//获取对应的canvas：UICanvas or PopCanvas：如果有则直接取值，如果没有则会执行创建过程
private Canvas GetCanvasByLayer(PopCanvasLayer canvasLayer)
{
GameObject tStandardCanvs = GameObject.Find("Canvas");//用来赋值
//依据不同的层来确定Canvas的名称
string strCanvasName = canvasLayer == PopCanvasLayer.E_UILayer ? "UICanvas" : "PopCanvas";
//依据名称去查找Canvas是否已经被创建了，如果没有被创建，则创建之
GameObject tPopCanvs = GameObject.Find(strCanvasName);
if (tPopCanvs == null)
{
//创建Canvas并设置摄像机信息，Layer信息，位置信息，RenderMode信息，planeDistance信息，scaler信息
tPopCanvs = new GameObject();
Canvas tCanvas = tPopCanvs.AddComponent <Canvas>();
tPopCanvs.name = strCanvasName;
tCanvas.sortingLayerName = canvasLayer == PopCanvasLayer.E_UILayer ? "UIPOP" : "pop";
tCanvas.worldCamera = GameObject.Find("UICamera").GetComponent <Camera>();
tCanvas.renderMode = RenderMode.ScreenSpaceCamera;
// added by jackmo at 2016-12-22，美术要求
tCanvas.planeDistance = 400;
// added end
if (tStandardCanvs != null)
{
CanvasScaler tCanvasScaler = tPopCanvs.AddComponent <CanvasScaler>();
tCanvasScaler.uiScaleMode = CanvasScaler.ScaleMode.ScaleWithScreenSize;
tCanvasScaler.referenceResolution = tStandardCanvs.GetComponent <CanvasScaler>().referenceResolution;
tCanvasScaler.matchWidthOrHeight = tStandardCanvs.GetComponent <CanvasScaler>().matchWidthOrHeight;
}
tPopCanvs.AddComponent <GraphicRaycaster>();
}
return(tPopCanvs.GetComponent <Canvas>());
}
//增加一个新的弹窗：prefabName：预设路径，canvasLayer：指定是在UI层还是Pop层
//insertInfo：如果是ui层，则是uiLayerPopUps，如果是Pop层，则是popLayerPopUps
//showPriority：显示优先级
private GameObject AddPopupNew(string prefabName, PopCanvasLayer canvasLayer, ref List <PopupInfo> insertInfo, int showPriority, string id = "")
{
//jony add
GameObject prefab = PrefabManager.Instance.GetPrefabs(prefabName);
if (prefab == null)
{
Lucky.LuckyUtils.Log("No preload, use resouce.load:" + prefabName);
prefab = (GameObject)Resources.Load(prefabName);
if (prefab == null)
{
Lucky.LuckyUtils.Log("AddPopup, Cannot find prefab!");
return(null);
}
}
//add end
Canvas canvas = null;
GameObject popUp = null;
//创建PopUp
popUp = GameObject.Instantiate(prefab, Vector3.zero, Quaternion.identity) as GameObject;
// added by jackmo at 2017-2-6，扫描bug，popUp判空
if (popUp == null)
{
Lucky.LuckyUtils.Log("PopupManager, AddPopupNew, Cannot Instantiate the prefab!");
return(null);
}
// added end
//GetCanvasByLayer：获取对应的canvas：UICanvas or PopCanvas：如果有则直接取值，如果没有则会执行创建过程
canvas = GetCanvasByLayer(canvasLayer);
//设置popUp位置：居中显示在屏幕上
popUp.transform.SetParent(canvas.transform, false);
popUp.transform.localPosition = Vector3.zero;
popUp.transform.localScale = Vector3.one;
(popUp.transform as RectTransform).SetAsLastSibling();
//给所有的物件都挂上DestroyEventUI：该脚本的OnDestory函数里面会通知到PopUpMgr.OnDestroy
//所以实现了PopUpMgr监听弹窗的销毁事件
DestroyEventUI destroyUi = popUp.GetComponent <DestroyEventUI>();
if (destroyUi == null)
{
destroyUi = popUp.AddComponent <DestroyEventUI>();
}
destroyUi.onDestroy += OnDestroy;
//创建popInfo，准备插入到显示队列里面去
PopupInfo popInfo = new PopupInfo();
popInfo.gameObj = popUp;
popInfo.showPriority = showPriority;
if (id != null && !id.Equals(""))
{
popInfo.strId = id;
}
else
{
popInfo.strId = prefabName;
}
//插入过程：根据showPriority从队列尾部遍历插入
bool insertSuc = false;
for (int idx = insertInfo.Count - 1; idx >= 0; --idx)
{
if (insertInfo[idx].showPriority <= showPriority)
{
insertInfo.Insert(idx + 1, popInfo);
insertSuc = true;
break;
}
}
//没找到合适的位置插入，说明该弹窗的showPriority是最小的，所以往顶部插
if (!insertSuc)
{
insertInfo.Insert(0, popInfo);
}
//刚插入进去，等下一帧update里面会执行checkshow逻辑，如果该弹窗优先级是最高的，则她会在下一帧弹出来
popUp.GetComponent <BaseScene>().SetVisable(false);
needCheckToShowPopup = true;
return(popUp);
}