/// <inheritdoc/>
public void RemoveSource(IBackButtonSource source)
{
source = source ?? throw new ArgumentNullException(nameof(source));
source.BackRequested -= OnBackRequested;
_sources.Remove(source);
}
/// <inheritdoc/>
public void AddSource(IBackButtonSource source)
{
source = source ?? throw new ArgumentNullException(nameof(source));
_sources.Add(source);
source.BackRequested += OnBackRequested;
}
private void OnBackRequested(IBackButtonSource sender, BackRequestedEventArgs eventArgs)
{
eventArgs.Handled = TryHandleBack();
}
