Sending emails with an android app through company smtp server I need to find a suitable smtp library for my android project, which can connect to a specific company smtp server and send an email through it. I've tried a few of them and none of them worked. The company email I want to send emails from doesn't need a password. I tried javax.mail library, maybe I just need to modify properties, code below: props.put("mail.smtp.host", host) props.put("mail.smtp.ssl.trust", host) props.put("mail.smtp.port", "25") props.put("mail.smtp.auth", "false")...

Understanding Kotlin enum converter i have following kotlin code, made by guy who is nowhere to be found anymore... Enum class: enum class CodeType(val code: Long) { UNDEFINED(0), A(1), B(2), C(3), D(4); companion object { private val values = values() fun getByDbCode(dbCode: Long) = values.firstOrNull { it.code == dbCode } } } Converter class ? @Converter(autoApply = true) class CodeTypeEnumConverter : AttributeConverter { override fun convertToEntityAttribute(dbCode: Long?): CodeType? {...

I want to retrieve user data from Realtime database (Firebase) Process: com.example.proghelp, PID: 18383 kotlin.KotlinNullPointerException at com.example.proghelp.ProfileActivity.getusersettings(ProfileActivity.kt:171) at com.example.proghelp.ProfileActivity$read_write_fire$2.onDataChange(ProfileActivity.kt:83) at com.google.firebase.database.core.ValueEventRegistration.fireEvent(com.google.firebase:firebase-database@@16.0.4:75) at...

How to upload image to server using okHttp3 Multipart on Kotlin? How to upload image to server using okHttp3 Multipart (Kotlin) (on the background)?

What to write in Easypaisa signup Integration info if you want it for an Android app? I want to use Easypaisa online payment service via debit/credit card for purely android application but in the signup for merchants account, it asks for a Url and plugin required.

ListAdapter with multiple sections Any idea how to implement RecyclerView.ListAdapter with multiple section and keep the functionality of ListAdapter (computing diffs)?

How to call 'clone' method in Kotlin? I can't call clone method in Kotlin. How can I call clone method in case of below: fun foo(obj: Any?): Int { var ret: Int = 0 if (obj === null) { // do Something } else if (obj is Cloneable) { var copied: Cloneable = (obj as Cloneable).clone() // Error occurs // do Something } } Cannot access clone: It is protected in Cloneable

Collection<KProperty1<I,*>> How to get the I I'm currently using Reflection to inspect an element at runtime using the class.memberProperties function. The type of properties is collection so I run through each of the KProperty objects to find the one that I want by checking if the name is equal to "nameIWant", though I would much rather be able to get the I instance from the KProperty by using the .get() method on the property, so that then I could do a check such as: if (property is ClassIWant) { //Do something } My code looks...

How to change primary key of Room database I have a sqlite database and i want to change my primarykey using room.To do it, I create a new table, copy the data from the old table to new table, drop the old table and then rename the new table to the old table. This is my migration code: private val MIGRATION_5_6: Migration = object : Migration(5, 6) { override fun migrate(database: SupportSQLiteDatabase) { //Change the SpeechToTextResult primaryKeys database.execSQL(""" CREATE TABLE...

Got SecurityException when call getLastKnownLocation in JUnit test I have simple method for getting last known location from standard LocationManager: fun getLastKnownLocation(context: Context): SimpleLocation { val locationManager = context.getSystemService(Context.LOCATION_SERVICE) as LocationManager val criteria = Criteria() criteria.accuracy = Criteria.ACCURACY_FINE val location: android.location.Location? location = locationManager.getLastKnownLocation(locationManager.getBestProvider(criteria, true))...

The value of NumberPicker doesn't change I'm a beginner in android and Kotlin. I want to get string values I set as displayedValues from NumberPicker. I tried, but It only returns Int numbers. After some search, I found a question Formatted value of NumberPicker disappears onClick which might be the solution to my problem. But I'm beginner and never studied java, so I couldn't apply it to my code. I need your help to...

How to properly close SQLiteConnection object for database? abc.db' was leaked! var db: SQLiteDatabase? = null var cursor: Cursor? = null try { db = getReadWriteDB() val query = "Select * From Table" cursor = db.rawQuery(query, null) } catch (e: Exception) { e.printStackTrace() } finally { if (cursor != null && !cursor.isClosed()) { cursor.close() } if(db != null && !db.isOpen()) { db.close() } } Below is warning Text display. Please fix your application to end transactions in progress properly and...

Is there any way to display caption (Sub title) in Android youtube player? I'm developing an app where I need to play youtube videos. I'm using youtube suppport fragment for playing the video. How can I display caption (Subtitle) in it?

RecyclerView doesn't update his item's layouts I have a RecyclerView wich contains TextViews as items. When I click on a item, it selects him and it normally changes layout of the TextView. However, TextView's layout doesn't update except if I scroll the RecyclerView. In back the item is selected, but in front, I have to scroll the RecyclerView to see the change. For informations, my RecyclerView is in a Fragment wich is in a ViewPager2. I use notifyItemChanged()and I tried with notifyDataSetChanged(). I've also tried with...

How to upload an image to a server using http request in kotlin? I have written code to upload images to the server using kotlin, that is, the user takes a picture through the camera then displays the image in the imageView when the user clicks the send button, I want the image from ImageView to be sent to the server, but I don't know how to change the image from ImageView be a file that can be sent to the server. I have designed code to capture image and set the image in image view to preview it but not getting idea to upload it to the server using http...

