How do I test a flutter (mobile) app with Appium?

I will automate the test using the Flutter app in appium.
I want to use java-Bdd.

I could not find any sample project that is already working, I need help in this regard. - I would be very pleased if a working git project is shared.

Problems I cannot solve:strong text
-I can’t see elements in flutter application with app inspector.
how can i see this?

Is my approach correct?

Thank you in advance for your support