The Spinner informs the user about the status of an on-going operation, such as loading data from the network. It provides the same properties as ProgressIndicator but differs in shape.


  • indeterminate: (in bool): Set to true if the progress of the operation cannot be determined by value (default value: false).

  • progress (in float): Percentage of completion, as value between 0 and 1. Values less than 0 or greater than 1 are capped.


import { Spinner } from "std-widgets.slint";
export component Example inherits Window {
    width: 200px;
    height: 25px;
    Spinner {
        progress: 50%;