Visual jitter on certain types of text editing

[gingerbeardman]

Seems to be related to setting text attributes and choice of font.

[eisenbahnman]

On both iOS and iPadOS I can now consistently reproduce jitter by using any toolbar action, if the editor isn't scrolled all the way to the bottom.

[gingerbeardman]

My theory is that when i refresh the doc with new attributes some lines are slightly larger than before so things move around. I will try increasing the default line spacing!

[gingerbeardman]

Found the fix!

// Normalize line height calculation to ignore font leading differences
textView.layoutManager.usesFontLeading = false

[gingerbeardman]

This also solves the "Document moves around as we use tools"—WOOHOO

[gingerbeardman]

250824.1716

[eisenbahnman]

Unfortunately, I'm still seeing no improvement on the latest build.

See screen as for reference. It's still quite acute.

https://github.com/user-attachments/assets/8120e486-63db-4c54-931e-631e120e5107t

In case the link above doesn’t work, try this one: https://drive.google.com/file/d/1yXfWNq_3v53P4vEwZ7CBzTN9o6DVylSG/view?usp=drivesdk

[gingerbeardman]

Thanks for the report.

Would you be so kind as to craft a note of lorem ipsum, or similar, that will reproduce it? I can use that for testing. @eisenbahnman

I do not see it in my test notes.