Unity GUI的入门介绍

 Unity的GUI这东西如果学过C#的话,应该很好理解的,可以认为是.net的用户交互控件,实际上应该也就是这个样子,类似于Button,Label,Textbox….的这些东西在GUI里面都有。使用的时候也可以随时添加删除。所以还是很简单的。
 但是UnityGUI控制是利用一类被称为OnGUI()的函数,只要在控制脚本激活的状态下,OnGUI()函数会在每帧调用,就像Update( )函数一样。所以我感觉一般还是直接拖拽添加,而不是使用这个函数。
 脚本如下:

using UnityEngine;
using System.Collections;

public class Gui : MonoBehaviour {
    public GUIStyle buttonstyle;
    string text="";
    bool result;
    float hsliderVale;
    // Use this for initialization
    void Start () {

    }

    // Update is called once per frame
    void Update () {

    }
    void OnGUI(){
        hsliderVale = GUI.HorizontalScrollbar (new Rect(80, 100, 100, 30),hsliderVale,2,0,10);
        result = GUI.Toggle(new Rect(10 * hsliderVale, 170, 100, 30),result,"Toggle");
                text = GUI.TextField(new Rect (310, 330, 100, 40),text);
                GUI.Button(new Rect(180,120,100,150),"这是一个button按钮","button");
                GUI.Button(new Rect(110,120,200,210),"这是一个button按钮","toggle");
                GUI.Label(new Rect(0,0,200,50),"box类型的lable","box");
                GUI.Label (new Rect (150, 110, 200, 100), "buttonstyle");
             if (GUI.RepeatButton(new Rect (310, 220, 200, 100),text) )
            {
                print("用户单击了重复按钮");    
            }

    }
}

 效果如图:
Unity GUI的入门介绍_第1张图片

 注意Rect()这个定位函数被多次用到,其具体的定义如下:

Rect(x,y,w,h)
x表示水平距离,即以左上角为0,0点,距离左边的距离
y表示垂直距离,距离顶部的距离
w表示这个矩形的宽度
h表示这个矩形的高度

以下是多种组件的脚本中的具体使用方式
一、Label

四个角定位

    GUI.Label(new Rect(30, 10, 100, 200), "zzzzzz");
    GUI.Label(new Rect(30, Screen.height - 50, 100, 200), "zzzzzz");
    GUI.Label(new Rect(Screen.width - 50, Screen.height - 50, 100, 200), "zzzzzz");
    GUI.Label(new Rect(Screen.width - 50, 10, 100, 200), "zzzzzz");
    #endregion

二、Button

 GUI.Label(new Rect(30, 30, 100, 200), "Button");
        GUI.Button(new Rect(30, 50, 50, 50), "这个是一个按钮");
        GUI.Button(new Rect(90, 50, 50, 50), text);
        //带图片带文字的按钮
        GUIContent guic = new GUIContent("按钮", text);
        GUI.Button(new Rect(150, 50, 50, 50), guic);
        //按键从上往下排 自动排序
        if (GUILayout.Button("1"))
            Debug.Log("1");
        if (GUILayout.Button("2"))
            Debug.Log("2");
        if (GUILayout.Button("3"))
            Debug.Log("3");
        if (GUILayout.Button("4"))
            Debug.Log("4");
        if (GUILayout.Button("5"))
            Debug.Log("5");
        if (GUILayout.Button("6"))
            Debug.Log("6");
        if (GUILayout.Button("7"))
            Debug.Log("7");
        if (GUILayout.Button("8"))
            Debug.Log("8");

三、Toggle控件

  GUI.Label(new Rect(30, 100, 100, 200), "Toggle");
  toggle1 = GUI.Toggle(new Rect(30, 120, 100, 30), toggle1, "Toggle");
  toggle2 = GUI.Toggle(new Rect(30, 150, 100, 30), toggle2, text);

四、滑动条

GUI.Label(new Rect(30, 180, 100, 200), "滑动条");
    hSliderValue = GUI.HorizontalSlider(new Rect(30, 200, 100, 30), hSliderValue, 0, 10);
    Show("水平滑动条:" + hSliderValue);
    vSliderVaule = GUI.VerticalSlider(new Rect(0, 200, 30, 100), vSliderVaule, 0, 10);

五、Toolbar

 toolbarInt = GUI.Toolbar(new Rect(30, 250, 250, 30), toolbarInt, new string[]
  { "功能一", "功能二", "功能三" });
        if (lastValue != toolbarInt)
        {
            if (toolbarInt == 0)
                Debug.Log(1111);
            if (toolbarInt == 1)
                Debug.Log(2222);
            if (toolbarInt == 2)
                Debug.Log(3333);
            lastValue = toolbarInt;
        }

六、Scrollbar

  GUI.Label(new Rect(30, 300, 100, 200), "Scrollbar");
  hSbarValue, 1.0f, 0.0f, 10.0f);
  vSbarValue = GUI.VerticalScrollbar(new Rect(0, 320, 30, 100), 
  vSbarValue, 1.0f, 0.0f, 10.0f);

七、菜单

    GUI.Box(new Rect(30, 350, 100, 100), "Menu");
    if (GUI.Button(new Rect(40, 370, 80, 20), "1"))

八、TextField

 useNmae = GUI.TextField(new Rect(Screen.width / 2, Screen.height / 2 - 200, 150, 30), useNmae);
        //*****密码字符的掩码字符
        passWord = GUI.PasswordField(new Rect(Screen.width / 2, Screen.height / 2 - 150, 150, 30), passWord, '*', 25);
        if (GUI.Button(new Rect(Screen.width / 2, Screen.height / 2 - 50, 150, 30), "登录"))
        {
            isBntLogin = true;
            Debug.Log(isBntLogin+ "isBntLogin");
            if (useNmae.Equals("admin") && passWord.Equals("123"))
            {
                isSuccess = true;
                GUI.Label(new Rect(500, 350, 150, 30), "登录成功");
            }
            else
            {
                isSuccess = false;
                GUI.Label(new Rect(500, 350, 150, 30), "登录失败");
            }


        }
        if (isBntLogin)
        {
            if (isSuccess)
                GUI.Label(new Rect(Screen.width / 2, Screen.height / 2 + 50, 150, 30), "登录成功");
            else
            {
                GUI.Label(new Rect(Screen.width / 2, Screen.height / 2 + 50, 150, 30), "登录失败");
            }
        }

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