Alert PopupDialog With Gradient Button In Flutter App

admin_img Posted By Bajarangi soft , Posted On 10-09-2020

alert dialog box is used to show a simple alert message on both android and iOS flutter mobile applications. The alert dialog contains a message as Title and a OK button. The basic requirement of Alert Dialog is when we want to suddenly display a response message coming from API or wants to alert the app using then we have to use Alert Dialog box. In flutter we would use inbuilt showAlert() function to display Alert Dialog box.

Alert PopupDialog With Gradient Button In Flutter App

Step 1
We cannot directly remove the time stamp from  Alert PopupDialog With Gradient Button but using the intl.dart package we can easily filter the date stamp from time stamp. So open your flutter project’s pubspec.yaml in code .

dependencies:
  flutter:
    sdk: flutter
  http: ^0.12.0
  rflutter_alert: ^1.0.3

Step 2
After done saving the pubspec.yaml file, Open your flutter project root folder in Command Prompt or Terminal and execute flutter pub get command. 
flutter pub get

Step 3
 Open your project’s main.dart file and import material.dart and   rflutter_alert: ^1.0.3. dart package.
import 'package:rflutter_alert/rflutter_alert.dart';


Complete Code For Alert PopupDialog With Gradient Button In Flutter
main.dart
import 'package:flutter/material.dart';
import 'package:rflutter_alert/rflutter_alert.dart';


void main() => runApp(RatelApp());
class RatelApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(
      debugShowCheckedModeBanner: false,
      home: Scaffold(
        appBar: AppBar(
          centerTitle: true,
          backgroundColor: Colors.orangeAccent,
          title: Text('Alert With Buttons'),
        ),
        body: PopupDialog(),
      ),
    );
  }
}
class PopupDialog extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return Container(
      child: Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: <Widget>[
            RaisedButton(
              child: Text('Alert with Buttons'),
              onPressed: () => _onAlertButtonsPressed(context),
              color: Colors.orangeAccent,
              textColor: Colors.white,
            ),
          ],
        ),
      ),
    );
  }

// Alert with single button.
  _onAlertButtonsPressed(context) {
    Alert(
      context: context,
      type: AlertType.warning,
      title: "RFLUTTER ALERT",
      desc: "Flutter is more awesome with RFlutter Alert.",
      buttons: [
        DialogButton(
          child: Text(
            "Button",
            style: TextStyle(color: Colors.white, fontSize: 20),
          ),
          onPressed: () => Navigator.pop(context),
          color: Color.fromRGBO(0, 179, 134, 1.0),
        ),
        DialogButton(
          child: Text(
            "Gradient",
            style: TextStyle(color: Colors.white, fontSize: 20),
          ),
          onPressed: () => Navigator.pop(context),
          gradient: LinearGradient(colors: [
            Color.fromRGBO(116, 116, 191, 1.0),
            Color.fromRGBO(52, 138, 199, 1.0)
          ]),
        )
      ],
    ).show();
  }
}

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