前两篇分别讲解了创建菜单**https://www.cnblogs.com/xiaoyulong/p/10115053.html和创建窗口https://www.cnblogs.com/xiaoyulong/p/10120565.html**
这一篇我们讲解使用 GUI 来绘制我们的窗口，使窗口内容更丰富、美观
绘制窗口我们一般会使用下面四个类：GUI、GUILayout、EditorGUI、EditorGUILayout。
这四个类大同小异，基本上没什么差别，和我们经常使用的 UGUI 和 NGUI 相比，UGUI 和 NGUI 有图形化的操作，而这四个类是纯代码操作。
GUI、EditorGUI 和 GUILayout、EditorGUILayout**** 的区别是：前者是固定布局，布局需要我们写代码控制，后者是自动布局。
GUI、GUILayout 和 EditorGUI、EditorGUILayout 的区别是：前者更多的用在平常调试中，后者在编辑器中使用。前者也可以使用在编辑器中。
其他的也不多说了，全是一些 API 的使用，下面我就用 EditorGUI 和 EditorGUILayout 写个小例子，给大家看一下
代码：
1 using UnityEngine;
2 using UnityEditor;
3
4 public class EditorGUILayoutTest : EditorWindow
5 {
6 private Vector3 startPoint;//起点
7 private Vector3 endPoint;//终点
8 private float distance = 0f;//起点到终点的距离
9
10 private bool val;
11 private Color color = Color.red;
12
13 private AnimationCurve curveX = AnimationCurve.Linear(0, 0, 1, 0);
14 private AnimationCurve curveY = AnimationCurve.Linear(0, 0, 1, 1);
15 private AnimationCurve curveZ = AnimationCurve.Linear(0, 0, 1, 0);
16
17 private int sliderValue = 1;
18 private bool showClose = true;
19 private bool showToggleLeft = true;
20 private string textfieldtest = "textfieldtest";
21 private string password = "pwd123456";
22
23 private float minVal = -10.0f;
24 private float minLimit = -20.0f;
25 private float maxVal = 10.0f;
26 private float maxLimit = 20.0f;
27
28 [MenuItem("MyWindow/WindowTest")]
29 private static void Init()
30 {
31 EditorGUILayoutTest window = (EditorGUILayoutTest)EditorWindow.GetWindow(typeof(EditorGUILayoutTest));
32 window.Show();
33 }
34
35 private void OnGUI()
36 {
37 //Vector3类型数据的显示
38 startPoint = EditorGUILayout.Vector3Field("Start Point:", startPoint);
39 endPoint = EditorGUILayout.Vector3Field("End Point:", endPoint);
40 //只读的标签
41 EditorGUILayout.LabelField("Distance:", Vector3.Distance(startPoint, endPoint).ToString("f2"));
42 //勾选框
43 val = EditorGUILayout.Toggle("Can Jump", val);
44 //是否开启禁用功能。false表示禁用关闭，true表示开启禁用--灰色状态
45 EditorGUI.BeginDisabledGroup(val);//
46 //float类型文本Text
47 EditorGUILayout.FloatField("跳跃高度：", 100.0f);
48 //结束禁用
49 EditorGUI.EndDisabledGroup();
50 EditorGUILayout.FloatField("跳跃频率：", 1.85f);
51 //Bounds输入框
52 EditorGUILayout.BoundsField("BoundsField", new Bounds(new Vector3(50, 50, 50), new Vector3(150, 150, 150)));
53 //颜色选择框
54 color = EditorGUILayout.ColorField("颜色:", color);
55 //按钮
56 if (GUILayout.Button("Close"))
57 {
58 this.Close();
59 }
60 //带有阴影的Label
61 EditorGUI.DropShadowLabel(new Rect(0, 250, position.width, 20), "带有阴影的Label");
62 //动画曲线
63 curveX = EditorGUI.CurveField(new Rect(3, 320, position.width - 6, 50), "Animation on X", curveX);
64 curveY = EditorGUI.CurveField(new Rect(3, 370, position.width - 6, 50), "Animation on Y", curveY);
65 curveZ = EditorGUI.CurveField(new Rect(3, 420, position.width - 6, 50), "Animation on Z", curveZ);
66 //数字输入
67 EditorGUI.DelayedDoubleField(new Rect(3, 480, position.width - 6, 20), "DelayedDoubleField1", 25.0);
68 EditorGUI.DelayedFloatField(new Rect(3, 500, position.width - 6, 20), "DelayedFloatField", 25.0f);
69 EditorGUI.DelayedIntField(new Rect(3, 520, position.width - 6, 20), "DelayedIntField", 25);
70 EditorGUI.DelayedTextField(new Rect(3, 540, position.width - 6, 20), "DelayedTextField");
71 //绘画矩形
72 EditorGUI.DrawRect(new Rect(3, 570, position.width - 60, 20), Color.green);
73 //滑动条。输入框(值不能滑动): 注意左边必须要有值接收这个值，否则不能滑动
74 sliderValue = EditorGUI.IntSlider(new Rect(3, 600, position.width - 60, 30), sliderValue, 0, 100);
75 //帮助盒子信息框
76 EditorGUI.HelpBox(new Rect(3, 645, position.width - 60, 40), "HelpBox帮助盒子", MessageType.Info);
77 //Toggle 开关
78 showClose = EditorGUI.Toggle(new Rect(3, 685, position.width - 60, 20), "Toggle", showClose);
79 showToggleLeft = EditorGUI.ToggleLeft(new Rect(3, 710, position.width - 60, 20), "ToggleLeft", showToggleLeft);
80 textfieldtest = EditorGUI.TextField(new Rect(3, 735, position.width - 60, 20), "TextField", textfieldtest);
81 password = EditorGUI.PasswordField(new Rect(3, 760, position.width - 60, 20), "密码框:", password);
82 //最大值和最小值滑块
83 EditorGUI.MinMaxSlider(new Rect(3, 790, position.width - 60, 20), ref minVal, ref maxVal, minLimit, maxLimit);
84 }
85
86 private void OnInspectorUpdate()
87 {
88 this.Repaint();
89 }
90 }
效果图：
