Giving UIView rounded corners

Question

My login view has a subview which has a UIActivityView and a UILabel saying  Signing In      This subview has corners which aren t rounded  How can I make them round   Is there any way to do it inside my xib

User · Answer

ON Xcode 6 Your try       self layer layer cornerRadius   5 0f    or      self layer layer cornerRadius   5 0f      self layer clipsToBounds   YES

User · Answer

In Swift 4 2 and Xcode 10 1  let myView   UIView   myView frame   CGRect x  200  y  200  width  200  height  200  myView myViewCorners     myView myViewCorners width  myView frame width   Pass View width view addSubview myView   extension UIView         If you want only round corners     func myViewCorners             layer cornerRadius   10         layer borderWidth   1 0         layer borderColor   UIColor red cgColor         layer masksToBounds   true             If you want complete round shape  enable above comment line     func myViewCorners width CGFloat            layer cornerRadius   width 2         layer borderWidth   1 0         layer borderColor   UIColor red cgColor         layer masksToBounds   true

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UIView  viewWithRoundedCornersSize float cornerRadius UIView   original           Create a white border with defined width     original layer borderColor    UIColor yellowColor  CGColor      original layer borderWidth   1 5          Set image corner radius     original layer cornerRadius  cornerRadius          To enable corners to be  clipped       original setClipsToBounds YES       return original

User · Answer

You need to first import header file  lt QuartzCore QuartzCore h gt     import QuartzCore QuartzCore h gt    yourView layer setCornerRadius 8 0f   yourView layer borderColor    UIColor redColor  CGColor  yourView layer borderWidth   2 0f   yourView layer setMasksToBounds YES     Don t miss to use -setMasksToBounds   otherwise the effect may not be shown

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You can use following custom UIView class which can also change border color and width  As this is IBDesignalbe You can change the attributes in interface builder as well     import UIKit   IBDesignable public class RoundedView  UIView         IBInspectable var borderColor  UIColor   UIColor white           didSet               layer borderColor   borderColor cgColor                       IBInspectable var borderWidth  CGFloat   2 0           didSet               layer borderWidth   borderWidth                       IBInspectable var cornerRadius  CGFloat   0 0           didSet               layer cornerRadius   cornerRadius

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As described in this blog post  here is a method to round the corners of a UIView     void roundView  UIView   view onCorner  UIRectCorner rectCorner radius  float radius       UIBezierPath  maskPath    UIBezierPath bezierPathWithRoundedRect view bounds                                                    byRoundingCorners rectCorner                                                          cornerRadii CGSizeMake radius  radius        CAShapeLayer  maskLayer     CAShapeLayer alloc  init       maskLayer frame   view bounds      maskLayer path   maskPath CGPath       view layer setMask maskLayer        maskLayer release       The cool part about it is that you can select which corners you want rounded up

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if round corner not working in viewDidload   it s better to write code in viewDidLayoutSubview    - void viewDidLayoutSubviews       viewTextfield layer cornerRadius   10 0                                                      viewTextfield layer borderWidth   1 0f      viewTextfield layer masksToBounds    YES      viewTextfield layer shadowRadius   5      viewTextfield layer shadowOpacity   0 3      viewTextfield clipsToBounds   NO      viewTextfield layer shadowOffset   CGSizeMake 0 0f  0 0f       Hope this helps

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Now you can use a swift category in UIView  code bellow the picture  in with  IBInspectable to show the result at the storyboard  If you are using the category  use only cornerRadius and not layer cornerRadius as a key path   extension UIView        IBInspectable var cornerRadius  CGFloat           get               return layer cornerRadius                   set               layer cornerRadius   newValue             layer masksToBounds   newValue  gt  0

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- SwiftUI  In SwiftUI  you can use cornerRadius modifier directly on any View you want  For example of this question   Text  Signing In           padding 16       background Color red       cornerRadius 50      Note that there is no more diamond like radius  so even if you set the cornerRadius more than half of the height  it will round smoothly   Checkout this answer to se how to Round Specific Corners in SwiftUI

User · Answer

Try this   import  lt QuartzCore QuartzCore h gt     not necessary for 10 years now            view layer cornerRadius   5  view layer masksToBounds   true    Note  If you are trying to apply rounded corners to a UIViewController s view  it should not be applied in the view controller s constructor  but rather in -viewDidLoad  after view is actually instantiated

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Swift 4 - Using IBDesignable      IBDesignable     class DesignableView  UIView              extension UIView                 IBInspectable         var cornerRadius  CGFloat               get                   return layer cornerRadius                           set               layer cornerRadius   newValue

