When running an iOS app on macOS (e.g. through Tes...

# compose-ios

[Mark]

When running an iOS app on macOS (e.g. through TestFlight), pasting text into a TextField results in the text being pasted twice. Is this a known issue?

[zsmb]

Just one more data point: doesn't seem like it always happens, doesn't happen with the KotlinConf app for example

Screen Recording 2026-03-25 at 8.20.09.mov

[Andrei Salavei]

Hi! If you have a reproducer, please file an issue in our YouTrack.

[Mark]

It might take me a while to reproduce it. Meanwhile, from these responses, I guess no one else is experiencing this issue?

[Mark]

Setup:
• KMP app
• Compose Multiplatform
• using BasicTextField + TextFieldState
• no platform-specific text handling
Problem:
• Cmd+V paste duplicates text (e.g. hello -> hellohello)
• only happens on macOS running the iOS app via TestFlight
• does NOT happen on actual iOS devices or Android
Additional clues:
• macOS Edit menu items (Copy/Paste/etc) stay disabled
• right-click context menu does not show Paste
• suggests Compose text field is not being recognized as a native text responder on macOS
Apple logs show Compose internals like:
IntermediateTextInputUIView
plus lots of RemoteTextInput / input session churn around paste.
This makes me suspect a Compose iOS/macOS text-input bridge issue rather than app logic — possibly Cmd+V being processed twice through UIKit/AppKit bridging.

[Mark]

@zsmb is that KotlinConf app an ios app or macos app?

[zsmb]

KotlinConf app is only an iOS app, if it's configured correctly, which I hope it is 😄

[zsmb]

Managed to reproduce the double paste now, will create an issue and add the reproducer

[zsmb]

https://youtrack.jetbrains.com/issue/CMP-10264/iOS-app-running-on-macOS-pastes-text-twice-when-using-TextFieldState

[Andrei Salavei]

https://github.com/JetBrains/compose-multiplatform-core/pull/3067 😎

[zsmb]

I wish all issues I create were fixed at this pace! 😄

[Andrei Salavei]

Please no 😄