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scrollViewShouldScrollToTop(_:)

Asks the delegate if the scroll view should scroll to the top of the content.

Declaration

optional func scrollViewShouldScrollToTop(_ scrollView: UIScrollView) -> Bool

Parameters

  • scrollView:

    The scroll-view object requesting this information.

Return Value

true to permit scrolling to the top of the content, false to disallow it.

Discussion

If the delegate doesn’t implement this method, true is assumed. For the scroll-to-top gesture (a tap on the status bar) to be effective, the scrollsToTop property of the UIScrollView must be set to true.

See Also

Responding to scrolling and dragging