Tabbar with mutliselection and animation

    @objc private func selection(button: UIButton) {

        nearbyBut.setTitleColor(#colorLiteral(red: 0.5960784314, green: 0.5960784314, blue: 0.5960784314, alpha: 1), for: .normal)
        nearbyBut.imageView?.tintColor = #colorLiteral(red: 0.5960784314, green: 0.5960784314, blue: 0.5960784314, alpha: 1)

        popularBut.setTitleColor(#colorLiteral(red: 0.5960784314, green: 0.5960784314, blue: 0.5960784314, alpha: 1), for: .normal)
        popularBut.imageView?.tintColor = #colorLiteral(red: 0.5960784314, green: 0.5960784314, blue: 0.5960784314, alpha: 1)

        onlineBut.setTitleColor(#colorLiteral(red: 0.5960784314, green: 0.5960784314, blue: 0.5960784314, alpha: 1), for: .normal)
        onlineBut.imageView?.tintColor = #colorLiteral(red: 0.5960784314, green: 0.5960784314, blue: 0.5960784314, alpha: 1)

        tableTitle.fadeTransition(0.5)

        switch button {
        case nearbyBut:
            currentList = .nearby
            nearbyBut.setTitleColor(.blueColor, for: .normal)
            nearbyBut.imageView?.tintColor = .blueColor
            tableTitle.text = "Nearby Tutor"
        case popularBut:
            currentList = .popular
            popularBut.setTitleColor(.blueColor, for: .normal)
            popularBut.imageView?.tintColor = .blueColor
            tableTitle.text = "Pupular Tutor"
        case onlineBut:
            currentList = .all
            onlineBut.setTitleColor(.blueColor, for: .normal)
            onlineBut.imageView?.tintColor = .blueColor
            tableTitle.text = "All Tutor"
        default:
            debugPrint("default!")
        }

        changeSelection(selected: currentList)
        UIView.transition(with: tutorTable, duration: 0.8, options: .transitionCrossDissolve, animations: {self.tutorTable.reloadData()}, completion: nil)
    }

    private func changeSelection(selected: TutorSelection) {

        indicatorCenter.isActive = false
        indicatorTrailing.isActive = false
        indicatorLeading.isActive = false

        switch selected {
        case .all:
            indicatorLeading.isActive = true
        case .nearby:
            indicatorCenter.isActive = true
        case .popular:
            indicatorTrailing.isActive = true
        }

        UIView.animate(withDuration: 0.3, delay: 0.0, options: .curveLinear) {
            self.view.layoutIfNeeded()
        }
    }