I am doing simple things. As I am learning to implement CAGradientLayer.
The gradient you see is of Label. I am using autoresizing(not Autolayout). Apart from this have no code written. Autoresizing is not a problem since I've not touched that.
CAGradientLayer *gradientLayer = [[CAGradientLayer alloc]init];
gradientLayer.frame = lblHolder.frame;
gradientLayer.colors = [NSArray arrayWithObjects:(id)[[UIColor redColor] CGColor], (id)[[UIColor greenColor] CGColor], nil];
[lblHolder.layer insertSublayer:gradientLayer atIndex:0];
Try to make the following change:
gradientLayer.frame = lblHolder.bounds;