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package com.coroutines.basics import androidx.test.platform.app.InstrumentationRegistry import androidx.test.ext.junit.runners.AndroidJUnit4 import org.junit.Test import org.junit.runner.RunWith import org.junit.Assert.* /** * Instrumented test, which will execute on an Android device. * * See [testing documentation](http://d.android.com/tools/testing). */ @RunWith(AndroidJUnit4::class) class ExampleInstrumentedTest { @Test fun useAppContext() { // Context of the app under test. val appContext = InstrumentationRegistry.getInstrumentation().targetContext assertEquals("com.coroutines.basics.test", appContext.packageName) } }
coroutine-ultimate-guild/basics/src/androidTest/java/com/coroutines/basics/ExampleInstrumentedTest.kt
3305147041
package com.coroutines.basics import org.junit.Test import org.junit.Assert.* /** * Example local unit test, which will execute on the development machine (host). * * See [testing documentation](http://d.android.com/tools/testing). */ class ExampleUnitTest { @Test fun addition_isCorrect() { assertEquals(4, 2 + 2) } }
coroutine-ultimate-guild/basics/src/test/java/com/coroutines/basics/ExampleUnitTest.kt
2139709810
package com.coroutines.basics.coroutineContext import kotlin.coroutines.CoroutineContext class CoroutineContextProviderImpl( private val context: CoroutineContext, ) : CoroutineContextProvider { override fun context(): CoroutineContext { return context } }
coroutine-ultimate-guild/basics/src/main/java/com/coroutines/basics/coroutineContext/CoroutineContextProviderImpl.kt
3800828522
package com.coroutines.basics.coroutineContext import kotlin.coroutines.CoroutineContext interface CoroutineContextProvider { fun context(): CoroutineContext }
coroutine-ultimate-guild/basics/src/main/java/com/coroutines/basics/coroutineContext/CoroutineContextProvider.kt
190500094
package com.coroutines.basics.coroutineContext import kotlinx.coroutines.CoroutineExceptionHandler import kotlinx.coroutines.Dispatchers import kotlinx.coroutines.GlobalScope import kotlinx.coroutines.Job import kotlinx.coroutines.launch fun main() { val defaultDispatcher = Dispatchers.Default // 1- first element of coroutine context val coroutineErrorHandler = CoroutineExceptionHandler { context, error -> println("Problem with coroutine: $error") } // 2- second element of coroutine context val emptyParentJob = Job() // 3- third element of coroutine context val combinedContext = defaultDispatcher + coroutineErrorHandler + emptyParentJob GlobalScope.launch(context = combinedContext) { println(Thread.currentThread().name) } Thread.sleep(50) // context provider val parentJob = Job() val provider: CoroutineContextProvider = CoroutineContextProviderImpl(context = parentJob + Dispatchers.IO) GlobalScope.launch(context = provider.context()) { println(Thread.currentThread().name) } Thread.sleep(50) }
coroutine-ultimate-guild/basics/src/main/java/com/coroutines/basics/coroutineContext/CoroutineContext.kt
1613379237
package com.coroutines.basics.contextSwitch import kotlinx.coroutines.Dispatchers import kotlinx.coroutines.GlobalScope import kotlinx.coroutines.asCoroutineDispatcher import kotlinx.coroutines.launch import java.util.concurrent.Executors fun main() { GlobalScope.launch { // emptyCoroutineContext println("This is a coroutine") } Thread.sleep(50) GlobalScope.launch { // print the name of current thread aka DefaultDispatcher println(Thread.currentThread().name) } Thread.sleep(50) GlobalScope.launch(context = Dispatchers.Default) { // printing the same as previous one println(Thread.currentThread().name) } Thread.sleep(50) GlobalScope.launch(context = Dispatchers.Unconfined) { // which dispatcher is Unconfined running on? println(Thread.currentThread().name) } Thread.sleep(50) // creating a new work-stealing executor for executing a sample task : val executorDispatcher = Executors.newWorkStealingPool().asCoroutineDispatcher() GlobalScope.launch(context = executorDispatcher) { println(Thread.currentThread().name) } Thread.sleep(50) }
coroutine-ultimate-guild/basics/src/main/java/com/coroutines/basics/contextSwitch/ContextSwitch.kt
1481746173
package com.coroutines.basics.suspensionConcept import com.coroutines.basics.api.executeBackground import com.coroutines.basics.api.executeMain import com.coroutines.basics.api.getValue import kotlinx.coroutines.Dispatchers import kotlinx.coroutines.GlobalScope import kotlinx.coroutines.delay import kotlinx.coroutines.launch import kotlinx.coroutines.withContext import kotlin.concurrent.thread fun main() { getUserFromNetworkCallback("202") { user, error -> user?.run(::println) error?.printStackTrace() } println("main end") /** * suspending */ executeBackground { val user = getUserStandard("101") executeMain { println(user) } } Thread.sleep(1500) executeBackground { val user = getValue { getUserStandard("101") } executeMain { println(user) } } /**\ * with context */ GlobalScope.launch(Dispatchers.Main) { val user = getUserSuspended("101") println(user) } } private fun getUserStandard(userId: String): SuspendUser { Thread.sleep(1000) return SuspendUser(userId, "Filip") } private fun getUserFromNetworkCallback( userId: String, onUserResponse: (SuspendUser?, Throwable?) -> Unit, ) { thread { try { Thread.sleep(1000) val user = SuspendUser(userId, "Filip") onUserResponse(user, null) } catch (error: Throwable) { onUserResponse(null, error) } } println("end") } private suspend fun getUserSuspended(userId: String): SuspendUser = withContext(Dispatchers.Default) { delay(1000) SuspendUser(userId, "Filip") } internal data class SuspendUser( val id: String, val name: String, )
coroutine-ultimate-guild/basics/src/main/java/com/coroutines/basics/suspensionConcept/SuspendVsNonSuspend.kt
3765184954
package com.coroutines.basics.suspensionConcept import kotlinx.coroutines.CoroutineStart import kotlinx.coroutines.Dispatchers import kotlinx.coroutines.GlobalScope import kotlinx.coroutines.delay import kotlinx.coroutines.launch fun main() { mainDispatcherFun() } fun coroutineBuilder() { (1..10000).forEach { GlobalScope.launch { val threadName = Thread.currentThread().name println("$it printed on thread $threadName") } Thread.sleep(1000) } } fun delayFun() { GlobalScope.launch { println("Hello coroutine!") delay(500) println("Right back at ya!") } Thread.sleep(1000) } fun jobFun() { val job1 = GlobalScope.launch(start = CoroutineStart.LAZY) { delay(200) println("Pong") delay(200) } GlobalScope.launch { delay(200) println("Ping") job1.join() println("Ping") delay(200) } Thread.sleep(1000) } fun jobHierarchy() { with(GlobalScope) { val parentJon = launch { delay(200) println("Im the parent") delay(200) } launch(context = parentJon) { delay(200) println("Im a child") delay(200) } if (parentJon.children.iterator().hasNext()) { println("The job has children!") } else { println("th job has no children") } Thread.sleep(1000) } } fun standardFunWithCoroutine() { var isDoorOpen = false println("Unlocking the door ... please wait.\n") GlobalScope.launch { delay(3000) isDoorOpen = true } GlobalScope.launch { repeat(4) { println("Trying to open the door... \n") delay(800) if (isDoorOpen) { println("Opened the door! \n") } else { println("The door is still locked \n") } } } Thread.sleep(5000) } fun mainDispatcherFun() { GlobalScope.launch { val bigThreadName = Thread.currentThread().name println("Im Job 1 thread $bigThreadName") delay(200) GlobalScope.launch(Dispatchers.Main) { val uiThreadName = Thread.currentThread().name println("Im Job 2 in thread $uiThreadName") } } Thread.sleep(1000) }
coroutine-ultimate-guild/basics/src/main/java/com/coroutines/basics/suspensionConcept/MainHolder.kt
2020834145
package com.coroutines.basics.asyncAwait import kotlinx.coroutines.CoroutineScope import kotlinx.coroutines.async import kotlinx.coroutines.delay import kotlinx.coroutines.isActive import kotlinx.coroutines.launch import java.io.File fun main() { val userId = 992 val scope = CustomScope() /** * * callback pattern getUserByIdFromNetwork(userId) { user -> println(user) } */ /** * Async/Await pattern GlobalScope.launch { val userData = getUserByIdFromNetwork(userId) println(userData.await()) } Thread.sleep(5000) */ scope.launch { println("Finding user") val userDeferred = getUserByIdFromNetwork(userId, scope) // deferred number one val usersFromFileDeferred = readUsersFromFile("basics/users.txt", scope) // deferred number two val userStoredInFile = checkUserExists( userDeferred.await(), usersFromFileDeferred.await(), ) // combining two deferred if (userStoredInFile) { println("Found user in file") } } scope.onStop() } private fun getUserByIdFromNetworkThread(userId: Int, onUserReady: (AsyncUser) -> Unit) { Thread.sleep(3000) onUserReady(AsyncUser(userId, "Filip", "Babic")) } private fun getUserByIdFromNetwork(userId: Int, scope: CoroutineScope) = scope.async { if (!isActive) { return@async AsyncUser(0, "", "") } println("Retrieving user from network") delay(3000) AsyncUser(userId, "Filip", "Babic") } private fun readUsersFromFile(filePath: String, scope: CoroutineScope) = scope.async { println("Reading the file of users") delay(1000) File(filePath) .readLines() .asSequence() .filter { it.isNotEmpty() } .map { val data = it.split(" ") // makes it : [id, name, lastName] if (data.size == 3) data else emptyList() } .filter { it.isNotEmpty() } .map { val userId = it[0].toInt() val name = it[1] val lastName = it[2] AsyncUser(userId, name, lastName) } .toList() } private fun checkUserExists(user: AsyncUser, users: List<AsyncUser>): Boolean { return user in users } internal data class AsyncUser( val userId: Int, val name: String, val lastName: String, )
coroutine-ultimate-guild/basics/src/main/java/com/coroutines/basics/asyncAwait/AsyncAwaitPattern.kt
3522808966
package com.coroutines.basics.asyncAwait import kotlinx.coroutines.CoroutineScope import kotlinx.coroutines.Dispatchers import kotlinx.coroutines.Job import kotlin.coroutines.CoroutineContext class CustomScope : CoroutineScope { private var parentJob = Job() override val coroutineContext: CoroutineContext get() = Dispatchers.Main + parentJob fun onStart() { parentJob = Job() } fun onStop() { parentJob.cancel() // You can also cancel the whole scope // with `cancel(cause: CancellationException)` } }
coroutine-ultimate-guild/basics/src/main/java/com/coroutines/basics/asyncAwait/CustomScope.kt
3642826767
package com.coroutines.basics.api import kotlinx.coroutines.Dispatchers import kotlinx.coroutines.GlobalScope import kotlinx.coroutines.launch import kotlin.coroutines.suspendCoroutine suspend fun <T : Any> getValue(provider: () -> T): T = suspendCoroutine { continuation -> continuation.resumeWith(Result.runCatching { provider() }) } fun executeBackground(action: suspend () -> Unit) { GlobalScope.launch { action() } } fun executeMain(action: suspend () -> Unit) { GlobalScope.launch(context = Dispatchers.Main) { action() } }
coroutine-ultimate-guild/basics/src/main/java/com/coroutines/basics/api/SuspendableApis.kt
1121540676
package com.coroutines.basics.exceptionHandling import kotlinx.coroutines.DelicateCoroutinesApi import kotlinx.coroutines.GlobalScope import kotlinx.coroutines.async import kotlinx.coroutines.launch import kotlinx.coroutines.runBlocking @OptIn(DelicateCoroutinesApi::class) fun main() = runBlocking { val launchJob = GlobalScope.launch { println("1. Exception created via launch coroutine") throw IndexOutOfBoundsException() } launchJob.join() println("2. Joined failed job") val deferred = GlobalScope.async { println("3. Exception created via async coroutine") throw ArithmeticException() } try { deferred.await() println("4. Unreachable, this statement is never executed") } catch (e: Exception) { println("5. Caught ${e.javaClass.simpleName}") } }
coroutine-ultimate-guild/basics/src/main/java/com/coroutines/basics/exceptionHandling/ExceptionHandling.kt
1590497076
