3-color view with the colors of the netherlands flag in swift

To create a 3-color view with the colors of the Netherlands flag in swift, you can use a simple UIView and set its background color to a combination of red, white, and blue. Here's an example code snippet you can try:

main.swift
let flagView = UIView(frame: CGRect(x: 0, y: 0, width: 100, height: 100))
flagView.backgroundColor = UIColor(red: 214/255, green: 47/255, blue: 39/255, alpha: 1.0)
let whiteView = UIView(frame: CGRect(x: 0, y: 33, width: 100, height: 33))
whiteView.backgroundColor = UIColor.white
let blueView = UIView(frame: CGRect(x: 0, y: 67, width: 100, height: 33))
blueView.backgroundColor = UIColor(red: 33/255, green: 70/255, blue: 139/255, alpha: 1.0)
flagView.addSubview(whiteView)
flagView.addSubview(blueView)
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This code creates a 100x100px red view, and adds two subviews on top of it. The first subview is a white view that covers the top third of the flag, and the second subview is a blue view that covers the bottom third of the flag.

Note that the RGB values used in this example are based on the official colors of the Netherlands flag, but you can substitute these with other colors if desired.