Add material_ui support to hive_ce_flutter

[Rexios80]

Summary

Closes #332

• Adds MaterialUiTimeOfDayAdapter for the TimeOfDay class from package:material_ui. It shares the binary format and default type id (201) with TimeOfDayAdapter, so existing data can be read as either class. TimeOfDayAdapter still targets package:flutter/material.dart, so this is not a breaking change.
• Adds a useMaterialUi flag to Hive.initFlutter and IsolatedHive.initFlutter to register MaterialUiTimeOfDayAdapter instead of TimeOfDayAdapter (default false).
• Moves the shared initFlutter logic into an internal initFlutterCommon, which also gives IsolatedHive.initFlutter the absolute path handling from Rename subDir to dir in initFlutter, treat as relative or absolute #293.
• Adds a material_ui: ^1.0.0 dependency and raises the minimum Flutter version to 3.44.0, which material_ui 1.0.0 requires. Bumps the version to 2.4.0.

Test plan

• dart format . --set-exit-if-changed
• dart analyze --fatal-infos
• flutter test, including new tests that data written by either TimeOfDay adapter reads back correctly with the other, and tests for relative and absolute initFlutter paths
• flutter build web for the example app
• Analyzer and tests with material_ui 1.0.0 and hive_ce 2.16.0 (the minimum constraints)
• CI on the Flutter beta channel

[Copilot]

Copilot review overview

🟢 Approval recommended

Only a minor test-coverage nit remains; no blocking issues were identified.

Review effort: Lite
Findings: 1

Open (1)

• Add initFlutter coverage for useMaterialUi across both entry points · New

What changed in this PR

Adds material_ui support to hive_ce_flutter while preserving existing TimeOfDay compatibility and improving initialization path handling.

Changes:

• Adds MaterialUiTimeOfDayAdapter and compatibility tests.
• Adds useMaterialUi to both initialization APIs.
• Refactors shared initialization and updates dependencies, Flutter constraints, and changelog.

File	Summary
hive_flutter/​test/​type_registry_extensions_test.dart	Tests initialization path handling.
hive_flutter/​test/​adapters/​time_adapter_test.dart	Tests adapter compatibility.
hive_flutter/​pubspec.yaml	Updates dependencies and Flutter constraints.
hive_flutter/​lib/​src/​type_registry_extensions.dart	Centralizes initialization and adapter registration.
hive_flutter/​lib/​src/​isolated_hive_extensions.dart	Updates isolated Hive initialization.
hive_flutter/​lib/​src/​hive_extensions.dart	Exposes the new initialization option.
hive_flutter/​lib/​src/​adapters/​time_adapter.dart	Adds the Material UI adapter.
hive_flutter/​CHANGELOG.md	Documents the release changes.

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 93.65%. Comparing base (b108e56) to head (6b39eb4).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #333   +/-   ##
=======================================
  Coverage   93.65%   93.65%           
=======================================
  Files          66       66           
  Lines        2663     2663           
=======================================
  Hits         2494     2494           
  Misses        169      169           

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[cedvdb]

@Rexios80 Pardon my ignorance, but why are those 2 classes TimeOfDayAdapter and ColorAdapter in this database package ? To an outsider, this seems out of scope but i gather it's for convenience / historical reasons ?

[Rexios80]

They were added well before Hive CE was a thing. I would say they aren't out of scope. These are commonly used Flutter types (especially Color) that developers would want adapters for.