package com.coroutines.basics.exceptionHandling import kotlinx.coroutines.async import kotlinx.coroutines.runBlocking import kotlinx.coroutines.supervisorScope import java.lang.IllegalStateException fun main() = runBlocking { supervisorScope { // exception wont propagate upward val result = async { println("Throwing exception in async") throw IllegalStateException() } try { result.await() } catch (e: Exception) { println("Caught $e") } } }
coroutine-ultimate-guild/basics/src/main/java/com/coroutines/basics/exceptionHandling/SupervisorScope.kt
1106112676
package com.coroutines.basics.exceptionHandling import kotlinx.coroutines.CancellationException import kotlinx.coroutines.CoroutineScope import kotlinx.coroutines.SupervisorJob import kotlinx.coroutines.cancel import kotlinx.coroutines.delay import kotlinx.coroutines.launch import kotlinx.coroutines.runBlocking fun main() = runBlocking { val supervisor = SupervisorJob() with(CoroutineScope(coroutineContext + supervisor)) { val firstChild = launch { println("First child throwing an exception") throw ArithmeticException() } val secondChild = launch { println("first child is cancelled: ${firstChild.isCancelled}") try { delay(5000) } catch (e: CancellationException) { println("Second child canelled because supervisor got cancelled.") } } firstChild.join() supervisor.cancel() secondChild.join() } }
coroutine-ultimate-guild/basics/src/main/java/com/coroutines/basics/exceptionHandling/SupervisorJob.kt
2109514013
package com.coroutines.basics.exceptionHandling import kotlinx.coroutines.runBlocking import kotlinx.coroutines.suspendCancellableCoroutine import java.io.IOException fun main() { runBlocking { try { val data = getDataAsync() println("Data received $data") } catch (e: Exception) { println("Caught ${e.javaClass.simpleName}") } } } suspend fun getDataAsync(): String { // callback wrapping using coroutine return suspendCancellableCoroutine { continuation -> getData(object : AsyncCallback { override fun onSuccess(result: String) { continuation.resumeWith(Result.success(result)) } override fun onError(e: Exception) { continuation.resumeWith(Result.failure(e)) } }) } } fun getData(asyncCallback: AsyncCallback) { // Flag used to trigger an exception val triggerError = false try { // Delaying the thread for 3 seconds Thread.sleep(3000) if (triggerError) { throw IOException() } else { // Send success asyncCallback.onSuccess("[Beep.Boop.Beep]") } } catch (e: Exception) { // send error asyncCallback.onError(e) } } // Callback interface AsyncCallback { fun onSuccess(result: String) fun onError(e: Exception) }
coroutine-ultimate-guild/basics/src/main/java/com/coroutines/basics/exceptionHandling/CallbackWrapping.kt
3584767110
package com.coroutines.basics.exceptionHandling import kotlinx.coroutines.CoroutineExceptionHandler import kotlinx.coroutines.GlobalScope import kotlinx.coroutines.delay import kotlinx.coroutines.launch import kotlinx.coroutines.runBlocking import java.lang.IllegalStateException fun main() = runBlocking { val handler = CoroutineExceptionHandler { _, exception -> println( "Caught $exception with suppressed " + exception.suppressed.contentToString(), ) } // parent job val parentJob = GlobalScope.launch(handler) { // child job 1 launch { try { delay(Long.MAX_VALUE) } catch (e: Exception) { println("${e.javaClass.simpleName} in Child job 1") } finally { throw ArithmeticException() } } // child job 2 launch { delay(100) throw IllegalStateException() } delay(Long.MAX_VALUE) // delaying the parent } parentJob.join() }
coroutine-ultimate-guild/basics/src/main/java/com/coroutines/basics/exceptionHandling/ExceptionHandlingForChild.kt
1824012463
package com.coroutines.basics.exceptionHandling import kotlinx.coroutines.DelicateCoroutinesApi import kotlinx.coroutines.GlobalScope import kotlinx.coroutines.async import kotlinx.coroutines.runBlocking @OptIn(DelicateCoroutinesApi::class) fun main() { runBlocking { val callAwaitOnDeferred = false // true val deferred = GlobalScope.async { println("Throwing exception from async") throw ArithmeticException("Something went wrong") } if (callAwaitOnDeferred) { try { deferred.await() } catch (e: ArithmeticException) { println("Caught Arithmetic Exception") } } } }
coroutine-ultimate-guild/basics/src/main/java/com/coroutines/basics/exceptionHandling/TryCatchExamination.kt
3639442711
package com.coroutines.basics.exceptionHandling import kotlinx.coroutines.CoroutineExceptionHandler import kotlinx.coroutines.DelicateCoroutinesApi import kotlinx.coroutines.GlobalScope import kotlinx.coroutines.async import kotlinx.coroutines.joinAll import kotlinx.coroutines.launch import kotlinx.coroutines.runBlocking @OptIn(DelicateCoroutinesApi::class) fun main() { runBlocking { val exceptionHandler = CoroutineExceptionHandler { coroutineContext, exception -> println("Caught $exception") } val job = GlobalScope.launch(exceptionHandler) { throw AssertionError("My Custom Assertion Error!") } val deferred = GlobalScope.async(exceptionHandler) { throw ArithmeticException() } joinAll(job, deferred) } }
coroutine-ultimate-guild/basics/src/main/java/com/coroutines/basics/exceptionHandling/GlobalExceptionHandler.kt
1262051939
package com.coroutines.advanced import androidx.test.platform.app.InstrumentationRegistry import androidx.test.ext.junit.runners.AndroidJUnit4 import org.junit.Test import org.junit.runner.RunWith import org.junit.Assert.* /** * Instrumented test, which will execute on an Android device. * * See [testing documentation](http://d.android.com/tools/testing). */ @RunWith(AndroidJUnit4::class) class ExampleInstrumentedTest { @Test fun useAppContext() { // Context of the app under test. val appContext = InstrumentationRegistry.getInstrumentation().targetContext assertEquals("com.coroutines.advanced.test", appContext.packageName) } }
coroutine-ultimate-guild/advanced/src/androidTest/java/com/coroutines/advanced/ExampleInstrumentedTest.kt
3821889850
package com.coroutines.advanced import com.coroutines.advanced.coroutineTest.contextProvider.CoroutineContextProviderImpl import com.coroutines.advanced.coroutineTest.presentation.MainPresenter import com.coroutines.advanced.coroutineTest.view.MainView import junit.framework.TestCase.assertEquals import junit.framework.TestCase.assertNull import kotlinx.coroutines.ExperimentalCoroutinesApi import kotlinx.coroutines.async import kotlinx.coroutines.delay import kotlinx.coroutines.test.StandardTestDispatcher import kotlinx.coroutines.test.TestScope import kotlinx.coroutines.test.advanceUntilIdle import kotlinx.coroutines.test.runTest import org.junit.Test class MainViewTest { // test coroutineScope and coroutineContext private val testCoroutineDispatcher = StandardTestDispatcher() // helps coroutines run immediately private val testCoroutineScope = TestScope(testCoroutineDispatcher) // expose all functions to control the CoroutineDispatcher private val testCoroutineContextProvider = CoroutineContextProviderImpl(testCoroutineDispatcher) private val mainPresenter by lazy { MainPresenter() } private val mainView by lazy { MainView(mainPresenter, testCoroutineContextProvider, testCoroutineScope) } @OptIn(ExperimentalCoroutinesApi::class) @Test fun testFetchUserData(): Unit = testCoroutineScope.runTest { // arrange: initial state assertNull(mainView.userData) // act: updating the state mainView.fetchUserData() // advance the time to make test pass : // advanceTimeBy(1010) : this works and advanceUntilIdle works just fine too! advanceUntilIdle() // assert: checking the new state, and printing it out assertEquals("Filip", mainView.userData?.name) mainView.printUserData() } @Test fun exampleTest() = runTest { // acts like runBlocking but instead of actually delaying the time, it advances the test time val deferred = async { delay(1_000) async { delay(1_000) }.await() } deferred.await() } }
coroutine-ultimate-guild/advanced/src/test/java/com/coroutines/advanced/MainViewTest.kt
3360455623
package com.coroutines.advanced.coroutinesInAndroid.ui.viewmodel import androidx.lifecycle.ViewModel import com.coroutines.advanced.coroutinesInAndroid.data.model.DisneyCharacter import com.coroutines.advanced.coroutinesInAndroid.data.repository.DisneyRepository import com.coroutines.advanced.coroutinesInAndroid.di.DependencyHolder import kotlinx.coroutines.flow.MutableStateFlow import kotlinx.coroutines.flow.StateFlow class DisneyViewModel : ViewModel() { // private val disneyRepo: DisneyRepository by lazy { DependencyHolder.disneyRepository } private val _uiState = MutableStateFlow(emptyList<DisneyCharacter>()) val uiState: StateFlow<List<DisneyCharacter>> get() = _uiState init { getDisneyCharacters() } private fun getDisneyCharacters() { // Add the implementation here } }
coroutine-ultimate-guild/advanced/src/main/java/com/coroutines/advanced/coroutinesInAndroid/ui/viewmodel/DisneyViewModel.kt
2906007836
package com.coroutines.advanced.coroutinesInAndroid.ui.activity import android.content.Context import android.content.Intent import android.os.Bundle import android.view.View import android.view.animation.AnimationUtils import androidx.appcompat.app.AppCompatActivity import androidx.lifecycle.lifecycleScope import androidx.recyclerview.widget.LinearLayoutManager import androidx.recyclerview.widget.RecyclerView import com.coroutines.advanced.R import com.coroutines.advanced.coroutinesInAndroid.data.model.DisneyCharacter import com.coroutines.advanced.coroutinesInAndroid.ui.adapter.list.DisneyAdapter import com.coroutines.advanced.databinding.ActivityNetworkingBinding import kotlinx.coroutines.Dispatchers import kotlinx.coroutines.launch import kotlinx.coroutines.withContext class DisneyActivity : AppCompatActivity() { private lateinit var binding: ActivityNetworkingBinding private val adapter by lazy { DisneyAdapter() } override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) binding = ActivityNetworkingBinding.inflate(layoutInflater) setContentView(binding.root) initUi() binding.startProcessing.setOnClickListener { fetchDisneyCharacters() } } private fun initUi() { startLoadingAnimation() binding.characterList.adapter = adapter binding.characterList.layoutManager = LinearLayoutManager(this, RecyclerView.VERTICAL, false) } private fun startLoadingAnimation() { val animation = AnimationUtils.loadAnimation(this, R.anim.rotate_indefinitely) binding.loadingAnimation.startAnimation(animation) } private fun showResults(characters: List<DisneyCharacter>) = with(binding) { characterList.visibility = View.VISIBLE uiProcessingContainer.visibility = View.GONE adapter.setData(characters) } private fun fetchDisneyCharacters() { // Create a new coroutine in the scope tied to the lifecycle of the Activity lifecycleScope.launch(Dispatchers.IO) { // Make the network request on a background thread runCatching { } .onSuccess { // Switch to the main thread to show the results withContext(Dispatchers.Main) { } } .onFailure { it.printStackTrace() } } } companion object { fun start(from: Context) = from.startActivity(Intent(from, DisneyActivity::class.java)) } }
coroutine-ultimate-guild/advanced/src/main/java/com/coroutines/advanced/coroutinesInAndroid/ui/activity/DisneyActivity.kt
2884256706
