/// <summary>
/// 执行两个操作：
/// 1，记下对Dispatcher.CurrentDispatcher的引用，因为Splash会另开一个UI线程，防止访问到Splash线程的Dispatcher.CurrentDispatcher；
/// 2，设置Writer.UIThreadId；
/// </summary>
public static void InitializeWithDispatcher(Dispatcher dispatcher)
{
_dispatcher = dispatcher;
Write.SetUIThreadId(_dispatcher.Thread.ManagedThreadId);
}