Live stream from other Android app to Instagram Can someone please help me to broadcast stream from my android app to Instagram. want to connect my stream to instagram's live stream I have done some R&D but didn't get any satisfying result.

How to add external library into another library (module) I'm developing a library and i want to import some 3rd party library into my library it is working fine in sample project but not importing into new project.

NavHostFragment error inflating class fragment when screen is rotated I'm creating an application where it uses the Navigation Architecture, but my navigation has no default host, and can be set based on the selected destination by the user. So this is the setup of my NavHostFragment override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) setContentView(R.layout.activity_main) var finalHost: NavHostFragment? = null when (bundle) { REQUEST_FIRST -> { finalHost =...

Is there a possibility to exclude certain service calls for http logging? In context of https://github.com/square/okhttp/tree/master/okhttp-logging-interceptor is there a possibility to exclude some service calls? In my app are 2-3 HTTP Calls, where I dont want, that the logging-interceptor logs it. Is there a possibility to override the intercept method in the HttpLoggingInterceptor class? Is there a possibility to write an annotation proccesor, which...

How to "get return value" in XCode By Kotlin/Native Project I Use Kotlin/Native Sample Code https://github.com/kotlin/web-site-samples/archive/mpp-kn-shared-lib-groovy-macos.zip Build then get "libnative.dylib" But in my IOS Project How to use it?? below is my step: Create Module/module.modulemap module MyLib [extern_c] { header "libnative_api.h" export * } and put libnative.dylib in here add Build Setting > Swift Compiler - Search Paths > Import Path ${SRCROOT}/Module import MyLib class ViewController: UIViewController {...

Single method to launch a coroutine I have a StorageRepository that talks with RoomDB and also shared prefs. I want this communication to happen through a single method on a IO thread. I have done this until now - class StorageRepository(private val coroutineDispatcher: CoroutineContext = Dispatchers.Main ) : CoroutineScope { private val job = Job() override val coroutineContext: CoroutineContext get() = job + coroutineDispatcher override fun storeUserDetails(userDetails: UserDetails) {...

AndroidX Wearable Package not Found/Missing I am trying to implement a standalone Android wearable app using Kotlin and AndroidX. The app is running fine but logs show a crash at startup (Class not found). I have tried targeting older apks versions but nothing seems to resolve the issue. Any suggestion? 2019-08-14 120145.959 22258-22258/com.ubanquity.xapp.wear I/art: Rejecting re-init on previously-failed class java.lang.Class: java.lang.NoClassDefFoundError: Failed resolution of: Landroid/view/View$OnUnhandledKeyEventListener;...

libGDX - Glitched skin on older Android versions The game I am working on works just fine on my phone and most devices. However, I tested it on an older tablet, a Nexus 7 that is running Android 4.2.1, and that's how the game looked like: And this is how the game should look like: Only what is included in the Skin I am using is glitched, as everything else (such as the game elements) looks just fine. So what could be the issue and how could I fix it?

Access a value from a Kotlin script using jsr-223 I'm wondering if it's possible to access variables from a kotlin script using jsr-223 with(ScriptEngineManager().getEngineByExtension("kts")!!) { eval("val x = 3") val x = get("x") println(x)

Click on home button try to resume application Today i have faced some strange behavior of my application. Accidentally while i was testing app on a physical device (Huawei p8 lite), when i clicked on the home button(circle) i have noticed that app tries to be opened once again. Some sort of the splash screening. So to be more precise i will give you the sequence of events. My app: Running -> Click on the home -> activity is invisible -> activity is visible for millisecond -> activity is invisible. Other apps: Running -> Click on the...

OutOfMemoryError while trying to download large file using Retrofit @Streaming annotation I'm downloading files using retrofit client, but when there is large file (200 MB) it throws java.lang.OutOfMemoryError: I have @Streaming annotation also and this is my download service method @Streaming @GET("{path}") suspend fun downloadFile(@Path("path") path: String): Response` Here is invoke code snippet suspend fun downloadFile(remotePath: String) { try { val response = api.downloadFile(remotePath) if (response.isSuccessful) { } else {} } catch (e: Exception) {...

What should I learn to create app as described? [on hold] I'm new to android development (and programming in general), so I need your advise. I have already created few offline native android apps (pretty basic ones). Now I want to create sorta news app (not exactly, but still). Main feature I need to implement is "feed", where I will post info and users can see it. What technologies languages etc I need to learn. And what's the best way to complete this? Peace

JMX Exporter to Prometheus for Kotlin I am trying to use JMX Exporter for my kotlin application (with Maven). I have gone through https://github.com/prometheus/jmx_exporter, https://www.openlogic.com/blog/monitoring-java-applications-prometheus-and-grafana-part-1 these articles and trying to do the same way. My problem...

Kotlin Nested Coroutine Launches not triggering? I've noticed sometimes when I have a Kotlin Coroutine'launch' nested within another 'launch' that it doesn't always fire. For instance, I've got this code: private suspend fun askToAddFriend { val friendExists = friendExists(userUsername) if (!friendExists) { withContext(Dispatchers.Main) { AlertDialog.Builder(this@EntryActivity) .setTitle(getString(R.string.send_friend_request))...

Jetpack Compose: Exception while analyzing expression I am trying to build simple app using Jetpack Compose. I followed this documentation, downloaded repository and created my own module. Code is pretty simple: import android.app.Activity import android.os.Bundle import androidx.compose.Composable import androidx.ui.core.Text import androidx.ui.core.setContent import...