private void ShowToast(ToastInfo toastInfo)
{
_toastQueue.Enqueue(toastInfo);
if (!IsToastVisible)
{
ProcessToastQueue();
}
}
void ShowNext()
{
if (!positioner.HasEmptySlot() || !toastsQueue.Any())
{
return;
}
ToastInfo info = toastsQueue[0];
toastsQueue.RemoveAt(0);
var content = new ToastContentControl()
{
Toast = info.toast
};
content.Content = info.toast.ViewModel;
content.Style = Style;
if (ContentTemplateSelector == null)
{
content.ContentTemplate = ContentTemplate ?? NotificationServiceTemplatesHelper.DefaultCustomToastTemplate;
}
content.ContentTemplateSelector = ContentTemplateSelector;
try {
info.win = new ToastWindow();
} catch {
content.TimeOutCommand.Execute(null);
return;
}
info.win.Content = content;
info.win.DataContext = info.toast.ViewModel;
if (double.IsNaN(content.Width) || double.IsNaN(content.Height))
{
throw new InvalidOperationException("The height or width of a custom notification can not be set to Auto");
}
System.Windows.Point position = positioner.Add(info, content.Width, content.Height);
info.win.Left = position.X;
info.win.Top = position.Y;
try {
info.win.Show();
} catch (System.ComponentModel.Win32Exception) {
content.TimeOutCommand.Execute(null);
return;
}
info.timer.Tick += (s, e) => {
content.TimeOutCommand.Execute(null);
info.timer.Stop();
};
info.timer.Start();
}
void RemoveVisibleToast(CustomNotification toast, NotificationResult result)
{
ToastInfo info = GetVisibleToastInfo(toast);
if (info == null)
{
return;
}
info.win.Close();
info.timer.Stop();
positioner.Remove(info);
info.source.SetResult(result);
}
internal void Hide(CustomNotification toast)
{
ToastInfo info = toastsQueue.FirstOrDefault(i => i.toast == toast);
if (info != null)
{
toastsQueue.Remove(info);
info.source.SetResult(NotificationResult.ApplicationHidden);
return;
}
RemoveVisibleToast(toast, NotificationResult.ApplicationHidden);
ShowNext();
}
public Task <NotificationResult> ShowAsync(CustomNotification toast, int msDuration = 3000)
{
var info = new ToastInfo {
toast = toast,
timer = new Timer()
{
Interval = msDuration
},
source = new TaskCompletionSource <NotificationResult>()
};
toastsQueue.Add(info);
ShowNext();
return(info.source.Task);
}
// Update is called once per frame
void Update()
{
if (!toasting)
{
if (toastQueue.Count > 0)
{
ToastInfo tInfo = toastQueue.Dequeue();
switch (tInfo.type)
{
case ToastType.Error:
toastBg.color = new Color(0.5f, 0.2f, 0f);
title.text = "错误";
break;
case ToastType.Info:
toastBg.color = new Color(0, 0, 0);
title.text = "通知";
break;
case ToastType.Other:
toastBg.color = new Color(0.8f, 0.6f, 0.2f);
title.text = "其他";
break;
}
content.text = tInfo.data;
toastBg.gameObject.SetActive(true);
toasting = true;
}
}
else
{
count += Time.deltaTime;
if (count > timeLimit)
{
toastBg.gameObject.SetActive(false);
toasting = false;
count = 0;
}
}
}
private async void ProcessToastQueue()
{
// For simplicity's sake, we stop the timer on tick, and re-start it only when needed
_toastTimer.Stop();
// Ensure we can always reset to a safe state, should something go wrong
if (_toastQueue.Count == 0)
{
_currentToast = null;
_currentToastHandled = false;
VisualStateManager.GoToState(this, "ToastHidden", true);
if (ShowSystemStatusBar)
{
Windows.UI.ViewManagement.StatusBar.GetForCurrentView().ShowAsync();
}
return;
}
// If a toast is already visible, we need to do the hide animation for that toast before showing
// the show animation for the next toast.
if (IsToastVisible)
{
VisualStateManager.GoToState(this, "ToastHidden", true);
await Task.Delay(250); // This delay is obviously dependent on the duration of the visual state transition storyboard
}
// Get the next toast from the queue
var toastInfo = _toastQueue.Dequeue();
// Informational toasts and normal toasts have different UI
if (_infoToast != null)
{
_infoToast.Visibility = toastInfo.IsInformational ? Visibility.Visible : Visibility.Collapsed;
}
if (_normalToast != null)
{
_normalToast.Visibility = toastInfo.IsInformational ? Visibility.Collapsed : Visibility.Visible;
}
if (toastInfo.IsInformational)
{
if (_infoToastText != null)
{
_infoToastText.Text = toastInfo.Text ?? string.Empty; // TextBlock.Text property can not be set to null!
