public Ticker createTicker(TickerCallback onTick)
{
this._tickers = this._tickers ?? new HashSet<Ticker>();
var result = new _WidgetTicker<T>(onTick, this, debugLabel: "created by " + this);
this._tickers.Add(result);
return result;
}
public Ticker createTicker(TickerCallback onTick)
{
_tickers = _tickers ?? new HashSet <Ticker>();
var result = new _WidgetTicker <T>(onTick, this,
debugLabel: foundation_.kDebugMode ? "created by " + this : null);
_tickers.Add(result);
return(result);
}
public Ticker createTicker(TickerCallback onTick)
{
this._tickers = this._tickers ?? new HashSet <Ticker>();
Func <string> debugLabel = null;
D.assert(() => {
debugLabel = () => "created by " + this;
return(true);
});
var result = new _WidgetTicker <T>(onTick, this, debugLabel: debugLabel);
this._tickers.Add(result);
return(result);
}
internal void _removeTicker(_WidgetTicker<T> ticker)
{
D.assert(this._tickers != null);
D.assert(this._tickers.Contains(ticker));
this._tickers.Remove(ticker);
}