Component's ThemeData don't inherit font family

[AlexDochioiu]

Steps to Reproduce

1. Create theme for MaterialApp in main
2. For theme set fontFamily to Cursive (or whatever else)
3. For theme set appBarTheme to const AppBarTheme(titleTextStyle: TextStyle(fontSize: 17))

Expected results: The entire app (including AppBar should use Cursive font)

Actual results: Appbar won't inherit the font family

* I use `material3: enabled` * This seems to apply for button themes too, not just app bar. Probably no component will inherit the font family if the component has the text style updated when setting up the overall app's theme.

Logs

``` [✓] Flutter (Channel stable, 3.3.8, on macOS 13.0.1 22A400 darwin-x64, locale en-GB) • Flutter version 3.3.8 on channel stable at /usr/local/Caskroom/flutter/3.0.1/flutter • Upstream repository https://github.com/flutter/flutter.git • Framework revision 52b3dc25f6 (10 days ago), 2022-11-09 12:09:26 +0800 • Engine revision 857bd6b74c • Dart version 2.18.4 • DevTools version 2.15.0 [✓] Android toolchain - develop for Android devices (Android SDK version 33.0.0) • Android SDK at /Users/alexandrudochioiu/Library/Android/sdk • Platform android-33, build-tools 33.0.0 • ANDROID_HOME = /Users/alexandrudochioiu/Library/Android/sdk • Java binary at: /Applications/Android Studio.app/Contents/jre/Contents/Home/bin/java • Java version OpenJDK Runtime Environment (build 11.0.13+0-b1751.21-8125866) • All Android licenses accepted. [✓] Xcode - develop for iOS and macOS (Xcode 14.1) • Xcode at /Applications/Xcode.app/Contents/Developer • Build 14B47b • CocoaPods version 1.11.3 [✓] Chrome - develop for the web • Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome [✓] Android Studio (version 2021.3) • Android Studio at /Applications/Android Studio.app/Contents • Flutter plugin can be installed from: 🔨 https://plugins.jetbrains.com/plugin/9212-flutter • Dart plugin can be installed from: 🔨 https://plugins.jetbrains.com/plugin/6351-dart • Java version OpenJDK Runtime Environment (build 11.0.13+0-b1751.21-8125866) [✓] IntelliJ IDEA Community Edition (version 2022.1.3) • IntelliJ at /Applications/IntelliJ IDEA CE.app • Flutter plugin can be installed from: 🔨 https://plugins.jetbrains.com/plugin/9212-flutter • Dart plugin can be installed from: 🔨 https://plugins.jetbrains.com/plugin/6351-dart [✓] VS Code (version 1.73.1) • VS Code at /Applications/Visual Studio Code.app/Contents • Flutter extension version 3.52.0 [✓] Connected device (3 available) • 2201116TG (mobile) • LN7DPFJ7MNZXPFFA • android-arm64 • Android 12 (API 31) • macOS (desktop) • macos • darwin-x64 • macOS 13.0.1 22A400 darwin-x64 • Chrome (web) • chrome • web-javascript • Google Chrome 103.0.5060.53 [✓] HTTP Host Availability • All required HTTP hosts are available • No issues found! ```

[huycozy]

Thanks for filing the issue. This issue is reproducible on the latest stable and master channels.

Demo


Sample code

```yaml fonts: - family: Cursive fonts: - asset: assets/fonts/AnandaBlackPersonalUseRegular.ttf ``` ```dart import 'package:flutter/material.dart'; void main() { runApp(const MyApp()); } class MyApp extends StatelessWidget { const MyApp({Key? key}) : super(key: key); @override Widget build(BuildContext context) { return MaterialApp( title: 'Flutter Demo', theme: ThemeData( useMaterial3: true, primarySwatch: Colors.blue, visualDensity: VisualDensity.adaptivePlatformDensity, fontFamily: 'Cursive', appBarTheme: const AppBarTheme( titleTextStyle: TextStyle(fontSize: 17), ), ), home: Scaffold( appBar: AppBar( title: const Text('Demo'), ), body: const Center( child: Text('Hello world!'), ), ), ); } } ```

