Here is how to set a background color in UIimage using Swift Programming Language while developing app for iOS in Xcode. With addition to this here is list of UIColor predefined / preset component values in Xcode that you can use using dot operator

I will explain below how to set background color to UIimage while developing app for iOS.

 

Assumptions: I assume that you have already created Xcode project for iOS app development & you are using storyboards for developing the same. Also you have dragged UIimage View to your current ViewController.

 
Step 01: Now connect your UIimage View to your ViewController.swift file with code something like this

 

@IBOutlet weak var selectImage: UIImageView!

 
Step 02: Now in your desired function set your UIimageā€™s background color with following code using dot operator

 

    func functionName() {
        
        self.selectImage.backgroundColor = UIColor(red: 0/255, green: 0/255, blue: 0/255, alpha: 1.0) // Set background color black using RGB values
        self.selectImage.backgroundColor = UIColor.blackColor() // Set background color black using Xcode predefined values
	
    }

 
With addition to this code following is list UIColor predefined / preset component values in Xcode that you can use using dot operator for your OSX or iOS app development project:

 

    func functionName() {

        // Set background color black using Xcode predefined values
        self.selectImage.backgroundColor = UIColor.blackColor()

        // Set background dark gray using Xcode predefined values
        self.selectImage.backgroundColor = UIColor.darkGrayColor()

        // Set background color light gray using Xcode predefined values
        self.selectImage.backgroundColor = UIColor.lightGrayColor()

        // Set background color white using Xcode predefined values
        self.selectImage.backgroundColor = UIColor.whiteColor()

        // Set background color gray using Xcode predefined values
        self.selectImage.backgroundColor = UIColor.grayColor()

        // Set background color red using Xcode predefined values
        self.selectImage.backgroundColor = UIColor.redColor()

        // Set background color green using Xcode predefined values
        self.selectImage.backgroundColor = UIColor.greenColor()

        // Set background color blue using Xcode predefined values
        self.selectImage.backgroundColor = UIColor.blueColor()

        // Set background color cyan using Xcode predefined values
        self.selectImage.backgroundColor = UIColor.cyanColor()

        // Set background color yellow using Xcode predefined values
        self.selectImage.backgroundColor = UIColor.yellowColor()

        // Set background color magenta using Xcode predefined values
        self.selectImage.backgroundColor = UIColor.magentaColor()

        // Set background color orange using Xcode predefined values
        self.selectImage.backgroundColor = UIColor.orangeColor()

        // Set background color purple using Xcode predefined values
        self.selectImage.backgroundColor = UIColor.purpleColor()

        // Set background color brown using Xcode predefined values
        self.selectImage.backgroundColor = UIColor.brownColor()

        // Set background color clear using Xcode predefined values
        self.selectImage.backgroundColor = UIColor.clearColor()
	
    }

 

Further reading: UIColor Class Reference Guide available on Apple Developer Portal

 
Hope it helps,

 
Thanks & Regards
Mandar Apte

Mandar Apte

This website contains a design articles blog by Mandar Apte. He writes and shares his iOS development, graphic, web, & animation film design experience through articles. Mandar is Mumbai based multi-disciplinary designer with expertise in UI, UX, Logo, Symbol, and Brand Identity design. He is an alumnus of Sir J. J. Institute of Applied Art, Mumbai. He currently runs his studio in the heart of the city of Mumbai.

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