Question

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

public class GenerateUIButtons : MonoBehaviour
{
    public Button buttonPrefab;
    public GameObject parent;
    public int numberOfButtons;
    public float spaceBetweenButtons;

    private Button[] buttons;

    // Start is called before the first frame update
    void Start()
    {
        buttons = new Button[Rotate.names.Length];

        for (int i = 0; i < buttons.Length; i++)
        {
            buttons[i] = Instantiate(buttonPrefab) as Button;
            buttons[i].name = Rotate.names[i];
            buttons[i].transform.SetParent(parent.transform, false);
            int j = i;
            buttons[i].onClick.AddListener(() => ButtonClicked(j));
        }
    }

    void ButtonClicked(int buttonNo)
    {
        Debug.Log("Clicked On " + buttons[buttonNo]);
    }

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

    }
}

我希望在ButtonClicked内单击按钮时，其内部的文本颜色将变为绿色，并保持绿色。如果再次单击同一绿色按钮，则将颜色更改回原始颜色。

像开关一样。

Answer 1

几天前我创建了一个自定义，请看下面的代码。

在这里您可以看到它的运行情况：https://youtu.be/sl9EheTbmhE

ToggleButton.cs

using System;
using UnityEngine;
using UnityEngine.Events;
using UnityEngine.EventSystems;
using UnityEngine.UI;

[RequireComponent(typeof(Image))]
public class ToggleButton : MonoBehaviour, IPointerClickHandler
{
    public ToggleEvent CheckedChanged = new ToggleEvent();

    Image _image;
    Color _originalColor;

    bool _checked;
    [SerializeField] Color _checkedColor;
    [SerializeField] ToggleButtonGroup _group;


    [SerializeField]
    public bool Checked
    {
        get
        {
            return _checked;
        }
        set
        {
            if (_checked != value)
            {
                _checked = value;
                UpdateVisual();
                CheckedChanged.Invoke(this);
            }
        }
    }

    void Start()
    {
        _image = GetComponent<Image>();
        _originalColor = _image.color;

        if (_group != null)
            _group.RegisterToggle(this);
    }

    private void UpdateVisual()
    {
        _image.color = Checked ? _checkedColor : _originalColor;
    }

    public void OnPointerClick(PointerEventData eventData)
    {
        Checked = !Checked;
    }

    [Serializable]
    public class ToggleEvent : UnityEvent<ToggleButton>
    {
    }
}

ToggleButtonGroup.cs

using System.Collections.Generic;
using UnityEngine;

public class ToggleButtonGroup : MonoBehaviour
{
    List<ToggleButton> _toggles = new List<ToggleButton>();

    public void RegisterToggle(ToggleButton toggle)
    {
        _toggles.Add(toggle);
        toggle.CheckedChanged.AddListener(HandleCheckedChanged);
    }

    void HandleCheckedChanged(ToggleButton toggle)
    {
        if (toggle.Checked)
        {
            foreach (var item in _toggles)
            {
                if (item.GetInstanceID() != toggle.GetInstanceID())
                {
                    item.Checked = false;
                }
            }
        }
    }
}

如何使按钮像拨动开关一样工作，或者使用拨动开关使拨动开关看起来像按钮？

1 个答案: