[ios] Add opt-in inline prediction text input support by nikb7 · Pull Request #183650 · flutter/flutter

nikb7 · 2026-03-13T16:30:59Z

Expose inline prediction configuration through Flutter text fields so apps can explicitly control iOS 17 inline predictive text behavior and ensure the engine handles attributed marked text correctly.

This PR adds an enableInlinePrediction option to TextInputConfiguration, EditableText, TextField, and CupertinoTextField, and forwards that setting to the iOS text input plugin.

On the engine side, the iOS text input implementation now:

maps enableInlinePrediction to UITextInlinePredictionType on iOS 17+
defaults inline prediction to disabled unless the framework explicitly enables it
handles setAttributedMarkedText:selectedRange: by forwarding the plain string to the existing marked text flow so inline predictive text updates are processed correctly

This keeps the feature opt-in, preserves existing behavior by default, and gives apps explicit control over inline predictive text on supported iOS versions.

Fixes: #135221

Previous PR: #182728

Pre-launch Checklist

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Note: The Flutter team is currently trialing the use of Gemini Code Assist for GitHub. Comments from the gemini-code-assist bot should not be taken as authoritative feedback from the Flutter team. If you find its comments useful you can update your code accordingly, but if you are unsure or disagree with the feedback, please feel free to wait for a Flutter team member's review for guidance on which automated comments should be addressed.

Expose inline prediction configuration through Flutter text fields so apps can explicitly control iOS 17 inline predictive text behavior and ensure the engine handles attributed marked text correctly. Made-with: Cursor

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Code Review

This pull request introduces an opt-in feature for inline predictive text on iOS 17 by adding an enableInlinePrediction property to TextInputConfiguration and various text input widgets (EditableText, TextField, CupertinoTextField). The changes propagate this setting down to the iOS engine, which correctly configures the native UITextInput and handles attributed marked text. The implementation is thorough, spanning the framework and engine, and is accompanied by comprehensive tests at each layer, ensuring the new functionality is robust and the default behavior is preserved. The code is clean and follows existing conventions.

loic-sharma · 2026-03-16T21:13:44Z

For reviewers, you can find the previous PR here: #182728.

loic-sharma

Thanks for the wonderful contribution, this looks good to me!

Please also get approval from @LongCatIsLooong or @hellohuanlin before merging this.

nikb7 · 2026-03-25T18:20:28Z

@LongCatIsLooong & @hellohuanlin can you please review this PR, thank you

Co-authored-by: Loïc Sharma <[email protected]>

loic-sharma

Re-LGTM

nikb7 · 2026-03-31T17:57:28Z

@loic-sharma can you please assist with merging this pull request, i believe autosubmit and CICD label needs to be added here.
Thanks for the support

nikb7 · 2026-04-01T05:52:57Z

@hellohuanlin can you also review the PR - I believe approval from all the reviewers is required for Google Testing workflow to get triggered
@loic-sharma please correct me if I am wrong here or suggest next steps to merge this PR
Thanks

loic-sharma · 2026-04-01T17:28:16Z

@nikb7 Hm it seems something went wrong with Google tests. I restarted them manually. I'll loop back in a bit!

…ter/flutter#183650)

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Expose inline prediction configuration through Flutter text fields so apps can explicitly control iOS 17 inline predictive text behavior and ensure the engine handles attributed marked text correctly. This PR adds an `enableInlinePrediction` option to `TextInputConfiguration`, `EditableText`, `TextField`, and `CupertinoTextField`, and forwards that setting to the iOS text input plugin. On the engine side, the iOS text input implementation now: - maps `enableInlinePrediction` to `UITextInlinePredictionType` on iOS 17+ - defaults inline prediction to disabled unless the framework explicitly enables it - handles `setAttributedMarkedText:selectedRange:` by forwarding the plain string to the existing marked text flow so inline predictive text updates are processed correctly This keeps the feature opt-in, preserves existing behavior by default, and gives apps explicit control over inline predictive text on supported iOS versions. Fixes: flutter#135221 Previous PR: flutter#182728 ## Pre-launch Checklist - [x] I read the [Contributor Guide] and followed the process outlined there for submitting PRs. - [x] I read the [AI contribution guidelines] and understand my responsibilities, or I am not using AI tools. - [x] I read the [Tree Hygiene] wiki page, which explains my responsibilities. - [x] I read and followed the [Flutter Style Guide], including [Features we expect every widget to implement]. - [x] I signed the [CLA]. - [x] I listed at least one issue that this PR fixes in the description above. - [x] I updated/added relevant documentation (doc comments with `///`). - [x] I added new tests to check the change I am making, or this PR is [test-exempt]. - [x] I followed the [breaking change policy] and added [Data Driven Fixes] where supported. - [x] All existing and new tests are passing. If you need help, consider asking for advice on the #hackers-new channel on [Discord]. **Note**: The Flutter team is currently trialing the use of [Gemini Code Assist for GitHub](https://developers.google.com/gemini-code-assist/docs/review-github-code). Comments from the `gemini-code-assist` bot should not be taken as authoritative feedback from the Flutter team. If you find its comments useful you can update your code accordingly, but if you are unsure or disagree with the feedback, please feel free to wait for a Flutter team member's review for guidance on which automated comments should be addressed.  [Contributor Guide]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#overview [Tree Hygiene]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md [test-exempt]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#tests [Flutter Style Guide]: https://github.com/flutter/flutter/blob/main/docs/contributing/Style-guide-for-Flutter-repo.md [Features we expect every widget to implement]: https://github.com/flutter/flutter/blob/main/docs/contributing/Style-guide-for-Flutter-repo.md#features-we-expect-every-widget-to-implement [CLA]: https://cla.developers.google.com/ [flutter/tests]: https://github.com/flutter/tests [breaking change policy]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#handling-breaking-changes [Discord]: https://github.com/flutter/flutter/blob/main/docs/contributing/Chat.md [Data Driven Fixes]: https://github.com/flutter/flutter/blob/main/docs/contributing/Data-driven-Fixes.md [AI contribution guidelines]: https://github.com/flutter/flutter/blob/main/docs/contributing/Tree-hygiene.md#ai-contribution-guidelines --------- Co-authored-by: Loïc Sharma <[email protected]>

[ios] Add opt-in inline prediction text input support

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Expose inline prediction configuration through Flutter text fields so apps can explicitly control iOS 17 inline predictive text behavior and ensure the engine handles attributed marked text correctly. Made-with: Cursor

nikb7 requested a review from a team as a code owner March 13, 2026 16:31

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Enable inline text prediction on iOS (issue #135221) #182728

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Merge branch 'master' into enable-inline-prediction-ios-minimal

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Merge branch 'master' into enable-inline-prediction-ios-minimal

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nikb7 requested review from LongCatIsLooong and hellohuanlin March 24, 2026 02:36

nikb7 added 2 commits March 24, 2026 08:07

Merge branch 'master' into enable-inline-prediction-ios-minimal

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Merge branch 'master' into enable-inline-prediction-ios-minimal

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Update packages/flutter/lib/src/services/text_input.dart

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