ios5 - UIScrollView. How Can I Tell Zoom Out From Zoom In? -

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on ios have uiscrollview subclass. during zoom gesture need distinguish zoom-out zoom-in. best way this?

thanks,
doug

in uiscrollviewdelegate's scrollviewwillbeginzooming:withview:, store current zoomscale of uiscrollview; compare stored value zoomscale in scrollviewdidendzooming:withview:atscale: determine if zoom in or zoom out. if value has increased, zoom in; otherwise, zoom out.


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