Ask: iOS question - border that rotates with view but doesn't scale with it?

https://news.ycombinator.com/item?id=4034308

by DrorY • 14 years ago

1 3 14 years ago

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I am a long time web developer. Started developing for ios. I've created a view. The user can rotate, scale and move it. My question is, how do I attach a border to it in such a way that the border will rotate with the view, but won't scale with it?<p>Thanks.

objclxt• 14 years ago

Consider using StackOverflow for questions like this...there's a substantial number of iOS devs who hang around there (myself included!) - plus it's far more likely somebody else with the same problem will stumble upon your question and spread the knowledge.

With regards to your specific question, if you use the various border properties of the underlying `CALayer` (`borderColor`, `borderWidth`, etc) and scale the view by changing its bounds the border will retain the same width as before. You can also scale a view by transforming it, but that's slightly different.

DrorY• 14 years ago

Thank you very much for your response. Specifically it seems as though using the transformations will cause my border to scale as well. And since I am using UIPinchGestureRecognizers, manipulating the CALayer's width and height properties seems somewhat conter productive.

jacksondeane• 14 years ago

I'd probably use 2 different views, one for the view you are manipulating and 1 for the border. You can apply the same rotation transforms to both views but only apply the scale transforms to the main view.

Ask: iOS question - border that rotates with view but doesn't scale with it?

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