iOS UIImageView比例尺

Question

I need to make a table of different images which has to fit exactly to a iPad Mini 2.

So I have a picture with height = 60 and width = 621. If I put these sizes into the UIImageView , the picture fits nearly the whole screen of my iPad.

Maybe someone can tell me why this happens, as I am very new to programming with Xcode.

Answer 1

The problem is the photo is either not constrained to a scaled size (ex 30x310 to get a 2x downscale) or it is not in a stack, in the table. Try putting the images in a stack and constrain the stack. Let me know if that helps!

Answer 2

An UIImageView holds an image.

If it stretches to fill the entire screen, it is likely that the size of your UIImageView is quite large. By default, the image will stretch and fill the space of your UIImageView.

If you want the image to stay in ratio, and stretch to the UIImageView:

imageView.contentMode = UIViewContentModeScaleAspectFit;

If you want the image to stay exactly the way it is:

imageView.contentMode = UIViewContentModeCenter;