How to block any click on the screen until dialog show animation complete? I'm writing puzzle game. When CountDownTimer finishes, dialog is displayed. Dialog displayed with animation. If I click anywhere on the screen until dialog showing animation is completed, then game returns to the first level. Today I noticed another unexpected behavior. I finished level at the same time with timer finish and as result I had two dialogs: TimeOverDialog and LevelCompleteDialog. So, what I have to do to solve this problem? Sorry for my English, I promise to learn English)))

Intercepting suspend functions using a Java dynamic proxy The following code uses the function [sProxy] to intercept suspend functions. It prints: add[1, 2] called 3 Code typealias SInvocation = suspend () -> Any? typealias SInterceptor = suspend (method: Method, args: List, invocation: SInvocation) -> Any? interface Calculator { suspend fun add(a: Int, b: Int): Int } class CalculatorImpl : Calculator { override suspend fun add(a: Int, b: Int) = a + b } val Printer: SInterceptor = { method, args, invocation ->...

Pass data from different class I'm tring to pass the data of label to the LivePreviewActivity. Is there a better way to do this ? I don't know if the UIThread is working. I have also need the UIThread because i need to log the data continuously. For now the Log doesn't print on the console. My goal is accessing the label text on the Activity. Thanks. Please correct me if I'm doing this wrong. This is a quick-start project MLKit on Firebase. Any help will be wonderful. I have also need the UIThread because i need to log the...

What's the "official" language for Android Studio? I often encounter this topic as an Android app developer. Some developers say only Kotlin is the official language for Android Studio. And I disagree with it. Google added Kotlin as an officially supported first-class Language with Android Studio at Google I/O '17. I think the two words - officially supported and first-class make people confused. In my opinion, Java was already an official language for Android Studio. And also, C++ can be one of the official language. Since Google said...

Mapping an iterable 1-to-n in kotlin What I am trying to do is use the Iterable.map but instead of transforming every one value to one new value, I want to transform one value to multiple new values. For example: val myList = listOf("test", "123", "another.test", "test2") val result = myList.map { if(it.contains(".")) { return@map it.split(".") } else { return@map it } } //desired output: ["test", "123", "another", "test", "test2"] This code would result in a List which contains both strings and...

Sort list merged with 2 different pojos according to date Here is my pojo class inner class Data : Serializable { var abc: ArrayList? = null var xyz: ArrayList? = null inner class XYZ : Serializable { var x: String? = null var date: String? = null } inner class ABC : Serializable { var a: String? = null var date: String? = null } } I...

Pick from Google Photos provider with ACTION_GET_CONTENT or OPEN_DOCUMENT I have no clue at why this happens, but I am not able to pick images from the Google Photos provider. Testing on API 27. With ACTION_GET_CONTENT If I use: val intent = Intent(Intent.ACTION_GET_CONTENT) intent.addCategory(Intent.CATEGORY_OPENABLE) intent.type = "image/*" I can see Google Photos among the provider I can browse to some picture and select it Then I am directed back to the providers list (not to my app), as if the provider had crashed in a try-catch When I open the Photos...

"type inference failed" on `JsonArray::contains`? This test here: test("can add and retrieve array values"){ //given val ja = JsonArray() with(ja){ add(1) add(2) add(3) add(4) add(5) } //when val jo = json { "emptyArray" to JsonArray() "preparedArray" to ja } //then jo shouldBe instanceOf(JsonObject::class) jo["emptyArray"].asJsonArray.size() shouldBe 0 val retJa = jo["preparedArray"].asJsonArray retJa.size() shouldBe 5...

Deep learning 4 j create FCN8 model I'm try to build fcn8 model with dl4j library, I want to use pretrained VGG16 from zooModel and then connect my decoder, but I confused how to do it. // This is a simple kotlin code. val vgg16 = VGG16( 123L, intArrayOf(3, 255, 255), 2, Adam(0.001), CacheMode.DEVICE, WorkspaceMode.ENABLED, ConvolutionLayer.AlgoMode.PREFER_FASTEST ) val m = vgg16.initPretrained() val c = m.conf() // and then how? I have readed about graph but now need...

Database exception while displaying Chatlist in Android Kotlin Chat app I have been developing a chatting app in Android using Kotlin and Firebase. Registering, searching and sending message to a user, all of this has been successful. But I'm unable to generate a chatlist which is a list of the recent chats of the user. The user can tap on it to access that particular chat, just like any other chatting app. The user is stored in a User model and the data is registered in the database in that same format. I am able to display the profile picture of the user...

