strangleIOC使用笔记

Posted 2020-09-25 阳春白雪

从asset store将strangeIOC下载下来后，运行其中的example，myfirstproject和signalsproject都没有问题，而运行第三个例子mutiplecontext时，就出现了空引用调用的问题，ShipView在Init()中添加ClickDetector时，获取ClickDetector的实例，其中的dispatcher为null;后来通过对比，改为从Resources中动态加载,让其成为ShipView的子对象，并在startcommand()中加载ShipView,具体代码如下：

1.StartGameCommand.cs

public class StartGameCommand : Command
	{
		[Inject]
		public IGameTimer timer{get;set;}
		
        [Inject(ContextKeys.CONTEXT_VIEW)]
        public GameObject contextView { get; set; }
        public override void Execute()
		{
			timer.Start();
            GameObject go = new GameObject();
            go.name = "ShipView";
            go.AddComponent<ShipView>();
            go.transform.parent = contextView.transform;
            go = new GameObject();
            go.name = "EnemyView";
            go.AddComponent<EnemyView>();
            go.transform.parent = contextView.transform;
        }
	}

2.ShipView.cs

 GameObject latestGO;
        internal void init()
		{
            latestGO = Instantiate(Resources.Load("ship")) as GameObject;
            GameObject go = latestGO;
            go.name = "ship";
            go.transform.parent = gameObject.transform;
            go.AddComponent<ClickDetector>();
            ClickDetector clicker = go.GetComponent<ClickDetector>() as ClickDetector;
            clicker.dispatcher.AddListener(ClickDetector.CLICK, onClick);
		}

3.Resources文件夹：

 

 ship要去掉上面的shipView.cs脚本，这个由StartGameCommand这个方法运行时加载；

究其错误原因，应该是ClickDetector.cs脚本不应该挂在shipView.cs的同级对象上面，应挂在其子对象上面，这样才能取到dispatcher;

修改之后运行：

 

 

null