// This method is invoked when the application has loaded and is ready to run. In this
// method you should instantiate the window, load the UI into it and then make the window
// visible.
public override bool FinishedLaunching(UIApplication app, NSDictionary options)
{
window = new UIWindow(UIScreen.MainScreen.Bounds);
// create and initialize a UICollectionViewFlowLayout
layout = new UICollectionViewFlowLayout()
{
HeaderReferenceSize = new SizeF(UIScreen.MainScreen.Bounds.Width, 50),
SectionInset = new UIEdgeInsets(10, 5, 10, 5),
MinimumInteritemSpacing = 5,
MinimumLineSpacing = 5,
ItemSize = new System.Drawing.SizeF(100, 100)
};
// create a CollectionViewController (which is a UICollectionViewController) with a layout
viewController = new CollectionViewController(layout);
// toggle the layout in response to a swipe left
swipeLeft = new UISwipeGestureRecognizer(g => {
if (customLayout == null)
{
// create and initialize a CustomLayout
customLayout = new CustomLayout(viewController.Speakers.Count)
{
ItemSize = new SizeF(100, 100)
};
}
if (viewController.CollectionView.CollectionViewLayout is UICollectionViewFlowLayout)
{
// switch to a custom layout
viewController.CollectionView.SetCollectionViewLayout(customLayout, true);
}
else
{
// invalidate the flow layout in case the orientation changed
layout.InvalidateLayout();
// switch to a flow layout
viewController.CollectionView.SetCollectionViewLayout(layout, true);
// scroll to the top
viewController.CollectionView.SetContentOffset(new PointF(0, 0), false);
}
})
{
Direction = UISwipeGestureRecognizerDirection.Left
};
// add the gesture recognizer to the UICollectionView
viewController.CollectionView.AddGestureRecognizer(swipeLeft);
window.RootViewController = viewController;
window.MakeKeyAndVisible();
return(true);
}
// This method is invoked when the application has loaded and is ready to run. In this
// method you should instantiate the window, load the UI into it and then make the window
// visible.
public override bool FinishedLaunching (UIApplication app, NSDictionary options)
{
window = new UIWindow (UIScreen.MainScreen.Bounds);
// create and initialize a UICollectionViewFlowLayout
layout = new UICollectionViewFlowLayout () {
HeaderReferenceSize = new SizeF (UIScreen.MainScreen.Bounds.Width, 50),
SectionInset = new UIEdgeInsets (10,5,10,5),
MinimumInteritemSpacing = 5,
MinimumLineSpacing = 5,
ItemSize = new System.Drawing.SizeF (100, 100)
};
// create a CollectionViewController (which is a UICollectionViewController) with a layout
viewController = new CollectionViewController (layout);
//TODO: Step 4b: uncomment to implement a left swipe gesture to switch between Collection View Layouts
// toggle the layout in response to a swipe left
swipeLeft = new UISwipeGestureRecognizer (g => {
if (customLayout == null) {
// create and initialize a CustomLayout
customLayout = new CustomLayout (viewController.Speakers.Count){
ItemSize = new SizeF (100, 100)
};
}
if (viewController.CollectionView.CollectionViewLayout is UICollectionViewFlowLayout) {
// switch to a custom layout
viewController.CollectionView.SetCollectionViewLayout (customLayout, true);
} else {
// invalidate the flow layout in case the orientation changed
layout.InvalidateLayout();
// switch to a flow layout
viewController.CollectionView.SetCollectionViewLayout (layout, true);
// scroll to the top
viewController.CollectionView.SetContentOffset(new PointF(0,0), false);
}
}){
Direction = UISwipeGestureRecognizerDirection.Left
};
// add the gesture recognizer to the UICollectionView
viewController.CollectionView.AddGestureRecognizer (swipeLeft);
window.RootViewController = viewController;
window.MakeKeyAndVisible ();
return true;
}
