private void InitializeCommands()
{
PrepareCommand = new Command(async () =>
{
try
{
await MediaPlayer.PrepareAsync();
// Calculates seek unit based on duration.
_seekUnit = Math.Max(1000, MediaPlayer.Duration / 20);
}
catch (Exception e)
{
ErrorText = e.Message;
}
});
PlayCommand = new Command(() =>
{
if (PlayerState == MediaPlayerState.Ready)
{
MediaPlayer.Start();
IsSeekable = true;
}
else
{
MediaPlayer.Stop();
}
});
PauseCommand = new Command(async () =>
{
if (PlayerState == MediaPlayerState.Playing)
{
MediaPlayer.Pause();
_subtitleDelayCancelSource.Cancel();
}
else
{
MediaPlayer.Start();
await ResumeSubtitleAsync();
}
});
StreamInfoCommand = new Command(() =>
{
Properties = Properties == null ? MediaPlayer.GetStreamInfo() : null;
});
SubtitleCommand = new NavigationCommand<ListPage>(() => new SubtitleListPageViewModel());
SeekBackwardCommand = new Command(async () => await Seek(-_seekUnit));
SeekForwardCommand = new Command(async () => await Seek(_seekUnit));
}
public MainPageViewModel()
{
FileCommand = new NavigationCommand <ListPage>(() => new MediaListPageViewModel());
StreamCommand = new NavigationCommand <InputUrlPage>();
}
public InputUrlPageViewModel()
{
OpenCommand = new NavigationCommand <PlayPage>(() => new PlayPageViewModel(UrlText),
() => !string.IsNullOrEmpty(UrlText));
}
