CODEWITHSUNDEEP
swiftios8xcode6
Z-Tech
Z-Tech

Reputation: 4470

UIView background color in Swift

Is there a way to set the UIView background color with Swift?

I know that in Objective-C, you would use self.view.backgroundColor = [UIColor redColor];, but that does not work the same way in Swift. I have looked around and because Swift is only about a week old, I cannot find an answer.

Does anyone have any suggestions?

Upvotes: 61

Views: 176258

Answers (9)

Grovnyk
Grovnyk

Reputation: 41

Since the Xcode 13, the shortcut ColorLiteral does not work anymore.

Now, you have to use this shortcut:

let color = #colorLiteral()

The color display appears after writing the first "(" and tapping the symbol

enter image description here

Upvotes: 0

marcinbogiel
marcinbogiel

Reputation: 29

If you want to set your custom RGB color try this:

self.view.backgroundColor = UIColor(red: 20/255.0, green: 106/255.0, blue: 93/255.0, alpha: 1)

Don't forget to keep /255.0 for every color

Upvotes: 2

Jaywant Khedkar
Jaywant Khedkar

Reputation: 6121

Try This, It worked like a charm! for me,

The simplest way to add backgroundColor programmatically by using ColorLiteral.

You need to add the property ColorLiteral, Xcode will prompt you with a whole list of colors in which you can choose any color. The advantage of doing this is we use lesser code, add HEX values or RGB. You will also get the recently used colors from the storyboard.

Follow steps ,

1) Add below line of code in viewDidLoad() ,

self.view.backgroundColor = ColorLiteral

and clicked on enter button .

2) Display square box next to =

enter image description here

3) When Clicked on Square Box Xcode will prompt you with a whole list of colors which you can choose any colors also you can set HEX values or RGB

enter image description here

4) You can successfully set the colors .

enter image description here

Hope this will help some one to set backgroundColor in different ways.

Upvotes: 27

person13
person13

Reputation: 171

The response by @Miknash and @wolfgang gutierrez barrera was helpful to me. Only difference was I had to add rgbValue: to the function call.

UIColorFromHex(rgbValue: 0xA6D632,alpha: 1 ) like so

Upvotes: 1

BetterTeng
BetterTeng

Reputation: 479

In Swift 4, just as simple as Swift 3:

self.view.backgroundColor = UIColor.brown

Upvotes: 4

Turtle0001
Turtle0001

Reputation: 81

You can use this extension as an alternative if you're dealing with RGB value.

extension UIColor {
    static func rgb(red: CGFloat, green: CGFloat, blue: CGFloat) -> UIColor {
        return UIColor(red: red/255, green: green/255, blue: blue/255, alpha: 1)
      }
    }

Upvotes: 7

wolfgang gutierrez barrera
wolfgang gutierrez barrera

Reputation: 211

I see that this question is solved, but, I want to add some information than can help someone.

if you want use hex to set background color, I found this function and work:

func UIColorFromHex(rgbValue:UInt32, alpha:Double=1.0)->UIColor {
    let red = CGFloat((rgbValue & 0xFF0000) >> 16)/256.0
    let green = CGFloat((rgbValue & 0xFF00) >> 8)/256.0
    let blue = CGFloat(rgbValue & 0xFF)/256.0

    return UIColor(red:red, green:green, blue:blue, alpha:CGFloat(alpha))
}

I use this function as follows:

view.backgroundColor = UIColorFromHex(0x323232,alpha: 1)

some times you must use self:

self.view.backgroundColor = UIColorFromHex(0x323232,alpha: 1)

Well that was it, I hope it helps someone .

sorry for my bad english.

this work on iOS 7.1+

Upvotes: 19

Mono.WTF
Mono.WTF

Reputation: 1607

You can use the line below which goes into a closure (viewDidLoad, didLayOutSubViews, etc):

self.view.backgroundColor = .redColor()

EDIT Swift 3:

view.backgroundColor = .red

Upvotes: 16

Jiaaro
Jiaaro

Reputation: 76918

self.view.backgroundColor = UIColor.redColor()

In Swift 3:

self.view.backgroundColor = UIColor.red

Upvotes: 135

Related Questions