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Frameworks & web · #flutter
Sound null safety eliminates silent null dereferences in Dart. This guide walks you through preparing, running the migration tool, handling third‑party packages, a concrete code example, and trade‑offs so you can modernise your Flutter or server‑side Dart code safely.
Flutter widgets that render blank or at zero size almost always trace back to constraint flow, theme ancestry, or eagerly built lists — not the Android version. This guide walks through ordered checks with real tooling and fixes matched to each finding.
Stop relying on imperative push/pop calls for complex apps. Learn how Flutter Navigator 2.0 uses a declarative page stack to sync your UI with URLs and app state.
Learn how Navigator 2.0 and GoRouter give Flutter apps declarative, URL‑driven routing with deep‑link support, authentication guards, and predictable back‑button behavior.
Learn how to bridge Flutter and native code using MethodChannel, EventChannel, and BasicMessageChannel. Includes a full battery-level example and critical threading guidelines.
A practical task guide for migrating Dart and Flutter projects to sound null safety using the official analysis and annotation workflow.
Flutter's imperative Navigator fights you on deep links and web URLs. Here's why go_router's declarative route table, redirects, and StatefulShellRoute are the sensible default — plus the trade-offs to know first.
Dart 3 sealed classes replace null-sentinel returns and forgotten error branches with compiler-checked domain models. A worked example shows exhaustive switching over a profile-fetch result type.
Decide when to use Flutter's Navigator 1.0 imperative API versus Navigator 2.0 declarative router based on deep‑linking, web URL sync, and boilerplate tolerance.
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