MainViewModel.kt

enum class IconStatus {
    DEFAULT, DARK
}

fun updateAppIcon(packageManager: PackageManager, status: IconStatus) {
    for (value in IconStatus.values()) {
        val action = if (value == status) {
            PackageManager.COMPONENT_ENABLED_STATE_ENABLED
        } else {
            PackageManager.COMPONENT_ENABLED_STATE_DISABLED
        }
        packageManager.setComponentEnabledSetting(
            ComponentName(BuildConfig.APPLICATION_ID, "${BuildConfig.APPLICATION_ID}.${value.name}"),
            action, PackageManager.DONT_KILL_APP
        )
    }
}