// BaseActivity의 attachBaseContext
override fun attachBaseContext(newBase: Context?) {
    super.attachBaseContext(LocaleWrapper.wrap(newBase))
    SplitCompat.install(this)
}
// BaseActivity splitInstallManager, splitInstallListener
val splitInstallManager: SplitInstallManager by lazy { SplitInstallManagerFactory.create(this) }
private val splitInstallListener by lazy {
    SplitInstallStateUpdatedListener { state ->
        when (state.status()) {
            SplitInstallSessionStatus.FAILED -> {
                hideQandaProgressbar()
            }
            SplitInstallSessionStatus.INSTALLED -> {
                restartApp(this, LoadingActivity::class.java)
            }
        }
    }
}
// BaseActivity onCreate()
splitInstallManager.registerListener(splitInstallListener)
// BaseActivity onDestroy()
splitInstallManager.unregisterListener(splitInstallListener)