How do I create a text input that does not show virtual keyboard on focus

[Nubuki-all]

On Android we could do something like
editText.showSoftInputOnFocus = false
To prevent virtual keyboard from showing on focus
There is already an in-app keyboard

[lizuju]

There is not a public Slint equivalent of showSoftInputOnFocus = false at the moment.

TextInput enables the platform input method whenever it receives focus and read-only is false. On Android, that request directly shows the soft input. The public TextInput properties do not expose an opt-out.

read-only: true is the only built-in way to avoid that request, but it also disables normal keyboard and mouse editing. It is only a workable fallback if the in-app keyboard updates text itself and handles caret/selection behavior, rather than dispatching ordinary key events.

The official virtual keyboard example shows how to display an in-app keyboard and route key events to the focused TextInput, but it does not suppress the native Android IME. The current focus path still sends InputMethodRequest::Enable (source).

So for an editable, focused TextInput that uses only your in-app keyboard, this needs a Slint API addition (for example, a soft-keyboard/IME opt-out property); it cannot currently be configured from .slint.