My app is crashing upon launch after adding firebase authentication class MainActivity : AppCompatActivity() { private lateinit var auth: FirebaseAuth override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) setContentView(R.layout.activity_main) auth = FirebaseAuth.getInstance() logInPage_tv_signUp.setOnClickListener { var signUpIntent = Intent(this@MainActivity, SignUp::class.java) startActivity(signUpIntent) } logInPage_btn_login.setOnClickListener {...

Room database view with RecyclerView I'm new to Room and Kotlin, and I'm trying to build a simple Room's database and present it in a RecyclerView that sits in a ViewPager. The Activity contains a ViewPager object, that ViewPager contains a Fragment, and that Fragment contains a RecyclerView: Activity --> ViewPager --> Fragment --> RecyclerView The problems I have is that I get null when I'm trying to receive the database (after an insertion). code: @Entity(tableName = "Guests_table") data class Guest(@NonNull @ColumnInfo...

childFragmentManager not found when trying to add fragments to adapter I'm trying to use an adapter to add some fragments but it seems that the childFragmentManager has not been found: Unresolved reference: childFragmentManager What should be used instead to resolve this error? class MyRVAdapter(private val myList: ArrayList) : RecyclerView.Adapter() { override fun getItemCount(): Int { return myList.size } override fun onBindViewHolder(holder: ViewHolder, position: Int) { holder.myBtn.text = (myList[position].textBtnTitle)...

solve issue on custom MaterialEditText I have a visual anomaly on a custom MaterialEditText. I modified the onDraw to display a field validator (valid e-mail address or not). Do you have a track to solve this problem? override fun onDraw(canvas: Canvas) { super.onDraw(canvas) conditions.forEach { val predicate = it.predicate(text.toString()) val pen = when { showErrorIfNeeded && !predicate && !text.isNullOrEmpty() -> redPen predicate && !text.isNullOrEmpty() -> greenPen...

Unreference reference view I'm new at Kotlin and i don't know how to fix this error: Unresolved reference: view. My objective is by pressing button go to the other activity. I copy the code: class MainActivity : AppCompatActivity() { override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) setContentView(R.layout.activity_main) findViewById(R.id.button).setOnClickListener{ sendMessage(view) } } val EXTRA_MESSAGE =...

How to manage "dynamic data structures" in kotlin? I’m developing an application for managing data for a repository of big data-sheets. I’m using kotlin + mongodb. The problem I face is that the requested data structure is partially unknown. To be more specific, data structure is composed by some basic fields plus other fields that could be set by “primary users” at runtime. As for the type of such “user fields” I can go with string. So, I’d need to use a sort of “dynamic structure”, like: data class BasicInfo (...

Spring boot SOAP WSSecurityException: No crypto property file supplied for signature I'm trying to sign a soap request. Currently I have @Bean fun articleClient(marshaller: Jaxb2Marshaller): MohSoapClient { val client = MohSoapClient() client.defaultUri = url client.marshaller = marshaller client.unmarshaller = marshaller client.interceptors = arrayOf(LogInterceptor(), wss4jSecurityInterceptor()) return client } @Bean fun wss4jSecurityInterceptor(): Wss4jSecurityInterceptor { val interceptor =...

How to make request for image uploding on server in multipart with some other fields using retrofit? i'm new on android and I need update my profile in my app. for this I need to upload image on server using multipart with some other fields like name, city, mobile, email etc, in single request. can any one help me for making POST request using Retrofit 2. It may be: @Multipart @POST(/update_profile) Call postImage(@Part MultipartBody.Part image, @Part("name") RequestBody name, @RequestBody email, @RequestBody mobile); it is right or wrong? how can I define the type of other fields,...

Get type of generic at runtime in Kotlin How i can do it properly? Because this is not working. I have a null result always. class SomeClass() When i try to do SomeClass or something like that I get a null because i dont know how to get type of Generic properly. I already tried to create fields in class, but i want to avoid creating fields in this class @Suppress("UNCHECKED_CAST") fun SomeClass.defaultSerializer(): KSerializer? = when (this) { String::class -> StringSerializer Char::class -> CharSerializer...

Hot to "flat map" an ObjectProperty of an ObjectProperty in TornadoFX (JavaFX extension)? Let's say I have three classes: class A { val bProperty: ObjectProperty = SimpleObjectProperty(B(C("test"))) val cObservable: ObservableValue = ??? } class B(initialC: C) { val cProperty: ObjectProperty = SimpleObjectProperty(initialC) } class C(val string: String) As you may have seen, in class A I want to have a cObservable, which updates its value either when the value of bProperty changed or when the value of cProperty in the current bProperty.value changed. The closest...

