public override void ViewDidLoad()
{
base.ViewDidLoad();
_tapGesture = new UITapGestureRecognizer();
_tapGesture.ShouldReceiveTouch = (r, t) => t.TapCount == 1;
_tapGesture.ShouldRecognizeSimultaneously = (a, b) => true;
_tapGesture.ShouldRequireFailureOf = (a, b) =>
{
var targetTap = b as UITapGestureRecognizer;
if (targetTap != null)
{
return(targetTap.NumberOfTapsRequired == 2);
}
return(false);
};
Web.AddGestureRecognizer(_tapGesture);
_tapGesture.AddTarget(() =>
{
_fullScreen = !_fullScreen;
UIApplication.SharedApplication.SetStatusBarHidden(_fullScreen, UIStatusBarAnimation.Slide);
NavigationController.SetNavigationBarHidden(_fullScreen, true);
NavigationController.SetToolbarHidden(_fullScreen, true);
});
ViewModel.WhenAnyValue(x => x.Theme)
.Select(x => new { Theme = x, ViewModel.SourceItem })
.Skip(1)
.Where(x => x != null && x.SourceItem != null && !x.SourceItem.IsBinary)
.Subscribe(x => LoadContent(x.SourceItem.FilePath));
ViewModel.WhenAnyValue(x => x.SourceItem)
.Where(x => x != null)
.Subscribe(x =>
{
if (x.IsBinary)
{
LoadFile(x.FilePath);
}
else
{
LoadContent(x.FilePath);
}
});
ViewModel.WhenAnyObservable(x => x.NextItemCommand.CanExecuteObservable, x => x.PreviousItemCommand.CanExecuteObservable)
.Where(x => x)
.Subscribe(_ =>
{
var previousButton = new UIBarButtonItem(Xamarin.Utilities.Images.Images.BackChevron,
UIBarButtonItemStyle.Plain, (s, e) => ViewModel.PreviousItemCommand.ExecuteIfCan());
previousButton.EnableIfExecutable(ViewModel.PreviousItemCommand.CanExecuteObservable);
var nextButton = new UIBarButtonItem(Xamarin.Utilities.Images.Images.ForwardChevron,
UIBarButtonItemStyle.Plain, (s, e) => ViewModel.NextItemCommand.ExecuteIfCan());
nextButton.EnableIfExecutable(ViewModel.NextItemCommand.CanExecuteObservable);
ToolbarItems = new []
{
new UIBarButtonItem(UIBarButtonSystemItem.FlexibleSpace),
previousButton,
new UIBarButtonItem(UIBarButtonSystemItem.FixedSpace)
{
Width = 80f
},
nextButton,
new UIBarButtonItem(UIBarButtonSystemItem.FlexibleSpace),
};
NavigationController.SetToolbarHidden(false, true);
});
}