Flutter: How to open Drawer programmatically

Question

I want to open Drawer programmatically not by sliding it, how to disable that sliding functionality (touch functionality of Drawer)

Answer 1

You'll need to create a GlobalKey and use openDrawer() method on it.

GlobalKey _drawerKey = GlobalKey();

@override
Widget build(BuildContext context) {
  return Scaffold(
    key: _drawerKey, // assign key to Scaffold
    drawer: Drawer(),
    floatingActionButton: FloatingActionButton(
      onPressed: () => _drawerKey.currentState.openDrawer(), // open drawer
    ),
  );
}