UIImageView不能延伸到整个屏幕

Question

I prototype an app and navigation and my UIImageView in ViewControllers, which I created in Storyboard (Xcode 6) does not stretch to full screen. For example, I have UIImageView with 640×1136 image. If I run it on iPhone 5, it shows me full screen. But if I run it on iPhone 6 or 6 Plus, it locates in top left corner. I read so many topics and articles, but nothing helped.

Answer 1

Make sure your UIImage is in an UIImageView and then either add constraints or change the content mode like this:

myImageView.contentMode = UIViewContentModeScaleAspectFit;

Or change it in the story board in the attributes inspector under view .

Here is a list of all the values you can set for this property.

Edit : reading your issue over, I think you definitely need to add constraints to your view. There are lots of tutorials on how to do this: here is apples.

You add your constraints by clicking the pin menu, and then clicking on the four red brackets and clicking "Add Constraints".

Answer 2

只需将AspectRatio约束添加到imageView

Answer 3

使用自动版式并在其上添加所有四个约束（右上，左，下）。