Question

class in UnityEngine

Description 描述

Disposable helper class for managing BeginScrollView / EndScrollView.

管理BeginScrollView / EndScrollView的可支配助手类。

Automatically laid out scrollviews will take whatever content you have inside them and display normally. If it doesn't fit, scrollbars will appear. A call to BeginScrollView must always be matched with a call to EndScrollView.

自动布局滚动范围将会获取它们内部的内容并正常显示。如果不合适，滚动条将会出现。BeginScrollView必须总是匹配EndScrollView。

JavaScript:

#pragma strict
public var scrollPosition: Vector2;
public var longString: String = "This is a long-ish string";
function OnGUI() {
	var scrollViewScope: var = new ScrollViewScope(scrollPosition, GUILayout.Width(100), GUILayout.Height(100));
	{
		scrollPosition = scrollViewScope.scrollPosition;
		// scrollbars will work correctly with wordwrap.
		GUILayout.Label(longString);
		// for the vertical scrollbar
		if (GUILayout.Button("Clear"))
			longString = "";
	}
	// the scrolling area.
	if (GUILayout.Button("Add More Text"))
		longString += "\nHere is another line";
}

C#:

using UnityEngine;
using UnityEditor;
public class ExampleClass : MonoBehaviour {
	// The variable to control where the scrollview 'looks' into its child elements.
	public Vector2 scrollPosition;
 
	// The string to display inside the scrollview. 2 buttons below add & clear this string.
	public string longString = "This is a long-ish string";
 
	void OnGUI() {
		// Begin a scroll view. All rects are calculated automatically - 
		// it will use up any available screen space and make sure contents flow correctly.
		// This is kept small with the last two parameters to force scrollbars to appear.
		using (var scrollViewScope = new ScrollViewScope(scrollPosition, GUILayout.Width(100), GUILayout.Height(100))) {
			scrollPosition = scrollViewScope.scrollPosition;
 
			// We just add a single label to go inside the scroll view. Note how the
			// scrollbars will work correctly with wordwrap.
			GUILayout.Label(longString);
 
			// Add a button to clear the string. This is inside the scroll area, so it
			// will be scrolled as well. Note how the button becomes narrower to make room
			// for the vertical scrollbar
			if (GUILayout.Button("Clear"))
				longString = "";
		}
 
		// Now we add a button outside the scrollview - this will be shown below
		// the scrolling area.
		if (GUILayout.Button("Add More Text"))
			longString += "\nHere is another line";
 
	}
}

Variables

handleScrollWheel	Whether this ScrollView should handle scroll wheel events. (default: true). 是否该滚动视图运用滚轮事件。(默认为true)。
scrollPosition	The modified scrollPosition. Feed this back into the variable you pass in, as shown in the example. 修改滚动位置。输入该返回到你传递的变量，如例子中所显示的。

Constructors

GUILayout.ScrollViewScope

Create a new ScrollViewScope and begin the corresponding ScrollView. 创建新的滚动范围并形成相对应的滚动视图。