flutter doctor -v (stable and master)

```bash [✓] Flutter (Channel stable, 3.3.8, on macOS 13.0 22A380 darwin-x64, locale en-VN) • Flutter version 3.3.8 on channel stable at /Users/huynq/Documents/GitHub/flutter • Upstream repository https://github.com/flutter/flutter.git • Framework revision 52b3dc25f6 (23 hours ago), 2022-11-09 12:09:26 +0800 • Engine revision 857bd6b74c • Dart version 2.18.4 • DevTools version 2.15.0 [✓] Android toolchain - develop for Android devices (Android SDK version 31.0.0) • Android SDK at /Users/huynq/Library/Android/sdk • Platform android-33, build-tools 31.0.0 • ANDROID_HOME = /Users/huynq/Library/Android/sdk • Java binary at: /Applications/Android Studio.app/Contents/jre/Contents/Home/bin/java • Java version OpenJDK Runtime Environment (build 11.0.13+0-b1751.21-8125866) • All Android licenses accepted. [✓] Xcode - develop for iOS and macOS (Xcode 14.0.1) • Xcode at /Applications/Xcode.app/Contents/Developer • Build 14A400 • CocoaPods version 1.11.3 [✓] Chrome - develop for the web • Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome [✓] Android Studio (version 2021.3) • Android Studio at /Applications/Android Studio.app/Contents • Flutter plugin can be installed from: 🔨 https://plugins.jetbrains.com/plugin/9212-flutter • Dart plugin can be installed from: 🔨 https://plugins.jetbrains.com/plugin/6351-dart • Java version OpenJDK Runtime Environment (build 11.0.13+0-b1751.21-8125866) [✓] IntelliJ IDEA Community Edition (version 2022.2.2) • IntelliJ at /Applications/IntelliJ IDEA CE.app • Flutter plugin version 70.0.5 • Dart plugin version 222.4167.21 [✓] IntelliJ IDEA Community Edition (version 2022.1.1) • IntelliJ at /Users/huynq/Library/Application Support/JetBrains/Toolbox/apps/IDEA-C/ch-0/221.5591.52/IntelliJ IDEA CE.app • Flutter plugin can be installed from: 🔨 https://plugins.jetbrains.com/plugin/9212-flutter • Dart plugin can be installed from: 🔨 https://plugins.jetbrains.com/plugin/6351-dart [✓] VS Code (version 1.73.0) • VS Code at /Applications/Visual Studio Code.app/Contents • Flutter extension version 3.52.0 [✓] Connected device (3 available) • iPhone 14 Pro Max (mobile) • 332079AF-E895-4685-910E-7B1E18B0C6B8 • ios • com.apple.CoreSimulator.SimRuntime.iOS-16-0 (simulator) • macOS (desktop) • macos • darwin-x64 • macOS 13.0 22A380 darwin-x64 • Chrome (web) • chrome • web-javascript • Google Chrome 107.0.5304.110 [✓] HTTP Host Availability • All required HTTP hosts are available • No issues found! ``` ```bash [!] Flutter (Channel master, 3.6.0-6.0.pre.29, on macOS 13.0 22A380 darwin-x64, locale en-VN) • Flutter version 3.6.0-6.0.pre.29 on channel master at /Users/huynq/Documents/GitHub/flutter_master ! Warning: `flutter` on your path resolves to /Users/huynq/Documents/GitHub/flutter/bin/flutter, which is not inside your current Flutter SDK checkout at /Users/huynq/Documents/GitHub/flutter_master. Consider adding /Users/huynq/Documents/GitHub/flutter_master/bin to the front of your path. ! Warning: `dart` on your path resolves to /Users/huynq/Documents/GitHub/flutter/bin/dart, which is not inside your current Flutter SDK checkout at /Users/huynq/Documents/GitHub/flutter_master. Consider adding /Users/huynq/Documents/GitHub/flutter_master/bin to the front of your path. • Upstream repository https://github.com/flutter/flutter.git • Framework revision ee9bc784b5 (2 hours ago), 2022-11-20 19:32:24 -0500 • Engine revision 271461837e • Dart version 2.19.0 (build 2.19.0-406.0.dev) • DevTools version 2.19.0 • If those were intentional, you can disregard the above warnings; however it is recommended to use "git" directly to perform update checks and upgrades. [✓] Android toolchain - develop for Android devices (Android SDK version 31.0.0) • Android SDK at /Users/huynq/Library/Android/sdk • Platform android-33, build-tools 31.0.0 • ANDROID_HOME = /Users/huynq/Library/Android/sdk • Java binary at: /Applications/Android Studio.app/Contents/jre/Contents/Home/bin/java • Java version