The Flutter & Dart tracker

Step-by-step migration from GetX to Riverpod 3.x in a real Flutter app: GetxController to Notifier, .obs to derived providers, Get.find to ref.watch, Get.to to go_router, plus snackbars, theming, and tests. Tested on Flutter 3.27.1, Dart 3.11, flutter_riverpod 3.3.1.

Step-by-step guide to finding and fixing jank in Flutter 3.27 with DevTools: profile mode, the Performance overlay, the Frame Analysis tab, the CPU Profiler, raster vs UI thread, shader warm-up, and Impeller-specific gotchas. Tested on Flutter 3.27.1, Dart 3.11, DevTools 2.40.

The 2026 way to set an accent color in Flutter with Material 3: ColorScheme.fromSeed, the colorSchemeSeed shorthand, the seven DynamicSchemeVariant options, dark mode, dynamic_color on Android 12+, and harmonizing brand colors. Tested on Flutter 3.27.1 and Dart 3.11.

Call native Android (Kotlin) and iOS (Swift) code from a Flutter 3.x app without writing a plugin: MethodChannel, EventChannel, BasicMessageChannel, the StandardMessageCodec type table, threading rules, and the cases where a plugin still wins.

When async/await is not enough: spawn a Dart isolate to run CPU-bound work off the UI thread. Isolate.run, Flutter's compute, long-lived workers with SendPort/ReceivePort, what can cross the boundary, and the JS/web caveat. Tested on Dart 3.11 and Flutter 3.27.1.

Practical guide to running one Flutter project against multiple SDK versions in CI: a GitHub Actions matrix with subosito/flutter-action v2, FVM 3 .fvmrc as the source of truth, channel pinning, caching, and the gotchas that bite when the matrix grows past three versions.

Fluorite is an open-source 3D game engine that embeds Google Filament rendering inside Flutter widgets and lets you write game logic in Dart.

Droido 1.2.0 landed on Feb 8, 2026 as a debug-only network inspector for Flutter. The interesting part is not the UI. It is the packaging story: keep a modern inspector in debug builds while ensuring release builds remain clean, small, and unaffected.

biometric_signature 10.0.0 adds simplePrompt() and new BiometricError values. Here is how to handle the breaking change and future-proof your Flutter 3.x auth flows.

TrailBase is an open-source, single-executable backend built on Rust, SQLite, and Wasmtime. Version 0.23.7 ships UI fixes and improved error handling.

A pragmatic workflow for debugging Flutter iOS apps from Windows: offload the build to macOS in GitHub Actions, install the IPA on a real iPhone, and use flutter attach for hot reload and DevTools.

particles_flutter 2.0.2 adds particle shapes, rotation, boundary modes, and emitters. A quick tour of what changed and a tiny integration snippet for Flutter 3.x projects.

The leadingDistribution property in Flutter's TextHeightBehavior controls how extra leading is distributed above and below glyphs. Here is when it matters and how to fix text that looks vertically off.

TypeMonkey, a Flutter desktop typing app, shows why desktop projects need clean architecture from day one: sealed states, interface boundaries, and testable logic.

Dart 3.12 dev tags are landing fast. Here is how to read the version string, pin a dev SDK in CI, and triage failures so your Flutter 3.x migration is a small PR instead of a fire drill.

Flet lets you build Flutter UIs with Python logic. Here are the real trade-offs: latency from event chatter, ecosystem mismatch with Dart plugins, and split-brain debugging -- plus when it actually makes sense.

mobile_rag_engine brings on-device RAG to Flutter with a Rust core, ONNX embeddings, HNSW vector search, and SQLite storage. A practical look at the API, integration flow, and shipping constraints.

FlutterGuard CLI scans your Flutter 3.x build artifacts for leaked secrets, debug symbols, and metadata. A practical workflow for integrating it into CI and handling what it finds.

Flutter 3.38.6 bumped engine.version, and that matters for reproducible builds. Learn how to pin the SDK in CI, avoid engine drift, and diagnose 'what changed' when builds break with no code changes.

tp_router is a generator-driven Flutter router that eliminates manual route tables. Annotate your pages, run build_runner, and navigate with typed APIs instead of stringly-typed paths.

Fix Flutter `MissingPluginException` 'No implementation found for method getAll' on shared_preferences and similar plugins (package_info_plus, etc.) — ProGuard, plugin registration, minSdkVersion, hot restart fixes.

This Flutter error occurs when calling a method on a null object reference. Learn how to diagnose and fix the NoSuchMethod error using the call stack and breakpoints.

The most likely cause of this error is an update to Flutter (flutter upgrade) which led to some incompatibility with your existing code or your project's dependencies. The Theme.of(context).accentColor property has been deprecated since Flutter 1.17 and is entirely removed from the current version, thus the error you are seeing. What to use instead Or, if…

Fix the Flutter error 'Your project requires a newer version of the Kotlin Gradle plugin' by updating the ext.kotlin_version in your build.gradle file to the latest Kotlin release.