public ItemsPage() { if (starting) { var pathHelper = DependencyService.Get <IPathService>(); pathHelper.ExecuteApplication(Defines.WheelLogPackage); starting = false; } InitializeComponent(); SizeChanged += OnSizeChanged; OpenContextMenuCommand = new Command((e) => { pathHelper.ExecuteApplication(Defines.WheelLogPackage); }); Device.StartTimer(TimeSpan.FromSeconds(1), OnTimerTick); }