OpenJDK Runtime Environment (build 11.0.13+0-b1751.21-8125866) • All Android licenses accepted. [✓] Xcode - develop for iOS and macOS (Xcode 14.0.1) • Xcode at /Applications/Xcode.app/Contents/Developer • Build 14A400 • CocoaPods version 1.11.3 [✓] Chrome - develop for the web • Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome [✓] Android Studio (version 2021.3) • Android Studio at /Applications/Android Studio.app/Contents • Flutter plugin can be installed from: 🔨 https://plugins.jetbrains.com/plugin/9212-flutter • Dart plugin can be installed from: 🔨 https://plugins.jetbrains.com/plugin/6351-dart • Java version OpenJDK Runtime Environment (build 11.0.13+0-b1751.21-8125866) [✓] IntelliJ IDEA Community Edition (version 2022.2.2) • IntelliJ at /Applications/IntelliJ IDEA CE.app • Flutter plugin version 70.0.5 • Dart plugin version 222.4167.21 [✓] IntelliJ IDEA Community Edition (version 2022.1.1) • IntelliJ at /Users/huynq/Library/Application Support/JetBrains/Toolbox/apps/IDEA-C/ch-0/221.5591.52/IntelliJ IDEA CE.app • Flutter plugin can be installed from: 🔨 https://plugins.jetbrains.com/plugin/9212-flutter • Dart plugin can be installed from: 🔨 https://plugins.jetbrains.com/plugin/6351-dart [✓] VS Code (version 1.73.1) • VS Code at /Applications/Visual Studio Code.app/Contents • Flutter extension version 3.52.0 [✓] Connected device (3 available) • SM T225 (mobile) • R9JT3004VRJ • android-arm64 • Android 12 (API 31) • macOS (desktop) • macos • darwin-x64 • macOS 13.0 22A380 darwin-x64 • Chrome (web) • chrome • web-javascript • Google Chrome 107.0.5304.110 [✓] HTTP Host Availability • All required HTTP hosts are available ! Doctor found issues in 1 category. ```

[adamzhu-xs]

Similar issue in https://github.com/flutter/flutter/issues/127787. It's impacting appBar and Buttons also if I want override fontsize but want inherit default fontfamily in ThemeData.

[ManuelRauber]

It's impacting everything in Flutter 3.10.6. The fontFamily set in the ThemeData is not showing up anywhere.

[hoangnam714]

i found this problem on both floating button and cupertino button,...

Flutter doctor -v stable

[✓] Flutter (Channel stable, 3.10.6, on macOS 13.4 22F66 darwin-x64, locale en-GB) • Flutter version 3.10.6 on channel stable at /Users/vinova/developer/flutter • Upstream repository https://github.com/flutter/flutter.git • Framework revision f468f3366c (6 weeks ago), 2023-07-12 15:19:05 -0700 • Engine revision cdbeda788a • Dart version 3.0.6 • DevTools version 2.23.1 [✓] Android toolchain - develop for Android devices (Android SDK version 34.0.0) • Android SDK at /Users/vinova/Library/Android/sdk • Platform android-34, build-tools 34.0.0 • Java binary at: /Applications/Android Studio.app/Contents/jbr/Contents/Home/bin/java • Java version OpenJDK Runtime Environment (build 17.0.6+0-17.0.6b802.4-9586694) • All Android licenses accepted. [✓] Xcode - develop for iOS and macOS (Xcode 14.3.1) • Xcode at /Applications/Xcode.app/Contents/Developer • Build 14E300c • CocoaPods version 1.12.1 [✓] Chrome - develop for the web • Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome [✓] Android Studio (version 2022.2) • Android Studio at /Applications/Android Studio.app/Contents • Flutter plugin can be installed from: 🔨 https://plugins.jetbrains.com/plugin/9212-flutter • Dart plugin can be installed from: 🔨 https://plugins.jetbrains.com/plugin/6351-dart • Java version OpenJDK Runtime Environment (build 17.0.6+0-17.0.6b802.4-9586694) [✓] VS Code (version 1.80.1) • VS Code at /Users/vinova/Downloads/Visual Studio Code.app/Contents • Flutter extension version 3.70.0 [✓] Connected device (3 available) • iPhone 14 Pro Max (mobile) • A2CAC303-1027-4E73-87B7-5C46E09CCE9E • ios • com.apple.CoreSimulator.SimRuntime.iOS-16-4 (simulator) • macOS (desktop) • macos • darwin-x64 • macOS 13.4 22F66 darwin-x64 • Chrome (web) • chrome • web-javascript • Google Chrome 114.0.5735.106 [✓] Network resources • All expected network resources are available.