Slider

Slider selects a numeric value between Minimum and Maximum. The defaults are zero and one.

var volume = new Slider
{
    Minimum = 0,
    Maximum = 100,
    MinIcon = ImageSource.Symbol("speaker.fill"),
    MaxIcon = ImageSource.Symbol("speaker.wave.3.fill"),
    Continuous = true,
    Value = Bind(vm => vm.Volume)
        .TwoWay((vm, val) => vm.Volume = val)
};

With Continuous enabled, the binding and ValueChanged update throughout the drag. Set it to false for expensive work that should run only when the thumb is released.

Steps and appearance

Step snaps the native slider to increments on iOS 26 and later. A value of zero remains continuous. If stepped behavior is essential on older releases, round and validate the bound value in the view model rather than assuming the control will snap.

TrackColor, EmptyTrackColor, and ThumbColor customize the filled track, remaining track, and thumb. MinIcon and MaxIcon accept local symbol, bundle, or data image sources:

new Slider
{
    Minimum = 1,
    Maximum = 5,
    Step = 1,
    Value = 3,
    TrackColor = Colors.Blue
};

Show the current number in a label when precision matters. A slider alone communicates relative position better than an exact value.

Use Stepper when every discrete increment matters and people should move one step at a time.