Remove UIPickerView Borders

Question

The default "UIPickerView" has a thin gray line at the top and bottom that I want to remove, but I can't find out how to do that.

Is there a property somewhere that I can set to clear?

Answer 1

You have to subclass UIPickerView, as such:

class MyPickerView: UIPickerView {

    override func layoutSubviews() {
        super.layoutSubviews()

        self.layer.borderWidth = 0 // Main view rounded border

        // Component borders
        self.subviews.forEach {
            $0.layer.borderWidth = 0
            $0.isHidden = $0.frame.height <= 1.0
        }
    }

}