ProfilerModuleViewController.CreateView

返回

VisualElement 返回视图控制器的视图。VisualElement。

描述

创建视图控制器的视图。当 Unity 即将首次显示视图控制器的视图时，会自动调用该方法。

您必须重写该方法才能构建视图控制器的视图层级。为此，请从 UXML 文件 加载可视化树，或者按照示例代码所示直接在 C# 中构建视图。

using Unity.Profiling.Editor;
using UnityEditor;
using UnityEngine.UIElements;

public class SingleCounterViewController : ProfilerModuleViewController
{
    ProfilerCounterDescriptor m_Counter;
    Label m_CounterLabel;

    public SingleCounterViewController(ProfilerWindow profilerWindow, ProfilerCounterDescriptor counter) : base(profilerWindow)
    {
        m_Counter = counter;
    }

    protected override VisualElement CreateView()
    {
        // Create a simple view with a single label.
        var view = new VisualElement();
        m_CounterLabel = new Label();
        view.Add(m_CounterLabel);

        // Subscribe to Profiler window SelectedFrameIndexChanged event.
        ProfilerWindow.SelectedFrameIndexChanged += OnSelectedFrameIndexChanged;

        // Populate label with counter value in selected frame.
        ReloadData();

        return view;
    }

    protected override void Dispose(bool disposing)
    {
        if (!disposing)
            return;

        // Unsubscribe from Profiler window SelectedFrameIndexChanged event.
        ProfilerWindow.SelectedFrameIndexChanged -= OnSelectedFrameIndexChanged;

        base.Dispose(disposing);
    }

    void OnSelectedFrameIndexChanged(long selectedFrame)
    {
        // Update label with counter value in selected frame.
        ReloadData();
    }

    void ReloadData()
    {
        // Update label text with formatted counter value in selected frame.
        var selectedFrameIndexInt32 = System.Convert.ToInt32(ProfilerWindow.selectedFrameIndex);
        var formattedCounterValue = UnityEditorInternal.ProfilerDriver.GetFormattedCounterValue(selectedFrameIndexInt32, m_Counter.CategoryName, m_Counter.Name);
        m_CounterLabel.text = $"{m_Counter}: {formattedCounterValue}";
    }
}

其他资源：ProfilerWindow.SelectedFrameIndexChanged、ProfilerModule、ProfilerCounterDescriptor。