GUILayout.BeginScrollView 开始滚动视图

static function BeginScrollView (scrollPosition : Vector2, params options : GUILayoutOption[]) : Vector2
static function BeginScrollView (scrollPosition : Vector2, alwaysShowHorizontal : bool, alwaysShowVertical : bool, params options : GUILayoutOption[]) : Vector2
static function BeginScrollView (scrollPosition : Vector2, horizontalScrollbar : GUIStyle, verticalScrollbar : GUIStyle, params options : GUILayoutOption[]) : Vector2
static function BeginScrollView (scrollPosition : Vector2, style : GUIStyle) : Vector2
static function BeginScrollView (scrollPosition : Vector2, alwaysShowHorizontal : bool, alwaysShowVertical : bool, horizontalScrollbar : GUIStyle, verticalScrollbar : GUIStyle, params options : GUILayoutOption[]) : Vector2
static function BeginScrollView (scrollPosition : Vector2, alwaysShowHorizontal : bool, alwaysShowVertical : bool, horizontalScrollbar : GUIStyle, verticalScrollbar : GUIStyle, background : GUIStyle, params options : GUILayoutOption[]) : Vector2

Parameters参数

• scrollPosition
  The position to use display.
  用于显示的滚动位置。
• alwayShowHorizontal
  Optional parameter to always show the horizontal scrollbar. If false or left out, it is only shown when the content inside the ScrollView is wider than the scrollview itself.
  总是显示水平滚动条的可选参数。如果为false或不设置，仅在滚动视图内的内容比自身的滚动视图宽时显示水平滚动条。
• alwayShowVertical
  Optional parameter to always show the vertical scrollbar. If false or left out, it is only shown when content inside the ScrollView is taller than the scrollview itself.
  总是显示垂直滚动条的可选参数。如果为false或不设置，仅在滚动视图内的内容比自身的滚动视图高时显示垂直滚动条。
• horizontalScrollbar
  Optional GUIStyle to use for the horizontal scrollbar. If left out, the horizontalScrollbar style from the current GUISkin is used.
  用于水平滚动条的可选GUIStyle样式。如果不设置，该水平滚动条样式使用当前的GUISkin皮肤。
• verticalScrollbar
  Optional GUIStyle to use for the vertical scrollbar. If left out, the verticalScrollbar style from the current GUISkin is used.
  用于垂直滚动条的可选GUIStyle样式。如果不设置，该垂直滚动条样式使用当前的GUISkin皮肤。

Vector2 - The modified scrollPosition. Feed this back into the variable you pass in, as shown in the example.

返回Vector2类型，已修改的滚动位置。回传给这个变量，看下面的例子：

Description描述

Begin an automatically laid out scrollview.

开始一个自动布局滚动视图。

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.

自动布局滚动视图将使它里面的全部内容正常显示出来。如果内容大约滚动视图，滚动条将显示出来。调用BeginScrollView必须匹配EndScrollView来结束。

Scroll View in the Game View..
在游戏视图中的滚动视图。

using UnityEngine;
using System.Collections;

public class example : MonoBehaviour {
	public Vector2 scrollPosition;
	public string longString = "This is a long-ish string";
	void OnGUI() {
		scrollPosition = GUILayout.BeginScrollView(scrollPosition, GUILayout.Width(100), GUILayout.Height(100));
		GUILayout.Label(longString);
		if (GUILayout.Button("Clear"))
			longString = "";

		GUILayout.EndScrollView();
		if (GUILayout.Button("Add More Text"))
			longString += "\nHere is another line";

	}
}

// The variable to control where the scrollview 'looks' into its child elements.
//这个变量控制滚动视图看它里面的子元素，也就是滚动视图内的元素
var scrollPosition : Vector2;

// The string to display inside the scrollview. 2 buttons below add & clear this string.
//显示在滚动视图内的一个字符串，它羡慕两个按钮，添加和清除这个字符串
var longString = "This is a long-ish string";

function 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.
	//开始一个滚动视图，所有矩形的自动计算，将使用的任何可用的屏幕空间，并确保内容正确地流动。
	//宽高后面的2个参数是内容超过这个范围强制出现滚动条
	scrollPosition = GUILayout.BeginScrollView (
	scrollPosition, GUILayout.Width (100), GUILayout.Height (100));

	// We just add a single label to go inside the scroll view. Note how the
	// scrollbars will work correctly with wordwrap.
	//我们在滚动视图内，添加一个简单标签。注意滚动条如何与文字换行正确的工作。
	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
	//添加一个按钮来清除字符串，这是在滚动视图区域呢，因此它也将被滚动
	//注意注意按钮如何变短为垂直滚动条留出空间
	if (GUILayout.Button ("Clear"))
	longString = "";

	// End the scrollview we began above.
	//结束滚动视图
	GUILayout.EndScrollView ();

	// Now we add a button outside the scrollview - this will be shown below
	// the scrolling area.
	//现在我们在滚动视图外面添加一个按钮，它将显示在滚动区域的下面。
	if (GUILayout.Button ("Add More Text"))
	longString += "\nHere is another line";
}