public void PlatformBeginInvokeOnMainThread(Action action,
MainThread2.DispatcherPriority priority = MainThread2.DispatcherPriority.Normal)
{
var priority_ = GetPriority(priority);
Dispatcher.UIThread.Post(action, priority_);
}
static DispatcherPriority GetPriority(MainThread2.DispatcherPriority priority) => priority switch
{
