I have an existing android application and i have integrated flutter in my project i want to call a flutter specific route which i define in my main method like this
Just create a method channel and call a flutter function from Android. In that function navigate your app from flutter to where ever you want.
for more info about how to use method channels to communicate between flutter and native code and vice versa. Please have a look
https://flutter.dev/docs/development/platform-integration/platform-channels