如何使用自动布局管理所有iPhone尺寸的图像尺寸

Question

I am working an iOS app using autolayout.Please refer my screenshot below.I want to manage my image in all iphone and ipad(small size for iphone and big size for ipad) .What type of constraints i should apply.

Answer 1

If you want the same height in all devices you can set the top, the leading and trailing constraints, then the "equal height" to the superview and change the multiplier to 0.3 like in the image:

Answer 2

Yes, you can apply Aspect Ratio constraint to UIImageView to its own.

Answer 3

To resize image view ratio-wise you need to give following constraints.

• Leading, trailing, top to super view
• Aspect ratio to image view

So as width increases, height will also be increases with ratio.

Answer 4

Follow below steps:-

• Set Equal height UIImage to UIView.

• Change multiplier which is in Attribute Inspector by click on Equal Height constraint.