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  • C# 事件event

    public class AAA: MonoBehaviour {
    
        public delegate void PlayEndDelegate();
        //此处可以使用内置的Action或Func委托简化,
        //具体参考 https://www.cnblogs.com/kingBook/p/5383415.html
        public event PlayEndDelegate playEndEvent;
    
        private void playEndHandler(){
            playEndEvent();
            //判断是否为null
            //if(playEndEvent!=null)playEndEvent();
            //判断是否为null,还可以简化
            //playEndEvent?.Invoke();
        }
    
    }
    
    public class BBB: MonoBehaviour {
        private AAA _aaa;
        void Start () {
            _aaa=new AAA();
            _aaa.playEndEvent+=onPlayEndHandler;//添加侦听
            _aaa.playEndHandler();
        }
    
        private void onPlayEndHandler(){
            Debug.Log("bbb onPlayEndHandler");
        }
        
        void OnDestroy(){
            _aaa.playEndEvent-=playEndHandler;//移除侦听
        }
    }
    //output: bbb onPlayEndHandler
    
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  • 原文地址:https://www.cnblogs.com/kingBook/p/11102007.html
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