package com.coroutines.advanced.coroutinesInAndroid.ui.activity import android.content.Context import android.content.Intent import android.os.Bundle import android.os.Handler import android.os.HandlerThread import android.os.Looper import android.view.View import android.view.animation.AnimationUtils import androidx.activity.ComponentActivity import androidx.lifecycle.lifecycleScope import androidx.recyclerview.widget.LinearLayoutManager import androidx.recyclerview.widget.RecyclerView import com.coroutines.advanced.R import com.coroutines.advanced.coroutinesInAndroid.ui.activity.ProcessingMethod.* import com.coroutines.advanced.coroutinesInAndroid.ui.adapter.list.DisneyAdapter import com.coroutines.advanced.databinding.ActivityBackgroundProcessingBinding import com.coroutines.advanced.coroutinesInAndroid.data.model.DisneyCharacter import com.coroutines.advanced.coroutinesInAndroid.di.DependencyHolder import io.reactivex.rxjava3.android.schedulers.AndroidSchedulers import io.reactivex.rxjava3.core.Single import io.reactivex.rxjava3.disposables.Disposable import io.reactivex.rxjava3.schedulers.Schedulers import kotlinx.coroutines.Dispatchers import kotlinx.coroutines.Runnable import kotlinx.coroutines.launch import kotlinx.coroutines.withContext import java.util.concurrent.Executors enum class ProcessingMethod { MAIN_THREAD, THREAD, HANDLER, HANDLER_THREAD, EXECUTOR, RX_JAVA, COROUTINES } class BackgroundProcessingActivity : ComponentActivity() { // Change this variable in order to change the processing method private var processingMethod: ProcessingMethod = THREAD private lateinit var binding: ActivityBackgroundProcessingBinding private var handlerThread: HandlerThread? = null private val getCharactersRunnable by lazy { GetCharactersRunnable() } private val adapter by lazy { DisneyAdapter() } private var disposable: Disposable? = null override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) binding = ActivityBackgroundProcessingBinding.inflate(layoutInflater) setContentView(binding.root) initUi() startLoadingAnimation() setClickListeners() } private fun initUi() = with(binding) { startLoadingAnimation() currentProcessingMethod.text = "Processing method: ${processingMethod.name}" characterList.adapter = adapter characterList.layoutManager = LinearLayoutManager( this@BackgroundProcessingActivity, RecyclerView.VERTICAL, false, ) } private fun startLoadingAnimation() { val animation = AnimationUtils.loadAnimation(this, R.anim.rotate_indefinitely) binding.loadingAnimation.startAnimation(animation) } private fun setClickListeners() { binding.startProcessing.setOnClickListener { startProcessing() } } private fun startProcessing() { when (processingMethod) { MAIN_THREAD -> runUiBlockingProcessing() THREAD -> runProcessingWithThread() HANDLER -> runProcessingWithHandler() HANDLER_THREAD -> runProcessingWithHandlerThread() EXECUTOR -> runProcessingWithExecutor() RX_JAVA -> runProcessingWithRxJava() COROUTINES -> runProcessingWithCoroutines() } } private fun runUiBlockingProcessing() { // This will block the thread while executing // com.coroutines.advanced.coroutineInUiLayer.common.utiles.showToast("Result: ${fibonacci(40)}") } private fun runProcessingWithThread() { // Create a new Thread which will do the work Thread(getCharactersRunnable).start() } private fun runProcessingWithHandler() { // Create a Handler associated with the main thread val handler = Handler(Looper.getMainLooper()) // Create a new thread and give it some work to do Thread { val characters = emptyList<DisneyCharacter>()// disneyApiService.getDisneyCharacters() // Use the handler to show results on the main thread handler.post { showResults(characters) } }.start() } private fun runProcessingWithHandlerThread() { // Create a new thread handlerThread = HandlerThread("MyHandlerThread") handlerThread?.let { handlerThread?.start() // Create a new Handler that will use HandlerThread's Looper to do its work val handler = Handler(it.looper) // Create a Handler with the main thread Looper val mainHandler = Handler(Looper.getMainLooper()) // This will run on the HandlerThread created above handler.post { val characters = emptyList<DisneyCharacter>() //disneyApiService.getDisneyCharacters() // Use the handler associated with the main thread to show the results mainHandler.post { showResults(characters) } } } } private fun runProcessingWithExecutor() { // Create a new Executor with a fixed thread pool and execute the Runnable val executor = Executors.newFixedThreadPool(1) executor.execute(getCharactersRunnable) } private fun runProcessingWithRxJava() { // 1 disposable = Single.create<List<DisneyCharacter>> { emitter -> // 2 val characters = emptyList<DisneyCharacter>()// disneyApiService.getDisneyCharacters() emitter.onSuccess(characters) // 3 }.subscribeOn(Schedulers.io()) // 4 .observeOn(AndroidSchedulers.mainThread()) // 5 .subscribe(::showResults, Throwable::printStackTrace) } private fun runProcessingWithCoroutines() { lifecycleScope.launch(Dispatchers.IO) { val characters = emptyList<DisneyCharacter>() //disneyApiService.getDisneyCharacters() withContext(Dispatchers.Main) { showResults(characters) } } } private fun showResults(characters: List<DisneyCharacter>) = with(binding) { characterList.visibility = View.VISIBLE uiProcessingContainer.visibility = View.GONE adapter.setData(characters) } private fun fibonacci(number: Int): Long { return if (number == 1 || number == 2) { 1 } else { fibonacci(number - 1) + fibonacci(number - 2) } } inner class GetCharactersRunnable : Runnable { override fun run() { val characters = emptyList<DisneyCharacter>() //disneyApiService.getDisneyCharacters() runOnUiThread { showResults(characters) } } } override fun onDestroy() { // Dispose the disposable if it has been created disposable?.dispose() // Stop the HandlerThread because it's no longer needed handlerThread?.quit() super.onDestroy() } companion object { fun start(from: Context) = from.startActivity(Intent(from, BackgroundProcessingActivity::class.java)) } }
coroutine-ultimate-guild/advanced/src/main/java/com/coroutines/advanced/coroutinesInAndroid/ui/activity/BackgroundProcessingActivity.kt
2561981262
package com.coroutines.advanced.coroutinesInAndroid.ui.activity import android.os.Bundle import androidx.appcompat.app.AppCompatActivity import com.coroutines.advanced.R import com.coroutines.advanced.coroutinesInAndroid.ui.compose.DisneyComposeActivity import com.coroutines.advanced.databinding.ActivityIntroBinding class IntroActivity : AppCompatActivity() { private lateinit var binding: ActivityIntroBinding override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) // Set theme explicitly because we used another theme for the splash screen setTheme(R.style.AppTheme) binding = ActivityIntroBinding.inflate(layoutInflater) setContentView(binding.root) setClickListeners() } private fun setClickListeners() = with(binding) { chapter14.setOnClickListener { BackgroundProcessingActivity.start(this@IntroActivity) } // chapter15.setOnClickListener { UiLayerActivity.start(this@IntroActivity) } chapter16.setOnClickListener { DisneyActivity.start(this@IntroActivity) } compose.setOnClickListener { DisneyComposeActivity.start(this@IntroActivity) } } }
coroutine-ultimate-guild/advanced/src/main/java/com/coroutines/advanced/coroutinesInAndroid/ui/activity/IntroActivity.kt
696071438
package com.coroutines.advanced.coroutinesInAndroid.ui.compose import androidx.compose.foundation.Image import androidx.compose.foundation.clickable import androidx.compose.foundation.layout.Row import androidx.compose.foundation.layout.Spacer import androidx.compose.foundation.layout.fillMaxWidth import androidx.compose.foundation.layout.padding import androidx.compose.foundation.layout.size import androidx.compose.foundation.shape.CircleShape import androidx.compose.foundation.shape.RoundedCornerShape import androidx.compose.material.Surface import androidx.compose.material.Text import androidx.compose.runtime.Composable import androidx.compose.ui.Alignment import androidx.compose.ui.Modifier import androidx.compose.ui.draw.clip import androidx.compose.ui.layout.ContentScale import androidx.compose.ui.res.stringResource import androidx.compose.ui.tooling.preview.Preview import androidx.compose.ui.unit.dp import coil.compose.rememberImagePainter import com.coroutines.advanced.R import com.coroutines.advanced.coroutinesInAndroid.ui.theme.DisneyExplorerTheme @Composable fun DisneyCharacterCard( image: String = "", name: String = "", onClick: () -> Unit = {}, ) { Surface( shape = RoundedCornerShape(16.dp), elevation = 8.dp, modifier = Modifier .fillMaxWidth() .padding(4.dp), ) { Row( Modifier .padding(12.dp) .fillMaxWidth(), verticalAlignment = Alignment.CenterVertically, ) { val painter = rememberImagePainter(data = image) Image( painter = painter, stringResource(R.string.cd_character_image), contentScale = ContentScale.Crop, modifier = Modifier .size(64.dp) .clip(CircleShape), ) Spacer(modifier = Modifier.size(20.dp)) Text(text = name, modifier = Modifier.weight(2f)) Text( text = "Details", modifier = Modifier .clickable { onClick() } .padding(8.dp) .weight(1f), ) } } } @Preview @Composable fun DefaultPreview() { DisneyExplorerTheme { DisneyCharacterCard(name = "Mickey") } }
coroutine-ultimate-guild/advanced/src/main/java/com/coroutines/advanced/coroutinesInAndroid/ui/compose/DisneyCharacterCard.kt
197892485
package com.coroutines.advanced.coroutinesInAndroid.ui.compose import android.content.Context import android.content.Intent import android.os.Bundle import androidx.activity.ComponentActivity import androidx.compose.foundation.layout.PaddingValues import androidx.compose.foundation.lazy.LazyColumn import androidx.compose.foundation.lazy.items import androidx.compose.runtime.Composable import androidx.compose.ui.unit.dp import androidx.lifecycle.Lifecycle import com.coroutines.advanced.coroutinesInAndroid.ui.viewmodel.DisneyViewModel import com.coroutines.advanced.coroutinesInAndroid.data.model.DisneyCharacter class DisneyComposeActivity : ComponentActivity() { // private val viewModel: DisneyViewModel by viewModels() override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) // setContent { // DisneyExplorerTheme { // // A surface container using the 'background' color from the theme // Surface(modifier = Modifier.fillMaxSize(), color = MaterialTheme.colors.background) { // MainDisneyScreen(viewModel = viewModel, lifecycle = lifecycle) // } // } // } } companion object { fun start(from: Context) = from.startActivity(Intent(from, DisneyComposeActivity::class.java)) } } @Composable fun MainDisneyScreen(viewModel: DisneyViewModel, lifecycle: Lifecycle) { // remember the ui state until it changes // val uiStateFlow = remember(viewModel.uiState) { // Automatically starts/stops collecting based on the specified lifecycle // viewModel.uiState.flowWithLifecycle(lifecycle, Lifecycle.State.STARTED) // } // Collects the flow as State (Compose State) // val charactersList by uiStateFlow.collectAsState(emptyList()) // CharacterList(characterList = charactersList) } @Composable private fun CharacterList(characterList: List<DisneyCharacter>) { LazyColumn(contentPadding = PaddingValues(16.dp)) { items(characterList) { character -> DisneyCharacterCard( image = character.imageUrl, name = character.name, ) } } }
coroutine-ultimate-guild/advanced/src/main/java/com/coroutines/advanced/coroutinesInAndroid/ui/compose/DisneyComposeActivity.kt
3231625194
package com.coroutines.advanced.coroutinesInAndroid.ui.adapter.list import android.view.ViewGroup import androidx.recyclerview.widget.RecyclerView import com.coroutines.advanced.coroutinesInAndroid.data.model.DisneyCharacter class DisneyAdapter : RecyclerView.Adapter<CharacterViewHolder>() { private val data: MutableList<DisneyCharacter> = mutableListOf() fun setData(characters: List<DisneyCharacter>) { data.clear() data.addAll(characters) notifyDataSetChanged() } override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): CharacterViewHolder { return CharacterViewHolder.create(parent) } override fun onBindViewHolder(holder: CharacterViewHolder, position: Int) { holder.bind(data[position]) } override fun getItemCount() = data.size }
coroutine-ultimate-guild/advanced/src/main/java/com/coroutines/advanced/coroutinesInAndroid/ui/adapter/list/DisneyAdapter.kt
3657764241
package com.coroutines.advanced.coroutinesInAndroid.ui.adapter.list import android.view.LayoutInflater import android.view.ViewGroup import androidx.recyclerview.widget.RecyclerView import coil.load import com.coroutines.advanced.databinding.ListItemCharacterBinding import com.coroutines.advanced.coroutinesInAndroid.data.model.DisneyCharacter class CharacterViewHolder(private val binding: ListItemCharacterBinding) : RecyclerView.ViewHolder(binding.root) { fun bind(disneyCharacter: DisneyCharacter) = with(binding) { characterImage.load(disneyCharacter.imageUrl) characterName.text = disneyCharacter.name } companion object { fun create(parent: ViewGroup): CharacterViewHolder { val binding = ListItemCharacterBinding.inflate( LayoutInflater.from(parent.context), parent, false, ) return CharacterViewHolder(binding) } } }
