How to remove that blur effect in popupbar?

[CivelXu]

I create a CustomBarView extend LNPopupCustomBarViewController class, I want remove hairline、blur effect any views inherit form super.

How can I achieve it

I find related issues from https://github.com/LeoNatan/LNPopupController/issues/294

popupBar.isTranslucent = false
popupBar.backgroundColor = .clear

Use this api does not work

[CivelXu]

        containingPopupBar.subviews.forEach {
            if $0.isKind(of: UIVisualEffectView.self) {
                $0.isHidden = true
            }
        }

I can do it this way, but it's not very friendly.

[LeoNatan]

What happens if you use the new appearance API to configure the bar appearance to be opaque and set the background color in the appearance to clear?

https://github.com/LeoNatan/LNPopupController/blob/master/LNPopupController/LNPopupController/LNPopupBarAppearance.h

[CivelXu]

I try to used this api in demo project in ManualLayoutCustomBarViewController.swift viewDidLoad

        let appearance = LNPopupBarAppearance()
        appearance.configureWithTransparentBackground()
        containingPopupBar.standardAppearance = appearance

I expect there will be a transparent bar， but nothing happened.

[LeoNatan]

I just opened ManualLayoutCustomBarViewController.swift and added the following code to viewDidLoad():

override func viewDidLoad() {
    super.viewDidLoad()

    let appearance = LNPopupBarAppearance()
        appearance.configureWithTransparentBackground()
        containingPopupBar.standardAppearance = appearance

    centeredButton.setTitle("Centered", for: .normal)
...

And it works as expected:

Notice the labels at the bottom sit on top of a transparent bar.

[LeoNatan]

Also behaves correctly in the second example: