"No methods were found to override" for indirect import not exposing the class

[rafalbednarczuk]

Steps to Reproduce

Creating a class RenderObjectExample that extends RenderBox while importing package:flutter/widgets.dart throws No methods were found to override if I use Generate->override methods tool.

When I change the import to package:flutter/rendering.dart then it works correctly.

In both cases implementing an override doesn't throw any error in dart analysis or while compiling, the problem is just how AndroidStudio behaves if I want to use Generate->override methods tool.

I think that the problem is related to that package:flutter/widgets.dart wants to expose only TextSelectionHandlyType from rendering.dart:

export 'rendering.dart' show TextSelectionHandleType;

Version info

[✓] Flutter (Channel stable, 3.22.1, on macOS 14.3.1 23D60 darwin-arm64, locale en-PL)
    • Flutter version 3.22.1 on channel stable at /Users/rafalbednarczuk/flutter
    • Upstream repository https://github.com/flutter/flutter.git
    • Framework revision a14f74ff3a (3 days ago), 2024-05-22 11:08:21 -0500
    • Engine revision 55eae6864b
    • Dart version 3.4.1
    • DevTools version 2.34.3

[✓] Android toolchain - develop for Android devices (Android SDK version 34.0.0)
    • Android SDK at /Users/rafalbednarczuk/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 17.0.9+0-17.0.9b1087.7-11185874)
    • All Android licenses accepted.

[✓] Xcode - develop for iOS and macOS (Xcode 15.3)
    • Xcode at /Applications/Xcode.app/Contents/Developer
    • Build 15E204a
    • CocoaPods version 1.15.0

[✓] Chrome - develop for the web
    • Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome

[✓] Android Studio (version 2023.2)
    • 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 17.0.9+0-17.0.9b1087.7-11185874)

[✓] IntelliJ IDEA Community Edition (version 2023.2.5)
    • 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

[✓] IntelliJ IDEA Community Edition (version 2023.1.3)
    • IntelliJ at /Users/rafalbednarczuk/Library/Application Support/JetBrains/Toolbox/apps/IDEA-C/ch-0/231.9161.38/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

[✓] Connected device (4 available)
    • iPhone 15 (mobile)              • 7222F41F-D0F7-407D-9E46-578F5B2A7E8D • ios            •
      com.apple.CoreSimulator.SimRuntime.iOS-17-4 (simulator)
    • macOS (desktop)                 • macos                                • darwin-arm64   • macOS 14.3.1 23D60
      darwin-arm64
    • Mac Designed for iPad (desktop) • mac-designed-for-ipad                • darwin         • macOS 14.3.1 23D60
      darwin-arm64
    • Chrome (web)                    • chrome                               • web-javascript • Google Chrome 125.0.6422.78

[✓] Network resources
    • All expected network resources are available.

• No issues found!

[rafalbednarczuk]

I found more samples.

In this example below, generate -> override methods inside MessageRenderObject works:

import 'package:flutter/rendering.dart';
import 'package:flutter/widgets.dart';

class MessageRenderObject extends RenderBox {

}

When I switch the imports with each other, then generate -> override methods inside MessageRenderObject doesn't work:

import 'package:flutter/widgets.dart';
import 'package:flutter/rendering.dart';

class MessageRenderObject extends RenderBox {

}

In the example below, even when I hide importing RenderBox, generate -> override methods inside MessageRenderObject doesn't work:

import 'package:flutter/widgets.dart' hide RenderBox;
import 'package:flutter/rendering.dart';

class MessageRenderObject extends RenderBox {

}