How can I convert my current application to retina display app and I’ve to make sure that the same app works in iphone 3 as well.
If its just to update my images to high resolution, it will also work in iphone 3. then there will be no meaning for “retina display” app.
How can I convert my current application to retina display app and I’ve to
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Retina Display version will use a higher resolution of an image (if it’s supplied in the app). Refer to the Apple doc for details.