检查是否在UIPinchGestureRecognizer中释放了夹点

ahe*_*ang 1 iphone objective-c ipad ios

如何检查夹点是否已释放?我试过了

- (IBAction)resizeImage:(UIPinchGestureRecognizer *)sender
{
   if (sender.delaysTouchesEnded)
   //here
}
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它没有成功

UIA*_*dam 7

你需要检查sender.state == UIGestureRecognizerStateEnded并可能sender.state == UIGestureRecognizerStateCancelled