manuelvicnt

class MusicPlayer @Inject constructor() {
  fun play(id: String) { ... }
}

manuelvicnt

@AndroidEntryPoint
class PlayActivity : AppCompatActivity() {

  @Inject lateinit var player: MusicPlayer

  override fun onCreate(savedInstanceState: Bundle) {
    super.onCreate(bundle)
    player.play("YHLQMDLG")
  }
}

manuelvicnt

@HiltAndroidApp
class MusicApp : Application()

@AndroidEntryPoint
class PlayActivity : AppCompatActivity() { /* ... */ }

manuelvicnt

class FeedViewModel(
    private val loadCurrentMomentUseCase: LoadCurrentMomentUseCase,
    loadAnnouncementsUseCase: LoadAnnouncementsUseCase,
    private val loadStarredAndReservedSessionsUseCase: LoadStarredAndReservedSessionsUseCase,
    getTimeZoneUseCase: GetTimeZoneUseCase,
    getConferenceStateUseCase: GetConferenceStateUseCase,
    private val timeProvider: TimeProvider,
    private val analyticsHelper: AnalyticsHelper,
    private val signInViewModelDelegate: SignInViewModelDelegate,
    themedActivityDelegate: ThemedActivityDelegate,

manuelvicnt

// NOTE: This code uses Compose 1.0.0-beta09

import androidx.compose.foundation.Canvas
import androidx.compose.foundation.layout.BoxWithConstraints
import androidx.compose.foundation.layout.padding
import androidx.compose.foundation.layout.size
import androidx.compose.material.MaterialTheme
import androidx.compose.material.Text
import androidx.compose.runtime.Composable
import androidx.compose.runtime.getValue

manuelvicnt

class LocationActivity : AppCompatActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)

        someLocationProvider.locations.launchAndCollectIn(this, STARTED) {
            // New location! Update the map
        }
    }
}

manuelvicnt

/* Copyright 2022 Google LLC.	
   SPDX-License-Identifier: Apache-2.0 */
inline fun <T> Flow<T>.launchAndCollectIn(
    owner: LifecycleOwner,
    minActiveState: Lifecycle.State = Lifecycle.State.STARTED,
    crossinline action: suspend CoroutineScope.(T) -> Unit
) = owner.lifecycleScope.launch {
        owner.repeatOnLifecycle(minActiveState) {
            collect {
                action(it)

manuelvicnt

class LocationActivity : AppCompatActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)

        lifecycleScope.launch {
            someLocationProvider.locations
                .flowWithLifecycle(lifecycle, STARTED)
                .collect {
                    // New location! Update the map
                }

manuelvicnt

class LocationActivity : AppCompatActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)

        val job = lifecycleScope.launch {

            doSomeSuspendInitWork()

            // DANGEROUS! This API doesn't preserve the calling Context!
            // It won't get cancelled when the parent coroutine is cancelled!

manuelvicnt

class LocationActivity : AppCompatActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)

        lifecycleOwner.addRepeatingJob(Lifecycle.State.STARTED) {
            someLocationProvider.locations.collect {
                // New location! Update the map
            }
        }
    }