Circular ImageView Swift - ios

I have tried every answer variation I have found and all give me the same result. A weird almost diamond shaped image view. I was using this:
imageView.layer.cornerRadius = imageView.frame.width/2
imageView.clipsToBounds = true
This worked with a previous project I was working on but now when I try it I get the weird diamond.

Here is the solution how to create UIImageView Circular. This Approach is new
Create a new Designable.swift file in your project.
Copy the following code in your Designable.swift file.
import UIKit
#IBDesignable class DesignableImageView: UIImageView { }
#IBDesignable class DesignableButton:UIButton { }
#IBDesignable class DesignableTextField:UITextField { }
extension UIView {
#IBInspectable
var borderWidth :CGFloat {
get {
return layer.borderWidth
}
set(newBorderWidth){
layer.borderWidth = newBorderWidth
}
}
#IBInspectable
var borderColor: UIColor? {
get{
return layer.borderColor != nil ? UIColor(CGColor: layer.borderColor!) :nil
}
set {
layer.borderColor = newValue?.CGColor
}
}
#IBInspectable
var cornerRadius :CGFloat {
get {
return layer.cornerRadius
}
set{
layer.cornerRadius = newValue
layer.masksToBounds = newValue != 0
}
}
#IBInspectable
var makeCircular:Bool? {
get{
return nil
}
set {
if let makeCircular = newValue where makeCircular {
cornerRadius = min(bounds.width, bounds.height) / 2.0
}
}
}
}
Now after this select your ImageView on StoryBoard and Select Identity Inspector from Utilities Panel.
In Custom Class section select the custom class from the drop-down menu naming DesignableImageView and hit return. You will see the designable update after hitting return.
Now go to attribute inspector in utility panel and you can add the desired Corner Radius for the image to be circular.
P.S. If your image is rectangle this will try to make it square and then best possible circle.
Attached images for reference.

Try changing the view mode for the uiimageview. It might have been set to Aspect fit making it to look like a diamond.
Or you can create a circular uiimage using the code below,
imageLayer.contents = yourImage.CGImage
let mask = CAShapeLayer()
let dx = lineWidth + 1.0
let path = UIBezierPath(ovalInRect: CGRectInset(self.bounds, dx, dx))
mask.fillColor = UIColor.blackColor().CGColor
mask.path = path.CGPath
mask.frame = self.bounds
layer.addSublayer(mask)
imageLayer = CAShapeLayer()
imageLayer.frame = self.bounds
imageLayer.mask = mask
imageLayer.contentsGravity = kCAGravityResizeAspectFill
layer.addSublayer(imageLayer)

If you want to create with new image it may be like this
let img = UIImage(named: "logo.png")
UIGraphicsBeginImageContextWithOptions(imgView.bounds.size, false, 0.0);
// Add a clip before drawing anything, in the shape of an rounded rect
UIBezierPath(roundedRect: imgView.bounds, cornerRadius:imgView.bounds.size.width/2).addClip()
img!.drawInRect(imgView.bounds)
imgView.image = UIGraphicsGetImageFromCurrentImageContext()
UIGraphicsEndImageContext();
Ref & If you want to make extension for it : https://stackoverflow.com/a/25459500/4557505
You can find more information in the above link for other alternative solutions

Your image view should be a square in order for this to work.

if you are trying this code in viewDidLoad(), please try it in viewDidLayoutSubviews()
viewDidLayoutSubviews() {
imageView.layer.cornerRadius = imageView.frame.size.width/2
imageView.layer.masksToBounds = true
}

extension UIImageView {
public func maskCircle(inputImage: UIImage) {
self.contentMode = UIViewContentMode.scaleAspectFill
self.layer.cornerRadius = self.frame.height / 2
self.layer.masksToBounds = false
self.clipsToBounds = true
self.image = inputImage
}
}
Usage example of the above extension:
let yourImage:UIImage = UIImage(named: "avatar")!
yourImageView.maskCircle(yourImage)

