literally doesn't do anything as it supposed to. For now, I'm using ViewPager 2 among with Navigation components. I'm already confused, and I'm not sure where I messed up, but.. Here's some code: Activity Main.xml Fragment latest.xml (my "starting" fragment)...

How to use custom data serialization in Kotlin? I am using kotlin @Serializable to convert the request body into my data class but I have an entity and it has a String variable but the @Serializable is converting the integer from the request to string. I want to create a condition like if data is integer then don't serialize it and throw and exception instead. Request body: { "id": 123, "name": "abc" } Kotlin Data Class Entity: @Serializable data class PersonEntity( val id: String, val name: String ) The @Serializable is...

Deleting entity in a relationship with JPA and kotlin gives SQLIntegrityConstraintViolationException I am writing a Spring Boot app in Kotlin where I have a couple of JPA entities, User and Community, and a many to many relationship that I modeled as a separate Participation entity since I needed to add some fields to the relatioship. The behavior that I want to achieve is that when I delete a user or a community, all the participations involving the deleted entity must be deleted, so I set CascadeType.ALL like this: // User.kt @Entity class User( @Id var id: String, var...