/// <summary>
/// Loads the new constraint layout and adds the animation operation.
/// </summary>
private void PageTransition()
{
// Disable the See More / Hide button so we can't trigger another animation while this one is happening
// It will get re-enabled in OnTransitionEnd
seeMoreHideButton.Enabled = false;
seeMoreModeEnabled = !seeMoreModeEnabled;
if (seeMoreModeEnabled)
{
// Current: Results
// Transition To: See More
// The original x-ray view (that only appears in See More) is hidden to begin with so that
// TalkBack doesn't narrate its elements
xRayDisplayViewOriginal.Visibility = ViewStates.Visible;
Transition transition = new AutoTransition();
transition.AddListener(this); // This listener will hide the conditionListSecondary when the transition is done (and re-enable the See More / Hide button)
TransitionManager.BeginDelayedTransition(root, transition);
seeMoreConstraints.ApplyTo(root);
seeMoreHideButton.SetText(Resource.String.see_all_btn_hide);
layoutManagerPrimary.ScrollEnabled = true;
xRayDisplayView.TextDisplayMode = XRayDisplayView.DisplayMode.Small;
xRayDisplayView.FilenameLabel = GetString(Resource.String.see_all_image_label_analyzed);
}
else
{
// Current: See More
// Transition To: Results
// We need a little bit of a custom transition here:
// We want to fade in the conditionListSecondary and move it at the same time
// We also want to keep the origin x-ray view visible during the transition then hide it afterwards
// This transition takes care of the fade in + move for all elements
TransitionSet mainTransitions = new TransitionSet();
mainTransitions.SetOrdering(TransitionSet.OrderingTogether);
mainTransitions.AddTransition(new ChangeBounds());
mainTransitions.AddTransition(new Fade(Fade.In));
// This transition takes care of fading out the original x-ray view
Transition fadeOut = new Fade(Fade.Out);
fadeOut.AddTarget(Resource.Id.img_xray_original);
// We can then run the two transition sequentially to make sure the fade out happens after everything else
TransitionSet transitions = new TransitionSet();
transitions.SetOrdering(TransitionSet.OrderingSequential);
transitions.AddTransition(mainTransitions);
transitions.AddTransition(fadeOut);
transitions.AddListener(this); // This listener will re-enable the See More / Hide button when the transition is done
TransitionManager.BeginDelayedTransition(root, transitions);
resultsConstraints.ApplyTo(root);
seeMoreHideButton.SetText(Resource.String.results_btn_see_more);
// Need to reset the scroll of conditionListPrimary to the top
layoutManagerPrimary.ScrollToPositionWithOffset(0, 0);
layoutManagerPrimary.ScrollEnabled = false;
xRayDisplayView.TextDisplayMode = XRayDisplayView.DisplayMode.Large;
xRayDisplayView.FilenameLabel = GetString(Resource.String.results_image_label);
}
}
