flutter_dropdown_alert

A dropdown alert package for flutter

Dropdown alert will help to notify to user when you call api success, error or something like that, such as in app notification. It's will similar with push notification but you can custom more than that. You can show alert at anywhere without widget.

Demo

Top:

Bottom:

How to use it.

# pubspec.yaml

dependencies:
  flutter:
    sdk: flutter
  flutter_dropdown_alert: <last-version>

Just create a Stack widget and add DropdownAlert() inside MaterialApp which should be in main.dart like this:

import 'package:flutter_dropdown_alert/dropdown_alert.dart';

 MaterialApp(
       title: 'Dropdown Alert Demo',
       theme: ThemeData(
         visualDensity: VisualDensity.adaptivePlatformDensity,
       ),
       builder: (context, child) => Stack(
         children: [
            child!,
            DropdownAlert()
         ],
       ),
       home: MyHomePage(title: 'Flutter Dropdown Alert Demo'),
     );

Full example source code:

https://github.com/vantuan88291/flutter_bloc_modular

Show alert anywhere, even inside bloc without widget:

Next, import 'alert_controller.dart' into your dart code

import 'package:flutter_dropdown_alert/alert_controller.dart';

   AlertController.show("Title", "message here!", TypeAlert.success, payload);

The payload param is Map<String, dynamic>, this param is optional, should use to give data into the alert and get it when click on alert.

Hide alert:

The alert will automatically hide, but if you use delayDismiss: 0, it will freeze and not auto hide, you have to hide the alert by this code:

   AlertController.hide();

Listener when click on alert:

There are 2 ways to do that:

• Using listener of controller, put this code inside initState() of widget:

   AlertController.onTabListener((Map<String, dynamic>? payload, TypeAlert type) {
         print("$payload - $type");
       });

• Using param onTap:

   DropdownAlert(onTap: (Map<String, dynamic> payload?, TypeAlert type) {
                print("$payload - $type");
             },)

TypeAlert

Type	description
TypeAlert.success	Type when action success, the background of alert will green
TypeAlert.warning	Type when action warning, the background of alert will brown
TypeAlert.error	Type when action error, the background of alert will red

parameters

parameter	description	default
onTap	Callback when tab to alert, will give: Function(Map<String, dynamic>, TypeAlert)	null
successImage	Image.asset() of success alert, uri of assets image	Icon widget
warningImage	Image.asset() of warning alert, uri of assets image	Icon widget
errorImage	Image.asset() of error alert, uri of assets image	Icon widget
closeImage	Image.asset() of close image, when showCloseButton is true	Icon widget
errorBackground	Color of background when error	Colors.red
successBackground		Colors.green
warningBackground		0xFFCE863D
titleStyle	TextStyle of title
contentStyle	TextStyle of content
maxLinesTitle		null
maxLinesContent		null
duration	duration of animation	300
delayDismiss	delay time when alert auto dismiss, set to 0 if you want to freeze alert	3000
position	show the position of alert, include: AlertPosition.TOP, AlertPosition.BOTTOM	AlertPosition.TOP
showCloseButton	When close button is present, only can click on button close to hide the alert	false
avoidBottomInset	Add optional variable for inset overlap	false

The ideal from react-native-dropdownalert