Related

UIButton Round Corner not working properly on iPhone 5

this is by UI extension method
extension UIView {
func roundCorners(corners:UIRectCorner, radiusWidth: CGFloat,radiusHeight: CGFloat) {
let path = UIBezierPath(roundedRect: self.bounds, byRoundingCorners: corners, cornerRadii: CGSize(width: radiusWidth/2, height: radiusHeight/2))
let mask = CAShapeLayer()
mask.path = path.cgPath
self.layer.mask = mask
}}
by this extension method i want to make my buttons with round corners with this code on viewdidload
btnRideNow.roundCorners(corners: [.topRight], radiusWidth: btnRideNow.frame.width,radiusHeight: btnRideNow.frame.height )
btnRideLater.roundCorners(corners: [.topLeft], radiusWidth: btnRideLater.frame.width,radiusHeight: btnRideLater.frame.height )
but on iPhone 5 i am getting this result
ScreenShot
you can see left button wouldn't render properly but in iPhone 6 this work properly Why?
It's all a matter of timing.
If you call roundCorners too soon, e.g. in viewDidLoad, the button's frame and bounds may not yet have been finalized. But your roundCorners depends on the bounds, so if you add the mask and the button is then resized as a result of layout, you will naturally get the wrong result.
If you want round corners you can simple do:
view.layer.cornerRadius
and if you want a border you can do
view.layer.borderWidth
and color
view.layer.borderColor
Here's a simple subclass that works with IB. You should be able to easily adapt it to your needs:
#IBDesignable
public class Button: UIButton {
#IBInspectable public var borderColor:UIColor? {
didSet {
layer.borderColor = borderColor?.cgColor
}
}
#IBInspectable public var borderWidth:CGFloat = 0 {
didSet {
layer.borderWidth = borderWidth
}
}
#IBInspectable public var cornerRadius:CGFloat {
get {
return layer.cornerRadius
}
set {
layer.cornerRadius = newValue
layer.masksToBounds = newValue > 0
}
}
}
Now if you wish to simply code things, you were given most of the answer. For a complete circle:
view.layer.cornerRadius = view.frame.height / 2
You can use width though, if it's square. But like #Matt says (he's very good), be careful to do this after you have the frame/bounds properly set!

Creating a shadow for a UIImageView that has rounded corners?

