@available(iOS 2.0, *)
optional func scrollViewDidScroll(_ scrollView: UIScrollView) // any offset changes
@available(iOS 3.2, *)
optional func scrollViewDidZoom(_ scrollView: UIScrollView) // any zoom scale changes
// called on start of dragging (may require some time and or distance to move)
@available(iOS 2.0, *)
optional func scrollViewWillBeginDragging(_ scrollView: UIScrollView)
// called on finger up if the user dragged. velocity is in points/millisecond. targetContentOffset may be changed to adjust where the scroll view comes to rest
@available(iOS 5.0, *)
optional func scrollViewWillEndDragging(_ scrollView: UIScrollView, withVelocity velocity: CGPoint, targetContentOffset: UnsafeMutablePointer<CGPoint>)
// called on finger up if the user dragged. decelerate is true if it will continue moving afterwards
@available(iOS 2.0, *)
optional func scrollViewDidEndDragging(_ scrollView: UIScrollView, willDecelerate decelerate: Bool)
@available(iOS 2.0, *)
optional func scrollViewWillBeginDecelerating(_ scrollView: UIScrollView) // called on finger up as we are moving
@available(iOS 2.0, *)
optional func scrollViewDidEndDecelerating(_ scrollView: UIScrollView) // called when scroll view grinds to a halt
@available(iOS 2.0, *)
optional func scrollViewDidEndScrollingAnimation(_ scrollView: UIScrollView) // called when setContentOffset/scrollRectVisible:animated: finishes. not called if not animating
@available(iOS 2.0, *)
optional func viewForZooming(in scrollView: UIScrollView) -> UIView? // return a view that will be scaled. if delegate returns nil, nothing happens
@available(iOS 3.2, *)
optional func scrollViewWillBeginZooming(_ scrollView: UIScrollView, with view: UIView?) // called before the scroll view begins zooming its content
@available(iOS 2.0, *)
optional func scrollViewDidEndZooming(_ scrollView: UIScrollView, with view: UIView?, atScale scale: CGFloat) // scale between minimum and maximum. called after any 'bounce' animations
@available(iOS 2.0, *)
optional func scrollViewShouldScrollToTop(_ scrollView: UIScrollView) -> Bool // return a yes if you want to scroll to the top. if not defined, assumes YES
@available(iOS 2.0, *)
optional func scrollViewDidScrollToTop(_ scrollView: UIScrollView) // called when scrolling animation finished. may be called immediately if already at top
/* Also see -[UIScrollView adjustedContentInsetDidChange]
*/
@available(iOS 11.0, *)
optional func scrollViewDidChangeAdjustedContentInset(_ scrollView: UIScrollView)
-
func scrollViewDidScroll : 스크롤 할때마다 계속 호�출
@available(iOS 2.0, *)
optional func scrollViewDidScroll(_ scrollView: UIScrollView) // any offset changes
-
func scrollViewWillBeginDragging : 스크롤뷰에서 드래그하기 시작할 때 한번만 호출
// called on start of dragging (may require some time and or distance to move)
@available(iOS 2.0, *)
optional func scrollViewWillBeginDragging(_ scrollView: UIScrollView)
-
func scrollViewWillEndDragging : 손을 땠을 때 한번 호출, 뗐을 때의 속도(방향 포함)를 알 수 있다.
// called on finger up if the user dragged. velocity is in points/millisecond. targetContentOffset may be changed to adjust where the scroll view comes to rest
@available(iOS 5.0, *)
optional func scrollViewWillEndDragging(_ scrollView: UIScrollView, withVelocity velocity: CGPoint, targetContentOffset: UnsafeMutablePointer<CGPoint>)
-
func scrollViewDidEndDragging : 손을 땠을 때 한번 호출, 테이블 뷰의 스크롤 모션의 감속 여부를 알 수 있다.
// called on finger up if the user dragged. decelerate is true if it will continue moving afterwards
@available(iOS 2.0, *)
optional func scrollViewDidEndDragging(_ scrollView: UIScrollView, willDecelerate decelerate: Bool)
-
func scrollViewWillBeginDecelerating
@available(iOS 2.0, *)
optional func scrollViewWillBeginDecelerating(_ scrollView: UIScrollView) // called on finger up as we are moving
-
func scrollViewDidEndDecelerating
@available(iOS 2.0, *)
optional func scrollViewDidEndDecelerating(_ scrollView: UIScrollView) // called when scroll view grinds to a halt
위 두함수는 말로 설명하기가 힘들다 ; 한번 보는게 빠를 듯,,!
-
func scrollViewDidEndScrollingAnimation : setContentOffset 또는 scrollRectVisible 이 사용될 때 호출됨
@available(iOS 2.0, *)
optional func scrollViewDidEndScrollingAnimation(_ scrollView: UIScrollView) // called when setContentOffset/scrollRectVisible:animated: finishes. not called if not animating
-
func scrollViewShouldScrollToTop : 맨위를 누르면 Top으로 올라가는 액션을 허용할껀지 안할껀지 정할 수 있음
@available(iOS 2.0, *)
optional func scrollViewShouldScrollToTop(_ scrollView: UIScrollView) -> Bool // return a yes if you want to scroll to the top. if not defined, assumes YES
-
func scrollViewDidScrollToTop : 맨위로 누르면 Top으로 올라가는 이벤트가 발생할 때 호출
@available(iOS 2.0, *)
optional func scrollViewDidScrollToTop(_ scrollView: UIScrollView) // called when scrolling animation finished. may be called immediately if already at top
#iOS/스터디