@Override public void onPackageUpdate(final Collection<IslandAppInfo> apps) {
				if (apps.size() != 1) return;		// Batch update is never triggered by user interaction.
				final IslandAppInfo app = apps.iterator().next();
				if (app.isHidden())
					scope.markOnly(SCOPE_KEY_TIP_FREEZE);		// User just froze an app, no need to show tip for app freezing.
				else if (Users.isProfileManagedByIsland(app.user) && app.getLastInfo() == null)
					scope.markOnly(SCOPE_KEY_TIP_CLONE);		// User just cloned an app, no need to show tip for app cloning.
				if (scope.isMarked(SCOPE_KEY_TIP_FREEZE) && scope.isMarked(SCOPE_KEY_TIP_CLONE))
					provider.unregisterObserver(this);			// No more interest for package events.
			}
Helper for manipulate user guide menu

Created by Oasis on 2017/3/14.
mobile/src/main/java/com/oasisfeng/island/guide/UserGuide.java