Nikhil Bansal

Contributor – Flutter

Added opt-in inline prediction text input support for iOS 17+ to the Flutter framework.

Open Source
Flutter
iOS
Dart
Text Input
Thu Apr 02 2026 00:00:00 GMT+0000 (Coordinated Universal Time)

Flutter is Google’s open-source UI toolkit for building natively compiled applications for mobile, web, and desktop from a single codebase.

My Contribution

Exposed 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.

Key changes across 11 files (framework + engine):

  • Added enableInlinePrediction option to TextInputConfiguration, EditableText, TextField, and CupertinoTextField
  • Mapped enableInlinePrediction to UITextInlinePredictionType on iOS 17+ in the engine
  • Handled setAttributedMarkedText:selectedRange: by forwarding the plain string to the existing marked text flow
  • Kept the feature opt-in, preserving existing behavior by default

This gives Flutter apps explicit control over inline predictive text on supported iOS versions.

View Pull Request on GitHub