class _PaymentButtonState extends State<PaymentButton> { // loading and error state variables bool _isLoading = false; String _errorMessage = ''; Future<void> pay() async { // make payment, update state variable
To create a toast notification in the Flutter app you need to add a FlutterToast dependency to the project because in Flutter there is no specific widget or function available to display a toast message. Even the snack bar widget which is used instead of toast does not have a flexible posit...
Now it’s time for iOS. Luckily, we only need to change one file in this case. Add the following values (note thatCFBundleURLTypesitem may already exist in the list; in that case, you need to add these items to the existing array instead of declaring it again) to$(FLUTTER_PROJECT)R...
When you visit a post detail page, you will see aDeleteicon button in the AppBar. Pressing on the button will print a message in the console: Output flutter: DELETED This will represent a delete request. Due to the limitations of JSON Placeholder and this example application, the post will...
Here thecallbackDispacherneeds to be either a static function or a top-level function that can be accessible as a Flutter entry point. Summing Up: In the post, you have learned about the Android background services and the effective ways to manage them in the Flutter applications. ...
How to load data asynchronously with Bloc for paging in Flutter DataTable? In this article, we will show you how to load data asynchronously with Bloc for paging in Flutter DataTable. Steps to asynchronous data loading using Bloc: Step 1: Creating the Bloc for Data Fetching The Bloc ...
(FCM)to send push notifications to users when they receive a message while not in the app. FCM is a cross-platform messaging solution that allows developers to send messages to their users’ devices from a backend server. By integrating FCM with our Flutter chat app, we can ensure that ...
In the following sections, we will show you how to use Flutter webview to load the online document scanning demo and how to combine JavaScript and Dart code to process the scanned images.Dependent Flutter PackagesBefore getting started, you need to add the following packages to the pubspec....
How to build Flutter mobile app and perform basic CRUD functions with Aqueduct application.👈 You are here From thepreviouspost, I have shared how to setup your web server to implement RESTful api using Aqueduct with Postgresql. In this post, we are going to start building our flutter app ...
### First Steps: Your Hello World Flask API Here’s how to build your first minimal Flask REST API: ```python from flask import Flask app = Flask(__name__) @app.route('/') def hello(): return {'message': 'Hello, World!'} if __name__ == '__main__': app.run(debug=True...