flutter how to create copy button
RaisedButton(
child: Text('Copy'),
onPressed: () {
ClipboardManager.copyToClipBoard(
_variableContainingString)
.then((result) {
final snackBar = SnackBar(
content: Text('Copied to Clipboard'),
action: SnackBarAction(
label: 'Undo',
onPressed: () {},
),
);
Scaffold.of(context).showSnackBar(snackBar);
});
},
),