broadcast-receiver.kt

// Can you spot any issues with code?
class MyBroadcastReceiverActivity : AppCompatActivity() {
    private var broadcastReceiver: BroadcastReceiver? = null
    override fun onCreate(@Nullable savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_one)
    }

    private fun registerBroadCastReceiver() {
        broadcastReceiver = object : BroadcastReceiver() {
            override fun onReceive(context: Context, intent: Intent?) {
                // Do some UI work
            }
        }
        registerReceiver(broadcastReceiver, IntentFilter("currency-changed-event"))
    }

    override fun onStart() {
        super.onStart()
        registerBroadCastReceiver()
    }
}