public async Task LoadItems()
{
if (IsBusy)
{
return;
}
IsBusy = true;
try
{
SavedList.Clear();
var notationList = await NotationStorageHelper.GetAll();
NothingToSee = notationList.Count == 0;
foreach (var item in notationList)
{
SavedList.Add(item);
}
}
catch (Exception ex)
{
Debug.WriteLine(ex);
}
finally
{
IsBusy = false;
}
}
public async void ToggleFavoriteNotation()
{
if (HasFavoritedNotation)
{ // unfavoriting
var success = await _serviceFavorites.Delete <bool>(_notationId);
if (success)
{
_favoriteToolbarItem.IconImageSource = ImageSource.FromFile("star_empty.png");
HasFavoritedNotation = false;
NotationStorageHelper.Remove(_notationId);
}
}
else
{ // favoriting
var request = new Model.Requests.FavoritesInsertRequest
{
NotationId = _notationId
};
var entity = await _serviceFavorites.Insert <Model.Favorites>(request);
if (entity != null)
{
_favoriteToolbarItem.IconImageSource = ImageSource.FromFile("star_filled.png");
HasFavoritedNotation = true;
}
}
}
private void LoadDownloadButton()
{
var notation = NotationStorageHelper.Get(_notationId);
if (notation != null)
{
_downloadToolbarItem.IconImageSource = ImageSource.FromFile("icon_downloaded.png");
}
else
{
_downloadToolbarItem.IconImageSource = ImageSource.FromFile("icon_download.png");
}
}
private async Task LoadSavedItems()
{
SavedNotationsList.Clear();
var notations = await NotationStorageHelper.GetAll();
foreach (var item in notations)
{
if (item.Song.Album.AlbumCover.Length == 0)
{
item.Song.Album.AlbumCover = File.ReadAllBytes("logo.png");
}
SavedNotationsList.Add(item);
}
}
public async void DownloadNotation()
{
var notation = NotationStorageHelper.Get(_notationId);
if (notation != null)
{
NotationStorageHelper.Remove(_notationId);
_downloadToolbarItem.IconImageSource = ImageSource.FromFile("icon_download.png");
await Application.Current.MainPage.DisplayAlert("Success", "Notation has been deleted from the device.", "OK");
}
else
{
await NotationStorageHelper.Add(_notation);
_downloadToolbarItem.IconImageSource = ImageSource.FromFile("icon_downloaded.png");
await Application.Current.MainPage.DisplayAlert("Success", "Notation successfully saved.", "OK");
}
}
private async void ListView_ItemTapped(object sender, ItemTappedEventArgs e)
{
if (e.Item != null)
{
Models.MenuItem menuItem = e.Item as Models.MenuItem;
if (menuItem.Page == null)
{
SecureStorage.Remove("username");
SecureStorage.Remove("password");
NotationStorageHelper.RemoveAll();
Application.Current.MainPage = new LoginPage();
}
else
{
Page instance = (Page)Activator.CreateInstance(menuItem.Page);
await Navigation.PushAsync(instance);
}
}
}
private async Task LoadNotation()
{
if (HasConnectivity)
{
Notation = await _serviceNotations.GetById <Model.Notations>(_notationId);
}
else
{
Notation = NotationStorageHelper.Get(_notationId);
if (Notation == null)
{
await Application.Current.MainPage.DisplayAlert("Error", "Could not load notation.", "OK");
#pragma warning disable CS0612 // Type or member is obsolete
Application.Current.MainPage = new MainPage();
#pragma warning restore CS0612 // Type or member is obsolete
return;
}
}
LastEditInfo = "on " + Notation.LastEditted.ToShortDateString();
Title = Notation.Type.ToString() + "s";
}