async Task AddSong(Song song)
{
var name = await Application.Current.MainPage.DisplayPromptAsync("Name", "NameMessage");
var singer = await Application.Current.MainPage.DisplayPromptAsync("Singer", "SingerMessage");
var length = await Application.Current.MainPage.DisplayPromptAsync("Length", "length");
await InternetSongService.AddSong(name, singer, length);
await Refresh();
}
async Task Refresh()
{
//Mode设置为twoWay会自动设置IsBusy=True
IsBusy = true;
await Task.Delay(1000);
song.Clear();
var songs = await InternetSongService.GetSong();
song.AddRange(songs);
IsBusy = false;
}
async Task DeleteSong(Song song)
{
await InternetSongService.DeleteSong(song.Id);
await Refresh();
}