GHZMRNavigator/Assets/Scripts/TabGroup/NormalTabButton.cs

using System;
using UnityEngine;
using UnityEngine.EventSystems;

public class NormalTabButton : TabButton
{

    private Transform m_NormalBg;
    private Transform m_SelectedBg;
    private Transform m_DisabledBg;
    protected Transform m_NormalTxt;
    protected Transform m_SelectedTxt;
    protected Transform m_DisabledTxt;
    public NormalTabButton(TabButtonGroup group) : base(group)
    {
    }
    protected override void Init()
    {
        base.Init();
        this.m_NormalBg = this.m_GameObject.transform.Find("Normal");
        this.m_SelectedBg = this.m_GameObject.transform.Find("Selected");
        this.m_DisabledBg = this.m_GameObject.transform.Find("Disabled");
        this.m_NormalTxt = this.m_GameObject.transform.Find("NormalTxt");
        this.m_SelectedTxt = this.m_GameObject.transform.Find("SelectedTxt");
        this.m_DisabledTxt = this.m_GameObject.transform.Find("DisabledTxt");
    }
    protected override void Render()
    {
        base.Render();
        if (this.m_Disabled)
        {
            this.ChangeState(ESelectionState.Disabled);
        }
        else
        {
            if (this.m_Selected)
            {
                this.ChangeState(ESelectionState.Pressed);
            }
            else
            {
                this.ChangeState(ESelectionState.Normal);
            }
        }
    }
    protected override void OnDown(PointerEventData eventData)
    {
        base.OnDown(eventData);
    }
    protected override void OnUp(PointerEventData eventData)
    {
        base.OnUp(eventData);
        if (base.Disabled)
        {
            return;
        }
        if (!base.Selected)
        {
            this.ChangeState(ESelectionState.Normal);
        }
    }
    private void ChangeState(ESelectionState state)
    {
        if (this.m_NormalBg != null)
        {
            this.m_NormalBg.gameObject.SetActive(state == ESelectionState.Normal);
        }
        if (this.m_SelectedBg != null)
        {
            this.m_SelectedBg.gameObject.SetActive(state == ESelectionState.Pressed);
        }
        if (this.m_DisabledBg != null)
        {
            this.m_DisabledBg.gameObject.SetActive(state == ESelectionState.Disabled);
        }
        if (this.m_NormalTxt != null)
        {
            this.m_NormalTxt.gameObject.SetActive(state == ESelectionState.Normal);
        }
        if (this.m_SelectedTxt != null)
        {
            this.m_SelectedTxt.gameObject.SetActive(state == ESelectionState.Pressed);
        }
        if (this.m_DisabledTxt != null)
        {
            this.m_DisabledTxt.gameObject.SetActive(state == ESelectionState.Disabled);
        }
    }
}

public enum ESelectionState
{
    Normal,
    Pressed,
    Disabled
}