I want to add shadow around collectionview cells. But the shadow is around the images and labels in the cell, and no shadow around the cell. Does someone know how to work it out?
cell.contentView.layer.cornerRadius = 2.0
cell.contentView.layer.borderWidth = 1.0
cell.contentView.layer.borderColor = UIColor.clear.cgColor
cell.contentView.layer.masksToBounds = true
cell.layer.masksToBounds = false
cell.layer.shadowColor = UIColor.black.cgColor
cell.layer.shadowOpacity = 0.5
cell.layer.shadowOffset = CGSize(width: -1, height: 1)
cell.layer.shadowRadius = 1
Shadow around the content(not the border)
You are applying shadow to contentView directly hence it is not working. You need to take a view inside your contentView, put all your content in this view and give some padding (e.g. 8pt) from all side.
Suppose I have named this view as vwContainer, then:
#IBOutlet weak var vwContainer: UIView!
let shadowPath = UIBezierPath(rect: vwContainer.bounds)
vwContainer.layer.masksToBounds = false
vwContainer.layer.shadowColor = UIColor.blackColor().CGColor
vwContainer.layer.shadowOffset = CGSizeMake(0.0, 5.0)
vwContainer.layer.shadowOpacity = 0.5
vwContainer.layer.shadowPath = shadowPath.CGPath
If you are trying to achieve any other UI than please update your question with image.
extension UIView {
func addShadow(color: UIColor, radius: CGFloat = 1, offset: CGSize) {
self.layoutIfNeeded()
self.layer.masksToBounds = false
self.layer.shadowColor = color.cgColor
self.layer.shadowOpacity = 0.5
self.layer.shadowOffset = offset
self.layer.shadowRadius = radius
self.layer.shadowPath = UIBezierPath(rect: self.bounds).cgPath
}
}
Use it as:
let offset = CGSize(width: -1, height: 1)
cell.addShadow(color: .black, offset: offset)
You need to set background color for the contentView as below
cell.contentView.backgroundColor = .white
Related
Before asking this question, I found so many answers at stack overflow but none worked for my case.
Requirement:
I tried:
private func setShadow() {
contentView.layer.masksToBounds = false
contentView.layer.shadowOffset = CGSize(width: 0, height: 1.5)
contentView.layer.shadowRadius = 0.5
contentView.layer.shadowOpacity = 0.5
layer.shadowColor = UIColor.lightGray.cgColor
}
I also play around with offset, radius, opacity; studied about each property, but none combination results in desired output. Any suggestions please.
You can achieve the effect by static layer.
contentView.layer.masksToBounds = false
let shadowLayer = CALayer()
shadowLayer.frame = contentView.bounds
shadowLayer.shadowOffset = CGSize(width: 0, height: 1.5);
shadowLayer.shadowRadius = 0.5
shadowLayer.shadowOpacity = 0.5;
shadowLayer.shadowColor = UIColor.lightGray.cgColor
contentView.layer.addSublayer(shadowLayer)
Please remember to input it in layoutSubviews if you use autolayout .
override func layoutSubviews() {
super.layoutSubviews()
shadowLayer.frame = contentView.bounds
}
override func awakeFromNib() {
super.awakeFromNib()
makeRoundedCorners()
cellBackGroundView.layer.shadowColor = UIColor.black.cgColor
cellBackGroundView.layer.shadowOffset = CGSize(width: 10, height: 10)
cellBackGroundView.layer.shadowOpacity = 1
cellBackGroundView.layer.shadowRadius = 4
cellBackGroundView.clipsToBounds = true
cellBackGroundView.layer.masksToBounds = true
}
I am trying above code but shadow is not showing, not getting what is the issue.
It is because you are applying rounded corner and shadow both to a single view.
You should apply the rounded corner to the first view, and shadow to another view which is the superview of the first view.
For example, If cellBackGroundView is the subView of cell. then You should apply the rounded corner to cellBackGroundView and the shadow to cell(Which is the superView of cellBackGroundView).
