ScrollViewScope

描述

用于管理 BeginScrollView/EndScrollView 的可处置的 Helper 类。

BeginScrollView 在构造时调用，EndScrollView 在处置实例时调用。 使用放置在其侧面的滚动条，滚动视图能够在屏幕上的一个较小区域内显示更大的区域。

using UnityEngine;

public class ExampleClass : MonoBehaviour
{
    // The position of the scrolling viewport
    public Vector2 scrollPosition = Vector2.zero;
    void OnGUI()
    {
        // An absolute-positioned example: We make a scrollview that has a really large client
        // rect and put it in a small rect on the screen.
        using (var scrollScope = new GUI.ScrollViewScope(new Rect(10, 300, 100, 100), scrollPosition, new Rect(0, 0, 220, 200)))
        {
            scrollPosition = scrollScope.scrollPosition;

            // Make four buttons - one in each corner. The coordinate system is defined
            // by the last parameter to the ScrollScope constructor.
            GUI.Button(new Rect(0, 0, 100, 20), "Top-left");
            GUI.Button(new Rect(120, 0, 100, 20), "Top-right");
            GUI.Button(new Rect(0, 180, 100, 20), "Bottom-left");
            GUI.Button(new Rect(120, 180, 100, 20), "Bottom-right");
        }
        // Now the scroll view is ended.
    }
}

变量

构造函数