show alert dialog flutter code example
Example 1: flutter alertdialog
Future<void> _showMyDialog() async {
return showDialog<void>(
context: context,
barrierDismissible: false,
builder: (BuildContext context) {
return AlertDialog(
title: Text('AlertDialog Title'),
content: SingleChildScrollView(
child: ListBody(
children: <Widget>[
Text('This is a demo alert dialog.'),
Text('Would you like to approve of this message?'),
],
),
),
actions: <Widget>[
TextButton(
child: Text('Approve'),
onPressed: () {
Navigator.of(context).pop();
},
),
],
);
},
);
}
Example 2: flutter alertdialog
create a methos _showDialog
then call it in your state
void _showDialog() {
showDialog(
context: context,
builder: (BuildContext context) {
return AlertDialog(
title: new Text("Alert Dialog title"),
content: new Text("Alert Dialog body"),
actions: <Widget>[
new FlatButton(
child: new Text("Close"),
onPressed: () {
Navigator.of(context).pop();
},
),
],
);
},
);
}
Example 3: alertdialog flutter
showAlertDialog(BuildContext context) {
Widget okButton = FlatButton(
child: Text("OK"),
onPressed: () { },
);
AlertDialog alert = AlertDialog(
title: Text("My title"),
content: Text("This is my message."),
actions: [
okButton,
],
);
showDialog(
context: context,
builder: (BuildContext context) {
return alert;
},
);
}