SMScrollView is a subclass of
UIScrollView with the following additions:
- It maintains the position of the view returned by its
viewForZoomingInScrollView:in the center of its own boundaries.
- It has a double-tap gesture to zoom in and out the view returned by its
viewForZoomingInScrollView:. Specifically, when its
zoomScale == minimumZoomScale, it zooms-in the view to the tapped point and to the scale defined by by the
maximumZoomScale. Otherwise, when
zoomScale > minimumZoomScale, it zooms-out to a scale defined by the
minimumZoomScale. The double-tap gesture is available through the
doubleTapGestureRecognizerproperty to disable or adjust the gesture behavior.
- When its size is changed, for example due to a change in an interface orientation, then:
- If its
fitOnSizeChange == YES, then its content is rescaled to fit its new size, up to the scale of 1.0, such that the content is never stretched.
fitOnSizeChange == NO, then it maintains zoomed view's center point in center after the size is changed. However, if
stickToBoundsproperty was set to
YESand the scroll-view was scrolled to one of its boundaries before the size change, then it is kept at these boundaries instead of keeping the center point in center.
- If its
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