coroutine-ultimate-guild/advanced/src/main/java/com/coroutines/advanced/coroutinesInAndroid/ui/adapter/list/CharacterViewHolder.kt
54557000
package com.coroutines.advanced.coroutinesInAndroid.ui.adapter import android.view.LayoutInflater import android.view.ViewGroup import androidx.recyclerview.widget.RecyclerView import com.coroutines.advanced.databinding.ListItemNumberBinding class NumbersAdapter : RecyclerView.Adapter<NumberViewHolder>() { private val numbers = mutableListOf<Int>() fun addNumber(number: Int) { numbers.add(number) notifyItemInserted(itemCount - 1) } override fun onCreateViewHolder(parent: ViewGroup, viewType: Int) = NumberViewHolder.create(parent) override fun onBindViewHolder(holder: NumberViewHolder, position: Int) { holder.bind(numbers[position]) } override fun getItemCount() = numbers.size override fun getItemId(position: Int) = numbers[position].toLong() } class NumberViewHolder(private val binding: ListItemNumberBinding) : RecyclerView.ViewHolder(binding.root) { fun bind(number: Int) { binding.number.text = number.toString() } companion object { fun create(parent: ViewGroup): NumberViewHolder { val binding = ListItemNumberBinding.inflate( LayoutInflater.from(parent.context), parent, false ) return NumberViewHolder(binding) } } }
coroutine-ultimate-guild/advanced/src/main/java/com/coroutines/advanced/coroutinesInAndroid/ui/adapter/NumbersAdapter.kt
1349612627
package com.coroutines.advanced.coroutinesInAndroid.ui.theme import androidx.compose.foundation.shape.RoundedCornerShape import androidx.compose.material.Shapes import androidx.compose.ui.unit.dp val Shapes = Shapes( small = RoundedCornerShape(4.dp), medium = RoundedCornerShape(4.dp), large = RoundedCornerShape(0.dp) )
coroutine-ultimate-guild/advanced/src/main/java/com/coroutines/advanced/coroutinesInAndroid/ui/theme/Shape.kt
820111652
package com.coroutines.advanced.coroutinesInAndroid.ui.theme import androidx.compose.ui.graphics.Color val Purple200 = Color(0xFFBB86FC) val Purple500 = Color(0xFF6200EE) val Purple700 = Color(0xFF3700B3) val Teal200 = Color(0xFF03DAC5)
coroutine-ultimate-guild/advanced/src/main/java/com/coroutines/advanced/coroutinesInAndroid/ui/theme/Color.kt
3289511850
package com.coroutines.advanced.coroutinesInAndroid.ui.theme import androidx.compose.foundation.isSystemInDarkTheme import androidx.compose.material.MaterialTheme import androidx.compose.material.darkColors import androidx.compose.material.lightColors import androidx.compose.runtime.Composable import androidx.compose.ui.graphics.Color private val DarkColorPalette = darkColors( primary = Purple200, primaryVariant = Purple700, secondary = Teal200, background = Color.Black ) private val LightColorPalette = lightColors( primary = Purple500, primaryVariant = Purple700, secondary = Teal200, background = Color.White /* Other default colors to override background = Color.White, surface = Color.White, onPrimary = Color.White, onSecondary = Color.Black, onBackground = Color.Black, onSurface = Color.Black, */ ) @Composable fun DisneyExplorerTheme( darkTheme: Boolean = isSystemInDarkTheme(), content: @Composable () -> Unit ) { val colors = if (darkTheme) { DarkColorPalette } else { LightColorPalette } MaterialTheme( colors = colors, typography = Typography, shapes = Shapes, content = content ) }
coroutine-ultimate-guild/advanced/src/main/java/com/coroutines/advanced/coroutinesInAndroid/ui/theme/Theme.kt
2353994539
package com.coroutines.advanced.coroutinesInAndroid.ui.theme import androidx.compose.material.Typography import androidx.compose.ui.text.TextStyle import androidx.compose.ui.text.font.FontFamily import androidx.compose.ui.text.font.FontWeight import androidx.compose.ui.unit.sp // Set of Material typography styles to start with val Typography = Typography( body1 = TextStyle( fontFamily = FontFamily.Default, fontWeight = FontWeight.Normal, fontSize = 16.sp ) /* Other default text styles to override button = TextStyle( fontFamily = FontFamily.Default, fontWeight = FontWeight.W500, fontSize = 14.sp ), caption = TextStyle( fontFamily = FontFamily.Default, fontWeight = FontWeight.Normal, fontSize = 12.sp ) */ )
coroutine-ultimate-guild/advanced/src/main/java/com/coroutines/advanced/coroutinesInAndroid/ui/theme/Type.kt
2529955944
package com.coroutines.advanced.coroutinesInAndroid import android.app.Application import android.content.Context class App : Application() { companion object { lateinit var appContext: Context } override fun onCreate() { super.onCreate() appContext = this } }
coroutine-ultimate-guild/advanced/src/main/java/com/coroutines/advanced/coroutinesInAndroid/App.kt
1799583144
package com.coroutines.advanced.coroutinesInAndroid.di import androidx.room.Room import com.coroutines.advanced.coroutineInUiLayer.common.utiles.CoroutineContextProvider import com.coroutines.advanced.coroutineInUiLayer.data.networking.DisneyApi import com.coroutines.advanced.coroutinesInAndroid.App import com.coroutines.advanced.coroutinesInAndroid.data.database.CharacterDao import com.coroutines.advanced.coroutinesInAndroid.data.database.DisneyDatabase import com.jakewharton.retrofit2.converter.kotlinx.serialization.asConverterFactory import kotlinx.serialization.json.Json import okhttp3.Interceptor import okhttp3.MediaType.Companion.toMediaType import okhttp3.OkHttpClient import okhttp3.logging.HttpLoggingInterceptor import retrofit2.Retrofit private const val BASE_URL = "http://api.disneyapi.dev/" private const val DB_NAME = "CharactersDatabase" /* This is a very basic and naive approach to implement Dependency Injection. But, it will suffice for this sample project. */ object DependencyHolder { val disneyApi: DisneyApi by lazy { retrofit.create(DisneyApi::class.java) } // private val characterDao: CharacterDao by lazy { getDatabase().characterDao() } // val disneyRepository: DisneyRepository by lazy { // DisneyRepositoryImpl( // // apiService, // characterDao, // getCoroutineContextProvider(), // ) // } // val apiService: DisneyApiService by lazy { DisneyApiServiceImpl(disneyApi) } private val json = Json { ignoreUnknownKeys = true } private val contentType = "application/json".toMediaType() private val retrofit by lazy { buildRetrofit() } private fun buildRetrofit() = Retrofit.Builder() .baseUrl(BASE_URL) .client(getOkHttpClient()) .addConverterFactory(json.asConverterFactory(contentType)) .build() private fun getCoroutineContextProvider() = CoroutineContextProvider() private fun getDatabase() = Room.databaseBuilder( App.appContext, DisneyDatabase::class.java, DB_NAME, ).build() private fun getOkHttpClient() = OkHttpClient.Builder() // .apply { if (BuildConfig.DEBUG) eventListenerFactory(LoggingEventListener.Factory()) } .addInterceptor(getLoggingInterceptor()) .build() private fun getLoggingInterceptor(): Interceptor { return HttpLoggingInterceptor().setLevel(HttpLoggingInterceptor.Level.BODY) } }
coroutine-ultimate-guild/advanced/src/main/java/com/coroutines/advanced/coroutinesInAndroid/di/DependencyHolder.kt
3204833329
package com.raywenderlich.android.disneyexplorer.common.utils import android.content.Context import android.widget.Button import android.widget.Toast import kotlinx.coroutines.CoroutineScope import kotlinx.coroutines.delay import kotlinx.coroutines.launch fun Context.showToast(text: String) { Toast.makeText(this, text, Toast.LENGTH_SHORT).show() }
coroutine-ultimate-guild/advanced/src/main/java/com/coroutines/advanced/coroutinesInAndroid/common/utils/Extensions.kt
1621703040
package com.raywenderlich.android.disneyexplorer.common.utils import kotlinx.coroutines.Dispatchers import kotlinx.coroutines.flow.flow import kotlinx.coroutines.flow.flowOn import kotlin.random.Random object FlowUtils { fun testDataFlow() = flow { while (true) { emit(Random.nextInt()) println("FLOW: Emitting item") kotlinx.coroutines.delay(500) } }.flowOn(Dispatchers.Default) }
coroutine-ultimate-guild/advanced/src/main/java/com/coroutines/advanced/coroutinesInAndroid/common/utils/FlowUtils.kt
1015811690
package com.raywenderlich.android.disneyexplorer.common.utils import com.coroutines.advanced.coroutineInUiLayer.common.utiles.CoroutineContextProvider import kotlinx.coroutines.CoroutineDispatcher import kotlinx.coroutines.Dispatchers open class CoroutineContextProvider { open val mainDispatcher: CoroutineDispatcher = Dispatchers.Main open val ioDispatcher = Dispatchers.IO open val defaultDispatcher = Dispatchers.Default } class TestCoroutineContextProvider : CoroutineContextProvider() { override val mainDispatcher = Dispatchers.Unconfined override val ioDispatcher = Dispatchers.Unconfined override val defaultDispatcher = Dispatchers.Unconfined }
coroutine-ultimate-guild/advanced/src/main/java/com/coroutines/advanced/coroutinesInAndroid/common/utils/CoroutineContextProvider.kt
3197380428
package com.coroutines.advanced.coroutinesInAndroid.data.database import androidx.room.Database import androidx.room.RoomDatabase import com.coroutines.advanced.coroutinesInAndroid.data.model.DisneyCharacter @Database(entities = [DisneyCharacter::class], version = 1, exportSchema = false) abstract class DisneyDatabase : RoomDatabase() { // abstract fun characterDao(): CharacterDao }
coroutine-ultimate-guild/advanced/src/main/java/com/coroutines/advanced/coroutinesInAndroid/data/database/DisneyDatabase.kt
161231677
package com.coroutines.advanced.coroutinesInAndroid.data.database import androidx.room.Dao import androidx.room.Insert import androidx.room.Query import com.coroutines.advanced.coroutinesInAndroid.data.model.DisneyCharacter //@Dao interface CharacterDao { // @Insert fun saveCharacters(characters: List<DisneyCharacter>) // TODO: Add suspend modifier to the function and compare the results (chapter 17) // @Query("SELECT * FROM character") suspend fun getCharacters(): List<DisneyCharacter> // TODO: Add a function which returns flow of data (chapter 17) // TODO: Add a function which returns results wrapped in LiveData (chapter 18) }
coroutine-ultimate-guild/advanced/src/main/java/com/coroutines/advanced/coroutinesInAndroid/data/database/CharacterDao.kt
2198611823
package com.coroutines.advanced.coroutinesInAndroid.data.repository import com.coroutines.advanced.coroutinesInAndroid.data.model.DisneyCharacter import kotlinx.coroutines.flow.Flow interface DisneyRepository { suspend fun getDisneyCharacters(): List<DisneyCharacter> fun disneyCharacterFlow(): Flow<List<DisneyCharacter>> }
coroutine-ultimate-guild/advanced/src/main/java/com/coroutines/advanced/coroutinesInAndroid/data/repository/DisneyRepository.kt
441082496
package com.coroutines.advanced.coroutinesInAndroid.data.repository import com.coroutines.advanced.coroutineInUiLayer.common.utiles.CoroutineContextProvider import com.coroutines.advanced.coroutinesInAndroid.data.database.CharacterDao import com.coroutines.advanced.coroutinesInAndroid.data.model.DisneyCharacter import kotlinx.coroutines.flow.Flow import kotlinx.coroutines.flow.flow import kotlinx.coroutines.withContext class DisneyRepositoryImpl( // private val apiService: DisneyApiService, private val characterDao: CharacterDao, private val coroutineContextProvider: CoroutineContextProvider, ) : DisneyRepository { override suspend fun getDisneyCharacters(): List<DisneyCharacter> { return withContext(coroutineContextProvider.ioDispatcher) { // val apiResponse = apiService.getCharactersSuspend() // characterDao.saveCharacters(apiResponse) characterDao.getCharacters() } } override fun disneyCharacterFlow(): Flow<List<DisneyCharacter>> { return flow { // val apiResponse = apiService.getCharactersSuspend() // characterDao.saveCharacters(apiResponse) emit(characterDao.getCharacters()) } } }
coroutine-ultimate-guild/advanced/src/main/java/com/coroutines/advanced/coroutinesInAndroid/data/repository/DisneyRepositoryImpl.kt
3138428180
package com.coroutines.advanced.coroutinesInAndroid.data.model import androidx.room.Entity import androidx.room.PrimaryKey import kotlinx.serialization.SerialName import kotlinx.serialization.Serializable @Entity(tableName = "character") @Serializable data class DisneyCharacter( @SerialName("_id") @PrimaryKey val id: Int, val name: String, val imageUrl: String, )
