In figma, there's an effect you can apply to a view called a layer blur.
I cannot figure out how to replicate this sort of effect as its own view in Swift.
For example, say I want to add a view that goes under a button with a layer effect as so:
I have tried exporting the blur view from figma and using it as an image in code, but it just ends up like this:
These are the settings for the layer blur view I want to implement:
Any and all help would be greatly appreciated.
You can add drop shadow to a button this way.
Add an extension of UIView Like this.
extension UIView{
func dropShadow() {
layer.masksToBounds = false
layer.shadowColor = UIColor.black.cgColor
layer.shadowOpacity = 0.16
layer.shadowOffset = CGSize(width: 0, height: 3)
layer.shadowRadius = 3
}
}
Add drop shadow to your button by adding this line.
yourButton.dropShadow()
enter image description hereYou can add a shadow to your Button(View) for that purpose
view.layer.shadowColor = UIColor.black.cgColor
view.layer.shadowRadius = 20
view.layer.shadowOpacity = 1
view.layer.shadowOffset = .zero
shadowOpacity: sets the transparency, where 0 will be without shadow, and 1 is the strongest.
shadowRadius: sets how wide the shadow is.
shadowOffset: sets the distance between the view and shadow.
Following is my code to create CardView and add shadow effect
override func awakeFromNib() {
super.awakeFromNib()
self.layoutIfNeeded()
cellBgview.layer.cornerRadius = 15.0
cellBgview.layer.borderWidth = 1.0
cellBgview.layer.borderColor = UIColor.clear.cgColor
cellBgview.layer.shadowColor = UIColor.gray.cgColor
cellBgview.layer.shadowRadius = 14.0
cellBgview.layer.shadowOpacity = 0.5
cellBgview.layer.shadowPath = UIBezierPath(roundedRect: cellBgview.bounds, cornerRadius: cellBgview.layer.cornerRadius).cgPath
// In
}
This looks like this
Corner radius not working in this case to make corner radius work I have added following code
cellBgview.clipsToBounds = true
After adding above code it looks this
Note that after adding cellBgview.clipsToBounds = true card elevation and shadow is missing but corner radius appears
How to make card view with corner radius and shadow without image getting clip.
Also tried
cellBgview.layer.masksToBounds = true
but it is not working.
Add another UIView in your cell and add imageView in that UIView...Apply corner radius to imageView. Apply shadow to that UIView holding imageView. add clipsToBounds to imageView not to that UIView because clipsToBounds clip anything outside bounds that can be shadow as well. will solve your issue
add a uiview in your cell, lets call it content view. in this view add another uiview in which you'll add the image view and your bottom labels. So actual hierarchy would look like this
--Cell
---UIView //add shadow on this view, also make its backgroundColor to clear color
---UIView //add corner radius to this view and clipsToBounds = true for this view
---UIImageView
---Bottom Labels / Another UIView / Stack View
this hierarchy will help you to achieve the image round corner only on top and view round corners on bottom content
Try this to achieve Shadow, Corner Radius, Border in one view.
cellBgview.backgroundColor = UIColor.white
let cellBgViewLayer = cellBgview.layer()
cellBgViewLayer?.masksToBounds = false
cellBgViewLayer?.shadowColor = UIColor.lightGray.cgColor
cellBgViewLayer?.shadowOpacity = 1.0
cellBgViewLayer?.shadowRadius = 6.0
cellBgViewLayer?.shadowOffset = CGSize(width: 0, height: 0)
cellBgViewLayer?.shouldRasterize = true
cellBgViewLayer?.cornerRadius = 5.0
cellBgViewLayer?.borderColor = UIColor.lightGray.cgColor
cellBgViewLayer?.borderWidth = 1.0
cellBgViewLayer?.shadowPath = UIBezierPath(rect: cellBgview.bounds).cgPath
I have a view inside the table view cell and I want to show shadow to that view if below situations
if view on first cell then drop shadow to top, left, right.
if view on last cell then drop shadow to bottm, left, right.
other wise drop shadow only on left and right.
Thank You.
yourView.layer.shadowColor = UIColor.black.cgColor
yourView.layer.shadowOffset = CGSize(width: 0.0, height: 0.0)
yourView.layer.shadowOpacity = 0.5
yourView.layer.shadowRadius = 2.0
And adapt the code below to the way you want for the corners that you'd like to drop shadow.
var shadowRect: CGRect = yourView.bounds.insetBy(dx: 0, dy: 4) // inset top and bottom of the cell
yourView.layer.shadowPath = UIBezierPath(rect: shadowRect).cgPath
put this code in your class
extension UIView {
func dropShadow(scale: Bool = true) {
layer.masksToBounds = false
layer.shadowColor = UIColor.black.cgColor
layer.shadowOpacity = 0.2
layer.shadowOffset = CGSize.zero
layer.shadowRadius = 5
}}
Then call it:--
YourView.dropShadow(scale: true)
Is there a way to drop a shadow around the border of a UITextView to give it a 3D effect? The textView has rounded corners.