}
}
else
{
if (_toastTitle != null)
{
_toastTitle.Text = toastInfo.Title ?? string.Empty;
_toastTitle.Visibility = string.IsNullOrEmpty(toastInfo.Title)
? Visibility.Collapsed
: Visibility.Visible;
}
if (_toastText != null)
{
_toastText.Text = toastInfo.Text ?? string.Empty;
}
}
if (ShowSystemStatusBar)
{
await Windows.UI.ViewManagement.StatusBar.GetForCurrentView().HideAsync();
await Task.Delay(50);
}
// Finally, transition to the visible state
VisualStateManager.GoToState(this, "ToastVisible", true);
// Set instance state and kick off timer
_currentToast = toastInfo;
_currentToastHandled = false;
_toastTimer.Start();
}
public void AddToast(ToastType type, string message)
{
ToastInfo toast = new ToastInfo(type, message);
toastQueue.Enqueue(toast);
}
private async void ProcessToastQueue()
{
// For simplicity's sake, we stop the timer on tick, and re-start it only when needed
_toastTimer.Stop();
// Ensure we can always reset to a safe state, should something go wrong
if (_toastQueue.Count == 0)
{
_currentToast = null;
_currentToastHandled = false;
VisualStateManager.GoToState(this, "ToastHidden", true);
if (ShowSystemStatusBar)
{
Windows.UI.ViewManagement.StatusBar.GetForCurrentView().ShowAsync();
}
return;
}
// If a toast is already visible, we need to do the hide animation for that toast before showing
// the show animation for the next toast.
if (IsToastVisible)
{
VisualStateManager.GoToState(this, "ToastHidden", true);
await Task.Delay(250); // This delay is obviously dependent on the duration of the visual state transition storyboard
}
// Get the next toast from the queue
var toastInfo = _toastQueue.Dequeue();
// Informational toasts and normal toasts have different UI
if (_infoToast != null)
{
_infoToast.Visibility = toastInfo.IsInformational ? Visibility.Visible : Visibility.Collapsed;
}
if (_normalToast != null)
{
_normalToast.Visibility = toastInfo.IsInformational ? Visibility.Collapsed : Visibility.Visible;
}
if (toastInfo.IsInformational)
{
if (_infoToastText != null)
{
_infoToastText.Text = toastInfo.Text ?? string.Empty; // TextBlock.Text property can not be set to null!
}
}
else
{
if (_toastTitle != null)
{
_toastTitle.Text = toastInfo.Title ?? string.Empty;
_toastTitle.Visibility = string.IsNullOrEmpty(toastInfo.Title)
? Visibility.Collapsed
: Visibility.Visible;
}
if (_toastText != null)
{
_toastText.Text = toastInfo.Text ?? string.Empty;
}
}
if (ShowSystemStatusBar)
{
await Windows.UI.ViewManagement.StatusBar.GetForCurrentView().HideAsync();
await Task.Delay(50);
}
// Finally, transition to the visible state
VisualStateManager.GoToState(this, "ToastVisible", true);
// Set instance state and kick off timer
_currentToast = toastInfo;
_currentToastHandled = false;
_toastTimer.Start();
}
private void ShowToast(ToastInfo toastInfo)
{
_toastQueue.Enqueue(toastInfo);
if (!IsToastVisible)
{
ProcessToastQueue();
}
}
private IEnumerator Play()
{
isToastPlaying = true;
while (true)
{
ToastInfo toastInfo = toastQueue.Peek();
textGenerator.Populate(toastInfo.Msg, settings);
float width = 0;
float height = 0;
IList <UILineInfo> lineInfos = textGenerator.lines;
if (textGenerator.lineCount == 1)
{
IList <UICharInfo> charInfos = textGenerator.characters;
int count = charInfos.Count;
for (int i = 0; i < count; i++)
{
width += charInfos[i].charWidth;
}
height = lineInfos[0].height;
}
else
{
IList <UICharInfo> charInfos = textGenerator.characters;
int count = charInfos.Count;
float curWidth = charInfos[0].charWidth;
for (int i = 1; i < count; i++)
{
if (charInfos[i - 1].charWidth > 0 && charInfos[i].charWidth < float.Epsilon)
{
if (width < curWidth)
{
width = curWidth;
}
curWidth = 0;
}
else
{
curWidth += charInfos[i].charWidth;
}
}
for (int i = 0; i < textGenerator.lineCount; i++)
{
height += lineInfos[i].height;
}
}
toastText.text = toastInfo.Msg;
if (width + PADDING_LEFT_F * 2 > maxWidth)
{
width = maxWidth - PADDING_LEFT_F * 2;
}
toastRectTrans.sizeDelta = new Vector2(width, height);
bgRectTrans.sizeDelta = new Vector2(width + PADDING_LEFT_F, height + PADDING_TOP_F);
float playTime = 0;
switch (toastInfo.ShowTime)
{
case ToastTime.Long:
playTime = LONG_PLAY_TIME_F;
break;
case ToastTime.Middle:
playTime = MIDDLE_PLAY_TIME_F;
break;
case ToastTime.Short:
playTime = SHORT_PLAY_TIME_F;
break;
}
WaitForSeconds animWait = new WaitForSeconds(ANIM_TIME_F * .1f);
for (int i = 0; i < 10; i++)
{
canvasGroup.alpha += .1f;
yield return(animWait);
}
yield return(new WaitForSeconds(playTime));
for (int i = 0; i < 10; i++)
{
canvasGroup.alpha -= .1f;
yield return(animWait);
}
toastQueue.Dequeue();
if (toastQueue.Count > 0)
{
yield return(new WaitForSeconds(INTERVAL_TIME_F));
}
else
{
break;
}
}
}
