multiplier to the width and height in objective-c

Question

How to give multiplier to the width and height of the UIImageView .

I need to add the constraint to the image with have a height of 200*400-1x,400*1600-2x .I have set the constraints in the 12.9 iPad .

Please check this link . https://stackoverflow.com/questions/35455194/calculating-aspect-ratio-for-all-sizes-of-iphone/35455631#35455631 — Rahul Patel, Jan 22 '18 at 07:33
pls go through : https://developer.apple.com/library/content/documentation/UserExperience/Conceptual/AutolayoutPG/AnatomyofaConstraint.html — MAhipal Singh, Jan 22 '18 at 07:39

score 0 · Answer 1 · answered Jan 22 '18 at 07:34

0

Do it programmatically. Create an IBoutlet for your constraints. Update your constraint accordingly. yourConstraint.constant = 200*400-1x

answered Jan 22 '18 at 07:34

Bilal Awan

4,730
1
8
15

score 0 · Answer 2 · edited Jan 22 '18 at 07:37

0

This constraint give the image view 0.7 of the width of the view

 [self.view addConstraint:[NSLayoutConstraint constraintWithItem:self.imageView
      attribute:NSLayoutAttributeWidth 
      relatedBy:NSLayoutRelationEqual 
      toItem:self.view 
      attribute: NSLayoutAttributeWidth 
      multiplier:0.7
      constant:0]];

edited Jan 22 '18 at 07:37

pkc456

8,350
38
53
109

answered Jan 22 '18 at 07:34

Shehata Gamal

98,760
8
65
87

multiplier to the width and height in objective-c

2 Answers2