EditorUtility.DisplayCancelableProgressBar

描述

显示或更新含有 Cancel 按钮的进度条。

窗口标题将设置为 /title/，信息将设置为 /info/。 进度应设置为 0.0 和 1.0 之间的一个值，0 表示一点儿也没有完成，1.0 表示完成 100%。

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.

This function's return value indicates whether the user pressed the cancel button. You must stop the task that is in progress. After you display the progress bar, clear it using ClearProgressBar.

See Also: DisplayCancelableProgressBar, ClearProgressBar methods, Progress class.


编辑器中可取消的进度条。

using System.Threading;
using UnityEditor;
using UnityEngine;

// Shows a cancellable progress bar for the specified number of seconds.
public class EditorUtilityDisplayCancelableProgressBar : EditorWindow
{
    public float secs = 5f;
    [MenuItem("Examples/Progress Bar Usage")]
    static void Init()
    {
        var window = GetWindow(typeof(EditorUtilityDisplayCancelableProgressBar));
        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)
            {
                if (EditorUtility.DisplayCancelableProgressBar("Cancelable", "Doing some work...", t / secs))
                    break;
                // Normally, some computation happens here.
                // This example uses Sleep.
                Thread.Sleep((int)(step * 1000.0f));
            }
            EditorUtility.ClearProgressBar();
        }
    }
}