I am trying to create an ImageView that has rounded corners and a shadow to give it some depth. I was able to create a shadow for the UIImageView, but whenever I added the code to also make it have rounded corners, it only had rounded corners with no shadow. I have an IBOutlet named myImage, and it is inside of the viewDidLoad function. Does anybody have any ideas on how to make it work? What am I doing wrong?
override func viewDidLoad() {
super.ViewDidLoad()
myImage.layer.shadowColor = UIColor.black.cgColor
myImage.layer.shadowOpacity = 1
myImage.layer.shadowOffset = CGSize.zero
myImage.layer.shadowRadius = 10
myImage.layer.shadowPath = UIBezierPath(rect: myImage.bounds).cgPath
myImage.layer.shouldRasterize = false
myImage.layer.cornerRadius = 10
myImage.clipsToBounds = true
}
If you set clipsToBounds to true, this will round the corners but prevent the shadow from appearing. In order to resolve this, you can create two views. The container view should have the shadow, and its subview should have the rounded corners.
The container view has clipsToBounds set to false, and has the shadow properties applied. If you want the shadow to be rounded as well, use the UIBezierPath constructor that takes in a roundedRect and cornerRadius.
let outerView = UIView(frame: CGRect(x: 0, y: 0, width: 100, height: 100))
outerView.clipsToBounds = false
outerView.layer.shadowColor = UIColor.black.cgColor
outerView.layer.shadowOpacity = 1
outerView.layer.shadowOffset = CGSize.zero
outerView.layer.shadowRadius = 10
outerView.layer.shadowPath = UIBezierPath(roundedRect: outerView.bounds, cornerRadius: 10).cgPath
Next, set the image view (or any other type of UIView) to be the same size of the container view, set clipsToBounds to true, and give it a cornerRadius.
let myImage = UIImageView(frame: outerView.bounds)
myImage.clipsToBounds = true
myImage.layer.cornerRadius = 10
Finally, remember to make the image view a subview of the container view.
outerView.addSubview(myImage)
The result should look something like this:
Swift 5:
You can use the below extension:
extension UIImageView {
func applyshadowWithCorner(containerView : UIView, cornerRadious : CGFloat){
containerView.clipsToBounds = false
containerView.layer.shadowColor = UIColor.black.cgColor
containerView.layer.shadowOpacity = 1
containerView.layer.shadowOffset = CGSize.zero
containerView.layer.shadowRadius = 10
containerView.layer.cornerRadius = cornerRadious
containerView.layer.shadowPath = UIBezierPath(roundedRect: containerView.bounds, cornerRadius: cornerRadious).cgPath
self.clipsToBounds = true
self.layer.cornerRadius = cornerRadious
}
}
How to use:
Drag a UIView on the storyboard
Drag an ImageView inside that UIView
Storyboard should look like this:
Create IBOutlet for both Views, call extension on your ImageView, and pass above created UIView as an argument.
Here is the output :
Finally here is how to
Properly have an image view, with rounded corners AND shadows.
It's this simple:
First some bringup code ..
class ShadowRoundedImageView: UIView {
override init(frame: CGRect) {
super.init(frame: frame); common() }
required init?(coder aDecoder: NSCoder) {
super.init(coder: aDecoder); common() }
private func common() {
backgroundColor = .clear
clipsToBounds = false
self.layer.addSublayer(shadowLayer)
self.layer.addSublayer(imageLayer) // (in that order)
}
#IBInspectable var image: UIImage? = nil {
didSet {
imageLayer.contents = image?.cgImage
shadowLayer.shadowPath = (image == nil) ? nil : shapeAsPath
}
}
and then the layers ...
var imageLayer: CALayer = CALayer()
var shadowLayer: CALayer = CALayer()
var shape: UIBezierPath {
return UIBezierPath(roundedRect: bounds, cornerRadius:50)
}
var shapeAsPath: CGPath {
return shape.cgPath
}
var shapeAsMask: CAShapeLayer {
let s = CAShapeLayer()
s.path = shapeAsPath
return s
}
override func layoutSubviews() {
super.layoutSubviews()
imageLayer.frame = bounds
imageLayer.contentsGravity = .resizeAspectFill // (as preferred)
imageLayer.mask = shapeAsMask
shadowLayer.shadowPath = (image == nil) ? nil : shapeAsPath
shadowLayer.shadowOpacity = 0.80 // etc ...
}
}
Here is the
Explanation
UIImageView is useless, you use a UIView
You need two layers, one for the shadow and one for the image
To round an image layer you use a mask
To round a shadow layer you use a path
For the shadow qualities, obviously add code as you see fit
shadowLayer.shadowOffset = CGSize(width: 0, height: 20)
shadowLayer.shadowColor = UIColor.purple.cgColor
shadowLayer.shadowRadius = 5
shadowLayer.shadowOpacity = 0.80
For the actual shape (the bez path) make it any shape you wish.
(For example this tip https://stackoverflow.com/a/41553784/294884 shows how to make only one or two corners rounded.)
Summary:
• Use two layers on a UIView
Make your bezier and ...
• Use a mask on the image layer
• Use a path on the shadow layer
Here is a another solution (tested code) in swift 2.0
If you set clipsToBounds to true, this will round the corners but prevent the shadow from appearing. So, you can add same size UIView in storyboard behind imageview and we can give shadow to that view
SWIFT 2.0
outerView.layer.cornerRadius = 20.0
outerView.layer.shadowColor = UIColor.blackColor().CGColor
outerView.layer.shadowOffset = CGSizeMake(0, 2)
outerView.layer.shadowOpacity = 1
outerView.backgroundColor = UIColor.whiteColor()
You can use a simple class I have created to add image with rounded corners and shadow directly from Storyboard
You can find the class here

