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Editorial Team
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Asked: 2026-05-24T10:47:38+00:00

How do I properly use standard and retina display icons in iOS? Do I

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How do I properly use standard and retina display icons in iOS? Do I need to detect the resolution of the device? If so, what is the best procedure to do this. Do I need to do something similar to the follow?

UINavigationBar *navbar... 

NSString *imageName;

if (isRetinaDisplay)
{
    imageName = @"hello@2x.png";
}
else
{
    imageName = @"hello.png";
}

navbar.tabBarItem.image = [UIImage imageNamed:imageName];

Any suggestions would be appreciated. Thank you.

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1 Answer

  1. Editorial Team

    No, you don’t. iOS will automatically detect and use @2x images on hi-res devices. Check out the Drawing and Printing Guide for more information. An excerpt:

    On devices with high-resolution screens, the imageNamed:, imageWithContentsOfFile:, and initWithContentsOfFile: methods automatically looks for a version of the requested image with the @2x modifier in its name. It if finds one, it loads that image instead. If you do not provide a high-resolution version of a given image, the image object still loads a standard-resolution image (if one exists) and scales it during drawing.

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