Unity_AppMain(堆栈处理)

public class AppMain : MonoSingleton<AppMain> {    public delegate void OnBackDelegate();    Stack<OnBackDelegate> _OnBackStack = new Stack<OnBackDelegate>();      public void PushOnBack(OnBackDelegate cb)    {        _OnBackStack.Push(cb);    }    public void PopOnBack()    {        if(_OnBackStack.Count > 0)        {            _OnBackStack.Pop();        }    }    public void ClearOnBackStack()    {        _OnBackStack.Clear();    }

实现方法如下:

AppMain.Instance.PopOnBack();AppMain.Instance.PushOnBack(方法名);