How do you match foreground to background?
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What are you trying to achieve with this library exactly? Please describe.
I might get this wrong.
From what I can understand, matching foreground to background is to make 2 images move and scale together so that they look like one image.
But how did you match them?
According to the content of matchForegroundToBackground:
self.backgroundContainerView.superview
is exactly scrollview right?
But I think the frame of backgroundContainerView does not change(what changes is the contentOffset)so I don't quiet understand.
Thanks in advance!
That'll be of great help.
Hi @devshaww! All the code for matching the two is here:
TOCropViewController/Objective-C/TOCropViewController/Views/TOCropView.m
Lines 402 to 411 in 7bce8f0
Admittedly, if I was to rebuild this library today, I probably wouldn't do it like that again. It was good for performance in 2015, but it ended up being really messy to handle things like rotations with.