protected static void setCallback(ScaleCallback callback, object userData, ref ScaleCallback curCallback, ref object curUserData, ComponentScale component)
{
ScaleCallback tempCallback = curCallback;
object tempUserData = curUserData;
curCallback = null;
curUserData = null;
// 如果回调函数当前不为空,则是中断了正在进行的变化
if (tempCallback != null)
{
tempCallback(component, tempUserData, true, false);
}
curCallback = callback;
curUserData = userData;
}
protected void doneCallback(ScaleCallback curDoneCallback, object curDoneUserData, ComponentScale component)
{
// 先保存回调,然后再调用回调之前就清空回调,确保在回调函数执行时已经完全完成
ScaleCallback tempCallback = curDoneCallback;
object tempUserData = curDoneUserData;
clearCallback();
if (tempCallback != null)
{
tempCallback(component, tempUserData, false, true);
}
}