How do you access the FlutterBinaryMessenger in the AppDelegate on the Swift side of a MacOS Flutter application? In all the examples I have found, the AppDelegate is just a placeholder. You need to get the FlutterBinaryMessenger to instantiate a FlutterMethodChannel to actually communicate to the Dart side.
In the current macOS template, the
FlutterViewController (which lets you get the messenger, via
.engine.binaryMessenger) is owned by the window, not the application. If you want to access it from the
AppDelegate you’ll need to wire up a connection between
Answered By – smorgan
Answer Checked By – Senaida (FlutterFixes Volunteer)