EditorUtility.DisplayProgressBar

Description

Displays or updates a progress bar.

The window title will be set to title and the info will be set to info. Progress should be set to a value between 0.0 and 1.0, where 0 means nothing done and 1.0 means 100% completed.

This is useful when you perform a long blocking operation in an Editor script, and want to notify the user about the progress. Use this method for long operations that make the editor non-responsive. For long operations that happen in the background, use the Progress class instead.

After you display the progress bar, clear it using ClearProgressBar.

Additional resources: DisplayCancelableProgressBar, ClearProgressBar methods, Progress class.


Progress bar in the Editor.

using System.Threading;
using UnityEditor;
using UnityEngine;

// Shows a progress bar for the specified number of seconds.
public class EditorUtilityDisplayProgressBar : EditorWindow
{
    public float secs = 5f;
    [MenuItem("Examples/Progress Bar Usage")]
    static void Init()
    {
        var window = GetWindow(typeof(EditorUtilityDisplayProgressBar));
        window.Show();
    }

    void OnGUI()
    {
        secs = EditorGUILayout.Slider("Time to wait:", secs, 1.0f, 20.0f);
        if (GUILayout.Button("Display bar"))
        {
            var step = 0.1f;
            for (float t = 0; t < secs; t += step)
            {
                EditorUtility.DisplayProgressBar("Simple Progress Bar", "Doing some work...", t / secs);
                // Normally, some computation happens here.
                // This example uses Sleep.
                Thread.Sleep((int)(step * 1000.0f));
            }
            EditorUtility.ClearProgressBar();
        }
    }
}