Unity - UI interaction

The event interaction of the UI must exist in the EventSystem interaction event system

Canvas Ray Emitter

 

                : Whether to ignore the reverse ray operation

                 2d or 3d or all objects will block this event

                 The rendering layer of the object that occludes the event

 

                        Whether to receive Canvas rays

If you want a range without extra borders, you can rotate the button if you change the picture to transparent 

Button component

 

                Is it possible to interact 

                Interactive effect:

                        None no interaction effect 

                        Color Tint color change

                         Switching of Sprite Swap images 

 

                 Whether to enable keyboard navigation

call back

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.Events;

public class 回调 : MonoBehaviour
{
    //声明一个委托
    public UnityAction Callback;

   
    void Start()
    {
        //指定委托
        Callback = Success;
        for(int i = 0;i < 10; i++)
        {
            Debug.Log(1);
        }

        //调用委托
        Callback();
    }

    
    //Success方法
    public void Success()
    {
        Debug.Log("Success");
    }

}

button trigger event

        1. Write the function to be triggered  and place it on any game object

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class ButtonAttack : MonoBehaviour
{
   public void Buttonattack()
    {
        Debug.Log("1234");
    }
}

        2. Click to add press event

         3. Drag the game object in and specify the method

 

Automatically add press event

    /// <summary>
    /// 自动添加按钮事件
    /// </summary>
    void Start()
    {
        //先获取要添加的位置
        GameObject sub = GameObject.Find("/Canvas/Sumbit");
        //获取button组件
        Button button = sub.GetComponent<Button>();
        //添加指定的方法
        button.onClick.AddListener(Test);
    }

   void Test()
    {
        Debug.Log("789");
    }

Toggle component

 

                Group 

Implement radio

        1. Create an empty object first, then add Toggle Group

                

         2. Add selected boxes to a group

        ​​​​​​​        

 

        Is it allowed to turn off every option 

        Slider component

        Control volume with Slider

                1. First add the game object to the sound component (Audio Source)

         2. Write a script to control the sound, and put it on a game object with the sound component

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class ChangerSlider : MonoBehaviour
{
   public void changeSlider(float v)
    {
        //获得slider传入的值，并且把这个值给音量
        this.gameObject.GetComponent<AudioSource>().volume = v;
    }
}

        3. Specify the Slider component

Input File component

InputField event

        When the input content of the text box changes, execute the callback function

        When the text box finishes typing, execute the callback function

public class InputText : MonoBehaviour
{
   public void OnChage(string name)
    {
        Debug.Log("Change:" + name);
    }

    public void OnEnd(string name)
    {
        Debug.Log("End:" + name);
    }
}