addShadowToView(view: cell, value: 3)
addCornerToView(view: cell.cellBackGroundView, value: 8)
Let me share my functions with you,
For Shadow,
func addShadowToView (view : UIView, value: CGFloat) {
view.layer.shadowColor = UIColor.lightGray.cgColor
view.layer.shadowOffset = CGSize(width: value, height: value)
view.layer.shadowOpacity = 1.0
view.layer.shadowRadius = 2
view.clipsToBounds = false
}
For Rounded Corner,
func addCornerToView (view : UIView, value: CGFloat) {
view.layer.cornerRadius = value
view.clipsToBounds = true
}
you can remove clipsToBounds = true attribute
self.shadowColor = color.cgColor
self.shadowOffset = CGSize(width: 0.0, height: 1.4)
self.shadowOpacity = opacity
self.shadowRadius = 0.0
self.masksToBounds = false
Here is what i use for shadows:
extension UIView {
func addShadow(color: UIColor, shadowRadius: CGFloat, opacity: Float) {
layer.shadowColor = color.cgColor
layer.shadowOpacity = opacity
layer.shadowOffset = .zero
layer.shadowRadius = shadowRadius
layer.shadowPath = UIBezierPath(rect: bounds).cgPath
layer.shouldRasterize = true
layer.rasterizationScale = UIScreen.main.scale
}}
Usage:
view.addShadow(color: UIColor.black, shadowRadius: 4, opacity: 1)
You can try this one for collectionViewshadow
class CollectionViewCornerRound: UICollectionView {
var viewCornerRadius: CGFloat = 10 {
didSet {
layoutSubviews()
}
}
override func layoutSubviews() {
super.layoutSubviews()
layer.shadowRadius = 2
layer.shadowOpacity = 0.3
layer.cornerRadius = viewCornerRadius
layer.masksToBounds = true
layer.shadowOffset = .zero
clipsToBounds = true
}
}
I have collectionview cell to which I have a container UIView() which is margined at some distance from the super view. The containerview is rounded and I am trying to apply drop shadow to it. I am acheiving this quite finely until, on some cells it breaks the shadow layer and creates and uneven shadow effect. Following is the current result.:
Following is my code:
extension UIView() {
func dropShadow(color: UIColor, opacity: Float = 0.5, offSet: CGSize, radius: CGFloat = 1, scale: Bool = true) {
self.layer.masksToBounds = false
self.layer.shadowColor = color.cgColor
self.layer.shadowOpacity = opacity
self.layer.shadowOffset = offSet
self.layer.shadowRadius = radius
self.layer.shadowPath = UIBezierPath(roundedRect: self.bounds, cornerRadius: radius).cgPath
self.layer.shouldRasterize = true
self.layer.rasterizationScale = scale ? UIScreen.main.scale : 1
}
}
Following is UICollectionViewCell.swift
override func layoutSubviews() {
super.layoutSubviews()
containerView.dropShadow(color: .lightGray, opacity: 6, offSet: CGSize(width: 0, height: 0), radius: 6, scale: true)
}
Any help is very much appreciated.
I have made use of shadow in a view inside collectionview cell. Please see below link
View Sample
This is inside cellforItem
myCell.imgIcon.backgroundColor = UIColor.white
myCell.imgIcon.layer.shadowColor = UIColor.lightGray.cgColor
myCell.imgIcon.layer.shadowOpacity = 0.5
myCell.imgIcon.layer.shadowOffset = CGSize(width: 0, height: 0)
myCell.imgIcon.layer.shadowRadius = 5
I have multiple textfield but all the textfield have same shadow effects, I need to use extension for that shadow code and use it shortly in viewdid load.
below code I am using
//MARK - Email TextField
email_textfield.borderStyle = .none
email_textfield.backgroundColor = UIColor.groupTableViewBackground // Use anycolor that give you a 2d look.
//To apply corner radius
email_textfield.layer.cornerRadius = email_textfield.frame.size.height / 2
//To apply border
email_textfield.layer.borderWidth = 0.25
email_textfield.layer.borderColor = UIColor.white.cgColor
//To apply Shadow
email_textfield.layer.shadowOpacity = 1
email_textfield.layer.shadowRadius = 1.0
email_textfield.layer.shadowOffset = CGSize.zero // Use any CGSize
email_textfield.layer.shadowColor = UIColor.lightGray.cgColor
//To apply padding
let paddingView : UIView = UIView(frame: CGRect(x: 0, y: 0, width: 20, height: email_textfield.frame.height))
email_textfield.leftView = paddingView
email_textfield.leftViewMode = UITextFieldViewMode.always
you can create extension like this
extension UITextField {
func applyCustomEffect() {
self.borderStyle = .none
self.backgroundColor = UIColor.groupTableViewBackground // Use anycolor that give you a 2d look.
