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我正在图像视图中显示图像,并且正在尝试覆盖标签/文本。我想在放大图像视图时更改叠加层 - 我检测放大事件的最佳方法是什么?

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You should use the UIScrollViewDelegate methods to detect zoom events. If you are not using UIScrollView already, you should really use it!

于 2012-11-01T17:05:44.300 回答