如何观察NSScroller的变化？

问题描述

我有一个 c>

Do you see an error in my reasoning or know a better method of how to observe the scrolling of an NSScrollview?

推荐答案

[[aScrollView contentView] setPostsBoundsChangedNotifications:YES];
[[NSNotificationCenter defaultCenter] addObserver:self
                                         selector:@selector(boundsDidChangeNotification:)
                                             name:NSViewBoundsDidChangeNotification
                                           object:[scrollView contentView]];

如，您可以获取当前滚动这样定位：

As stated in the Scroll View Programming Guide, you can get the current scroll position this way:

NSPoint currentScrollPosition = [[theScrollView contentView] bounds].origin;

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