How to port ScrollView written in kotlin to flutter The question is difficult to understand due to machine translation. Sorry. Scrolling view with scaling and panning in Kotlin. I would like to port this to flutter, but GestureLisner is not working and I don't know how to solve it. The XML Layout itself is displayed, but the GestureLisner for scaling and panning is not detected. Can anyone help me with a solution? Below is the code created in Kotlin. We are aiming to port this. class MainActivity : AppCompatActivity() { private lateinit var...