I have a simple case: I'm using a LaunchScreen.storyboard that has just one UIImage in it. The UIImage is full screen, has 4 constraints to superview, not safe area.
I want to use the same image asset for any screen, it's called "launch" and it's a big one made for the largest iPhone screen. So it's rather 'tall-ish'. This works OK on any new big screen, but for an iPhone SE for example, Aspect Fill is not respected, the image is displayed with vertical bars on left and right.
Event "Scale to Fill" doesn't do anything, image always appears that it's using Aspect FIT.
The same image, used in the app later on, in a UIImage/Image with aspect fill works as intended.
Any idea what might be happening here ?
When I set UIImage aspect fill, I expect the image to fill the entire screen, even if parts of it are gonna be cropeed. But it will keep the aspect ratio
Answers
It seems like you're encountering an issue with the Launch Screen image not displaying as expected on smaller devices like the iPhone SE. This could be due to various factors, including the resolution of the image, the constraints applied to the UIImageView, or settings related to the Launch Screen itself.
Here are some steps you can take to troubleshoot and potentially resolve the issue:
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Check Image Resolution: Ensure that the "launch" image asset has a high enough resolution to fill the screen of smaller devices like the iPhone SE without distortion. If the image resolution is too low, it may not fill the screen properly on smaller devices.
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Verify Constraints: Double-check the constraints applied to the UIImageView in the LaunchScreen.storyboard. Make sure that the constraints are set correctly to fill the entire screen of any device, regardless of size. You mentioned that the UIImageView has constraints to the superview, but it's worth verifying that these constraints are applied correctly.
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Aspect Fill Mode: Confirm that the content mode of the UIImageView is set to "Aspect Fill" in Interface Builder. This mode should ensure that the image fills the entire UIImageView while maintaining its aspect ratio. You mentioned that "Scale to Fill" doesn't work as expected, so make sure that "Aspect Fill" is selected.
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Test on Different Devices: Test the Launch Screen on various simulators or physical devices, including both larger and smaller screen sizes, to see if the issue persists across different devices. This can help identify whether the problem is specific to certain device sizes.
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Consider Device Specific Images: If the "launch" image asset is optimized for larger screens and doesn't display correctly on smaller devices, you may need to create separate versions of the image optimized for different screen sizes. This approach ensures that each device receives an appropriately sized image for the best visual experience.
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Review Launch Screen Settings: Lastly, review any settings related to the Launch Screen in Xcode, such as deployment target, asset catalog configurations, or LaunchScreen.storyboard settings. Ensure that everything is configured correctly for your project.
By following these steps and investigating the potential causes of the issue, you should be able to troubleshoot and resolve the problem with the Launch Screen image not displaying correctly on smaller devices like the iPhone SE.
