Flutter how to programmatically exit the app

Question

How can I programmatically close a Flutter application. I\'ve tried popping the only screen but that results in a black screen.

Answer 1

This worked for me;

import 'dart:io';

@override
Widget build(BuildContext context) {
  return new Scaffold(
    appBar: new AppBar(
      title: new Text(widget.title),
    ),
    body: new ... (...),
      floatingActionButton: new FloatingActionButton(
        onPressed: ()=> exit(0),
        tooltip: 'Close app',
        child: new Icon(Icons.close),
      ), 
  );
}