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You can also use an image   UIImage  maskingImage    UIImage imageNamed   bannerBarBottomMask png    CALayer  maskingLayer    CALayer layer   maskingLayer frame   CGRectMake - self yourView frame size width - self yourView frame size width    2                                   0                                   maskingImage size width                                   maskingImage size height    maskingLayer setContents  id  maskingImage CGImage     self yourView layer setMask maskingLayer

User · Answer

view layer cornerRadius   25 view layer masksToBounds   true

User · Answer

A different approach than the one Ed Marty did    import  lt QuartzCore QuartzCore h gt    v layer setCornerRadius 25 0f    v layer setMasksToBounds YES     You need the setMasksToBounds for it to load all the objects from IB    i got a problem where my view got rounded  but did not have the objects from IB     this fixed it  D hope it helps

User · Answer

Do this programatically in obj c  UIView  view     UIView alloc  initWithFrame CGRectMake 20  50     200  200     view layer backgroundColor    UIColor whiteColor  CGColor  view layer cornerRadius   20 0  view layer frame   CGRectInset v layer frame  20  20     view layer shadowOffset   CGSizeMake 1  0   view layer shadowColor     UIColor blackColor  CGColor   view layer shadowRadius   5  view layer shadowOpacity    25   1    self view addSubview view     We Can Also do this from stoaryboard    layer cornerRadius  Number  5

User · Answer

You can also use the User Defined Runtime Attributes feature of interface builder to set the key path layer cornerRadius to a value   Make sure you include the QuartzCore library though   This trick also works for setting layer borderWidth however it will not work for layer borderColor as this expects a CGColor not a UIColor   You will not be able to see the effects in the storyboard because these parameters are evaluated at runtime

User · Answer

UIView  view     UIView alloc  initWithFrame CGRectMake 20  50  200  200     view layer backgroundColor    UIColor whiteColor  CGColor  view layer cornerRadius   20 0  view layer frame   CGRectInset v layer frame  20  20    view layer shadowOffset   CGSizeMake 1  0   view layer shadowColor     UIColor blackColor  CGColor   view layer shadowRadius   5  view layer shadowOpacity    25    self view addSubview view    view release

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Swift  Short answer   myView layer cornerRadius   8 myView layer masksToBounds   true     optional   Supplemental Answer  If you have come to this answer  you have probably already seen enough to solve your problem  I m adding this answer to give a bit more visual explanation for why things do what they do   If you start with a regular UIView it has square corners   let blueView   UIView   blueView frame   CGRect x  100  y  100  width  100  height  50  blueView backgroundColor   UIColor blueColor   view addSubview blueView      You can give it round corners by changing the cornerRadius property of the view s layer    blueView layer cornerRadius   8     Larger radius values give more rounded corners   blueView layer cornerRadius   25     and smaller values give less rounded corners   blueView layer cornerRadius   3     This might be enough to solve your problem right there  However  sometimes a view can have a subview or a sublayer that goes outside of the view s bounds  For example  if I were to add a subview like this  let mySubView   UIView   mySubView frame   CGRect x  20  y  20  width  100  height  100  mySubView backgroundColor   UIColor redColor   blueView addSubview mySubView    or if I were to add a sublayer like this  let mySubLayer   CALayer   mySubLayer frame   CGRect x  20  y  20  width  100  height  100  mySubLayer backgroundColor   UIColor redColor   CGColor blueView layer addSublayer mySubLayer    Then I would end up with     Now  if I don t want things hanging outside of the bounds  I can do this  blueView clipsToBounds   true   or this  blueView layer masksToBounds   true   which gives this result     Both clipsToBounds and masksToBounds are equivalent  It is just that the first is used with UIView and the second is used with CALayer    See also   How to add borders and shadow Bezier paths Transformations

User · Answer

set cornerRadious Property for round View  set masksToBounds Boolean Value for image will not still be drawn outside the corner radius boundary  view layer cornerRadius   5   view layer masksToBounds   YES

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Using UIView Extension   extension UIView        func addRoundedCornerToView targetView   UIView           UIView Corner Radius     targetView  layer cornerRadius   5 0      targetView  layer masksToBounds   true        UIView Set up boarder     targetView  layer borderColor   UIColor yellowColor   CGColor      targetView  layer borderWidth   3 0         UIView Drop shadow     targetView  layer shadowColor   UIColor darkGrayColor   CGColor      targetView  layer shadowOffset   CGSizeMake 2 0  2 0      targetView  layer shadowOpacity   1 0       Usage   override func viewWillAppear animated  Bool     sampleView addRoundedCornerToView statusBarView

User · Answer

Please import Quartzcore framework then you have to set setMaskToBounds to TRUE this the very important line   Then    yourView layer  setCornerRadius 5 0f

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