// 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
flowLayout = new UICollectionViewFlowLayout (){
SectionInset = new UIEdgeInsets (25,5,10,5),
MinimumInteritemSpacing = 5,
MinimumLineSpacing = 5,
ItemSize = new CGSize (100, 100)
};
circleLayout = new CircleLayout (Monkeys.Instance.Count){
ItemSize = new CGSize (100, 100)
};
imagesController = new ImagesCollectionViewController (flowLayout);
nfloat sf = 0.4f;
UICollectionViewTransitionLayout trLayout = null;
UICollectionViewLayout nextLayout;
pinch = new UIPinchGestureRecognizer (g => {
var progress = Math.Abs(1.0f - g.Scale)/sf;
if(trLayout == null){
if(imagesController.CollectionView.CollectionViewLayout is CircleLayout)
nextLayout = flowLayout;
else
nextLayout = circleLayout;
trLayout = imagesController.CollectionView.StartInteractiveTransition (nextLayout, (completed, finished) => {
Console.WriteLine ("transition completed");
trLayout = null;
});
}
trLayout.TransitionProgress = (nfloat)progress;
imagesController.CollectionView.CollectionViewLayout.InvalidateLayout ();
if(g.State == UIGestureRecognizerState.Ended){
if (trLayout.TransitionProgress > 0.5f)
imagesController.CollectionView.FinishInteractiveTransition ();
else
imagesController.CollectionView.CancelInteractiveTransition ();
}
});
imagesController.CollectionView.AddGestureRecognizer (pinch);
window.RootViewController = imagesController;
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
flowLayout = new UICollectionViewFlowLayout()
{
SectionInset = new UIEdgeInsets(25, 5, 10, 5),
MinimumInteritemSpacing = 5,
MinimumLineSpacing = 5,
ItemSize = new CGSize(100, 100)
};
circleLayout = new CircleLayout(Monkeys.Instance.Count)
{
ItemSize = new CGSize(100, 100)
};
imagesController = new ImagesCollectionViewController(flowLayout);
nfloat sf = 0.4f;
UICollectionViewTransitionLayout trLayout = null;
UICollectionViewLayout nextLayout;
pinch = new UIPinchGestureRecognizer(g => {
var progress = Math.Abs(1.0f - g.Scale) / sf;
if (trLayout == null)
{
if (imagesController.CollectionView.CollectionViewLayout is CircleLayout)
{
nextLayout = flowLayout;
}
else
{
nextLayout = circleLayout;
}
trLayout = imagesController.CollectionView.StartInteractiveTransition(nextLayout, (completed, finished) => {
Console.WriteLine("transition completed");
trLayout = null;
});
}
trLayout.TransitionProgress = (nfloat)progress;
imagesController.CollectionView.CollectionViewLayout.InvalidateLayout();
if (g.State == UIGestureRecognizerState.Ended)
{
if (trLayout.TransitionProgress > 0.5f)
{
imagesController.CollectionView.FinishInteractiveTransition();
}
else
{
imagesController.CollectionView.CancelInteractiveTransition();
}
}
});
imagesController.CollectionView.AddGestureRecognizer(pinch);
window.RootViewController = imagesController;
window.MakeKeyAndVisible();
return(true);
}