showAlertDialog function
Implementation
showAlertDialog(BuildContext context) {
// set up the buttons
Widget remindButton = TextButton(
child: Text("Try Again"),
onPressed: () {Navigator.of(context).pop();},
);
// set up the AlertDialog
AlertDialog alert = AlertDialog(
title: Text("Error"),
content: Text("Incorrect Username or Password!"),
actions: [
remindButton,
],
);
// show the dialog
showDialog(
context: context,
builder: (BuildContext context) {
return alert;
},
);
}