How do you make an interactable phone?

[krisisNotcover_]

How do you make an interactable phone? Where you're able to scroll and stuff, just like Nighten's! I'm quite new to coding and I've watched a tutorial on how to add it but whenever the Main Character would text, it would always appear like this. I read through the comments and it seems some other people have the same problem.
Thank you.

image.png

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[m_from_space]

How do you make an interactable phone? Where you're able to scroll and stuff, just like Nighten's! I'm quite new to coding and I've watched a tutorial on how to add it but whenever the Main Character would text, it would always appear like this. I read through the comments and it seems some other people have the same problem.
Thank you.

image.png

Your question is quite big for just a Renpy help forum I would say. If you really want to figure out what Nighten's phone code is doing wrong or maybe you are doing wrong, then you might want to figure out some things first and post relevant code here.

Other than that you maybe should play around with Renpy without the phone version for a while and therefore get an idea on how things work exactly. Or ask people on places, that actually use that specific code base.