coroutine-ultimate-guild/advanced/src/main/java/com/coroutines/advanced/coroutinesInAndroid/data/model/DisneyCharacter.kt
3336605869
package com.coroutines.advanced.coroutinesInAndroid.data.model import kotlinx.serialization.Serializable @Serializable data class CharactersResponse(val data: List<DisneyCharacter>)
coroutine-ultimate-guild/advanced/src/main/java/com/coroutines/advanced/coroutinesInAndroid/data/model/CharactersResponse.kt
517018795
package com.coroutines.advanced.manageCancellation import kotlinx.coroutines.delay import kotlinx.coroutines.joinAll import kotlinx.coroutines.launch import kotlinx.coroutines.runBlocking fun main() = runBlocking { val jobOne = launch { println("Job 1: Crunching numbers [Beep.Boop.Beep]...") delay(2000L) } val jobTwo = launch { println("Job 2: Crunching numbers [Beep.Boop.Beep]...") delay(500L) } // waiting for all : joinAll(jobOne, jobTwo) println("main: Now I can quit.") }
coroutine-ultimate-guild/advanced/src/main/java/com/coroutines/advanced/manageCancellation/JoinAllCoroutineEaxmple.kt
1861110664
package com.coroutines.advanced.manageCancellation import kotlinx.coroutines.delay import kotlinx.coroutines.runBlocking import kotlinx.coroutines.withTimeoutOrNull fun main() = runBlocking { val result = withTimeoutOrNull(1300L) { repeat(1000) { i -> println("$i. Crunching numbers [Beep.Boop.Beep]...") delay(500L) } "Done" // will get canceled before it produces this result } // Result will be null println("Result is $result") }
coroutine-ultimate-guild/advanced/src/main/java/com/coroutines/advanced/manageCancellation/WithTimeoutOrNullExample.kt
3920757718
package com.coroutines.advanced.manageCancellation import kotlinx.coroutines.Dispatchers import kotlinx.coroutines.delay import kotlinx.coroutines.isActive import kotlinx.coroutines.launch import kotlinx.coroutines.runBlocking fun main() = runBlocking { val startTime = System.currentTimeMillis() val job = launch(Dispatchers.Default) { var nextPrintTime = startTime var i = 0 while (i < 10 && isActive) { if (System.currentTimeMillis() >= nextPrintTime) { println("Doing heavy work $i") i++ nextPrintTime += 500L } } } delay(1000) println("Cancelling coroutine") job.cancel() println("Main: now I can quit!") }
coroutine-ultimate-guild/advanced/src/main/java/com/coroutines/advanced/manageCancellation/CooperativeCancellation.kt
1160843994
package com.coroutines.advanced.manageCancellation import kotlinx.coroutines.Dispatchers import kotlinx.coroutines.cancel import kotlinx.coroutines.delay import kotlinx.coroutines.launch import kotlinx.coroutines.runBlocking fun main() = runBlocking { val job = launch(Dispatchers.Default) { var i = 0 while (i < 1000) { println("Doing heavy work ${i++}") delay(500) } } delay(1200) println("Cancelling") job.cancel() println("Main: Now I can quit!") }
coroutine-ultimate-guild/advanced/src/main/java/com/coroutines/advanced/manageCancellation/StdLibCancellation.kt
4166624959
package com.coroutines.advanced.manageCancellation import kotlinx.coroutines.delay import kotlinx.coroutines.runBlocking import kotlinx.coroutines.withTimeout fun main() = runBlocking { withTimeout(1500L) { repeat(1000) { i -> println("$i. Crunching numbers [Beep.Boop.Beep]...") delay(500L) } } }
coroutine-ultimate-guild/advanced/src/main/java/com/coroutines/advanced/manageCancellation/WithTimeoutExample.kt
1352676725
package com.coroutines.advanced.manageCancellation import kotlinx.coroutines.cancelChildren import kotlinx.coroutines.delay import kotlinx.coroutines.launch import kotlinx.coroutines.runBlocking fun main() = runBlocking { val parentJob = launch { val childOne = launch { repeat(1000) { i -> println( "Child Coroutine 1: " + "$i. Crunching numbers [Beep.Boop.Beep]...", ) delay(500L) } } // Handle the exception thrown from `launch` // coroutine builder childOne.invokeOnCompletion { exception -> println("Child One: ${exception?.message}") } val childTwo = launch { repeat(1000) { i -> println("Child coroutine 2: $i. Crunching numbers [Beep.Boop.Beep]...") delay(500L) } } // Handle the exception thrown from `launch` // coroutine builder childTwo.invokeOnCompletion { exception -> println("child two: ${exception?.message}") } } delay(1200L) println("Calling cancelChildren() on the parentJob") parentJob.cancelChildren() println("parentJob isActive ${parentJob.isActive}") }
coroutine-ultimate-guild/advanced/src/main/java/com/coroutines/advanced/manageCancellation/CancelChildren.kt
3612848833
package com.coroutines.advanced.manageCancellation import kotlinx.coroutines.delay import kotlinx.coroutines.launch import kotlinx.coroutines.runBlocking fun main() = runBlocking { val job = launch { println("Crunching Numbers [Beep.Boop.Beep]...") delay(1000L) } // waiting for completion : job.join() println("main: now i can quit ") }
coroutine-ultimate-guild/advanced/src/main/java/com/coroutines/advanced/manageCancellation/JoinCoroutineExample.kt
2194787969
package com.coroutines.advanced.manageCancellation import kotlinx.coroutines.CancellationException import kotlinx.coroutines.CoroutineExceptionHandler import kotlinx.coroutines.DelicateCoroutinesApi import kotlinx.coroutines.GlobalScope import kotlinx.coroutines.launch import kotlinx.coroutines.runBlocking import java.io.IOException @OptIn(DelicateCoroutinesApi::class) fun main() = runBlocking { val handler = CoroutineExceptionHandler { _, exception -> println("Caught original $exception") } val parentJob = GlobalScope.launch(handler) { val childJob = launch { throw IOException() } try { childJob.join() } catch (e: CancellationException) { println( "Rethrowing CancellationException with original\n" + "cause: ${e.cause}", ) throw e } } parentJob.join() }
coroutine-ultimate-guild/advanced/src/main/java/com/coroutines/advanced/manageCancellation/CancellationExceptionExample.kt
1380503182
package com.coroutines.advanced.manageCancellation import kotlinx.coroutines.cancelAndJoin import kotlinx.coroutines.delay import kotlinx.coroutines.launch import kotlinx.coroutines.runBlocking fun main() = runBlocking { val job = launch { repeat(1000) { i -> println("$i. Crunching numbers [Beep.Boop.Beep]...") delay(500L) } } delay(1300L) println("main: im tired of waiting!") job.cancelAndJoin() println("main: now i can quit.") } /** * without cancelAndJoin the launch first at the start and never stops until it * finishes, meanwhile the outside of launch block runs after * 1300 milli seconds * * with cancel and join the launch block runs only for * 1300 milli second */
coroutine-ultimate-guild/advanced/src/main/java/com/coroutines/advanced/manageCancellation/CancelAndJoinCoroutineExample.kt
1539524482
package com.coroutines.advanced.manageCancellation import kotlinx.coroutines.TimeoutCancellationException import kotlinx.coroutines.delay import kotlinx.coroutines.runBlocking import kotlinx.coroutines.withTimeout fun main() = runBlocking { try { withTimeout(1500L) { repeat(1000) { i -> println("$i. Crunching numbers [Beep.Boop.Beep]...") delay(500L) } } } catch (e: TimeoutCancellationException) { println("Caught ${e.javaClass.simpleName}") } }
coroutine-ultimate-guild/advanced/src/main/java/com/coroutines/advanced/manageCancellation/TimeoutCancellationExceptionHandling.kt
1989040729
package com.coroutines.advanced.flowOfData import kotlinx.coroutines.DelicateCoroutinesApi import kotlinx.coroutines.GlobalScope import kotlinx.coroutines.flow.MutableSharedFlow import kotlinx.coroutines.flow.launchIn import kotlinx.coroutines.flow.onEach @OptIn(DelicateCoroutinesApi::class) fun main() { val sharedFlow = MutableSharedFlow<Int>(2) sharedFlow.tryEmit(5) sharedFlow.tryEmit(3) sharedFlow.tryEmit(1) sharedFlow.onEach { println("Emitting $it") }.launchIn(GlobalScope) sharedFlow.onEach { println("Hello $it") }.launchIn(GlobalScope) Thread.sleep(50) }
coroutine-ultimate-guild/advanced/src/main/java/com/coroutines/advanced/flowOfData/ReplayingValues.kt
1542283713
package com.coroutines.advanced.flowOfData import kotlinx.coroutines.DelicateCoroutinesApi import kotlinx.coroutines.Dispatchers import kotlinx.coroutines.GlobalScope import kotlinx.coroutines.flow.catch import kotlinx.coroutines.flow.flow import kotlinx.coroutines.flow.flowOn import kotlinx.coroutines.flow.map import kotlinx.coroutines.launch @OptIn(DelicateCoroutinesApi::class) fun main() { val flowOfString = flow { // emit("") : uncomment to see an exception for (number in 0..100) { emit("Emitting $number") } } GlobalScope.launch { flowOfString .map { it.split(" ") } .map { it[1] } // .catch { CoroutineExceptionHandler } .catch { it.printStackTrace() emit("Fallback") } .flowOn(Dispatchers.Default) .collect { println(it) } } println("the code still work") }
coroutine-ultimate-guild/advanced/src/main/java/com/coroutines/advanced/flowOfData/TransparencyOfException.kt
2966546253
package com.coroutines.advanced.flowOfData import kotlinx.coroutines.CoroutineScope import kotlinx.coroutines.Dispatchers import kotlinx.coroutines.cancel import kotlinx.coroutines.flow.MutableSharedFlow import kotlinx.coroutines.flow.launchIn import kotlinx.coroutines.flow.onEach import kotlinx.coroutines.isActive import kotlinx.coroutines.launch fun main() { val coroutineScope = CoroutineScope(Dispatchers.Default) val sharedFlow = MutableSharedFlow<Int>() sharedFlow.onEach { println("Emitting $it") }.launchIn(coroutineScope) coroutineScope.launch { sharedFlow.emit(5) sharedFlow.emit(3) sharedFlow.emit(1) coroutineScope.cancel() } while (coroutineScope.isActive) { } }
coroutine-ultimate-guild/advanced/src/main/java/com/coroutines/advanced/flowOfData/ConsumingHotFlow.kt
213538576
package com.coroutines.advanced.flowOfData import kotlinx.coroutines.CoroutineScope import kotlinx.coroutines.Dispatchers import kotlinx.coroutines.flow.MutableStateFlow import kotlinx.coroutines.isActive import kotlinx.coroutines.launch fun main() { val coroutineScope = CoroutineScope(Dispatchers.Default) val stateFlow = MutableStateFlow("Author: Filip") println(stateFlow.value) // accesses value without subscribing coroutineScope.launch { // access values with subscribing stateFlow.collect { println(it) } } while (coroutineScope.isActive) { } }
coroutine-ultimate-guild/advanced/src/main/java/com/coroutines/advanced/flowOfData/StateFlow.kt
2223006867
package com.coroutines.advanced.flowOfData import kotlinx.coroutines.DelicateCoroutinesApi import kotlinx.coroutines.GlobalScope import kotlinx.coroutines.flow.MutableSharedFlow import kotlinx.coroutines.flow.launchIn import kotlinx.coroutines.flow.onEach @OptIn(DelicateCoroutinesApi::class) fun main() { val sharedFlow = MutableSharedFlow<Int>(replay = 2) sharedFlow.onEach { println("Emitting $it") }.launchIn(GlobalScope) sharedFlow.onEach { println("Hello $it") }.launchIn(GlobalScope) sharedFlow.tryEmit(5) sharedFlow.tryEmit(3) Thread.sleep(50) }
coroutine-ultimate-guild/advanced/src/main/java/com/coroutines/advanced/flowOfData/SharedAndStateFlow.kt
3231341500
package com.coroutines.advanced.flowOfData import kotlinx.coroutines.CoroutineScope import kotlinx.coroutines.Dispatchers import kotlinx.coroutines.cancel import kotlinx.coroutines.flow.SharingStarted import kotlinx.coroutines.flow.flow import kotlinx.coroutines.flow.launchIn import kotlinx.coroutines.flow.onEach import kotlinx.coroutines.flow.shareIn import kotlinx.coroutines.isActive fun main() { val coroutineScope = CoroutineScope(Dispatchers.Default) val sharedFlow = flow { emit(5) emit(3) emit(1) Thread.sleep(50) coroutineScope.cancel() }.shareIn(coroutineScope, started = SharingStarted.Lazily) sharedFlow.onEach { println("Emitting $it") }.launchIn(coroutineScope) while (coroutineScope.isActive) { } } /** * using sharedIn we transform a flow into a shredFlow * started = SharingStarted.Lazily : waits for the first subscriber */
coroutine-ultimate-guild/advanced/src/main/java/com/coroutines/advanced/flowOfData/TransformingtoSharedFlow.kt
696609074