I don't want to drop a shadow for the content of the textView (i.e. text). Just around the textView border only.
I need to clipToBounds on the textView for the rounded corners.
So far this is what I have tried:
let shadowLayer = CAShapeLayer()
shadowLayer.path = UIBezierPath(roundedRect: textView.bounds, cornerRadius: 15).cgPath
shadowLayer.fillColor = UIColor.clear.cgColor
shadowLayer.shadowColor = UIColor.black.cgColor
shadowLayer.shadowPath = shadowLayer.path
shadowLayer.shadowOffset = CGSize(width: 2, height: 2)
shadowLayer.shadowOpacity = 1
shadowLayer.shadowRadius = 2
textView.layer.addSublayer(shadowLayer)
This results in:
Reason : Clips to bounds = true and shadow on the same view doest not work simultaneous. So to sort out this you have to do follow.
Add your TextView in a UIView (says viewTextBG).
TextView Constraints : top bottom, leading, trailing = 0 wrt. viewTextBG.
Give corner radius to textview and viewTextBG
textview.cornerRadius = 10
viewTextBG.cornerRadius = 10
Give clipsToBounds to textview and viewTextBG
textview.clipsToBounds = True
viewTextBG.clipsToBounds = false
Now give shadow to viewTextBG.
Now everything works, thats all.
Is there a built in way to create round-cornered UILabels? If the answer is no, how would one go about creating such an object?
iOS 3.0 and later
iPhone OS 3.0 and later supports the cornerRadius property on the CALayer class. Every view has a CALayer instance that you can manipulate. This means you can get rounded corners in one line:
view.layer.cornerRadius = 8;
You will need to #import <QuartzCore/QuartzCore.h> and link to the QuartzCore framework to get access to CALayer's headers and properties.
Before iOS 3.0
One way to do it, which I used recently, is to create a UIView subclass which simply draws a rounded rectangle, and then make the UILabel or, in my case, UITextView, a subview inside of it. Specifically:
Create a UIView subclass and name it something like RoundRectView.
In RoundRectView's drawRect: method, draw a path around the bounds of the view using Core Graphics calls like CGContextAddLineToPoint() for the edges and and CGContextAddArcToPoint() for the rounded corners.
Create a UILabel instance and make it a subview of the RoundRectView.
Set the frame of the label to be a few pixels inset of the RoundRectView's bounds. (For example, label.frame = CGRectInset(roundRectView.bounds, 8, 8);)
You can place the RoundRectView on a view using Interface Builder if you create a generic UIView and then change its class using the inspector. You won't see the rectangle until you compile and run your app, but at least you'll be able to place the subview and connect it to outlets or actions if needed.
For devices with iOS 7.1 or later, you need to add:
yourUILabel.layer.masksToBounds = YES;
yourUILabel.layer.cornerRadius = 8.0;
For Swift IOS8 onwards based on OScarsWyck answer:
yourUILabel.layer.masksToBounds = true
yourUILabel.layer.cornerRadius = 8.0
you have an UILabel called: myLabel.
in your "m" or "h" file import: #import <QuartzCore/QuartzCore.h>
in your viewDidLoad write this line: self.myLabel.layer.cornerRadius = 8;
depends on how you want you can change cornerRadius value from 8 to other number :)
Good luck
You can make rounded border with width of border of any control in this way:-
CALayer * l1 = [lblName layer];
[l1 setMasksToBounds:YES];
[l1 setCornerRadius:5.0];
// You can even add a border
[l1 setBorderWidth:5.0];
[l1 setBorderColor:[[UIColor darkGrayColor] CGColor]];
Just replace lblName with your UILabel.
Note:- Don't forget to import <QuartzCore/QuartzCore.h>
Swift 3
If you want rounded label with background color, in addition to most of the other answers, you need to set layer's background color as well. It does not work when setting view background color.
label.layer.cornerRadius = 8
label.layer.masksToBounds = true
label.layer.backgroundColor = UIColor.lightGray.cgColor
If you are using auto layout, want some padding around the label and do not want to set the size of the label manually, you can create UILabel subclass and override intrinsincContentSize property:
class LabelWithPadding: UILabel {
override var intrinsicContentSize: CGSize {
let defaultSize = super.intrinsicContentSize
return CGSize(width: defaultSize.width + 12, height: defaultSize.height + 8)
}
}
To combine the two you will also need to set label.textAlignment = center, otherwise the text would be left aligned.
I made a swift UILabel subclass to achieve this effect. In addition I automatically set the text color to either black or white for maximal contrast.
Result
Used SO-Posts:
How to draw border around a UILabel?
Add a border outside of a UIView
Check if UIColor is dark or bright?
