Notability and other note taking apps have this 'zoom box' feature where you can draw in the magnified box at the bottom. Users can also drag the box at the top to change what they want magnified at the bottom. I have tried literally everything I can think of to add this feature in my app. I have added the same document in two views but then I run into many memory issues, I've duplicated the file but again memory issues. Does anyone know a simple way to do this? Is there anyway I can just have a view that is a magnification of another view?
from Xcode iOS Notability "zoom box"
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