How would I be able to limit the scale of the UIPinchGestureRecognizer to a min and max level? The scale property below seems to be relative to the last known scale (the delta from last state) and I can't figure out how to set a limit to the size/heigh of the object being zoomed.How would I be able to limit the scale of the U
阅读背景：
在UIPinchGestureRecognizer - iPhone iOS中缩放缩放比例最大/最小。
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