private async void TimerCallback(object state)
{
KioskExperience nextKioskExperience = kioskRotation[nextKioskExperienceIndex];
nextKioskExperienceIndex = (nextKioskExperienceIndex + 1) % kioskRotation.Length;
await AppShell.Current.Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, async() =>
{
// Fade in the transition overlay
AppShell.Current.AppOverlay.Opacity = 0;
AppShell.Current.AppOverlay.Visibility = Visibility.Visible;
await new OpacityAnimation(1, TimeSpan.FromMilliseconds(1000)).Activate(AppShell.Current.AppOverlay);
// Move out of the page into the Demo Launcher page. We do this so we shutdown the camera in the current experience before we go to the next one.
AppShell.Current.NavigateToPage(typeof(DemoLauncherPage));
// Wait some time
await Task.Delay(2000);
// Move to the new experience
AppShell.Current.NavigateToExperience(nextKioskExperience);
// Fade out the transition overlay
await new OpacityAnimation(0, TimeSpan.FromMilliseconds(1000)).Activate(AppShell.Current.AppOverlay);
AppShell.Current.AppOverlay.Visibility = Visibility.Collapsed;
});
}
public void NavigateToExperience(KioskExperience experience)
{
if (this.AppFrame.CurrentSourcePageType != experience.PageType)
{
NavigateToPage(experience.PageType);
}
}
public async void Start()
{
// Stop current scheduler
Stop();
// Load the demo rotation
DemoLauncherConfig config = await SettingsPage.LoadDemoRotationConfigFromFileAsync();
kioskRotation = config.Entries.Where(entry => entry.Enabled).Select(entry => KioskExperiences.Experiences.First(exp => exp.Attributes.Id == entry.Id)).ToArray();
if (kioskRotation.Length > 0)
{
// Shuffled the demo order
Random random = new Random();
for (int i = 0; i < kioskRotation.Length; i++)
{
int r = random.Next(0, kioskRotation.Length);
KioskExperience temp = kioskRotation[r];
kioskRotation[r] = kioskRotation[i];
kioskRotation[i] = temp;
}
// Start the scheduler
nextKioskExperienceIndex = 0;
timer = new Timer(TimerCallback, null, TimeSpan.Zero, TimeSpan.FromMinutes(SettingsHelper.Instance.DemoRotationTimePerDemo));
}
}
public void NavigateToStartingPage()
{
KioskExperience startingExp = KioskExperiences.Experiences.FirstOrDefault(item => item.Attributes.Id == SettingsHelper.Instance.StartingPage);
if (startingExp == null)
{
NavigateToPage(typeof(DemoLauncherPage));
this.navView.SelectedItem = this.navlist.First();
}
else
{
NavigateToExperience(startingExp);
}
}