How to cache bson ObjectId I have a question regarding ObjectId caching. I am caching mongoDB document using redis, and when I check the cached value, only the timeStamp and date of the ObjectId are cached as shown below, and they are being retrieved with values different from the ObjectId of the actual document. "id":{ "@class":"org.bson.types.ObjectId", "timestamp":1658025133, "date":["java.util.Date",1658025133000] }, Actual ObjectId: 6311ba39c31566544746d31b ObjectId retrieved as cached result:...

Request Permission in jetpack compose I want request a permission and I am looking in this stack overflow. Inside this question there is two answer which I am getting confused. First one is using Activity-compose and another is using Google Accompanist's Jetpack Compose Permissions. So which one is recommended way of doing? Can someone guide me on this....

How can I convert firestore data to object in kotlin? I'm trying get data from Firestore. I get the data successfully. Log.i("FirestoreClass", "$document") resulted in the document from the firestore. But while coverting it to a object of User class: @Parcelize data class User( var id : String?, var email : String?, var profileHeadline : String? = "", var profileSummary : String? = "", var profilePhoto : String? = "", var personalInfo: PersonalInfo? = PersonalInfo(), var education: List? = listOf(Education()),...

how to make main activity and fragment communicate? i am trying to learn how to work with fragments. In my app I created a fragment (CreatePathFragment.kt and create_path_fragment.xml) that contains editText to allow the insertion of coordinates and a button that must call a function (createPath, created in the navFun.kt class) to create a path between the points inserted, on the map present in the main activity. i tried to write the code in the fragment as i would write it in the main_activity.kt but i can't get it to work, i don't understand...

How to remove all special characters, whitespaces, newlines, and tabs at once in Kotlin? So this is my code var greet = """ hello ; good . morning , friends how are you """ var multispace = greet.replace("\\s+".toRegex(), " ") val re = Regex("[^A-Za-z0-9 ]") var specialchar = re.replace(b, "") print(clearspecialchar) I succeeded remove multiple whitespaces, newlines, and tabs in variable multispace, but it creates a new whitespace after removing a newlines. I also succeeded remove all special characters in variable specialchar, but the whitespaces...

Items are loading in RecyclerView but without their values I am trying to list in a RecyclerView a xml. All Items are loading but without values - means a TextView should take a value like title from the FirebaseDatabase but the TextView is empty. I think that he is not getting values (= null) I am not getting Errors from my Code class HomeFragment : Fragment(R.layout.fragment_home) { companion object { val...

Unresolved reference: Array Adapter I am trying to create a simple counter app with some images. I am trying to create a spinner which includes different items. I was using this link: https://www.geeksforgeeks.org/spinner-in-kotlin/ to try create it but then i got this error: Here that part of the code: val spinner = findViewById(R.id.drop_1) if (spinner != null) {...

How to remove AM/PM from TimepickerDialog in Android? hi my requirement is to remove AM/PM from TimepickerDialog here is my code:-- val mStartTimePicker = TimePickerDialog(this,TimePickerDialog.THEME_HOLO_LIGHT, { timePicker, hour, minute -> onTimePicked(hour, minute) }, hour.toString().toInt(), minute.toString().toInt(), false) mStartTimePicker.setTitle("Select Time") hideAmPmLayout(mStartTimePicker)...

How to add retrofit add "[ ]" in query? Url - https://api.data.gov.in/resource/9ef84268-d588-465a-a308-a864a43d0070?filters%5Bmarket%5D=Agra&api-key=API_KEY&format=json&offset=2&limit=10 I was able to add format, limit, offset etc in API, but failed to add filters%5Bmarket%5D=Agra in the API call, how to add it? Using retrofit for API calls. interface GovApi { @GET("9ef84268-d588-465a-a308-a864a43d0070") suspend fun getList( @Query("api-key") apiKey: String, @Query("format") format: String,...

