iOS: Image scaling using auto layout in Storyboard

Question

I have a launch screen with a image at bottom right corner. Constraints are as follows:

1. Width: Width of UIImageView must be one fourth of superview.
2. Left: Left margin is zero with superview
3. Bottom: Bottom margin is zero with superview

and also mode for imageview is set to Aspect Fit .

What should be the height constraint, so that the image in the UIImageView is bottom aligned for all devices and all orientations.

In the screenshots, the image is not bottom aligned, although the imageview is.

Answer 1

因此，解决我的问题的方法是Aspect Ratio约束，并考虑所有约束。