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iOS

Posted by Chris Hunter
Chris Hunter
2,091 Points

Resize UIImageView in Swift

I am trying to make a UIImageView frame (just a solid colour needed, I have tried with a solid colour image and no image with a background colour) change its height programatically using swift. I have placed the UIIMageView in using interface builder in Xcode 6. I have set several constrains on it using auto layout. I have tried leaving the height constraint blank, as well as having it set to a specific value.

Basically I just need the UIImageView to grow in height, but all other values stay the same.

Ratio and height are CGFloats calculated above, and I have debugged and checked that they calculate correctly. It is just that the height is not updating. The name of the UIMageView is blankScroller

var newHeight: CGFloat = ratio*height;
blankScroller.frame = CGRectMake(
    blankScroller.frame.origin.x,
    blankScroller.frame.origin.y,
    blankScroller.frame.size.width,
    newHeight);

have also tried:

blankScroller.frame.size.height = newHeight;

Yet none of these seem to work, the UIImageView stays a constant size. Thanks for any help!