FUISliderFormCell

@IBDesignable
open class FUISliderFormCell : FUIInlineValidationTableViewCell, FUIPropertyFormCell

A customized UITableViewCell, which contains a UILabel, a UITextField and a UISlider. It allows users to select a single value from a continuous range of values.

FUISliderFormCell

The developer should set the following properties on the cell, in their implementation of UITableViewDataSource cellForRow(at:) function:

  • keyName: The key name of the property
  • value: The value of the property, as Float
  • minimumValue: The minimum value of the selection range.
  • maximumValue: The maximum value of the selection range.

And an onChangeHandler:

  • onChangeHandler: a handler closure, which is invoked on changes to the value.

Optionally, the developer may set:

  • unit: The unit of value. Default is mi.
  • isEditable: Indicates if the cell’s value may be modified. Defaults to true.

Color setting:

Setting text color of filter buttons for a state using setTintColor(_:for:) api. Currently .disabled and .normal are supported.

cell.setTintColor(UIColor.red, for: .normal)

The following is an example of usage in an application UITableViewController:

Important

The app’s UITableViewController must subclass FUIFormTableViewController 
override func viewDidLoad() {
    super.viewDidLoad()
    self.tableView.register(FUISliderFormCell, forCellReuseIdentifier: FUISliderFormCell.reuseIdentifier)
    // ...
}

override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {

    let cell = tableView.dequeueReusableCell(withIdentifier: FUISliderFormCell.reuseIdentifier, for: indexPath) as! FUISliderFormCell
    cell.keyName = "Distance"
    cell.minimumValue = 0
    cell.maximumValue = 30
    cell.value = myObject.distance

    // MARK:  implement an onChangeHandler
    cell.onChangeHandler = { [weak self] newValue in
        self.myObject.distance = newValue
    }

    return cell
}

Theming

Supported style classes

fdlFUISliderFormCell
fdlFUISliderFormCell_keyLabel
fdlFUISliderFormCell_valueTextField

  • The default cell reuse identifier.

    Declaration

    Swift

    open class var reuseIdentifier: String { get }

  • The value type is Float.

    Declaration

    Swift

    public typealias ValueType = Float

  • The value of the property.

    Declaration

    Swift

    @IBInspectable
public var value: Float { get set }

  • Implementation of change handler. Is invoked on changes to the value property.

    Declaration

    Swift

    public var onChangeHandler: ((Float) -> Void)?

  • Indicate whether the user can change the value for slider. It is set to true by default.

    Declaration

    Swift

    public var isEditable: Bool { get set }

  • Indicate whether the slider is enabled. isEnabled and isEditable are in sync.

    Declaration

    Swift

    override public var isEnabled: Bool { get set }

  • The key name of the property.

    Declaration

    Swift

    @IBInspectable
public var keyName: String? { get set }

  • The unit of measure for value. Default value is UnitLength.miles.

    Declaration

    Swift

    public var unit: Unit { get set }

  • The formatter to format the presentation of unit.

    Declaration

    Swift

    public let formatter: MeasurementFormatter

  • The UILabel holds the key name string.

    Declaration

    Swift

    @IBOutlet
public private(set) weak var keyLabel: UILabel!

  • The UITextField holds the value string.

    Declaration

    Swift

    @IBOutlet
public private(set) weak var valueTextField: UITextField!

  • The UISlider of the cell.

    Declaration

    Swift

    @IBOutlet
public private(set) weak var slider: UISlider!

  • The maximum value of the slider.

    Declaration

    Swift

    public var maximumValue: Float { get set }

  • The minimum value of the slider.

    Declaration

    Swift

    public var minimumValue: Float { get set }