public void Back(object parm = null, Action closeFinish = null) { int count = mShowDialogList.Count; if (count > 0) { BaseView view = mShowDialogList[count - 1]; if (view != null && view.IsEnable) { view.Back(parm, closeFinish); return; } return; } count = mShowViewList.Count; if (count > 0) { BaseView view = mShowViewList[count - 1]; if (view != null && view.IsEnable) { view.Back(parm, closeFinish); } } }