Modernize Noteless for Flutter 3 and Dart 3#99
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Raise the Dart SDK constraint for the current Flutter toolchain and replace obsolete package dependencies with null-safe alternatives. Add a shared_preferences-backed PrefService wrapper so existing preference call sites can migrate without retaining the deprecated preferences package.
Update the note model, persistence layer, note store, YAML utilities, theme provider, and application bootstrap to Dart 3 null safety. This keeps the existing storage behavior while using current path_provider, device_info_plus, shared preference access, and YAML parsing APIs.
Remove reliance on non-null-safe editor, front matter, diff, and markdown packages by switching the editor to Flutter text editing primitives and preview rendering to markdown plus the modern webview_flutter controller API. This preserves editing, preview generation, and note navigation while allowing the project to build on current Flutter.
Migrate the main note list, settings, and about pages away from removed widgets and legacy packages. Replace the old preferences widgets with local Material controls, update package_info usage, modernize note actions, and add a minimal Flutter test so the upgraded project has a runnable test target.
Migrate the project metadata and Android Gradle setup to the current Flutter template, including Kotlin DSL build files, updated wrapper/properties, refreshed manifests/resources, and release-build compatibility flags. Update dependencies for Dart 3 and Flutter 3.44, remove material_design_icons_flutter because it extends final IconData, replace its usages with built-in Material icons, and update file_picker calls to the new static API. Rename tutorial asset files to ASCII-only paths and update sample references so Gradle can stat assets reliably during release builds.
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This PR migrates the Noteless application from a legacy Flutter version to a modern toolchain (Flutter 3.44, Dart 3.12). The primary focus was on implementing sound null safety across the codebase and stabilizing the Android build process for release APK generation.
##Key Changes
Technical Debt & Modernization
Android Build Pipeline
UI & UX
Verification Results
Status of the effort
APK builds, but the result is not useful (errors in Markdown parsing), needs finishing (for which I don’t have enough time any more).
Whole effort is completely vibe coded. I don’t know properly Dart even.