[英]How to access the OnClick event via Script
您可以將事件與其他類一起使用。 這是代碼:
using UnityEngine;
using System.Collections;
using UnityEngine.UI;
public class SongButton : MonoBehaviour {
public delegate void SongButtonEvent(int index);
public static event SongButtonEvent OnSongButtonClick;
void ClickSongButton(){
if (OnSongButtonClick != null)
OnSongButtonClick (index);
}
public Button button;
public Text songName;
public int unlocked;
public AudioClip clip;
public int index;
void Start () {
button.onClick.AddListener (ClickSongButton);
}
public void Initialize(int index,Song song){
this.index = index;
songName.text = song.songName;
unlocked = song.unlocked;
clip = song.clip;
button.interactable = song.isInteractable;
}
}
首先,我創建一個Initialize方法。 它使用Song對象變量進行初始化,並使用索引作為按鈕ID。 在我創建一個事件以通知索引的偵聽器之后。
using UnityEngine;
using System.Collections;
using UnityEngine.UI;
using System.Collections.Generic;
[System.Serializable]
public class Song
{
public string songName;
public int unlocked;
public bool isInteractable;
public AudioClip clip;
}
public class SongManager : MonoBehaviour
{
public SongButton button;
public Transform panel;
public List<Song> songList;
void OnEnable(){
SongButton.OnSongButtonClick += SongButton_OnSongButtonClick;
}
void OnDisable(){
SongButton.OnSongButtonClick -= SongButton_OnSongButtonClick;
}
void SongButton_OnSongButtonClick (int index)
{
Debug.Log ("index : " + index + " - song name : " + songList [index].songName);
}
void Start ()
{
FillList ();
}
void FillList ()
{
for (int i = 0; i < songList.Count; i++) {
SongButton songButton = Instantiate (button) as SongButton;
songButton.Initialize (i, songList [i]);
songButton.transform.SetParent (panel, false);
}
}
}
SongManager啟用后,它將開始偵聽OnSongButtonClick事件。 這樣,您可以知道單擊了哪個按鈕。
希望對您有所幫助。
您將函數名稱傳遞給AddListener
參數。
public GameObject go;
Button myButton = null;
void Start()
{
myButton = go.GetComponent<Button>();
myButton.onClick.AddListener(() => myCallBackFunction());
}
void myCallBackFunction()
{
Debug.Log("Button Clicked!");
}
您還可以執行以下操作: myButton.onClick.AddListener(delegate { myCallBackFunction(); });
注意:
請下次發布您的代碼,而不是發布其屏幕截圖。
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