how can reduce video size during record, Video size reduce At that time Android? ffmpeg, mediacodec, and mp4parser code size is larger, so is there any other way to reduce size of video at time of recording if it possible. i also tried this libraries: Thanks

Do I need to use @Repository when I only use JdbcTemplate in my DAO class? Assume I have the following Dao Class: class MyDao(val em: EntityManager) { fun query() { // since nonExistTable doesn't exist, it will throw an exception val createNativeQuery = em.createNativeQuery("SELECT * FROM nonExistTable"); var e = createNativeQuery.singleResult println(e) } } When I try to execute the query, It will produce java.sql.SQLSyntaxErrorException if I annotate the class with @Component and...

Can `SendChannel.offer`, `CompletableDeferred.complete`, and similar be called outside coroutines? CompletableDeferred documentation says All functions on this interface and on all interfaces derived from it are thread-safe and can be safely invoked from concurrent coroutines without external synchronization. Is it safe to call these functions outside any coroutine? For SendChannel, offer and close are not suspend and so they can be called outside coroutines syntactically, but is it actually safe to do so? If a coroutine is needed, what is the cheapest way to start one:...

Fuel TimeOut Connection hey guys i have an issue with an app I am working on, especially on Galaxy 6 What the app needs to do is to send a server request once a cann recieved or created therefor I am useing a BroadcastReceiver() which recieves the calls using intent.action == "android.intent.action.NEW_OUTGOING_CALL" statement and if its not true tn e it means call has been recieved, anyway my issue is that whenever a Call is recieved or started, My Fuel post Request most of the time getting timed out error...

How to run suspend method via reflection? There is an coroutine block that can runs suspend functions. But I call the function by invoke via reflection. This is java style invocation, apparently a simple call will not work. Are there ways to run reflected method asynchronously? How to await this method? import kotlin.coroutines.experimental.* class TestClass(val InString: String) { suspend fun printString() { println(InString) } } fun launch(context: CoroutineContext, block: suspend () -> Unit) =...

How best to wait until the actor stops in kotlinx.coroutines 0.20? In kotlinx.coroutines 0.19, actor returns ActorJob which can be joined: val myActor = actor { ... } ... myActor.join() In 0.20, it's changed to return SendChannel. Looking at the implementation, it does still return an instance of a class which extends Job, so I could write ... (myActor as Job).join() but this is an obvious code smell. Is there a better alternative?

Can't find referenced class kotlin.internal.annotations.AvoidUninitializedObjectCopyingCheck When ProGuard is enabled for an Android project with Kotlin, the Gradle build fails with the following error: Warning: HomeChargerLocation: can't find referenced class kotlin.internal.annotations.AvoidUninitializedObjectCopyingCheck Warning: HomeChargerLocation$Address: can't find referenced class kotlin.internal.annotations.AvoidUninitializedObjectCopyingCheck Warning: HomeChargerLocation$Address$Creator: can't find referenced class...

How to handle accessibility in custom view when it is not designed for handling clicks? I've written a chessboard component in android, by subclassing view. It only process drag and drop from user. But Android Studio complains about the fact that performClick is not handled for this view, so that accessibility is not handled correctly. But as I manage Dnd and not a simple click, how to resolve this problem ? In fact, I am just overriding onTouchEvent, managing ACTION_DOWN, ACTION_MOVE and ACTION_UP. But I can't see how to adapt the code for onPerformClick.

Building a Kotlin + Java 9 project with Gradle I'm fairly new to Gradle (and Java 9, to be honest), and I'm trying to use Gradle to build a simple library project that is a mix of Java 9 and Kotlin. More in detail, there is an interface in Java and an implementation in Kotlin; I'd do everything in Kotlin, but the modules-info.java is java anyway, so I decided to do things this way. I'm building on IntelliJ Idea, with the 1.2.0 kotlin plugin and gradle 4.3.1 defined externally. Filesystem schema is: + src + main + java +...

how is the '*' used in dereferrence from array in kotlin? Looking at one of the kaitlin sample from https://github.com/googlesamples/android-topeka/ see the ‘*’ is to used for getting the first element from an array, does anyone know from where it is explained? val pairs = TransitionHelper.createSafeTransitionParticipants(activity, true, Pair(v, activity.getString(R.string.transition_avatar))) val options =...

