private async void PlayNext()
{
if (Item_list.Count != 0)
{
currentIndex = Math.Abs((currentIndex + 1) % Item_list.Count);
PlayBackList.SelectedIndex = currentIndex;
PlayBackList.ScrollIntoView(Item_list[currentIndex]);
await setNewMediaSource(Item_list[currentIndex]);
}
}
protected override async void OnNavigatedTo(NavigationEventArgs e)
{
var Items_in = (Items)e.Parameter;
Item_ = Items_in;
CoverIMG.Visibility = Visibility.Collapsed;
PlayArea.Visibility = Visibility.Collapsed;
await setNewMediaSource(Items_in);
base.OnNavigatedTo(e);
ConnectedAnimation animation =
ConnectedAnimationService.GetForCurrentView().GetAnimation("forwardAnimation_mc");
ConnectedAnimation animation_info =
ConnectedAnimationService.GetForCurrentView().GetAnimation("forwardAnimation_mcinfo");
if (animation != null)
{
animation.TryStart(CoverIMG);
}
if (animation_info != null)
{
animation_info.TryStart(LogoAndTitle, new UIElement[] { PlayArea, Info, PlayBackList });
}
CoverIMG.Visibility = Visibility.Visible;
PlayArea.Visibility = Visibility.Visible;
int count_ = 0;
try
{
for (int i = 0; i < ItemAccess.Cache.Count; i++)
{
if (FileType_check(ItemAccess.Cache[i]) == "Music")
{
Item_list.Add(new Items {
AccessSource = null, Date = ItemAccess.Cache[i].DateCreated.ToString(), Type = ItemAccess.Cache[i].DisplayType, Name = ItemAccess.Cache[i].Name, Path = ItemAccess.Cache[i].Path, StorageFile_ = ItemAccess.Cache[i], Size = await SizeOfFileAsync(ItemAccess.Cache[i]), Count = count_
});
if (Items_in.Name == ItemAccess.Cache[i].Name)
{
PlayBackList.SelectedIndex = count_;
PlayBackList.ScrollIntoView(Item_list[count_]);
currentIndex = count_;
}
count_++;
}
}
}
catch (Exception e1)
{
//TODO: 保存用户数据
await new ContentDialog
{
Title = "Error Occored",
Content = e1.Message,
CloseButtonText = "Closed",
DefaultButton = ContentDialogButton.Close
}.ShowAsync();
}
finally
{
//毁灭性错误
}
}