Skip to main content

Posts

Platform Channels

FLUTTER • NATIVE INTEGRATION How to Connect Flutter to Native Code Using Platform Channels A step-by-step tutorial with Dart, Kotlin, and Swift examples, plus error handling and production best practices. Reading time: 12–15 minutes Flutter allows developers to build Android and iOS applications from a shared codebase. Sometimes an application needs a platform API or native SDK that is not available through an existing Flutter package. Platform channels provide a way for Dart code to communicate with native Android and iOS code. What we will build: a Flutter button that calls native code. Android returns a message from Kotlin, while iOS returns a message from Swift. In this article Why platform channels? How they work Flutter and Dart code Android implementation iOS implementation Error handling and best practices 1. Why Use Platform Channels? Platform channels are useful when y...
Post a Comment
Read more
Recent posts

Designing and Building Dual-Screen Apps for Concept "iPhone Duo" in Flutter

FLUTTER • ADAPTIVE UI • CONCEPT DESIGN Designing and Building Dual-Screen Apps for the Concept “iPhone Duo” in Flutter Explore adaptive layouts, two-pane navigation, simulated dual-screen experiences, and the engineering decisions behind apps designed for two displays. Reading time: 10–12 minutes Concept disclaimer: “iPhone Duo” is used here as a hypothetical dual-screen device concept, not as a claim that Apple has announced or released such a product. Flutter examples in this article demonstrate adaptive and simulated two-pane layouts that can be tested on existing devices. What if an iPhone could provide two displays that work together? Imagine reading an article on one screen while keeping notes on the other, browsing a product list beside its details, or viewing a video while controlling playback on a separate panel. This kind of experience introduces an interesting app-design challenge: the interface must understand how much space is avail...
Post a Comment
Read more

Building Dual-Screen & Foldable ListView Apps in Flutter using TwoPane

Flutter Tutorial Building Dual-Screen & Foldable ListView Apps in Flutter using TwoPane Learn how to adapt your Flutter layout for dual-screen and foldable devices using Microsoft's dual_screen package and Flutter's TwoPane widget. Dual-screen and foldable mobile devices offer unique screen real estate. Instead of showing a single list view that navigates to a new page, dual-screen layouts allow developers to display a Master-Detail view side-by-side when unfolded or on dual screens, and fall back to a single page view on standard phones. What You Will Learn: Understanding Dual-Screen Hinge and Folding Display Features Implementing the TwoPane widget for responsive multi-screen layouts Handling Master-Detail state selection dynamically Material 3 visual layout standards for adaptive design 1. Step 1: Add Dependencies Add the official dual_screen ...
Post a Comment
Read more

Build an Offline-First ListView with API Caching & Modern UI

Flutter Tutorial: Build an Offline-First ListView with API Caching & Modern UI Welcome to another Flutter tutorial! Today, we are going to build an offline-first Flutter application . In real-world mobile development, users expect apps to work seamlessly even when their internet connection drops. We will build a feature that fetches data from a REST API, stores it in a local SQLite database, and displays it in a beautiful Material 3 ListView . When the app goes offline, it automatically loads the cached data from the local database. 🌟 What You Will Learn Offline-First Architecture: Strategy for syncing API data with local storage. REST API Integration: Fetching JSON data in Flutter using modern async/await . Local Database Caching: Using sqflite for fast, efficient local persistence. Material 3 UI Design: Designing an attractive, modern list with dynamic cards and pull-to-refresh functionality. ...
Post a Comment
Read more
  Implementing Search by Character in Flutter: A Complete Guide with Examples Searching is one of the most common features in mobile applications. Whether you're building a contact list, product catalog, employee directory, or chat application, users expect search results to update instantly as they type. Flutter makes it easy to implement search by character , where the list filters after every keystroke without requiring users to tap a search button. In this guide, you'll learn how to implement a fast, efficient, and scalable character-by-character search in Flutter. What is Search by Character? Search by character (also called live search or incremental search ) filters data every time the user types a new character. For example: User Types Results ---------------------------------------- A Apple, Amazon, Adobe Ap Apple App Apple Appl Apple Apple Apple Instead of waiting for the user to...
Post a Comment
Read more
  How to Write Test Cases in Flutter: A Complete Guide with Examples (2026)   Testing is one of the most important aspects of Flutter development. Writing proper test cases helps you catch bugs early, improve code quality, and ensure your application behaves as expected before it reaches users. Flutter provides a powerful testing framework out of the box, making it easy to write different types of tests for your applications. In this guide, you'll learn how to write unit tests, widget tests, and integration tests with practical examples and best practices. Why Testing Matters Imagine releasing an app update that accidentally breaks the login screen or crashes the payment flow. Without automated tests, these issues might only be discovered by your users. Benefits of testing include: Detect bugs early Improve application stability Reduce regression issues Increase confidence during refactoring Enable Continuous Integration (CI/CD) Save development and maintenance time Types of F...
Post a Comment
Read more
  How to Publish a Flutter App on the Google Play Store: A Complete Step-by-Step Guide (2026) Publishing your Flutter app on the Google Play Store is an exciting milestone. While Flutter makes it easy to build apps for multiple platforms, there are several important steps to prepare your Android app for production and successfully publish it. This guide covers everything from generating a signed app bundle to submitting your app for review on the Google Play Console. Prerequisites Before you begin, ensure you have: Flutter SDK installed Android Studio (latest stable version) A Google Play Developer account (one-time registration fee) An app icon and screenshots A privacy policy (if your app collects user data) Verify your Flutter installation: flutter doctor Resolve any Android-related issues before proceeding. Step 1: Prepare Your Flutter Project Start by cleaning and fetching the latest dependencies: flutter clean flutter pub get Run your application to ensure everything works co...
Post a Comment
Read more