java.lang.NoClassDefFoundError in Kotlin I don't know what error means but it was working well yesterday now i don't know what is cause for error. Error log when trying to run Errorjava.lang.IllegalStateException java.lang.NoClassDefFoundError: org/jetbrains/kotlin/codegen/AnnotationCodegen$5 at org.jetbrains.kotlin.codegen.CompilationErrorHandler.lambda$static$0(CompilationErrorHandler.java:24) at org.jetbrains.kotlin.codegen.PackageCodegenImpl.generate(PackageCodegenImpl.java:74) at...

Not able to use kotlin library I am trying to use this library for my app but as it is made in kotlin I am facing the problem . I downloaded the module of this library and imported this module in the project but in the initial state i am gettin kotlin plugin not found so i changed the gradel as this apply plugin:...

How to modify an ObservableList using Kotlin coroutines? It tells me to use main thread I have this simple code that I call on the main thread: fun load() = async { try { var resp = Api.getSomething().await() // github / kotlin-coroutines-retrofit list.addAll(resp) } catch (e: Exception) { /* IT'S THROWING java.lang.IllegalStateException: You must only modify the ObservableList on the main thread. */ } } The result is fine but when I try to add to the list it throws this exception: java.lang.IllegalStateException:...

How to keep the reference of the singleton class object in the companion object, Kotlin The code that I want to convert is the following; public class AndroidLauncher extends AndroidApplication { public static AndroidLauncher androidLauncher; @Override protected void onCreate (Bundle savedInstanceState) { super.onCreate(savedInstanceState); androidLauncher = this; } } What android studio generated code is this; class AndroidLauncher : AndroidApplication() { protected override fun onCreate(savedInstanceState: Bundle?) {...

How to convert const char* to KString in Kotlin/Native? In a C++ file, I want to convert a const char* to KString, so that I can then pass the KString to a Kotlin file using Kotlin/Native. I believe the answer lies in the function OBJ_GETTER(utf8ToUtf16, const char* rawString, size_t rawStringLength) that I found in KString.cpp. But...

How to implement a lazy property in Kotlin that requires another property? I need a rectangle that needs to be initialized on call. Here is my code; class EpheButton private constructor( private val text: String, private val x: Float, private val y: Float, private val projectionMatrix: Matrix4) : Disposable { private val spriteBatch: SpriteBatch = SpriteBatch() private val bitmapFont: BitmapFont = BitmapFont() private val shapeRenderer: ShapeRenderer = ShapeRenderer() private val textWidth: Float private val textHeight: Float private val rectangle...

unit test with apache storm and cassandra: local topology not consuming message from kafka I have a unit/integration test set up to publish events to a Kafka queue. I also have a local storm topology that is set up to consume events in the kafka queue, do some transformation in a bolt and then save it to cassandra database. The test is set up like the following: class StormPersistorTest{ lateinit var cluster: LocalCluster private val zk = ZookeeperHelper() @Before fun setup() { cluster = runBlocking { // same code as in main function val localCluster =...

Dagger with Mvp on Kotlin - Android I am an Android developer that is just getting into Kotlin, and I have been trying to setup an Mvp Dagger application in Kotlin, but I cannot figure out what is going on. I continue to get this error: Error:dagger.internal.codegen.ComponentProcessor was unable to process this interface because not all of its dependencies could be resolved. Check for compilation errors or a circular dependency with generated code. Here is my code: KotlinApplication: class KotlinApplication:...