Android: Can a JavascriptInterface function have default parameters? I'm making my first steps in android webapp development. I wrote some android functions and made them accessible to javascript, it works like a charm (set pref, read pref...). My question: is it possible to declare default value for function arguments? As an illustration: showToast() hereunder is available from within javadcript in the WebView webView1. But it can't be called with a single argument (lengthLong: Boolean = true seems to have no effect js-side). class...

The readText method catches an exception My method readText catches an exception each time i use it, readBytes doesn'twork either. I verified i authorized internet in my manifest and everything should work. response = URL("http://api.openweathermap.org/data/2.5/weatherq=vernon,fr&units=metric&appid=44f6c5a689b6093024ab330588d8aacd").readText(Charsets.UTF_8)

How do I send a notification every day at 9 am? I wanted to send a notification every day at 9 o'clock in the morning that will be taken from the SQLite database, how can this be implemented? (Kotlin)

Query n to m SQlite database I have n to m database (movie and cast). I need to get a list of cast associated with a movie. @Entity(tableName = "movie") data class MovieDbModel( @PrimaryKey(autoGenerate = false) val id: Int, val poster_path: String, val overview: String, val title: String) @Entity(tableName = "cast") @TypeConverters(CastConverter::class) data class CastDbModel( @PrimaryKey(autoGenerate = false) val id : Int, val cast: Cast //Arraylist of casts ) data class Cast( @Embedded...

Firebase auth takes so much time to authenticate Android I'm trying to use Firebase auth with MVVM and Dependency Injection, the issue is that my auth state is stuck in Loading for several minutes before authentication, It takes so much time to authenticate. It was working fine until 2 days ago and I can't find a solution to it. My ViewModel @HiltViewModel class AppViewModel @Inject constructor(private val firebaseAuth: FirebaseAuth) : ViewModel() { private val _register = MutableStateFlow(Resource.Unspecified()) val register : Flow =...

How to show recycle view activity inside the fragment layout in android studio? FolderActivity.java public class FolderActivity extends AppCompatActivity { private MyListAdapter myListAdapter; private HashMap videodata; private HashMap latestvideo=new HashMap(); @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); Toolbar toolbar=findViewById(R.id.toolbar); setSupportActionBar(toolbar); getSupportActionBar().setTitle("");...

Paginate a response from api in flutter I'm building an application flutter ( movie db api ) from where i'm getting many pages of movies , upon launch of app , i'm fetching the first page which contains almost 20 movies , now i would like to someone increment the page so that i can fetch more videos ( i want something similar to paging libary 3 in android ) , is this possible to do in flutter , any help is appreciated . This is my code in flutter Expanded( child: Consumer( builder: (context,ref,_){...

How to navigate back to the correct one screen before the previous in jetpack compose? I have four compose screens and by clicking on their items user leads to my AdShowScreen then after watching the ad they lead to the FinalShow screen. like the image below Now I want to navigate back to one of the first compose screens correctly by the back press button from FinalShowScreen. I mean from 3 to 1 in the image above. This is my navGraph. @SuppressLint("UnrememberedMutableState") @Composable fun...

How to select multiple items from recycler view and enable checkbox to delete those items I am a beginner in android development(Kotlin). I want to select multiple items from recycler view by long clicking. When the item is long clicked check box must appear and it should be checked and when I tap on other items those should also be selected. There is a delete button I want to enable delete button only when the long press occurs. All the selected items should be deleted when the delete button is pressed. Please someone guide me how to do this.

Kotlin + Hilt: Cannot inject repository class into service class I'm working on a multi-module Kotlin app and I'm not being able to inject a repository class (located in one module) into its corresponding service class (located in a different module). TrackService: class TrackService { @Inject lateinit var repository: TrackRepository init { setDependencies() } private fun setDependencies() { val repository = EntryPointAccessors.fromApplication( aw.context,...

Display full screen Ad (Flutter/Admob) I would like to display an admob ad in advanced native and full screen. On this ad I would like the image/video to take up about 90%. Except that the image doesn't extend over the whole MediaView area (green one) and I don't understand why (little documentation on Flutter/Admob) : XML : Kotlin : override fun createNativeAd( nativeAd: NativeAd?, customOptions:...