package com.coroutines.advanced.flowOfData import kotlinx.coroutines.DelicateCoroutinesApi import kotlinx.coroutines.GlobalScope import kotlinx.coroutines.flow.flow import kotlinx.coroutines.launch @OptIn(DelicateCoroutinesApi::class) fun main() { val flowOfString = flow { for (number in 0..100) { emit("Emitting $number") } } GlobalScope.launch { flowOfString.collect { value -> println(value) } } Thread.sleep(1000) }
coroutine-ultimate-guild/advanced/src/main/java/com/coroutines/advanced/flowOfData/BeginningWithCoroutineFlow.kt
1638310892
package com.coroutines.advanced.flowOfData import kotlinx.coroutines.DelicateCoroutinesApi import kotlinx.coroutines.Dispatchers import kotlinx.coroutines.GlobalScope import kotlinx.coroutines.delay import kotlinx.coroutines.flow.flow import kotlinx.coroutines.flow.flowOn import kotlinx.coroutines.flow.map import kotlinx.coroutines.flow.onEach import kotlinx.coroutines.launch @OptIn(DelicateCoroutinesApi::class) fun main() { val flowOfString = flow { for (number in 0..100) { emit("Emitting $number") } } GlobalScope.launch { flowOfString .map { it.split(" ") } .map { it.last() } .flowOn(Dispatchers.IO) .onEach { delay(100) } .flowOn(Dispatchers.Default) .collect { value -> println(value) } } }
coroutine-ultimate-guild/advanced/src/main/java/com/coroutines/advanced/flowOfData/SwitchingContext.kt
710215167
package com.coroutines.advanced.flowOfData import kotlinx.coroutines.DelicateCoroutinesApi import kotlinx.coroutines.GlobalScope import kotlinx.coroutines.delay import kotlinx.coroutines.flow.flow import kotlinx.coroutines.flow.map import kotlinx.coroutines.flow.onEach import kotlinx.coroutines.launch @OptIn(DelicateCoroutinesApi::class) fun main() { val flowOfString = flow { for (number in 0..100) { emit("Emitting $number") } } GlobalScope.launch { flowOfString .map { it.split(" ") } .map { it.last() } .onEach { delay(100) } .collect { value -> println(value) } } }
coroutine-ultimate-guild/advanced/src/main/java/com/coroutines/advanced/flowOfData/TransformingFlow.kt
3200131075
package com.coroutines.advanced.flowOfData import kotlinx.coroutines.DelicateCoroutinesApi import kotlinx.coroutines.Dispatchers import kotlinx.coroutines.GlobalScope import kotlinx.coroutines.flow.collect import kotlinx.coroutines.flow.flow import kotlinx.coroutines.launch import kotlinx.coroutines.withContext /** * this ends up in a exception saying: you cant change the flow concurrency * */ @OptIn(DelicateCoroutinesApi::class) fun mainBroken() { // this is a violation : val flowOfString = flow { for (number in 0..100) { GlobalScope.launch { emit("Emitting $number") } } } GlobalScope.launch { flowOfString.collect { println(it) } } } @OptIn(DelicateCoroutinesApi::class) fun main() { val flowOfString = flow { for (number in 0..100) { withContext(Dispatchers.IO) { emit("Emitting $number") } } } GlobalScope.launch { flowOfString.collect { println(it) } } }
coroutine-ultimate-guild/advanced/src/main/java/com/coroutines/advanced/flowOfData/PreservingFlowContext.kt
3835917059
package com.coroutines.advanced.flowOfData import kotlinx.coroutines.DelicateCoroutinesApi import kotlinx.coroutines.GlobalScope import kotlinx.coroutines.flow.MutableSharedFlow import kotlinx.coroutines.flow.launchIn import kotlinx.coroutines.flow.onEach @OptIn(DelicateCoroutinesApi::class) fun main() { val sharedFlow = MutableSharedFlow<Int>() sharedFlow.tryEmit(5) sharedFlow.tryEmit(3) sharedFlow.tryEmit(1) sharedFlow.onEach { println("Emitting $it") }.launchIn(GlobalScope) sharedFlow.onEach { println("Hello $it") }.launchIn(GlobalScope) Thread.sleep(50) }
coroutine-ultimate-guild/advanced/src/main/java/com/coroutines/advanced/flowOfData/HotStream.kt
1382192811
package com.coroutines.advanced.flowOfData import kotlinx.coroutines.CoroutineScope import kotlinx.coroutines.Dispatchers import kotlinx.coroutines.cancel import kotlinx.coroutines.flow.MutableStateFlow import kotlinx.coroutines.launch fun main() { val coroutineScope = CoroutineScope(Dispatchers.Default) val stateFlow = MutableStateFlow("Author: Filip") stateFlow.value = "Author: Luka" // first way of updating: direct stateFlow.tryEmit("FPE: Max") // second way of updating: safest coroutineScope.launch { stateFlow.emit("TE: Godfred") // third way } coroutineScope.launch { stateFlow.collect { println(it) } } Thread.sleep(50) coroutineScope.cancel() }
coroutine-ultimate-guild/advanced/src/main/java/com/coroutines/advanced/flowOfData/ChangingStateFlow.kt
4064268599
package com.coroutines.advanced.coroutineInUiLayer.ui.theme import androidx.compose.ui.graphics.Color val Purple80 = Color(0xFFD0BCFF) val PurpleGrey80 = Color(0xFFCCC2DC) val Pink80 = Color(0xFFEFB8C8) val Purple40 = Color(0xFF6650a4) val PurpleGrey40 = Color(0xFF625b71) val Pink40 = Color(0xFF7D5260)
coroutine-ultimate-guild/advanced/src/main/java/com/coroutines/advanced/coroutineInUiLayer/ui/theme/Color.kt
2981544636
package com.coroutines.advanced.coroutineInUiLayer.ui.theme import android.app.Activity import android.os.Build import androidx.compose.foundation.isSystemInDarkTheme import androidx.compose.material3.MaterialTheme import androidx.compose.material3.darkColorScheme import androidx.compose.material3.dynamicDarkColorScheme import androidx.compose.material3.dynamicLightColorScheme import androidx.compose.material3.lightColorScheme import androidx.compose.runtime.Composable import androidx.compose.runtime.SideEffect import androidx.compose.ui.graphics.toArgb import androidx.compose.ui.platform.LocalContext import androidx.compose.ui.platform.LocalView import androidx.core.view.WindowCompat private val DarkColorScheme = darkColorScheme( primary = Purple80, secondary = PurpleGrey80, tertiary = Pink80 ) private val LightColorScheme = lightColorScheme( primary = Purple40, secondary = PurpleGrey40, tertiary = Pink40 /* Other default colors to override background = Color(0xFFFFFBFE), surface = Color(0xFFFFFBFE), onPrimary = Color.White, onSecondary = Color.White, onTertiary = Color.White, onBackground = Color(0xFF1C1B1F), onSurface = Color(0xFF1C1B1F), */ ) @Composable fun CoroutineUltimateGuideTheme( darkTheme: Boolean = isSystemInDarkTheme(), // Dynamic color is available on Android 12+ dynamicColor: Boolean = true, content: @Composable () -> Unit ) { val colorScheme = when { dynamicColor && Build.VERSION.SDK_INT >= Build.VERSION_CODES.S -> { val context = LocalContext.current if (darkTheme) dynamicDarkColorScheme(context) else dynamicLightColorScheme(context) } darkTheme -> DarkColorScheme else -> LightColorScheme } val view = LocalView.current if (!view.isInEditMode) { SideEffect { val window = (view.context as Activity).window window.statusBarColor = colorScheme.primary.toArgb() WindowCompat.getInsetsController(window, view).isAppearanceLightStatusBars = darkTheme } } MaterialTheme( colorScheme = colorScheme, typography = Typography, content = content ) }
coroutine-ultimate-guild/advanced/src/main/java/com/coroutines/advanced/coroutineInUiLayer/ui/theme/Theme.kt
2160958482
package com.coroutines.advanced.coroutineInUiLayer.ui.theme import androidx.compose.material3.Typography import androidx.compose.ui.text.TextStyle import androidx.compose.ui.text.font.FontFamily import androidx.compose.ui.text.font.FontWeight import androidx.compose.ui.unit.sp // Set of Material typography styles to start with val Typography = Typography( bodyLarge = TextStyle( fontFamily = FontFamily.Default, fontWeight = FontWeight.Normal, fontSize = 16.sp, lineHeight = 24.sp, letterSpacing = 0.5.sp ) /* Other default text styles to override titleLarge = TextStyle( fontFamily = FontFamily.Default, fontWeight = FontWeight.Normal, fontSize = 22.sp, lineHeight = 28.sp, letterSpacing = 0.sp ), labelSmall = TextStyle( fontFamily = FontFamily.Default, fontWeight = FontWeight.Medium, fontSize = 11.sp, lineHeight = 16.sp, letterSpacing = 0.5.sp ) */ )
coroutine-ultimate-guild/advanced/src/main/java/com/coroutines/advanced/coroutineInUiLayer/ui/theme/Type.kt
2008078448
package com.coroutines.advanced.coroutineInUiLayer import android.os.Bundle import androidx.activity.ComponentActivity import androidx.activity.compose.setContent import androidx.compose.foundation.layout.fillMaxSize import androidx.compose.material3.MaterialTheme import androidx.compose.material3.Surface import androidx.compose.material3.Text import androidx.compose.runtime.Composable import androidx.compose.ui.Modifier import androidx.compose.ui.tooling.preview.Preview import androidx.lifecycle.lifecycleScope import com.coroutines.advanced.coroutineInUiLayer.ui.theme.CoroutineUltimateGuideTheme import kotlinx.coroutines.launch class MainActivity : ComponentActivity() { override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) setContent { CoroutineUltimateGuideTheme { // A surface container using the 'background' color from the theme Surface( modifier = Modifier.fillMaxSize(), color = MaterialTheme.colorScheme.background, ) { Greeting("Android") } } } } private fun fetchDisneyCharacters() { lifecycleScope.launch { // apiService.getCharacters() // .onSuccess { showResults(it.data) } // .onFailure { showError(it) } // } } } } @Composable fun Greeting(name: String, modifier: Modifier = Modifier) { Text( text = "Hello $name!", modifier = modifier, ) } @Preview(showBackground = true) @Composable fun GreetingPreview() { CoroutineUltimateGuideTheme { Greeting("Android") } }
coroutine-ultimate-guild/advanced/src/main/java/com/coroutines/advanced/coroutineInUiLayer/MainActivity.kt
2284331016
package com.coroutines.advanced.coroutineInUiLayer import android.os.Bundle import androidx.activity.compose.setContent import androidx.appcompat.app.AppCompatActivity import androidx.compose.foundation.layout.fillMaxSize import androidx.compose.material3.MaterialTheme import androidx.compose.material3.Surface import androidx.compose.material3.Text import androidx.compose.runtime.Composable import androidx.compose.ui.Modifier import androidx.compose.ui.tooling.preview.Preview import androidx.lifecycle.Lifecycle import androidx.lifecycle.flowWithLifecycle import androidx.lifecycle.lifecycleScope import androidx.lifecycle.repeatOnLifecycle import com.coroutines.advanced.coroutineInUiLayer.ui.theme.CoroutineUltimateGuideTheme import com.raywenderlich.android.disneyexplorer.common.utils.FlowUtils import kotlinx.coroutines.flow.collect import kotlinx.coroutines.launch class UiLayerActivity : AppCompatActivity() { override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) setContent { CoroutineUltimateGuideTheme { // A surface container using the 'background' color from the theme Surface( modifier = Modifier.fillMaxSize(), color = MaterialTheme.colorScheme.background, ) { Greeting2("Android") } } } } private fun runProcessingWithFlow() { lifecycleScope.launch { repeatOnLifecycle(Lifecycle.State.STARTED) { FlowUtils.testDataFlow().collect { println("Flow: value is: $it") } } } } private fun runProcessingWithAFlow() { lifecycleScope.launch { FlowUtils.testDataFlow().flowWithLifecycle(lifecycle, Lifecycle.State.STARTED) .collect { println("Flow: value is $it") } } } } @Composable fun Greeting2(name: String, modifier: Modifier = Modifier) { Text( text = "Hello $name!", modifier = modifier, ) } @Preview(showBackground = true) @Composable fun GreetingPreview2() { CoroutineUltimateGuideTheme { Greeting2("Android") } }
coroutine-ultimate-guild/advanced/src/main/java/com/coroutines/advanced/coroutineInUiLayer/UiLayerActivity.kt
2305977552
package com.coroutines.advanced.coroutineInUiLayer.common.utiles import android.content.Context import android.widget.Toast fun Context.showToast(text: String) { Toast.makeText(this, text, Toast.LENGTH_SHORT).show() }
coroutine-ultimate-guild/advanced/src/main/java/com/coroutines/advanced/coroutineInUiLayer/common/utiles/Extensions.kt
3039705504
package com.coroutines.advanced.coroutineInUiLayer.common.utiles import kotlinx.coroutines.Dispatchers import kotlinx.coroutines.flow.flow import kotlinx.coroutines.flow.flowOn import kotlin.random.Random object FlowUtils { fun testDataFlow() = flow { while (true) { emit(Random.nextInt()) println("FLOW: Emitting item") kotlinx.coroutines.delay(500) } }.flowOn(Dispatchers.Default) }