//To apply corner radius
self.layer.cornerRadius = self.frame.size.height / 2
//To apply border
self.layer.borderWidth = 0.25
self.layer.borderColor = UIColor.white.cgColor
//To apply Shadow
self.layer.shadowOpacity = 1
self.layer.shadowRadius = 1.0
self.layer.shadowOffset = CGSize.zero // Use any CGSize
self.layer.shadowColor =
UIColor.lightGray.cgColor
self.layer.sublayerTransform = CATransform3DMakeTranslation(20, 0, 0)
}
}
And apply this effect like below
email_textfield.applyCustomEffect()
I have a tableview with three rows. I am trying to make the table rows have rounded corners and also a shadow effect around the entire tableview. For some reason, I cannot make the tableview both have the rounded corners and shadow effect but I could do them separately if I comment out the code responsible for one of the features. Here is the code I am using:
//this is for shadow effect
tableView.backgroundColor = UIColor.clearColor()
tableView.layer.shadowColor = UIColor.darkGrayColor().CGColor
tableView.layer.shadowOffset = CGSize(width: 2.0, height: 2.0
tableView.layer.shadowOpacity = 1.0
tableView.layer.shadowRadius = 2
// This is for rounded corners
tableView.layer.cornerRadius = 10
tableView.layer.masksToBounds = true
You can add your table view to a container view and add drop shadow to that container view:
let containerView:UIView = UIView(frame:CGRect(x: 10, y: 100, width: 300, height: 400))
self.tableView = UITableView(frame: containerView.bounds), style: .Plain)
containerView.backgroundColor = UIColor.clearColor()
containerView.layer.shadowColor = UIColor.darkGrayColor().CGColor
containerView.layer.shadowOffset = CGSize(width: 2.0, height: 2.0)
containerView.layer.shadowOpacity = 1.0
containerView.layer.shadowRadius = 2
// This is for rounded corners
self.tableView.layer.cornerRadius = 10
self.tableView.layer.masksToBounds = true
self.view.addSubview(containerView)
containerView.addSubview(self.tableView)
Edit
Swift 3.0:
let containerView:UIView = UIView(frame:CGRect(x: 10, y: 100, width: 300, height: 400))
self.tableView = UITableView(frame: containerView.bounds, style: .plain)
containerView.backgroundColor = UIColor.clear
containerView.layer.shadowColor = UIColor.darkGray.cgColor
containerView.layer.shadowOffset = CGSize(width: 2.0, height: 2.0)
containerView.layer.shadowOpacity = 1.0
containerView.layer.shadowRadius = 2
self.tableView.layer.cornerRadius = 10
self.tableView.layer.masksToBounds = true
self.view.addSubview(containerView)
containerView.addSubview(self.tableView)
The RDC's answer is good, but for me the result didnt resolve my case, follow is my fix :
//for table view border
tableView.layer.borderColor = UIColor .grayColor().CGColor
tableView.layer.borderWidth = 1.0
//for shadow
let containerView:UIView = UIView(frame:self.tableView.frame)
//dont use clear color,fit blue color
containerView.backgroundColor = UIColor.blueColor()
//shadow view also need cornerRadius
containerView.layer.cornerRadius = 10
containerView.layer.shadowColor = UIColor.lightGrayColor().CGColor
containerView.layer.shadowOffset = CGSizeMake(-10, 10); //Left-Bottom shadow
//containerView.layer.shadowOffset = CGSizeMake(10, 10); //Right-Bottom shadow
containerView.layer.shadowOpacity = 1.0
containerView.layer.shadowRadius = 2
//for rounded corners
tableView.layer.cornerRadius = 10
tableView.layer.masksToBounds = true
self.view.addSubview(containerView)
self.view.addSubview(tableView)
i tried above solution but in my application tableview didSelectRowAt was not working.
use this Extension for UITabeleView
for corner
for shadow
//if u want shadow for all side use (shadowOffset = .zero)
extension UITableView {
func addCorner(){
self.layer.cornerRadius = 15
self.clipsToBounds = true
}
func addShadow(){
self.layer.shadowColor = UIColor.lightGray.cgColor
self.layer.shadowRadius = 5
self.layer.shadowOpacity = 0.5
self.layer.shadowOffset = .zero
self.layer.masksToBounds = false
}
}
How to use::
self.tableView.addCorner()
self.tableView.addShadow()
Thanks to #beyowulf
I have upgraded for me with Swift 2.2, to
set Border,
Rounded corner and
Drop shadow to the table view
//for table view border
tableView.layer.borderColor = UIColor .grayColor().CGColor
tableView.layer.borderWidth = 1.0
//for shadow
let containerView:UIView = UIView(frame:self.tableView.frame)
containerView.backgroundColor = UIColor.clearColor()
containerView.layer.shadowColor = UIColor.lightGrayColor().CGColor
containerView.layer.shadowOffset = CGSizeMake(-10, 10); //Left-Bottom shadow
//containerView.layer.shadowOffset = CGSizeMake(10, 10); //Right-Bottom shadow
containerView.layer.shadowOpacity = 1.0
containerView.layer.shadowRadius = 2
//for rounded corners
tableView.layer.cornerRadius = 10
tableView.layer.masksToBounds = true
self.view.addSubview(containerView)
containerView.addSubview(tableView)
result looks like