Playground
Just paste this into an iOS Playground:
//: Playground - noun: a place where people can play
import UIKit
class PillLabel : UILabel{
#IBInspectable var color = UIColor.lightGrayColor()
#IBInspectable var cornerRadius: CGFloat = 8
#IBInspectable var labelText: String = "None"
#IBInspectable var fontSize: CGFloat = 10.5
// This has to be balanced with the number of spaces prefixed to the text
let borderWidth: CGFloat = 3
init(text: String, color: UIColor = UIColor.lightGrayColor()) {
super.init(frame: CGRectMake(0, 0, 1, 1))
labelText = text
self.color = color
setup()
}
required init?(coder aDecoder: NSCoder) {
super.init(coder: aDecoder)
setup()
}
func setup(){
// This has to be balanced with the borderWidth property
text = " \(labelText)".uppercaseString
// Credits to https://stackoverflow.com/a/33015915/784318
layer.borderWidth = borderWidth
layer.cornerRadius = cornerRadius
backgroundColor = color
layer.borderColor = color.CGColor
layer.masksToBounds = true
font = UIFont.boldSystemFontOfSize(fontSize)
textColor = color.contrastColor
sizeToFit()
// Credits to https://stackoverflow.com/a/15184257/784318
frame = CGRectInset(self.frame, -borderWidth, -borderWidth)
}
}
extension UIColor {
// Credits to https://stackoverflow.com/a/29044899/784318
func isLight() -> Bool{
var green: CGFloat = 0.0, red: CGFloat = 0.0, blue: CGFloat = 0.0, alpha: CGFloat = 0.0
self.getRed(&red, green: &green, blue: &blue, alpha: &alpha)
let brightness = ((red * 299) + (green * 587) + (blue * 114) ) / 1000
return brightness < 0.5 ? false : true
}
var contrastColor: UIColor{
return self.isLight() ? UIColor.blackColor() : UIColor.whiteColor()
}
}
var label = PillLabel(text: "yellow", color: .yellowColor())
label = PillLabel(text: "green", color: .greenColor())
label = PillLabel(text: "white", color: .whiteColor())
label = PillLabel(text: "black", color: .blackColor())
If you want rounded corner of UI objects like (UILabel, UIView, UIButton, UIImageView) by storyboard then set clip to bounds true and set User Defined Runtime Attributes Key path as
layer.cornerRadius, type = Number and value = 9 (as your requirement)
xCode 7.3.1 iOS 9.3.2
_siteLabel.layer.masksToBounds = true;
_siteLabel.layer.cornerRadius = 8;
Another method is to place a png behind the UILabel. I have views with several labels that overlay a single background png that has all the artwork for the individual labels.
UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, 100, 30)];
label.text = #"Your String.";
label.layer.cornerRadius = 8.0;
[self.view addSubview:label];
Works fine in Xcode 8.1.2 with Swift 3
.cornerRadius is the key property to set rounded edges. If you are using the same style for all labels in your application, I would recommend for an extension method.
Code:
// extension Class
extension UILabel {
// extension user defined Method
func setRoundEdge() {
let myGreenColor = (UIColor(red: -0.108958, green: 0.714926, blue: 0.758113, alpha: 1.0))
//Width of border
self.layer.borderWidth = 1.0
//How much the edge to be rounded
self.layer.cornerRadius = 5.0
// following properties are optional
//color for border
self.layer.borderColor = myGreenColor.cgColor
//color for text
self.textColor = UIColor.red
// Mask the bound
self.layer.masksToBounds = true
//clip the pixel contents
self.clipsToBounds = true
}
}
Output:
Why Extension method?
Create a Swift file and add the following code, which has the Extention method to the "UILabel" class, where this method is user defined but will work for all the label in your application and will help to maintain consistency and clean code, if you change any style in future require only in the extension method.
In Monotouch / Xamarin.iOS I solved the same problem like this:
UILabel exampleLabel = new UILabel(new CGRect(0, 0, 100, 50))
{
Text = "Hello Monotouch red label"
};
exampleLabel.Layer.MasksToBounds = true;
exampleLabel.Layer.CornerRadius = 8;
exampleLabel.Layer.BorderColor = UIColor.Red.CGColor;
exampleLabel.Layer.BorderWidth = 2;
Works perfect in Swift 2.0
#IBOutlet var theImage: UIImageView! //you can replace this with any UIObject eg: label etc
override func viewDidLoad() {
super.viewDidLoad()
//Make sure the width and height are same
self.theImage.layer.cornerRadius = self.theImage.frame.size.width / 2
self.theImage.layer.borderWidth = 2.0
self.theImage.layer.borderColor = UIColor.whiteColor().CGColor
self.theImage.clipsToBounds = true
}
Did you try using the UIButton from the Interface builder (that has rounded corners) and experimenting with the settings to make it look like a label. if all you want is to display static text within.
Depending on what exactly you are doing you could make an image and set it as the background programatically.