coroutine-ultimate-guild/advanced/src/main/java/com/coroutines/advanced/coroutineInUiLayer/common/utiles/FlowUtils.kt
4104891789
package com.coroutines.advanced.coroutineInUiLayer.common.utiles import com.raywenderlich.android.disneyexplorer.common.utils.CoroutineContextProvider import kotlinx.coroutines.CoroutineDispatcher import kotlinx.coroutines.Dispatchers open class CoroutineContextProvider { open val mainDispatcher: CoroutineDispatcher = Dispatchers.Main open val ioDispatcher = Dispatchers.IO open val defaultDispatcher = Dispatchers.Default } class TestCoroutineContextProvider : CoroutineContextProvider() { override val mainDispatcher = Dispatchers.Unconfined override val ioDispatcher = Dispatchers.Unconfined override val defaultDispatcher = Dispatchers.Unconfined }
coroutine-ultimate-guild/advanced/src/main/java/com/coroutines/advanced/coroutineInUiLayer/common/utiles/CoroutineContextProvider.kt
2800463427
package com.coroutines.advanced.coroutineInUiLayer.data.networking import com.coroutines.advanced.coroutinesInAndroid.data.model.CharactersResponse class DisneyApiService(private val disneyApi: DisneyApi) { suspend fun getCharacters(): Result<CharactersResponse> = kotlin.runCatching { disneyApi.getCharacters() } }
coroutine-ultimate-guild/advanced/src/main/java/com/coroutines/advanced/coroutineInUiLayer/data/networking/DisneyApiService.kt
3352923998
package com.coroutines.advanced.coroutineInUiLayer.data.networking import com.coroutines.advanced.coroutinesInAndroid.data.model.CharactersResponse import retrofit2.http.GET interface DisneyApi { @GET("characters") suspend fun getCharacters(): CharactersResponse }
coroutine-ultimate-guild/advanced/src/main/java/com/coroutines/advanced/coroutineInUiLayer/data/networking/DisneyApi.kt
3739575896
package com.coroutines.advanced.sequencesAndIterators fun main() { val sequence = generatorFib().take(8) sequence.forEach { println("$it") } } fun generatorFib() = sequence { print("Suspending") yield(0L) // Yields a value to the Iterator being built and suspends until the next value is requested. var cur = 0L var next = 1L while (true) { print("Suspending...") yield(next) val tmp = cur + next cur = next next = tmp } }
coroutine-ultimate-guild/advanced/src/main/java/com/coroutines/advanced/sequencesAndIterators/GeneratingInfiniteSequence.kt
1331909431
package com.coroutines.advanced.sequencesAndIterators fun main() { val list = listOf(1, 2, 3) list.filter { print("filter,") it > 0 }.map { print("map, ") it.toString() }.forEach { print("forEach, ") } } /** * Collection interface inherits from Iterable interface. * Iterable<E> is non-lazy by default or eager-evaluated. * Thus, all collections are eager-evaluated. */
coroutine-ultimate-guild/advanced/src/main/java/com/coroutines/advanced/sequencesAndIterators/EagerEvaluationIterable.kt
1335474992
package com.coroutines.advanced.sequencesAndIterators fun main() { val sequence = singleValueExample() sequence.forEach { println(it) } } fun singleValueExample() = sequence { println("Printing first value") yield("Apple") println("printing second value") yield("Orange") println("printing third value") yield("Banana") }
coroutine-ultimate-guild/advanced/src/main/java/com/coroutines/advanced/sequencesAndIterators/YieldInSequence.kt
668070804
package com.coroutines.advanced.sequencesAndIterators fun main() { val sequence = iterableExample() sequence.forEach { print("$it ") } } fun iterableExample() = sequence { yieldAll(1..5) }
coroutine-ultimate-guild/advanced/src/main/java/com/coroutines/advanced/sequencesAndIterators/YieldAllInSequence.kt
4110787874
package com.coroutines.advanced.sequencesAndIterators fun main() { val sequence = sequenceExample().take(10) sequence.forEach { print("$it ") } } fun sequenceExample() = sequence { yieldAll(generateSequence(2) { it * 2 }) }
coroutine-ultimate-guild/advanced/src/main/java/com/coroutines/advanced/sequencesAndIterators/YieldAllInfinitSequence.kt
3213479910
package com.coroutines.advanced.sequencesAndIterators fun main() { val list = listOf(1, 2, 3) list.asSequence().filter { print("filter, ") it > 0 }.map { print("map, ") }.forEach { print("forEach, ") } } /** * Sequence is similar to Iterable from Java, except it performs lazily whenever possible. * The key difference lies in the semantics and the implementation of the Standard Library * extension functions for Iterable and Sequence, which both have a method called iterator. * */
coroutine-ultimate-guild/advanced/src/main/java/com/coroutines/advanced/sequencesAndIterators/LazyEvalutionSequence.kt
847482073
package com.coroutines.advanced.coroutineTest.contextProvider import kotlin.coroutines.CoroutineContext class CoroutineContextProviderImpl(private val context: CoroutineContext) : CoroutineContextProvider { override fun context(): CoroutineContext = context }
coroutine-ultimate-guild/advanced/src/main/java/com/coroutines/advanced/coroutineTest/contextProvider/CoroutineContextProviderImpl.kt
1749024753
package com.coroutines.advanced.coroutineTest.contextProvider import kotlin.coroutines.CoroutineContext interface CoroutineContextProvider { fun context(): CoroutineContext }
coroutine-ultimate-guild/advanced/src/main/java/com/coroutines/advanced/coroutineTest/contextProvider/CoroutineContextProvider.kt
854915555
package com.coroutines.advanced.coroutineTest.model data class User(val id: String, val name: String)
coroutine-ultimate-guild/advanced/src/main/java/com/coroutines/advanced/coroutineTest/model/User.kt
721662774
package com.coroutines.advanced.coroutineTest.view import com.coroutines.advanced.coroutineTest.contextProvider.CoroutineContextProvider import com.coroutines.advanced.coroutineTest.model.User import com.coroutines.advanced.coroutineTest.presentation.MainPresenter import kotlinx.coroutines.CoroutineScope import kotlinx.coroutines.launch class MainView( private val presenter: MainPresenter, private val contextProvider: CoroutineContextProvider, private val coroutineScope: CoroutineScope, ) { var userData: User? = null /** * Fetch user data: * context and scope for coroutine shouldn't be hardcoded so that we can pass * any scope that we want : actual scope for actual code and test scope for * test code * */ fun fetchUserData() { coroutineScope.launch(contextProvider.context()) { userData = presenter.getUser("101") } } fun printUserData() { println(userData) } }
coroutine-ultimate-guild/advanced/src/main/java/com/coroutines/advanced/coroutineTest/view/MainView.kt
3025264897
package com.coroutines.advanced.coroutineTest.presentation import com.coroutines.advanced.coroutineTest.model.User import kotlinx.coroutines.delay class MainPresenter { suspend fun getUser(userId: String): User { delay(1000) return User(userId, "Filip") } }
coroutine-ultimate-guild/advanced/src/main/java/com/coroutines/advanced/coroutineTest/presentation/MainPresenter.kt
1156455168
package com.example.coroutineultimateguide import androidx.test.platform.app.InstrumentationRegistry import androidx.test.ext.junit.runners.AndroidJUnit4 import org.junit.Test import org.junit.runner.RunWith import org.junit.Assert.* /** * Instrumented test, which will execute on an Android device. * * See [testing documentation](http://d.android.com/tools/testing). */ @RunWith(AndroidJUnit4::class) class ExampleInstrumentedTest { @Test fun useAppContext() { // Context of the app under test. val appContext = InstrumentationRegistry.getInstrumentation().targetContext assertEquals("com.example.coroutineultimateguide", appContext.packageName) } }
coroutine-ultimate-guild/app/src/androidTest/java/com/example/coroutineultimateguide/ExampleInstrumentedTest.kt
1411328074
package com.example.coroutineultimateguide import org.junit.Test import org.junit.Assert.* /** * Example local unit test, which will execute on the development machine (host). * * See [testing documentation](http://d.android.com/tools/testing). */ class ExampleUnitTest { @Test fun addition_isCorrect() { assertEquals(4, 2 + 2) } }
coroutine-ultimate-guild/app/src/test/java/com/example/coroutineultimateguide/ExampleUnitTest.kt
2526844276
package com.example.coroutineultimateguide.ui.theme import androidx.compose.ui.graphics.Color val Purple80 = Color(0xFFD0BCFF) val PurpleGrey80 = Color(0xFFCCC2DC) val Pink80 = Color(0xFFEFB8C8) val Purple40 = Color(0xFF6650a4) val PurpleGrey40 = Color(0xFF625b71) val Pink40 = Color(0xFF7D5260)
coroutine-ultimate-guild/app/src/main/java/com/example/coroutineultimateguide/ui/theme/Color.kt
862360906
package com.example.coroutineultimateguide.ui.theme import android.app.Activity import android.os.Build import androidx.compose.foundation.isSystemInDarkTheme import androidx.compose.material3.MaterialTheme import androidx.compose.material3.darkColorScheme import androidx.compose.material3.dynamicDarkColorScheme import androidx.compose.material3.dynamicLightColorScheme import androidx.compose.material3.lightColorScheme import androidx.compose.runtime.Composable import androidx.compose.runtime.SideEffect import androidx.compose.ui.graphics.toArgb import androidx.compose.ui.platform.LocalContext import androidx.compose.ui.platform.LocalView import androidx.core.view.WindowCompat private val DarkColorScheme = darkColorScheme( primary = Purple80, secondary = PurpleGrey80, tertiary = Pink80 ) private val LightColorScheme = lightColorScheme( primary = Purple40, secondary = PurpleGrey40, tertiary = Pink40 /* Other default colors to override background = Color(0xFFFFFBFE), surface = Color(0xFFFFFBFE), onPrimary = Color.White, onSecondary = Color.White, onTertiary = Color.White, onBackground = Color(0xFF1C1B1F), onSurface = Color(0xFF1C1B1F), */ ) @Composable fun CoroutineUltimateGuideTheme( darkTheme: Boolean = isSystemInDarkTheme(), // Dynamic color is available on Android 12+ dynamicColor: Boolean = true, content: @Composable () -> Unit ) { val colorScheme = when { dynamicColor && Build.VERSION.SDK_INT >= Build.VERSION_CODES.S -> { val context = LocalContext.current if (darkTheme) dynamicDarkColorScheme(context) else dynamicLightColorScheme(context) } darkTheme -> DarkColorScheme else -> LightColorScheme } val view = LocalView.current if (!view.isInEditMode) { SideEffect { val window = (view.context as Activity).window window.statusBarColor = colorScheme.primary.toArgb() WindowCompat.getInsetsController(window, view).isAppearanceLightStatusBars = darkTheme } } MaterialTheme( colorScheme = colorScheme, typography = Typography, content = content ) }
coroutine-ultimate-guild/app/src/main/java/com/example/coroutineultimateguide/ui/theme/Theme.kt
1433903497
package com.example.coroutineultimateguide.ui.theme import androidx.compose.material3.Typography import androidx.compose.ui.text.TextStyle import androidx.compose.ui.text.font.FontFamily import androidx.compose.ui.text.font.FontWeight import androidx.compose.ui.unit.sp // Set of Material typography styles to start with val Typography = Typography( bodyLarge = TextStyle( fontFamily = FontFamily.Default, fontWeight = FontWeight.Normal, fontSize = 16.sp, lineHeight = 24.sp, letterSpacing = 0.5.sp ) /* Other default text styles to override titleLarge = TextStyle( fontFamily = FontFamily.Default, fontWeight = FontWeight.Normal, fontSize = 22.sp, lineHeight = 28.sp, letterSpacing = 0.sp ), labelSmall = TextStyle( fontFamily = FontFamily.Default, fontWeight = FontWeight.Medium, fontSize = 11.sp, lineHeight = 16.sp, letterSpacing = 0.5.sp ) */ )
coroutine-ultimate-guild/app/src/main/java/com/example/coroutineultimateguide/ui/theme/Type.kt
2976983348