How to set corner radius for all corners with image view rendered from UIGraphicsGetImageFromCurrentImageContext

This is how it looks before:
and after I generate dragging view:
and this is how I generate the dragging view from cell:
private func setupDraggingViewForCell(cell: BWStudentWishlistBookCollectionViewCell) {
UIGraphicsBeginImageContextWithOptions(cell.bounds.size, false, 0)
cell.bookImageView.layer.renderInContext(UIGraphicsGetCurrentContext()!)
draggingView = UIImageView(image: UIGraphicsGetImageFromCurrentImageContext())
draggingView?.clipsToBounds = true
draggingView?.contentMode = .ScaleAspectFit
draggingView?.layer.masksToBounds = true
draggingView?.layer.cornerRadius = 10
view.addSubview(draggingView!)
UIGraphicsEndImageContext()
}
As you can see, only one corner is rounded. Why?
You can set the clipsToBounds to false, and probably it would solve the problem in your case. Otherwise it will show you the full frame of the cover, and you can decide afterwards what to do.
draggingView?.clipsToBounds = false
You Can Directly add this code into your custom cell otherwise as per your need.......
override func awakeFromNib() {
super.awakeFromNib()
// Initialization code
imageView.layer.shadowColor = UIColor.blackColor().CGColor
imageView.layer.shadowOpacity = 1
imageView.layer.cornerRadius = 5
imageView.layer.shadowOffset = CGSizeZero
imageView.layer.shadowRadius = 2
//If you added Aspect to Fill
imageView.clipsToBounds = true
}
I hope this will help you... (Y)
don't know but try to round image than imageView
func makeRoundedImage(image: UIImage, radius: Float) -> UIImage {
var imageLayer: CALayer = CALayer.layer
imageLayer.frame = CGRectMake(0, 0, image.size.width, image.size.height)
imageLayer.contents = (image.CGImage as! AnyObject)
imageLayer.masksToBounds = true
imageLayer.cornerRadius = 10
UIGraphicsBeginImageContext(image.size)
imageLayer.renderInContext(UIGraphicsGetCurrentContext())
var roundedImage: UIImage = UIGraphicsGetImageFromCurrentImageContext()
UIGraphicsEndImageContext()
return roundedImage
}
and then set image to you image view. and clear background color of dragableView
Hope it will help..!

