UIImageView change Width and Height

Question

I\'ve read various posts on here asking similar questions... I\'ve tried various ways that were posted including bounds and frames etc. including the following:

Answer 1

If you tried those methods cannot work, the only way to do it is to add the constraint of width and height to the UIImageView.

// Create the constraint in code
NSLayoutConstraint *constraint0 = [NSLayoutConstraint constraintWithItem: myImage attribute:NSLayoutAttributeWidth relatedBy:NSLayoutRelationEqual toItem:nil attribute:NSLayoutAttributeWidth multiplier:1.0f constant: yourNewsWidth];


NSLayoutConstraint *constraint1 = [NSLayoutConstraint constraintWithItem: myImage attribute:NSLayoutAttributeHeight relatedBy:NSLayoutRelationEqual toItem:nil attribute:NSLayoutAttributeHeight multiplier:1.0f constant: yourNewsHeight];

[myImage addConstraint:constraint0];
[myImage addConstraint:constraint1];