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Tag: flutter

33 posts · Page 2 of 4

2026-05-06 flutter dart devtools

How to profile jank in a Flutter app with DevTools

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.

2026-05-06 flutter dart material-3

How to set the accent color in a Flutter app with Material 3 ColorScheme

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.

2026-05-05 flutter dart android

How to add platform-specific code in Flutter without plugins

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.

2026-05-05 dart flutter isolates

How to write a Dart isolate for CPU-bound work

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.

2026-05-04 flutter dart ci

How to target multiple Flutter versions from one CI pipeline

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.

2026-04-13 flutter dart game-development

Fluorite: Toyota Built a Console-Grade Game Engine on Flutter and Dart

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

2026-02-08 flutter dart debugging

Flutter: Droido 1.2.0 is a debug-only network inspector with zero release impact

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.

2026-02-07 dart flutter

biometric_signature 10.0.0: `simplePrompt()` is the feature, new `BiometricError` values are the real breaking change (Flutter 3.x)

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.

2026-02-07 dotnet flutter sqlite

TrailBase v0.23.7: A Single-Binary Firebase Alternative for .NET 10 and Flutter

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.

2026-01-23 flutter

Debugging Flutter iOS from Windows: a real device workflow (Flutter 3.x)

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.