IKImage Gesture zoom rotate

Question

In my application I use IKImageview to preview a image,and by default it supports two finger gestures like moving up,down,left,right. Now I want to add rotate and zoom gestures to it ,does anyone has any good ideas? Thank you very much.

does anyone know how to subclass IKImageview to support zoom gesture?

I didn't find any button to press to accept . I am new to stack overflow sorry again. — hodge, Jun 23 '12 at 01:14
just left to every answer is a checkmarker. just click the one next to the correct answer. — Pfitz, Jun 23 '12 at 04:17

score 0 · Accepted Answer · edited Jul 23 '12 at 07:21

0

Finally figure it out. Just subclass the IKImageView and add:

- (void)rotateWithEvent:(NSEvent *)event{
    [self setFrameCenterRotation:([self frameCenterRotation] + [event rotation])];
}

Problem solved!

edited Jul 23 '12 at 07:21

Flexo

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answered Jul 23 '12 at 06:00

hodge

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IKImage Gesture zoom rotate

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