Gradle build fails due to lint classpath error on Android I have an Android app whose build fails when I run the following command: ./gradlew clean build -Pbuild=dev --stacktrace Here is the error I receive:

Task applint FAILED

FAILURE: Build failed with an exception. * What went wrong: A problem was found with the configuration of task 'applint'.

No value has been specified for property 'lintClassPath'.

App module build.gradle file: apply plugin: 'com.android.application' apply plugin: 'kotlin-android' apply plugin:...

AlarmManager how to open Activity on tap? I'm struggling this for 2nd day and really need help Here's how I start the notification : object MyAlarmManager { //some stuff private fun createNotification(title: String, calendar: Calendar){ val alarmManager = context.getSystemService(Context.ALARM_SERVICE) as AlarmManager val intent = Intent(context, AlertReceiver::class.java) val pendingIntent = PendingIntent.getBroadcast(context, 1, intent, 0) alarmManager.setExact(AlarmManager.RTC_WAKEUP,...

Run text to speech automatically outside onInit So right now when I run the app the function showLabel runs first than the Initializing of TTS. I always got an error that tts is null. Is there a better way of fixing this? Should I move my code on showLabel inside onInit? It has a parameter too. The goal would be the firstObject will be the text for the TTS. When i try to add .speak inside Oninit it works but when outside it would result in a null error. Any help would be thankful! private var tts: TextToSpeech? = null var firstObject =...

Retrofit Response with dynamic JSON array names In my case I have the following json response: { "all": { "loc1": [ { "userId": "1", "userName": "user1" }, { "userId": "2", "userName": "user2" }, { "userId": "2", "userName": "user2" }, { "userId": "1", "userName": "user1" }, {...

kotlin exception thrown in android library shown as warning instead of error i am working on an android library written in kotlin and in it i want to throw an exception. lets say my library contains a function that takes an Int as parameter and the number 2 is illegal for whatever reason... so i would have: fun doSomething(value: Int) { if(value == 2) throw IllegalArgumentException("the number 2 is not allowed in this function") else //do something } i would expect that if i call doSomething(2) the following will happen: the exception...

Java unchecked call vs Kotlin in Android LiveData I'm developing my own LiveData extension. I'v decided to do it in java. My code: public class LiveEvent extends LiveData { @Override public void observe(@NonNull LifecycleOwner owner, @NonNull Observer

How to get annotation parameter in annotation processor I'm writing my own annotation processor and I'm trying to get parameter of my annotation like in the code below in process method: roundEnv.getElementsAnnotatedWith(annotation).forEach { val annotation = it.getAnnotation(annotation) annotation.interfaces } What I get is An exception occurred: javax.lang.model.type.MirroredTypesException: Attempt to access Class objects for TypeMirrors [] during build. Anyone know how to get annotation data?

Parameter missing when connecting RecycleRview adapter to fragment I'm trying to associate my RecyclerView adapter with a fragment but it is expecting another parameter at the adapter creation stage. I understand that something to do with fm needs to be included in the parameter but I'm not sure what I need to go there. A red underline appears at the end of val mAdapter = RVAdapterFacilities(facilitiesList) and the following error is returned: No value passed for parameter 'fm' RecyclerView adapter class class MyRVAdapter(private val myList:...

String.split not compiling in Kotlin? Driving me crazy! I have the following simple snippet of code: val text = "hello" val splitStr = "l" text.split(splitStr, false, 1) But there is a compile error on the third line. It says: None of the functions can be called with the arguments supplied. Even though there is a split method in Strings.kt that takes these args: public fun CharSequence.split(vararg delimiters: String, ignoreCase: Boolean = false, limit: Int = 0): List = rangesDelimitedBy(delimiters, ignoreCase =...

Android/Kotlin - local BroadcastReceiver is never activated by DownloadManager I'm trying to detect when a DownloadManager download is completed. Unfortunately, the local BroadcastReceiver I'm trying to use for that never gets called. I have seen multiple similar questions, but none solved my problem; also, if the BroadcastReceiver isn't local but declared in the manifest it DOES get called, so I don't think it's an issue with the DownloadManager. I can't use an external BroadcastReceiver because I need to update the UI (more specifically, open another activity) when...