Animating CALayer's shadowPath property

I am aware that a CALayer's shadowPath is only animatable using explicit animations, however I still cannot get this to work. I suspect that I am not passing the toValue properly - as I understand this has to be an id, yet the property takes a CGPathRef. Storing this in a UIBezierPath does not seem to work. I am using the following code to test:
CABasicAnimation *theAnimation = [CABasicAnimation animationWithKeyPath:#"shadowPath"];
theAnimation.duration = 3.0;
theAnimation.toValue = [UIBezierPath bezierPathWithRect:CGRectMake(-10.0, -10.0, 50.0, 50.0)];
[self.view.layer addAnimation:theAnimation forKey:#"animateShadowPath"];
(I am using minus values so as to ensure the shadow extends beyond a view that lies on top of it... the layer's masksToBounds property is set to NO).
How is animation of the shadowPath achieved?
UPDATE
Problem nearly solved. Unfortunately, the main problem was a somewhat careless error...
The mistake I made was to add the animation to the root layer of the view controller, rather than the layer I had dedicated to the shadow. Also, #pe8ter was correct in that the toValue needs to be a CGPathRef cast to id (obviously when I had tried this before I still had no animation due to the wrong layer mistake). The animation works with the following code:
CABasicAnimation *theAnimation = [CABasicAnimation animationWithKeyPath:#"shadowPath"];
theAnimation.duration = 3.0;
theAnimation.toValue = (id)[UIBezierPath bezierPathWithRect:myRect].CGPath;
[controller.shadowLayer addAnimation:theAnimation forKey:#"shadowPath"];
I appreciate this was difficult to spot from the sample code I provided. Hopefully it can still be of use to people in a similar situation though.
However, when I try and add the line
controller.shadowLayer.shadowPath = [UIBezierPath bezierPathWithRect:myRect].CGPath;
the animation stops working, and the shadow just jumps to the final position instantly. Docs say to add the animation with the same key as the property being changed so as to override the implicit animation created when setting the value of the property, however shadowPath can't generate implicit animations... so how do I get the new property to stay after the animation?
Firstly, you did not set the animation's fromValue.
Secondly, you're correct: toValue accepts a CGPathRef, except it needs to be cast to id. Do something like this:
theAnimation.toValue = (id)[UIBezierPath bezierPathWithRect:newRect].CGPath;
You'll also need to set the shadowPath property of the layer explicitly if you want the change to remain after animation.
let cornerRadious = 10.0
//
let shadowPathFrom = UIBezierPath(roundedRect: rect1, cornerRadius: cornerRadious)
let shadowPathTo = UIBezierPath(roundedRect: rect2, cornerRadius: cornerRadious)
//
layer.masksToBounds = false
layer.shadowColor = UIColor.yellowColor().CGColor
layer.shadowOpacity = 0.6
//
let shadowAnimation = CABasicAnimation(keyPath: "shadowPath")
shadowAnimation.fromValue = shadowPathFrom.CGPath
shadowAnimation.toValue = shadowPathTo.CGPath
shadowAnimation.duration = 0.4
shadowAnimation.autoreverses = true
shadowAnimation.removedOnCompletion = true
shadowAnimation.timingFunction = CAMediaTimingFunction(name: kCAMediaTimingFunctionEaseInEaseOut)
layer.addAnimation(shadowAnimation, forKey: "shadowAnimation")
I've met same problem for shadow animation and find solution for persisting shadow after end of animation. You need to set final path to your shadow layer before you start animation. Reverting to initial shadow happens because CoreAnimation does not update properties of original layer, it creates copy of this layer and display animation on this copy (check Neko1kat answer for more details). After animation ended system removes this animated layer and return original layer, that has not updated path and your old shadow appears. Try this code:
