2x screen : show presentation

gistfile1.txt

private var presentation: DefaultPresentation? = null

override fun onCreate(savedInstanceState: Bundle?) {
    super.onCreate(savedInstanceState)
    [...]
    getCustomerDisplay(this)?.let { display ->
        presentation = DefaultPresentation(display, applicationContext)
        presentation?.setImage(uri)
    }
}

override fun onResume() {
    presentation?.show()
    super.onResume()
}

override fun onPause() {
    presentation?.hide()
    super.onPause()
}