How to set margin for a Button in Flutter

Question

I am just creating a form in Flutter. I am not able to set the top margin for the button.

class _MyHomePageState extends State<MyHomePage> {  String firstname;  String lastname; final scaffoldKey = new GlobalKey<ScaffoldState>(); final formKey = new GlobalKey<FormState>();       @override   Widget build(BuildContext context) {     return new Scaffold(       key: scaffoldKey,       appBar: new AppBar(         title: new Text('Validating forms'),       ),       body: new Padding(         padding: const EdgeInsets.all(16.0),         child: new Form(           key: formKey,           child: new Column(             children: [               new TextFormField(                 decoration: new InputDecoration(labelText: 'First Name'),                 validator: (val) =>                     val.length == 0 ?"Enter FirstName" : null,                 onSaved: (val) => firstname = val,               ),               new TextFormField(                 decoration: new InputDecoration(labelText: 'Password'),                 validator: (val) =>                     val.length ==0 ? 'Enter LastName' : null,                 onSaved: (val) => lastname = val,                 obscureText: true,               ),               new RaisedButton(                 onPressed: _submit,                 child: new Text('Login'),               ),             ],           ),         ),       ),     );   } 

Answer 1

Put your button inside a Container and then set the margin

new Container(     margin: const EdgeInsets.only(top: 10.0),     child : new RaisedButton(                 onPressed: _submit,                 child: new Text('Login'),               ),