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iOS

Orange line resulting from added constraints

In Designing the Main Screen (https://teamtreehouse.com/library/build-an-interactive-story-app-with-swift-2/navigating-through-an-adventure/designing-the-main-screen), at 4:20, the instructor adds a bottom constraint of 48 to a Button. After the constraint is added, an orange line labeled -4 appears below the button. What does the -4 indicate?

1 Answer

It means that the current position is 4 points off from the ideal position provided by the set constraints. When you click on Update Frame, the button will shift itself 4 points to fix it.