How to implement Animation like saavan music player Android? How to implement Animation like saavan music player in Andorid When we Scroll up Recycler view then Horizontal view should shrink and Scroll Down then View should resize with animation Thanks

how can i compress video programmatically or any light weight library and without using ffmpeg library in android Compress video in faster way without using ffmpeg , media codec api, mp4 parser,if there is any faster and light weight library is available, Please help me out. Thanks

Property getter simplification via delegation I have many properties that follow this pattern, basically the only things that change from the template below are: the initialized value the property name code var foo: Double = 0.0 get() { update() return field } var foo2: Double = 1.23 get() { update() return field } question is there any way that I can use delegation to to simplify (reduce the verbosity of) the code?

gradle plugin with kotlin - set boolean extension property I am trying to migrate a gradle plugin from groovy to kotlin. I have a boolean Property that I would like to initialize to false in my plugin extension: open class MyPluginExtension(project: Project) { val myBooleanProperty: Property = project.objects.property(Boolean::class.java) init { myBooleanProperty.set(false) } } This fails with java.lang.IllegalArgumentException: Cannot set the value of a property of type boolean using an instance of type java.lang.Boolean....

How to access a view from layout specified in headerLayout of NavigationView using Kotlin in Android I want to access a TextView which is included inside headerLayout of NavigationView. Is it possible to access the view using Kotlin android extension? I did using this method, but the TextView (here txtName) is always null. Here is my activity_main.xml nav_header_splash.xml in my Activity class I have imported import kotlinx.android.synthetic.main.nav_header_splash.* in onCreate() of Activity class I set text like txtName.text = "Sample Code" build.gradle of app folder apply...

Kotlin Intent error I have the following code and am getting an error with the Intent. It is because of the this I am fairly certain. listView.onItemClickListener = object : OnItemClickListener { override fun onItemClick(parent: AdapterView, view: View, position: Int, id: Long) { val intent = Intent(this, MyActivity::class.java) startActivity(intent) } }

unable to dismiss Progress dilog using dismiss method in android class CShowProgress(context: Context) { var s_m_oCShowProgress: CShowProgress? = null lateinit var m_Dialog: Dialog private var m_ProgressBar: ProgressBar? = null private var progressText: TextView? = null fun getInstance(): CShowProgress { if (s_m_oCShowProgress == null) { s_m_oCShowProgress = CShowProgress(context!!) } return s_m_oCShowProgress as CShowProgress } fun show(m_Context: Context, message: String) {...

Android Kotlin how to check checkbox in multiple choice list view I have a multiple choice list view. I wanting to check some of the checkboxes but not all of them. I am trying the code below but not sure where to go from there, or if that is even a start. val listView = findViewById(R.id.mylist_listview) val values = arrayOf("One", "Two", "Three") val list = ArrayList() for (i in values.indices) { list.add(values[i]) } val adapter = ArrayAdapter(this,...

Dagger 2 ContributesAndroidInjector provide activity to module I'm trying to figure out a less-boilerplate-y way to implement an ActivityModule that is used in all of my app activities. This is my current setup: ActivityModule: @Module class ActivityModule(private val activity: Activity) { @Provides @ActivityScope fun providesActivity(): Activity = activity @Provides @ActivityContext @ActivityScope fun providesContext(): Context = activity @Provides @ActivityContext @ActivityScope fun providesLayoutInflater(): LayoutInflater...

Merge text to image in android studio My question is how i can add text to picture after is captured from camera ? Specifically how adding text to picture So that the text becomes printed in the image itself ? More specific text is added in place of the image itself and becomes compact in it ? in android studio .I need the code or the way to do it . and thanks you .

FragmentStatePagerAdapter for Nested Pager (in fragment from bottom navigation) is Empty I'm working on a calendar in my app and i'm using a FragmentStatePagerAdapter to provide data to the ViewPager (1 month = one page) The problem is that when i come back from an other fragment from my bottom navigation, the pager is empty. Here is my code : class AgendaFragment: Fragment() { internal var mAdapter: CustomPagerAdapter2? = null var selectedDate = Date() companion object { var frag: AgendaFragment? = null val fragments = ArrayList() fun...

Is it possible to run kotlin grade plugin using jdk 7 My project uses jdk 7 for compatibility reasons. bottom portion of build.gradle buildscript { ext.kotlin_version = '1.2.0' repositories { mavenCentral() } dependencies { classpath "org.jetbrains.kotlinkotlin gradle plugin$kotlin_version" } } When I use jdk 7 for grade jam, I get this: java.lang.UnsupportedClassVersionError: org/jetbrains/kotlin/gradle/KotlinGradleModel : Unsupported major.minor version 52.0 at...