This is a sample Gist of MainActivity class for Dynamic Feature Module Delivery. Full repository: https://github.com/hasancse91/dynamic-feature-module-android

MainActivity (Dynamic Feature Module).kt

class MainActivity : ComponentActivity(), DynamicModuleListener {

    private val CUSTOMER_SUPPORT_DYNAMIC_MODULE = "customer_support"
    private lateinit var dynamicModuleDownloadUtil: DynamicModuleDownloadUtil
    private var logState = mutableStateOf("Activity Log:\n")

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

        dynamicModuleDownloadUtil = DynamicModuleDownloadUtil(baseContext, this)

        // ui codes
    }

override fun onDownloading() {
        logState.value += "${getCurrentTimestamp()}: Downloading...\n"
    }

    override fun onDownloadCompleted() {
        logState.value += "${getCurrentTimestamp()}: Module download completed.\n"
    }

    override fun onInstallSuccess() {
        logState.value += "${getCurrentTimestamp()}: Module install Success!\n"
        startCustomerSupportActivity()
    }

    override fun onFailed() {
        logState.value += "${getCurrentTimestamp()}: Module download or installation failed.\n"
    }

    private fun openCustomerSupportFeature() {
        if (dynamicModuleDownloadUtil.isModuleDownloaded(CUSTOMER_SUPPORT_DYNAMIC_MODULE)) {
            logState.value += "${getCurrentTimestamp()}: Module is already downloaded.\n"
            startCustomerSupportActivity()
        } else {
            dialogState.value = true
        }
    }

    private fun startCustomerSupportActivity() {
        val intent = Intent()
        intent.setClassName(
            "com.hellohasan.hasanerrafkhata",
            "com.hellohasan.customer_support.CustomerSupportActivity"
        )
        startActivity(intent)
    }
}