let shadowAnimation = CABasicAnimation(keyPath: "shadowPath")
shadowAnimation.fromValue = currentShadowPath
shadowAnimation.toValue = newShadowPath
shadowAnimation.duration = 3.0
shadowLayer.shadowPath = newShadowPath
shadowLayer.add(shadowAnimation, forKey: "shadowAnimation")
Although not directly answer this question, if you just needs a view can drop shadow, you can use my class directly.
/*
Shadow.swift
Copyright © 2018, 2020-2021 BB9z
https://github.com/BB9z/iOS-Project-Template
The MIT License
https://opensource.org/licenses/MIT
*/
/**
A view drops shadow.
*/
#IBDesignable
class ShadowView: UIView {
#IBInspectable var shadowOffset: CGPoint = CGPoint(x: 0, y: 8) {
didSet { needsUpdateStyle = true }
}
#IBInspectable var shadowBlur: CGFloat = 10 {
didSet { needsUpdateStyle = true }
}
#IBInspectable var shadowSpread: CGFloat = 0 {
didSet { needsUpdateStyle = true }
}
/// Set nil can disable shadow
#IBInspectable var shadowColor: UIColor? = UIColor.black.withAlphaComponent(0.3) {
didSet { needsUpdateStyle = true }
}
#IBInspectable var cornerRadius: CGFloat {
get { layer.cornerRadius }
set { layer.cornerRadius = newValue }
}
private var needsUpdateStyle = false {
didSet {
guard needsUpdateStyle, !oldValue else { return }
DispatchQueue.main.async { [self] in
if needsUpdateStyle { updateLayerStyle() }
}
}
}
private func updateLayerStyle() {
needsUpdateStyle = false
if let color = shadowColor {
Shadow(view: self, offset: shadowOffset, blur: shadowBlur, spread: shadowSpread, color: color, cornerRadius: cornerRadius)
} else {
layer.shadowColor = nil
layer.shadowPath = nil
layer.shadowOpacity = 0
}
}
override func prepareForInterfaceBuilder() {
super.prepareForInterfaceBuilder()
updateLayerStyle()
}
override func layoutSublayers(of layer: CALayer) {
super.layoutSublayers(of: layer)
lastLayerSize = layer.bounds.size
if shadowColor != nil, layer.shadowOpacity == 0 {
updateLayerStyle()
}
}
private var lastLayerSize = CGSize.zero {
didSet {
if oldValue == lastLayerSize { return }
guard shadowColor != nil else { return }
updateShadowPathWithAnimationFixes(bonuds: layer.bounds)
}
}
// We needs some additional step to achieve smooth result when view resizing
private func updateShadowPathWithAnimationFixes(bonuds: CGRect) {
let rect = bonuds.insetBy(dx: shadowSpread, dy: shadowSpread)
let newShadowPath = UIBezierPath(roundedRect: rect, cornerRadius: cornerRadius).cgPath
if let resizeAnimation = layer.animation(forKey: "bounds.size") {
let key = #keyPath(CALayer.shadowPath)
let shadowAnimation = CABasicAnimation(keyPath: key)
shadowAnimation.duration = resizeAnimation.duration
shadowAnimation.timingFunction = resizeAnimation.timingFunction
shadowAnimation.fromValue = layer.shadowPath
shadowAnimation.toValue = newShadowPath
layer.add(shadowAnimation, forKey: key)
}
layer.shadowPath = newShadowPath
}
}
/**
Make shadow with the same effect as Sketch app.
*/
func Shadow(view: UIView?, offset: CGPoint, blur: CGFloat, spread: CGFloat, color: UIColor, cornerRadius: CGFloat = 0) { // swiftlint:disable:this identifier_name
guard let layer = view?.layer else {
return
}
layer.shadowColor = color.cgColor
layer.shadowOffset = CGSize(width: offset.x, height: offset.y)
layer.shadowRadius = blur
layer.shadowOpacity = 1
layer.cornerRadius = cornerRadius
let rect = layer.bounds.insetBy(dx: spread, dy: spread)
layer.shadowPath = UIBezierPath(roundedRect: rect, cornerRadius: cornerRadius).cgPath
}
via https://github.com/BB9z/iOS-Project-Template/blob/master/App/General/Effect/Shadow.swift

