Vince Yuan +

Scroll NSScrollView(Mac) to Top

AppKit is old and is not as convenient as UIKit. But we have to use it on Mac app development.

"Scroll a scrollview to top" sounds easy, but actually it isn't. If you assign a documentView to a NSScrollView, you will see it scrolls to the bottom. (Very stupid!) The doc did not mention how to scroll to top. I found a way to control the vertical scroller. I can set the scroller to top, but the scrollView is still at bottom!

This post ( inspired me. I got the solution (of cause, I post my answer on stackoverflow too):

    // Scroll the vertical scroller to top

    if ([_scrollView hasVerticalScroller]) {

        _scrollView.verticalScroller.floatValue = 0;


    // Scroll the contentView to top

    [_scrollView.contentView scrollToPoint:NSMakePoint(0, ((NSView*)_scrollView.documentView).frame.size.height - _scrollView.contentSize.height)];
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