Setting the lineWidth of a UIBezierPath not working - ios

Question

I'm trying to draw a circle but the circle border always the same thin no matter what value I set.
It feel like the line with always the default thinnest width.
- (void)drawCircleAtPoint:(CGPoint)center radius: (CGFloat)radius{
UIBezierPath *path = [UIBezierPath bezierPath];
path.lineWidth = 4; // Here
path.lineCapStyle = kCGLineCapRound;
path.lineJoinStyle = kCGLineJoinRound;
CGFloat r = radius;
[path addArcWithCenter:center radius:r startAngle:0.0 endAngle:M_PI*2 clockwise:true];
[path stroke];
CAShapeLayer* layer = [CAShapeLayer new];
layer.path = path.CGPath;
layer.strokeColor = UIColor.redColor.CGColor;
layer.fillColor = UIColor.yellowColor.CGColor;
[layer addAnimation:[self getAnimation] forKey:nil];
[self.layer addSublayer:layer];
}
- (CABasicAnimation*)getAnimation {
CABasicAnimation* animation = [CABasicAnimation animationWithKeyPath:#"strokeEnd"];
animation.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionEaseInEaseOut];
animation.duration = 1.2;
animation.fromValue = #0;
animation.toValue = #1;
return animation;
}
This really drove me crazy.

Answer 1

You need to change the width of CAShapeLayer and not UIBezierPath. Like this :
- (void)drawCircleAtPoint:(CGPoint)center radius: (CGFloat)radius{
CGFloat r = radius;
UIBezierPath *path = [UIBezierPath bezierPath];
[path addArcWithCenter:center radius:r startAngle:0.0 endAngle:M_PI*2 clockwise:true];
[path setLineWidth:4]; // No need
[path setLineCapStyle:kCGLineCapRound];
[path setLineJoinStyle:kCGLineJoinRound];
[path stroke];
CAShapeLayer *layer = [CAShapeLayer new];
layer.lineWidth = 4; // Add it here
layer.path = path.CGPath;
layer.strokeColor = UIColor.redColor.CGColor;
layer.fillColor = UIColor.yellowColor.CGColor;
[layer addAnimation:[self getAnimation] forKey:nil];
[self.view.layer addSublayer:layer];
}