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Multi-Modules

Доклады:

• Властелин модулей (Mobius)
• 011. Многомодульность и Dagger 2 – Владимир Тагаков - YouTube
• Денис Неклюдов — Как не состариться во время сборки: Kapt и другие приключения - YouTube
• Modularizing Android Applications - Marvin Ramin - YouTube

Статьи:

• Многомодульность в Android с точки зрения архитектуры. От А до Я / «Лаборатория Касперского» corporate blog / Habr
• Многомодульность и Dagger 2. Лекция Яндекса / Яндекс corporate blog / Habr

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/**
 * [CoroutineScope] tied to this [LifecycleOwner]'s [Lifecycle].
 *
 * This scope will be cancelled when the [Lifecycle] is destroyed.
 *
 * This scope is bound to
 * [Dispatchers.Main.immediate][kotlinx.coroutines.MainCoroutineDispatcher.immediate].
 */
public val LifecycleOwner.lifecycleScope: LifecycleCoroutineScope
    get() = lifecycle.coroutineScope

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dependencies {
    ...
    implementation("org.jetbrains.kotlinx:kotlinx-coroutines-android:1.7.1")
    implementation("androidx.lifecycle:lifecycle-runtime-ktx:2.6.2")
}

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fun receiveData(): String {
    // Long synchronous work is performed here.
    return "Data received"
}

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21:58:23.164 27359-27359 TAG                     Data received after 9685.0434 ms.
21:58:23.168 27359-27359 TAG                     onCreate completed

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class MainActivity : AppCompatActivity() {

    private lateinit var binding: ActivityMainBinding

    @OptIn(ExperimentalTime::class)
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)

        binding = ActivityMainBinding.inflate(layoutInflater)
        setContentView(binding.root)

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22:03:56.665 27504-27504 TAG                     onCreate completed
22:04:06.166 27504-27529 TAG                     Data received after 9491.5399 ms.
22:04:06.168 27504-27529 AndroidRuntime          FATAL EXCEPTION: Thread-2
                                                 java.lang.NullPointerException: Can't toast on a thread that has not called Looper.prepare()

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22:10:09.755 27650-27650 TAG                     onCreate completed
22:10:18.776 27650-27675 TAG                     Data received after 9006.3558 ms.
22:10:18.797 27650-27675 AndroidRuntime          FATAL EXCEPTION: DefaultDispatcher-worker-1
                                                 java.lang.NullPointerException: Can't toast on a thread that has not called Looper.prepare()

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suspend fun receiveData(): String {
    withContext(Dispatchers.IO) {
        // Long asynchronous work is performed here.
    }
    return "Data received"
}

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22:28:45.709 28976-28976 TAG                     onCreate completed
22:29:11.505 28976-28976 TAG                     Data received after 25069.8728 ms.