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Kotlin (MainActivity.kt) – Only safe (?.) or non-null asserted (!!.) calls are allowed on a nullable receiver of type FlutterEngine?

e: C:flutterPOCcontactsandroidappsrcmainkotlincomexamplecontactsMainActivity.kt: (98, 58): Only safe (?.) or non-null asserted (!!.) calls are allowed on a nullable receiver of type FlutterEngine? FAILURE: Build failed with an exception. What went wrong: Execution failed for task ':app:compileDebugKotlin'. A failure occurred while executing…

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Android Studio – Is there a way to avoid memory leak when executing a code that outlive the caller

Hello hope someone can help me. Problem: In code #1. The code inside "onListenerDisconnected" will not finish executing because the coroutine will be cancelled via onDestroy. code #1 @AndroidEntryPoint class NotificationService : NotificationListenerService() { @Inject lateinit var updateIsNotificationServiceActiveUseCase: UpdateIsNotificationServiceActiveUseCase private…

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How can I access a JSON file in the ViewModel class?

I'm trying to load a RecyclerView with JSON data in a local file located in 'assets'. Activity: class RecipesActivity : AppCompatActivity(), RecipeAdapter.RecipeItemListener { private lateinit var binding : ActivityRecipesBinding override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) binding = ActivityRecipesBinding.inflate(layoutInflater) setContentView(binding.root) setSupportActionBar(binding.mainToolBar.toolbar)…

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