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所以我已经加载了一个 UIImageView 并在其中有一个 PinchGestureRecognizer,现在的问题是我如何检测 UIImageView 大小是否小于原始大小(在它被捏之前)?我现在的做法是这样的:

- (IBAction)resizeImage:(UIPinchGestureRecognizer *)sender
{
    UIImageView * imgView = (UIImageView *)[fullSizeImageView.subviews objectAtIndex:0];

    sender.view.transform = CGAffineTransformScale(sender.view.transform, sender.scale, sender.scale);

    NSLog(@"SCALE IS %f WITH STATE %d", sender.scale, sender.state);
    if (imgView.frame.size.width < oriWidth && imgView.frame.size.height < oriHeight) {
       //then it's size is smaller than original
    }
}

我想知道是否有更好的方法来做到这一点?

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1 回答 1

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由于您只是根据 UIPinchGestureRecognizer 的比例缩放 UIImageView,所以比例值 < 1.0 是否意味着 UIImageView 比原来的要小?

于 2012-01-13T02:34:07.520 回答