Medium blogpost snippet

SettingsViewController.swift

private func setUp(settingSwitch: UISwitch, with toggle: Toggle) {
    let (value, isBusy) = toggle.manage(change: settingSwitch.rx.isOn.changed.asObservable())

    let initialValue = value
        .filter { $0.isInitial }
        .map { $0.value }
        .flatMap { $0.map(Driver.just) ?? Driver.empty() } // .unwrap() if using `RxSwiftExt`

    let fallbackValue = value
        .filter { $0.isFallback }
        .map { $0.value }
        .flatMap { $0.map(Driver.just) ?? Driver.empty() } // .unwrap() if using `RxSwiftExt`

    let switchValue = Driver.merge(initialValue, fallbackValue)

    switchValue
        .drive(settingSwitch.rx.isOn)
        .disposed(by: disposeBag)

    // ...
}