package com.example.coroutineultimateguide import android.os.Bundle import androidx.activity.ComponentActivity import androidx.activity.compose.setContent import androidx.compose.foundation.layout.fillMaxSize import androidx.compose.material3.MaterialTheme import androidx.compose.material3.Surface import androidx.compose.material3.Text import androidx.compose.runtime.Composable import androidx.compose.ui.Modifier import androidx.compose.ui.tooling.preview.Preview import com.example.coroutineultimateguide.ui.theme.CoroutineUltimateGuideTheme class MainActivity : ComponentActivity() { override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) setContent { CoroutineUltimateGuideTheme { // A surface container using the 'background' color from the theme Surface( modifier = Modifier.fillMaxSize(), color = MaterialTheme.colorScheme.background, ) { Greeting("Android") } } } } } @Composable fun Greeting(name: String, modifier: Modifier = Modifier) { Text( text = "Hello $name!", modifier = modifier, ) } @Preview(showBackground = true) @Composable fun GreetingPreview() { CoroutineUltimateGuideTheme { Greeting("Android") } }
coroutine-ultimate-guild/app/src/main/java/com/example/coroutineultimateguide/MainActivity.kt
2926123868
package com.example.brainrealm import androidx.test.platform.app.InstrumentationRegistry import androidx.test.ext.junit.runners.AndroidJUnit4 import org.junit.Test import org.junit.runner.RunWith import org.junit.Assert.* /** * Instrumented test, which will execute on an Android device. * * See [testing documentation](http://d.android.com/tools/testing). */ @RunWith(AndroidJUnit4::class) class ExampleInstrumentedTest { @Test fun useAppContext() { // Context of the app under test. val appContext = InstrumentationRegistry.getInstrumentation().targetContext assertEquals("com.example.brainrealm", appContext.packageName) } }
BrainRealm/app/src/androidTest/java/com/example/brainrealm/ExampleInstrumentedTest.kt
3682388152
package com.example.brainrealm import org.junit.Test import org.junit.Assert.* /** * Example local unit test, which will execute on the development machine (host). * * See [testing documentation](http://d.android.com/tools/testing). */ class ExampleUnitTest { @Test fun addition_isCorrect() { assertEquals(4, 2 + 2) } }
BrainRealm/app/src/test/java/com/example/brainrealm/ExampleUnitTest.kt
3224982315
package com.example.brainrealm.Database import android.net.Uri import android.util.Log import androidx.lifecycle.LiveData import androidx.lifecycle.MutableLiveData import com.example.brainrealm.Models.UserModel import com.google.android.gms.tasks.Task import com.google.firebase.auth.AuthResult import com.google.firebase.auth.FirebaseAuth import com.google.firebase.firestore.FirebaseFirestore import com.google.firebase.firestore.QuerySnapshot import com.google.firebase.storage.FirebaseStorage import com.google.firebase.storage.UploadTask class UserRepository { private val firebaseAuth: FirebaseAuth = FirebaseAuth.getInstance() private val firestore: FirebaseFirestore = FirebaseFirestore.getInstance() private val storageReference = FirebaseStorage.getInstance().reference // Sign in user with email and password fun signIn(email: String, password: String): Task<AuthResult> { return firebaseAuth.signInWithEmailAndPassword(email, password) } // Create a new user with email and password fun createUser(email: String, password: String): Task<AuthResult> { return firebaseAuth.createUserWithEmailAndPassword(email, password) } // Upload user image to Firebase Storage fun uploadImage(imageUri: Uri, userId: String): UploadTask { val userImageRef = storageReference.child("user_images/$userId.jpg") return userImageRef.putFile(imageUri) } // Get user data from Firestore fun getUserData(userId: String): LiveData<UserModel?> { val userData = MutableLiveData<UserModel?>() // Create a reference to the Firestore document val userDocRef = FirebaseFirestore.getInstance().collection("users").document(userId) // Retrieve data from userDocRef userDocRef.get() .addOnSuccessListener { document -> if (document.exists()) { // Convert the document data to UserModel val userModel = document.toObject(UserModel::class.java) // If UserModel is not null, create a new UserModel with necessary updates val updatedUserModel = userModel?.copy(fullName = document.getString("fullName")) userData.value = updatedUserModel } else { // If no document in Firestore or an error occurs, update LiveData with null value userData.value = null } } .addOnFailureListener { exception -> // Update LiveData with null value in case of an error userData.value = null } return userData } // Get all users from Firestore fun getAllUsers(): LiveData<List<UserModel>> { val usersLiveData = MutableLiveData<List<UserModel>>() // Retrieve all documents from the Firestore collection FirebaseFirestore.getInstance().collection("users") .get() .addOnSuccessListener { documents -> val userList = mutableListOf<UserModel>() for (document in documents) { // Convert each document to UserModel and add to the list val userModel = document.toObject(UserModel::class.java) userList.add(userModel) } Log.d("repoTest", userList.size.toString()) // Update LiveData usersLiveData.value = userList } .addOnFailureListener { exception -> // Handle operations in case of an error here Log.e("Firestore", "Error getting all users: $exception") } return usersLiveData } // Get all images for a specific user from Firebase Storage fun getAllImagesForUser(userId: String): LiveData<List<String>> { val imagesLiveData = MutableLiveData<List<String>>() // Get the Firebase Storage reference val storage = FirebaseStorage.getInstance() val storageRef = storage.reference // Get the UID of the current user val currentUserId = userId // Path where the user's profile image is stored val imagesPath = "user_images/$currentUserId.jpg" // Retrieve all images from a specific directory in Storage storageRef.child(imagesPath) .listAll() .addOnSuccessListener { result -> val imageList = result.items.map { it.toString() } Log.d("imageTestRepo", imageList.size.toString()) imagesLiveData.value = imageList } .addOnFailureListener { exception -> // Handle operations in case of an error here Log.e("FirebaseStorage", "Error getting user images: $exception") } return imagesLiveData } }
BrainRealm/app/src/main/java/com/example/brainrealm/Database/UserRepository.kt
1785048252
package com.example.brainrealm import androidx.appcompat.app.AppCompatActivity import android.os.Bundle import android.util.Log import android.widget.ImageView import androidx.lifecycle.ViewModelProvider import com.example.brainrealm.Adapters.LeaderListAdapter import com.example.brainrealm.Models.UserModel import com.example.brainrealm.Models.UserViewModel import com.example.brainrealm.databinding.ActivityNotificationsBinding import com.example.brainrealm.databinding.ActivityQuestionBinding import com.google.firebase.auth.FirebaseAuth import com.google.firebase.storage.FirebaseStorage import com.squareup.picasso.Picasso class Notifications : AppCompatActivity() { lateinit var binding : ActivityNotificationsBinding private lateinit var userViewModel: UserViewModel override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) binding = ActivityNotificationsBinding.inflate(layoutInflater) setContentView(binding.root) userViewModel = ViewModelProvider(this).get(UserViewModel::class.java) val currentUser = FirebaseAuth.getInstance().currentUser val userId = currentUser?.uid.orEmpty() userViewModel.getUserData().observe(this, { userData -> userData?.let { updateUI(it) } }) loadImageFromFirebaseStorage(userId.toString() , binding.notificationsUseImage) } private fun updateUI(userModel: UserModel) { binding.notificationsCoin.text = userModel.coin.toString() Log.d("salam",userModel.fullName.toString()) binding.notificationsFullName.text = userModel.fullName.toString() } fun loadImageFromFirebaseStorage(userId: String?, imageView: ImageView) { // Firebase Storage referansını al val storage = FirebaseStorage.getInstance() val storageRef = storage.reference // Kullanıcının UID'sini al val currentUserId = userId ?: FirebaseAuth.getInstance().currentUser?.uid // Kullanıcının profil resminin bulunduğu yol val imagePath = "user_images/$currentUserId.jpg" // Storage'de bulunan resmin referansını al val imageRef = storageRef.child(imagePath) // Resmin URL'sini al imageRef.downloadUrl .addOnSuccessListener { uri -> val imageUrl = uri.toString() // imageUrl'i kullanarak ImageView'e resmi yükle (örneğin Picasso kütüphanesi kullanılabilir) // Not: Picasso kullanmak için build.gradle dosyanıza şu bağımlılığı ekleyin: implementation 'com.squareup.picasso:picasso:2.71828' Picasso.get().load(imageUrl).into(imageView) } .addOnFailureListener { exception -> // Hata durumunda işlemleri burada yönetebilirsiniz Log.e("FirebaseStorage", "Error getting image URL: $exception") } } }
BrainRealm/app/src/main/java/com/example/brainrealm/Notifications.kt
2013758668
package com.example.brainrealm import android.app.Activity import android.content.Context import android.content.Intent import android.net.Uri import androidx.appcompat.app.AppCompatActivity import android.os.Bundle import android.widget.Toast import androidx.lifecycle.ViewModelProvider import com.example.brainrealm.Models.UserViewModel import com.example.brainrealm.databinding.ActivitySettingsBinding import com.google.firebase.auth.FirebaseAuth private const val PREFS_NAME = "MyPreferences" @Suppress("DEPRECATION") class Settings : AppCompatActivity() { lateinit var binding : ActivitySettingsBinding private lateinit var userViewModel: UserViewModel private val PICK_IMAGE_REQUEST = 1 private val userId = FirebaseAuth.getInstance().currentUser?.uid override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) binding = ActivitySettingsBinding.inflate(layoutInflater) setContentView(binding.root) userViewModel = ViewModelProvider(this).get(UserViewModel::class.java) fullNameSave(userId.toString() , "Mehdi Israfilov") startImagePicker() } private fun startImagePicker() { val intent = Intent(Intent.ACTION_GET_CONTENT) intent.type = "image/*" startActivityForResult(intent, PICK_IMAGE_REQUEST) } override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) { super.onActivityResult(requestCode, resultCode, data) if (requestCode == PICK_IMAGE_REQUEST && resultCode == Activity.RESULT_OK && data != null) { val imageUri: Uri? = data.data if (imageUri != null) { userViewModel.uploadImage(imageUri, userId.toString()) } else { Toast.makeText(this, "Seçilen resim URI'si null.", Toast.LENGTH_SHORT).show() } } } private fun fullNameSave(userId: String ,fullName: String) { val sharedPreferences = getSharedPreferences(PREFS_NAME, Context.MODE_PRIVATE) val editor = sharedPreferences.edit() editor.putString(userId, fullName) editor.apply() } }
BrainRealm/app/src/main/java/com/example/brainrealm/Settings.kt
1436421001
package com.example.brainrealm import android.content.Intent import androidx.appcompat.app.AppCompatActivity import android.os.Bundle import android.util.Log import android.view.animation.Animation import android.view.animation.AnimationUtils import com.example.brainrealm.databinding.ActivityMainBinding class MainActivity : AppCompatActivity() { lateinit var binding: ActivityMainBinding override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) binding = ActivityMainBinding.inflate(layoutInflater) setContentView(binding.root) // Load Animation val rocketAnimation = AnimationUtils.loadAnimation(this, R.anim.rocket_animation) // Set Animation Listener rocketAnimation.setAnimationListener(object : Animation.AnimationListener { override fun onAnimationStart(animation: Animation?) { // Animasyon başladığında yapılacak işlemler (isteğe bağlı) } override fun onAnimationEnd(animation: Animation?) { // Animasyon bittiğinde yapılacak işlemler startLoginActivity() } override fun onAnimationRepeat(animation: Animation?) { // Animasyon tekrarlandığında yapılacak işlemler (isteğe bağlı) } }) // Start Animation binding.splashScreenRocket.startAnimation(rocketAnimation) } private fun startLoginActivity() { val intent = Intent(this, Login::class.java) startActivity(intent) finish() } }
BrainRealm/app/src/main/java/com/example/brainrealm/MainActivity.kt
379228151
package com.example.brainrealm data class QuestionModel(val text: String, val options: List<String>, val correctAnswer: String)
BrainRealm/app/src/main/java/com/example/brainrealm/QuestionModel.kt
680330694