How to add shadow to ImageView? [duplicate]

I am trying to create an ImageView that has rounded corners and a shadow to give it some depth. I was able to create a shadow for the UIImageView, but whenever I added the code to also make it have rounded corners, it only had rounded corners with no shadow. I have an IBOutlet named myImage, and it is inside of the viewDidLoad function. Does anybody have any ideas on how to make it work? What am I doing wrong?
override func viewDidLoad() {
super.ViewDidLoad()
myImage.layer.shadowColor = UIColor.black.cgColor
myImage.layer.shadowOpacity = 1
myImage.layer.shadowOffset = CGSize.zero
myImage.layer.shadowRadius = 10
myImage.layer.shadowPath = UIBezierPath(rect: myImage.bounds).cgPath
myImage.layer.shouldRasterize = false
myImage.layer.cornerRadius = 10
myImage.clipsToBounds = true
}
If you set clipsToBounds to true, this will round the corners but prevent the shadow from appearing. In order to resolve this, you can create two views. The container view should have the shadow, and its subview should have the rounded corners.
The container view has clipsToBounds set to false, and has the shadow properties applied. If you want the shadow to be rounded as well, use the UIBezierPath constructor that takes in a roundedRect and cornerRadius.
let outerView = UIView(frame: CGRect(x: 0, y: 0, width: 100, height: 100))
outerView.clipsToBounds = false
outerView.layer.shadowColor = UIColor.black.cgColor
outerView.layer.shadowOpacity = 1
outerView.layer.shadowOffset = CGSize.zero
outerView.layer.shadowRadius = 10
outerView.layer.shadowPath = UIBezierPath(roundedRect: outerView.bounds, cornerRadius: 10).cgPath
Next, set the image view (or any other type of UIView) to be the same size of the container view, set clipsToBounds to true, and give it a cornerRadius.
let myImage = UIImageView(frame: outerView.bounds)
myImage.clipsToBounds = true
myImage.layer.cornerRadius = 10
Finally, remember to make the image view a subview of the container view.
outerView.addSubview(myImage)
The result should look something like this:
Swift 5:
You can use the below extension:
extension UIImageView {
func applyshadowWithCorner(containerView : UIView, cornerRadious : CGFloat){
containerView.clipsToBounds = false
containerView.layer.shadowColor = UIColor.black.cgColor
containerView.layer.shadowOpacity = 1
containerView.layer.shadowOffset = CGSize.zero
containerView.layer.shadowRadius = 10
containerView.layer.cornerRadius = cornerRadious
containerView.layer.shadowPath = UIBezierPath(roundedRect: containerView.bounds, cornerRadius: cornerRadious).cgPath
self.clipsToBounds = true
self.layer.cornerRadius = cornerRadious
}
}
How to use:
Drag a UIView on the storyboard
Drag an ImageView inside that UIView
Storyboard should look like this:
Create IBOutlet for both Views, call extension on your ImageView, and pass above created UIView as an argument.
Here is the output :
Finally here is how to
Properly have an image view, with rounded corners AND shadows.
It's this simple:
First some bringup code ..
class ShadowRoundedImageView: UIView {
override init(frame: CGRect) {
super.init(frame: frame); common() }
required init?(coder aDecoder: NSCoder) {
super.init(coder: aDecoder); common() }
private func common() {
backgroundColor = .clear
clipsToBounds = false
self.layer.addSublayer(shadowLayer)
self.layer.addSublayer(imageLayer) // (in that order)
}
#IBInspectable var image: UIImage? = nil {
didSet {
imageLayer.contents = image?.cgImage
shadowLayer.shadowPath = (image == nil) ? nil : shapeAsPath
}
}
and then the layers ...
var imageLayer: CALayer = CALayer()
var shadowLayer: CALayer = CALayer()
var shape: UIBezierPath {
return UIBezierPath(roundedRect: bounds, cornerRadius:50)
}
var shapeAsPath: CGPath {
return shape.cgPath
}
var shapeAsMask: CAShapeLayer {
let s = CAShapeLayer()
s.path = shapeAsPath
return s
}
override func layoutSubviews() {
super.layoutSubviews()
imageLayer.frame = bounds
imageLayer.contentsGravity = .resizeAspectFill // (as preferred)
imageLayer.mask = shapeAsMask
shadowLayer.shadowPath = (image == nil) ? nil : shapeAsPath
shadowLayer.shadowOpacity = 0.80 // etc ...
}
}
Here is the
Explanation
UIImageView is useless, you use a UIView
You need two layers, one for the shadow and one for the image
To round an image layer you use a mask
To round a shadow layer you use a path
For the shadow qualities, obviously add code as you see fit
shadowLayer.shadowOffset = CGSize(width: 0, height: 20)
shadowLayer.shadowColor = UIColor.purple.cgColor
shadowLayer.shadowRadius = 5
shadowLayer.shadowOpacity = 0.80
For the actual shape (the bez path) make it any shape you wish.
(For example this tip https://stackoverflow.com/a/41553784/294884 shows how to make only one or two corners rounded.)
Summary:
• Use two layers on a UIView
Make your bezier and ...
• Use a mask on the image layer
• Use a path on the shadow layer
Here is a another solution (tested code) in swift 2.0
If you set clipsToBounds to true, this will round the corners but prevent the shadow from appearing. So, you can add same size UIView in storyboard behind imageview and we can give shadow to that view
SWIFT 2.0
outerView.layer.cornerRadius = 20.0
outerView.layer.shadowColor = UIColor.blackColor().CGColor
outerView.layer.shadowOffset = CGSizeMake(0, 2)
outerView.layer.shadowOpacity = 1
outerView.backgroundColor = UIColor.whiteColor()
You can use a simple class I have created to add image with rounded corners and shadow directly from Storyboard
You can find the class here

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