alert method

void alert (BuildContext context, String title, String message, [ Function callback ])

Implementation

static void alert(BuildContext context, String title, String message, [Function callback]) {
  showDialog(
    context: context,
    barrierDismissible: false,
    builder: (BuildContext context) {
      return AlertDialog(
        title: Text(title),
        content: Text(message),
        actions: <Widget>[
          FlatButton(
            child: new Text("Ok"),
            onPressed: () {
              if (callback != null) {
                callback(true);
              }
              Navigator.of(context).pop();
            },
          ),
        ],
      );
    },
  );
}