Slint Kit Documentation

Choices and values

KitSlider

Continuous slider projecting a domain value onto a normalized position.

Continuous slider projecting a domain value onto a normalized position.
Native screenshot of the same example, rendered with Skia.

Supply position from 0 to 1 and a readable value-label. Convert position-requested(float) and navigate(NavigationStep) into requests on your domain type.

gesture-started, committed and cancelled delimit a reversible interaction. The view bounds rendering, while steps, rounding and accepted values belong to the controller.

View source ↗

Complete example

This complete Slint file is a visual composition used to produce the screenshot above. Internal strings without a label property retain the kit’s default language; system dialogs follow the host platform. Projected state and callbacks requesting a decision need host wiring; the standalone fixture does not supply that controller. Set up the Rust project, then see the typed controller application for working editing, validation and selection.

// SPDX-License-Identifier: GPL-3.0-or-later
import { KitSlider, KitTheme, KitThemes } from "@kit/kit.slint";

export component Example inherits Window {
    title: "KitSlider example";
    preferred-width: 420px;
    preferred-height: 180px;
    max-width: 100000px;
    max-height: 100000px;
    background: root.theme.canvas;
    in-out property <KitTheme> theme: KitThemes.light;
    in-out property <string> status;
    VerticalLayout {
        padding: 24px; spacing: 16px; alignment: start;
        Text { text: "Slider"; color: root.theme.text-primary; font-size: 20px * root.theme.text-scale; font-weight: 600; }
        Text { text: "Volume · 65%"; color: root.theme.text-primary; font-size: 14px * root.theme.text-scale; wrap: word-wrap; } KitSlider { theme: root.theme; label: "Volume"; position: 0.65; value-label: "65%"; position-requested(value) => { root.status = "Position requested"; } }
        if root.status != "": Text { text: root.status; color: root.theme.text-secondary; font-size: 12px * root.theme.text-scale; wrap: word-wrap; }
    }
}

Download this example

Public API

Inherits Rectangle. The declarations below come from the component source. Parent properties remain available; see the controller guide for state management.

Properties

Name Type Direction
theme KitTheme in
access FieldAccess in
position float in
label string in
value-label string in

Types and variants

Names below use Slint syntax. Shared Rust domain types live in slint_kit; presentation enums come from the Rust types generated by Slint.

Type Declaration
enum FieldAccess editable, read-only, disabled
enum NavigationStep next, previous, first, last, page-next, page-previous

Callbacks

Functions

See also