override fun onViewCreated(view: View?, savedInstanceState: Bundle?) {
        super.onViewCreated(view, savedInstanceState)
        if (BuildConfig.APP_TYPE == AppType.MASTER) {
            login_button.setOnClickListener {
                QRCodeReaderActivity.launch(context, navigateMessageId = R.string.navigate_message_login)
                activity.finish()
            }
        } else {
            login_button.visibility = View.GONE
        }
        list_button.setOnClickListener {
            DeviceListActivity.launch(context)
        }
    }