Is it allowed to put ActivityContext/ApplicationContext in a variable? Please tell me is it allowed to put ActivityContext/ApplicationContext in a variable as shown in the code below? class MainActivity : Activity() { private val context = applicationContext override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) setContentView(R.layout.activity_main) } } As you know in Android, the roots of the garbage collector are: static variables and active threads. Case 1. We put applicationContext in the...