Pre-launch Checklist

• [x] I read the Effective Dart: Style recently, and have followed its advice.
• [x] I signed the CLA.
• [x] I updated/added relevant documentation (doc comments with ///).
• [x] All existing and new tests are passing.

If you need help, consider asking for advice on the #hackers-devrel channel on Discord.

Pre-launch Checklist

• [x] I read the Effective Dart: Style recently, and have followed its advice.
• [x] I signed the CLA.
• [x] I updated/added relevant documentation (doc comments with ///).
• [x] All existing and new tests are passing.

If you need help, consider asking for advice on the #hackers-devrel channel on Discord.

This is a follow-up for the update to the "Getting started" codelab in this PR.

I am making sure that helper methods aren't used but instead actual widgets are.

Pre-launch Checklist

• [x] I read the [Flutter Style Guide] recently, and have followed its advice.
• [x] I signed the [CLA].
• [x] I updated/added relevant documentation (doc comments with ///).
• [x] All existing and new tests are passing.

@domesticmouse @RedBrogdon

This is the matching PR to the changes in the document "Write a Flutter desktop application Codelab (github package version)"

Some notes:

• I moved the codelab project from github-graphql-client to github-client.
• All steps are created from scratch using the latest flutter beta, to ensure being as recent as possible.
• Screenshots in the document has been updated to match the app. There should not be any reference to graphql anymore.
• Although the GitHub Dart package provides its own OAuth2 auth logic, I kept the original one and used the resulting access token instead to configure the GitHub Dart package.

Pre-launch Checklist

• [x] I read the [Flutter Style Guide] recently, and have followed its advice.
• [x] I signed the [CLA].
• [x] I updated/added relevant documentation (doc comments with ///).
• [x] All existing and new tests are passing.

A second attempt at populating the code files for the FFI codelab.

PTAL @maks

Note for reviewers: The ffi_codelab/codelab_rebuild.yaml file is worth reviewing as it is the script that is used to generate the various steps of the codelab.

Some additional functionality was required to be added to the codelab_rebuild tool for this script. This is the way.

Pre-launch Checklist

• [x] I read the Effective Dart: Style recently, and have followed its advice.
• [x] I signed the CLA.
• [x] I updated/added relevant documentation (doc comments with ///).
• [x] All existing and new tests are passing.

If you need help, consider asking for advice on the #hackers-devrel channel on Discord.

In this PR, I am upgrading the firebase-emulator-suite code to use go_router, as part of the work on migrating all relevant codelabs to go_router.

This codelab follows https://firebase.google.com/codelabs/get-started-firebase-emulators-and-flutter#0 ping @ericwindmill as they are the owner of the codelab.

I had a bit of problem running the codelab (independently of the change to go_router), which I explain here:

• The AndroidManifest.xml needed android:usesCleartextTraffic="true" to be able to talk to the Firebase emulators.
• The minSdkVersion had to be increased to 19 (from the default of 16)
• The shipped Firebase packages were not compatible anymore and had to be upgraded to the latest versions.
• The Android project needed the MultiDex setup to run.
• Before running the project for the first time, I had to fix the problem detailed here: https://stackoverflow.com/questions/64962297/why-do-i-keep-receiving-an-error-when-initializing-my-firebase-project-while-set I think the codelab doesn't explain this step (or I skipped it, sorry!)

I committed some changes to fix these issues, others will need to be fixed in the codelab document.

Explaining the list of changes:

• The codelab code uses now go_router, replacing the named routes.
• The "logout" state is handled by having the user object as null, this is implemented with GoRouter redirect parameter.
• The paths have been adjusted, / is now /login, and /home is now /.
• The app will try to open /, will see that the user is null, and will redirect the user to /login.
• After the user logs in using Firebase Auth, the app uses context.go('/') to go back to the home.

FYI @RedBrogdon

Pre-launch Checklist

• [x] I read the Effective Dart: Style recently, and have followed its advice.
• [x] I signed the CLA.
• [ ] I updated/added relevant documentation (doc comments with ///). <-- Codelab needs update
• [x] All existing and new tests are passing.

If you need help, consider asking for advice on the #hackers-devrel channel on Discord.

Hello! :wave:

I am working with @RedBrogdon and @sfshaza2 on migrating the codelab: https://github.com/flutter/website/blob/master/src/docs/get-started/codelab.md to null safety, so I wanted to update the codelab code first.

What I did is to follow the instructions to migrate codelabs by making a copy with _migrated, so I copied the codelab startup_namer to startup_namer_migrated. If you want me to replace the original one, let me know.

