Change button background color using swift language

Question

I am new to the swift language  Can someone tell me how to change the background color of a button using the swift language

User · Answer

To change your background color of the botton use:

yourBtn.backgroundColor = UIColor.black

if you are using storyBoard make sure you have connected your storyBoard with your viewController and also that your items are linked.

if you don´t know how to do this check the next link:

How to connect ViewController.swift to ViewController in Storyboard?

User · Answer

Swift 3 Color With RGB btnLogin backgroundColor   UIColor init colorLiteralRed   100 255   green   150 255   blue   200 255   alpha  1   Using Native color btnLogin backgroundColor   UIColor darkGray

User · Answer

Swift 4      You can easily use hex code    self backgroundColor   UIColor hexString    ff259F6C    self layer shadowColor   UIColor hexString    08259F6C   cgColor      Extension for hex color code   extension UIColor       convenience init hexString  String  alpha  CGFloat   1 0            let hexString  String   hexString trimmingCharacters in  CharacterSet whitespacesAndNewlines          let scanner   Scanner string  hexString          if  hexString hasPrefix                     scanner scanLocation   1                   var color  UInt32   0         scanner scanHexInt32  amp color          let mask   0x000000FF         let r   Int color  gt  gt  16   amp  mask         let g   Int color  gt  gt  8   amp  mask         let b   Int color   amp  mask         let red     CGFloat r    255 0         let green   CGFloat g    255 0         let blue    CGFloat b    255 0         self init red red  green green  blue blue  alpha alpha            func toHexString   - gt  String           var r CGFloat   0         var g CGFloat   0         var b CGFloat   0         var a CGFloat   0         getRed  amp r  green   amp g  blue   amp b  alpha   amp a          let rgb Int    Int  r 255  lt  lt 16    Int  g 255  lt  lt 8    Int  b 255  lt  lt 0         return String format    06x   rgb

User · Answer

U can also play around the tintcolor and button image to indirectly change the color

User · Answer

Update for xcode 8 and swift 3  specify common colors like    button backgroundColor   UIColor blue   the Color   has been removed

User · Answer

Try this  you need to add the 255 like so   button backgroundColor   UIColor red  102 255  green  250 255  blue  51 255  alpha  0 5

User · Answer

Swift-5 update    let tempBtn  UIButton   UIButton frame  CGRect x  5  y  20  width  40  height  40          tempBtn backgroundColor   UIColor red

User · Answer

You can set the background color of a button using the getRed function  Let s assume you have    A UIButton called button  and You want to change button s background color to some known RBG value   Then  place the following code in the function where you want to change the background color of your UIButton  var r CGFloat   0 var g CGFloat   0 var b CGFloat   0 var a CGFloat   0     This will be some red-ish color let color   UIColor red  200 0 255 0  green  16 0 255 0  blue  46 0 255 0  alpha  1 0    if color getRed  amp r  green   amp g  blue   amp b  alpha   amp a       button backgroundColor   UIColor red  r  green  g  blue  b  alpha  a

User · Answer

button backgroundColor   UIColor blue   Or any other color  red  green  yellow  etc   Another option is RGBA color    button backgroundColor   UIColor red  0 4  green  1 0  blue  0 2  alpha  0 5

User · Answer

After you connect the UIButton that you want to change its background as an OUtlet to your ViewController swift file you can use the following    yourUIButton backgroundColor   UIColor blue

User · Answer

If you want to set  backgroundColor  of button programmatically then this code will surly help you   Swift 3 and Swift 4  self yourButton backgroundColor   UIColor red   Swift 2 3 or lower  self yourButton backgroundColor   UIColor redColor     Using RGB  self yourButton backgroundColor   UIColor red  102 255  green  250 255  blue  51 255  alpha  0 5    or you can use float values  button backgroundColor   UIColor red  0 4  green  1 0  blue  0 2  alpha  0 5

[ios] Change button background color using swift language

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