private void StartService(CancellationToken ct)
{
Task.Factory.StartNew(() =>
{
try
{
//获取在屏幕上显示的下一个位置
int nextLocation = FindNextLocation();
if (nextLocation != -1)
{
while (!ct.IsCancellationRequested && queueMessages.Count > 0)
{
NotifyMessage notifyMsg = null;
if (queueMessages.TryDequeue(out notifyMsg))
{
NotifyMessageViewModel viewModel = new NotifyMessageViewModel
(notifyMsg,
displayLocations[nextLocation],
() =>
{
displayMessages[nextLocation] = null;
try
{
NotifyMessageTypeLists.Remove(notifyMsg.ErrorCode);
}
catch (Exception ex)
{ }
}
);
displayMessages[nextLocation] = viewModel;
var dispatcher = Application.Current.Dispatcher;
dispatcher.Invoke(new Action(() =>
{
NotifyMessageView window = new NotifyMessageView();
window.ShowInTaskbar = false;
window.DataContext = viewModel;
window.Show();
}), DispatcherPriority.Background);
Thread.Sleep(1000);
}
}
Stop();
}
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
}
);
}
/// <summary>
/// 异步显示信息
/// </summary>
/// <param name="msg">显示的信息<see cref="NotifyMessage"/></param>
public void EnqueueMessage(NotifyMessage msg)
{
try
{
if (!NotifyMessageTypeLists.Contains(msg.ErrorCode))
{
NotifyMessageTypeLists.Add(msg.ErrorCode);
queueMessages.Enqueue(msg);
Start();
}
}
catch (Exception ex)
{ }
}
public NotifyMessageViewModel(NotifyMessage content, AnimateLocation location, Action closeAction)
{
this._content = content;
this._location = location;
this._closeAction = closeAction;
}