iOS 11 How to remove black shadow when app is launched

Question

In iOS 11 when user taps on app icon it shows a black colour, in system apps it doesn't happen even i've noticed this in other apps from different developers it doesn't happen. I'm attaching a screenshot.

Answer 1

Same problem was cause in my app. I think your app icon shape is not square.

https://developer.apple.com/ios/human-interface-guidelines/icons-and-images/app-icon/

This link says

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Attribute -> value

Format -> PNG
Color Space -> sRGB or P3
Layers -> Flattened with no transparency
Resolution -> Varies.
Shape -> Square with no rounded corners

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App Icon Shape should be square with no rounded corners. So please try to change your app icon's shape if your app icon's shape is not square.