Rounded views not working in iOS 9 - ios

Question

I have a code that takes a view and rounds it corners - turning it into a circle:
imageView = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, 8, 8)];
imageView.layer.cornerRadius = imageView.frame.size.width/2;
imageView.layer.masksToBounds = YES;
This works great on iOS 7 and iOS 8 - but doesn't work on iOS 9.
How can I fix it?

Answer 1

Turns out adding a background color to the ImageView fixes the issue...

Answer 2

Thanks to #YogevSitton answer I've searched over docs and found this:
It appears to be something in apple docs:
By default, the corner radius does not apply to the image in the
layer’s contents property; it applies only to the background color and
border of the layer.
So, to set cornerRadius to UIImageView it needs to have backgroundColor.

Answer 3

If this is not working for anymore, make a component. Subclass from UIView. Do this changes on this subclass:
subclass.layer.cornerRadius = subclass.frame.size.width/2;
subclass.layer.masksToBounds = YES;
and add the imageView to this view. This will solve the problem.
#implementation CircleImageView{
UIImageView* imageView;
CGFloat width;
}
- (instancetype) initWithTopLeft:(CGPoint)topLeft width:(CGFloat)wdth{
self = [super initWithFrame:CGRectMake(topLeft.x, topLeft.y, wdth, wdth)];
if (self) {
width = wdth;
[self createContent];
self.layer.cornerRadius = width/2.;
self.clipsToBounds = YES;
}
return self;
}
- (void) createContent{
imageView = [[UIImageView alloc]initWithFrame:CGRectMake(0, 0, width, width)];
[self addSubview:imageView];
}

Answer 4

Try adding Quartzcore.framework in Linked Framework and Libraries
then importing the same in your viewController.m file

Answer 5

I jsut subClass UIImageView ,like this ,I use PureLayout control the imageView,like below:
[imageViewIcon autoPinEdge:ALEdgeLeft toEdge:ALEdgeLeft ofView:self.contentView withOffset:20];
[imageViewIcon autoPinEdge:ALEdgeTop toEdge:ALEdgeTop ofView:self.contentView withOffset:10];
[imageViewIcon autoPinEdge:ALEdgeBottom toEdge:ALEdgeBottom ofView:self.contentView withOffset:-10];
[imageViewIcon autoMatchDimension:ALDimensionHeight toDimension:ALDimensionWidth ofView:imageViewIcon];
-(instancetype)init
{
if (self = [super init]) {
}
return self;
}
-(void)layoutSubviews
{
[super layoutSubviews];
[self layoutIfNeeded];
self.layer.masksToBounds = YES;
self.layer.cornerRadius = self.width*0.5;
}