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I have a UIImageView that I’ve added a PinchGestureRecognizer to. Currently, the image is resized nicely when pinching, but I want to be able to resize the image without maintaining the aspect ratio. So if the user pinches horizontally, the image view’s width would enlarge; if they pinch vertically, the height would enlarge and so forth.
Can anyone give me a hint on how I could do that please?
Write a custom gesture recognizer that requires two fingers to be on screen.
Once both fingers are on screen store their offset to the imageView’s border in some UIEdgeInsets.
In touchesMoved, check if both fingers are onscreen: if so, calculate the new frame by applying the edgeInsets in the current touch position.
Header: click
Implementation: click
Works well and feels more natural than other implementations I’ve seen.