Customize check in recycleview -kotlin I have the following question and I have no idea how to do it. How could I customize the checkboxes of each item of my recycleview, in this way. Example how you want to get the view: But when running my project and listing my questions in my recycleview this shows with 1 single layout for all questions. this is my adapter.xml this...

Android: custom bottom navigation view with one center big icon I'm creating bottom navigation bar, but can't figure this out, how to add the 3 (blue circle) icon?

Android download image with Workmanager and show it in gallery I wrote code that downloads some source of data from the internet (in this example picture), shows downloadPercentages while the process of downloading is ongoing and writes this file on android storage. works well and looks very nice everything except saving on android storage. Code is written in 3 classes, but I will show only one that I think is relevant (DownloadWorker). If anyone thinks other classes might help, let me now in comment and I will add them. DownloadWorker: class...

Unresolved reference: createNotificationChannel Unable to solve this error. I had previously build this app, and was working fine. But now gives me this error. Anyone any idea how to solve this? Task locationcompileDebugKotlin FAILED e: C:\Users\DELL\Downloads\flutter_windows_2.10.2-stable\flutter\.pub- cache\hosted\pub.dartlang.org\location- 4.4.0\android\src\main\java\com\lyokone\location\FlutterLocationService.kt: (73, 33): Unresolved reference: createNotificationChannel FlutterLocationService.kt file: private fun...

Save data offline from a selected book by user in Kotlin Android I have an app that give to the user all chapters of a book. I want to made each chapter downloadable if the user want to download it, with a button. I would like to know how to do this. I'm using firebase realtime to get this chapters from a online db. Should I save the downloaded chapters in a local database on phone or have another way? I'm already using dbref.keepSynced(true) and FirebaseDatabase.getInstance().setPersistenceEnabled(true). But I want to save in cache just the chapters name,...

Android how to remove image from gallery I have get data all images in gallery from my phone. But when i want action delete one image selected and can't delete image. How to use java or kotlin to delete image in gallery ?. Sorry my english very bad. My code to get all image from gallery: ``` val imageProjection = arrayOf( MediaStore.Images.Media._ID, MediaStore.Images.Media.BUCKET_DISPLAY_NAME, MediaStore.Images.Media.DATE_TAKEN, MediaStore.Images.Media.SIZE,...

Delete All Values in One to Many Relationship Room Kotlin I want to delete all values inside one to many relationship Parent Table : @Entity(tableName = "Product") data class Products ( @PrimaryKey(autoGenerate = false) @ColumnInfo(name = "id") var id : Int = 0, @ColumnInfo(name = "name") var name : String? = null, @ColumnInfo(name = "category_id") var category_id : String? = null, @ColumnInfo(name = "subcategory_id") var subcategory_id : String? = null, @ColumnInfo(name = "other_images") var other_images: List...

Koltin in VScode today I tried to run easy Kotlin code in VScode, but there is error: cd "c:\Users\\\Visual Studio\Kotlin (There is the file saved) \" && kotlinc main.kt -include-runtime -d main.jar && java -jar main.jar 'kotlinc' is not recognized as an internal or external command, operable program or batch file. I have installed "Code Runner" extension and "Kotlin Language" extension. I searched on the internet and youtube, but in tutorials, it worked for them. Can somebody help please. Thanks

unresolved reference hiltViewModel() despite dagger-hilt in build.gradle I'm building an Android app that uses Dagger-Hilt. Altough Dagger-Hilt is in my build.gradle file as you can see below, build.gradle (project file): buildscript { ext { compose_version = '1.1.0-beta01' } dependencies { classpath 'com.google.daggerhilt android gradle plugin2.38.1' } } ... build.gradle (app file): ... dependencies { ... implementation "com.google.daggerhilt android2.38.1" kapt "com.google.daggerhilt compiler2.38.1" ... }...

How to combine 2 layout manages in single recyclerview android How to combine 2 layout manages in single recyclerview Eg:in one Linearlayout manger and gridlayout manager single recyclerview