Slider和InputField

效果：

功能原理介绍：

功能： 通过代码控制Input Field 输入的颜色名称和slider的value 值来改变rgb的值从而改变图片的背景颜色；图片初始颜色为黑色

代码：

using UnityEngine;
using UnityEngine.UI;

public class sliderrgb : MonoBehaviour
{
    public Image ugui_image;
    public Text ugui_text;
    public Slider[] sliders;
    public Toggle toggle;
    public bool is_UpdateImage;
    public float r, g, b;
    // Start is called before the first frame update
    void Start()
    {
        r = g = b = 0;
        UpdateInfo();
    }

    // Update is called once per frame
    void Update()
    {
        if (toggle.isOn)
        {
            UpdateInfo();
        }
    }
    void UpdateInfo()
    {
        Debug.Log("what!");
        ugui_image.color = new Color(r, g, b);
        ugui_text.text = "color:";
    }

    public void InputField_SetColor(InputField inputField)
    {
        switch (inputField.text)
        {
            case "Red": case "red":
                ugui_image.color = Color.red;break;

            case "Green": case "green":
                ugui_image.color = Color.green;break;

            case "Blue": case "blue":
                ugui_image.color = Color.blue;break;
                    
        }
    }
    public void Slider_SetColorR(Slider slider)
    {
        r = slider.value;
    }
    public void Slider_SetColorG(Slider slider)
    {
        g = slider.value;
    }
    public void Slider_SetColorB(Slider slider)
    {
        b = slider.value;
    }

    public void Button_Reset()
    {
        r = g = b = 1.0f;
        ugui_image.color = new Color(r, g, b);
        foreach (Slider slider in sliders)
            slider.value = 1f;
        toggle.isOn = false;
    }
}

本项目把代码挂载到画布上，然后依次调整slides的value值来改变rgb的值，进而控制图片颜色，具体操作如下：

基础界面介绍：

slider的操作：

Inputfield的操作：

Button重置的操作：

完事！