HierarchyFrameDataView.GetItemColumnDataAsDouble

参数

返回

double 双精度值形式的对应列的值。

描述

返回与列关联的层级视图项值的双精度值表示形式。

Use to retrieve value with high precision for columns such as HierarchyFrameDataView.columnStartTime which represents sample start time in milliseconds.

using System.Collections.Generic;
using UnityEditor;
using UnityEditor.Profiling;
using UnityEditorInternal;

class Example
{
    static List<int> childrenIdCache = new List<int>();

    static int FindChildItemByFunctionName(HierarchyFrameDataView frameData, int parentId, string functionName)
    {
        frameData.GetItemChildren(parentId, childrenIdCache);
        foreach (var childId in childrenIdCache)
        {
            var name = frameData.GetItemName(childId);
            if (name == functionName)
                return childId;
        }

        return HierarchyFrameDataView.invalidSampleId;
    }

    static double GetSampleStartTime(string sampleName)
    {
        using (var frameData = ProfilerDriver.GetHierarchyFrameDataView(ProfilerDriver.lastFrameIndex, 0, HierarchyFrameDataView.ViewModes.Default, HierarchyFrameDataView.columnDontSort, false))
        {
            var sampleId = FindChildItemByFunctionName(frameData, frameData.GetRootItemID(), sampleName);
            if (HierarchyFrameDataView.invalidSampleId == sampleId)
                return 0;

            double startTime = frameData.GetItemColumnDataAsDouble(sampleId, HierarchyFrameDataView.columnStartTime);
            return startTime;
        }
    }
}

Additional resources: HierarchyFrameDataView.GetItemColumnData, HierarchyFrameDataView.GetItemColumnDataAsFloat.