The codelab code is mostly unchanged, all changes are on the pubspecs and the test files. You can go commit by commit to review the changes.

This PR adds semantic labels to icon buttons throughout the Startup Namer app.

In its previous state, these buttons were not labelled for users of screen readers such as VoiceOver, making their purpose unclear.

The corresponding codelab (first-flutter-app-pt2) should be updated to describe the purpose of these semantic labels, although I'm unable to do this as I believe the written text of codelabs is not on GitHub.

This PR also includes the start of some documentation for the codelab_rebuild tooling.

PTAL @miquelbeltran for sanity checking. Thanks!

Pre-launch Checklist

• [x] I read the Effective Dart: Style recently, and have followed its advice.
• [x] I signed the CLA.
• [x] I updated/added relevant documentation (doc comments with ///).
• [x] All existing and new tests are passing.

If you need help, consider asking for advice on the #hackers-devrel channel on Discord.

Boring to Beautiful app crashes at launch because GoRouter requires passing routeInformationProvider to MaterialApp.router when using routeInformationParser.

This patch adds a single line to the app.dart file in each step, passing appRouter.routeInformationProvider to MaterialApp.router.

Pre-launch Checklist

• [x] I read the [Effective Dart: Style] recently, and have followed its advice.
• [x] I signed the [CLA].
• [x] I updated/added relevant documentation (doc comments with ///).
• [x] All existing and new tests are passing.

This PR add the new codelab code for TensorFlow Serving + Flutter. It demos how to call the TensorFlow Serving backend from a Flutter app in the form of a simple spam detection (text classification) use case.

It is broken down into:

• codelab1 contains the first codelab code to train a spam detection model
• codelab2 contains the second codelab code to connect Flutter frontend to TensorFlow Serving backend
• codelab3 contains the third codelab code to enhance the spam detection model to detect specific spam phrases

This PR goes with cl/491449293

Pre-launch Checklist

• [x] I read the Effective Dart: Style recently, and have followed its advice.
• [x] I signed the CLA.
• [x] I updated/added relevant documentation (doc comments with ///).
• [x] All existing and new tests are passing.

If you need help, consider asking for advice on the #hackers-devrel channel on Discord.

Replace this paragraph with a description of what this PR is changing or adding, and why. Consider including before/after screenshots.

List which issues are fixed by this PR. For larger changes, raising an issue first helps reduce redundant work.

Pre-launch Checklist

• [ ] I read the Effective Dart: Style recently, and have followed its advice.
• [ ] I signed the CLA.
• [ ] I updated/added relevant documentation (doc comments with ///).
• [ ] All existing and new tests are passing.

If you need help, consider asking for advice on the #hackers-devrel channel on Discord.

Pre-launch Checklist

• [x] I read the Effective Dart: Style recently, and have followed its advice.
• [x] I signed the CLA.
• [x] I updated/added relevant documentation (doc comments with ///).
• [x] All existing and new tests are passing.

If you need help, consider asking for advice on the #hackers-devrel channel on Discord.

Part of the work to enable Material 3 on all codelabs and samples.

Initial work done by setting useMaterial3: true on the ThemeData creation.

Further work needs to be done, updating the codelab code and screenshots. I already have access to the Adaptive App's Flutter codelab doc, so I can update it once this PR is approved.

Pre-launch Checklist

• [x] I read the Effective Dart: Style recently, and have followed its advice.
• [x] I signed the CLA.
• [ ] I updated/added relevant documentation (doc comments with ///). <-- pending
• [x] All existing and new tests are passing.

If you need help, consider asking for advice on the #hackers-devrel channel on Discord.

Replace this paragraph with a description of what this PR is changing or adding, and why. Consider including before/after screenshots.

List which issues are fixed by this PR. For larger changes, raising an issue first helps reduce redundant work.

Pre-launch Checklist

• [ ] I read the Effective Dart: Style recently, and have followed its advice.
• [ ] I signed the CLA.
• [ ] I updated/added relevant documentation (doc comments with ///).
• [ ] All existing and new tests are passing.

If you need help, consider asking for advice on the #hackers-devrel channel on Discord.

Make the codelab rebuild script more closely aligned with the codelab text.

Pre-launch Checklist

• [x] I read the Effective Dart: Style recently, and have followed its advice.
• [x] I signed the CLA.
• [x] I updated/added relevant documentation (doc comments with ///).
• [x] All existing and new tests are passing.

If you need help, consider asking for advice on the #hackers-devrel channel on Discord.