private void CreateSwipeGesture()
{
swipeGesture = new SwipeGestureRecognizer();
swipeGesture.Direction = SwipeGestureRecognizerDirection.Any;
swipeGesture.Updated += SwipeGestureCallback;
FingerScript.AddGesture(swipeGesture);
}
public void UpdateGestureRecognizers(List<IGestureRecognizer> gestureRecognizers)
{
this.tapGestureRecognizer = (TapGestureRecognizer)gestureRecognizers.FirstOrDefault(s => s is TapGestureRecognizer);
this.longPressGestureRecognizer = (LongPressGestureRecognizer)gestureRecognizers.FirstOrDefault(s => s is LongPressGestureRecognizer);
this.panGestureRecognizer = (PanGestureRecognizer)gestureRecognizers.FirstOrDefault(s => s is PanGestureRecognizer);
this.pinchGestureRecognizer = (PinchGestureRecognizer)gestureRecognizers.FirstOrDefault(s => s is PinchGestureRecognizer);
this.rotationGestureRecognizer = (RotationGestureRecognizer)gestureRecognizers.FirstOrDefault(s => s is RotationGestureRecognizer);
this.swipeGestureRecognizer = (SwipeGestureRecognizer)gestureRecognizers.FirstOrDefault(s => s is SwipeGestureRecognizer);
}
void OnSwipe( SwipeGestureRecognizer source )
{
// make sure we started the swipe gesture on our swipe object
GameObject selection = PickObject( source.StartPosition );
if( selection == sphereObject )
{
UI.StatusText = "Swiped " + source.Direction + " with velocity: " + source.Velocity;
SwipeParticlesEmitter emitter = selection.GetComponentInChildren<SwipeParticlesEmitter>();
if( emitter )
emitter.Emit( source.Direction, source.Velocity );
}
}
protected override void OnElementChanged(ElementChangedEventArgs<Xamarin.Forms.View> e)
{
base.OnElementChanged(e);
var viewGesture = (ViewGestures)Element;
var tapGestureRecognizer = new TapGestureRecognizer()
{
OnTouchesBegan = ((x, y) => viewGesture.OnTouchBegan(x, y)),
OnTouchesEnded = (() => viewGesture.OnTouchEnded()),
OnTap = ((x, y) => viewGesture.OnTap(x, y)),
};
var longPressGestureRecognizer = new LongPressGestureRecognizer(() => viewGesture.OnLongTap())
{
OnTouchesBegan = ((x, y) => viewGesture.OnTouchBegan(x, y)),
OnTouchesEnded = (() => viewGesture.OnTouchEnded()),
};
#region SwipeGestureRecognizer
var swipeLeftGestureRecognizer = new SwipeGestureRecognizer(() => viewGesture.OnSwipeLeft())
{
Direction = UISwipeGestureRecognizerDirection.Left,
OnTouchesBegan = ((x, y) => viewGesture.OnTouchBegan(x, y)),
OnTouchesEnded = (() => viewGesture.OnTouchEnded()),
};
var swipeRightGestureRecognizer = new SwipeGestureRecognizer(() => viewGesture.OnSwipeRight())
{
Direction = UISwipeGestureRecognizerDirection.Right,
OnTouchesBegan = ((x, y) => viewGesture.OnTouchBegan(x, y)),
OnTouchesEnded = (() => viewGesture.OnTouchEnded()),
};
var swipeUpGestureRecognizer = new SwipeGestureRecognizer(() => viewGesture.OnSwipeUp())
{
Direction = UISwipeGestureRecognizerDirection.Up,
OnTouchesBegan = ((x, y) => viewGesture.OnTouchBegan(x, y)),
OnTouchesEnded = (() => viewGesture.OnTouchEnded()),
};
var swipeDownGestureRecognizer = new SwipeGestureRecognizer(() => viewGesture.OnSwipeDown())
{
Direction = UISwipeGestureRecognizerDirection.Down,
OnTouchesBegan = ((x, y) => viewGesture.OnTouchBegan(x, y)),
OnTouchesEnded = (() => viewGesture.OnTouchEnded()),
};
#endregion
#region DragGestureRecognizer
var dragGestureRecognizer = new DragGestureRecognizer()
{
OnTouchesBegan = ((x, y) => viewGesture.OnTouchBegan(x, y)),
OnTouchesEnded = (() => viewGesture.OnTouchEnded()),
OnDrag = ((x, y) => viewGesture.OnDrag(x, y)),
};
//from iOS Developer Library (Gesture Recognizers)
//...For your view to recognize both swipes and pans, you want the swipe gesture recognizer to analyze the touch event before the pan gesture recognizer does...
if ((viewGesture.SupportGestures & ViewGestures.GestureType.gtSwipeLeft) != 0)
dragGestureRecognizer.RequireGestureRecognizerToFail(swipeLeftGestureRecognizer);
if ((viewGesture.SupportGestures & ViewGestures.GestureType.gtSwipeRight) != 0)
dragGestureRecognizer.RequireGestureRecognizerToFail(swipeRightGestureRecognizer);
if ((viewGesture.SupportGestures & ViewGestures.GestureType.gtSwipeUp) != 0)
dragGestureRecognizer.RequireGestureRecognizerToFail(swipeUpGestureRecognizer);
if ((viewGesture.SupportGestures & ViewGestures.GestureType.gtSwipeDown) != 0)
dragGestureRecognizer.RequireGestureRecognizerToFail(swipeDownGestureRecognizer);
#endregion
if (e.NewElement == null)
{
if (tapGestureRecognizer != null)
this.RemoveGestureRecognizer(tapGestureRecognizer);
if (longPressGestureRecognizer != null)
this.RemoveGestureRecognizer(longPressGestureRecognizer);
if (swipeLeftGestureRecognizer != null)
this.RemoveGestureRecognizer(swipeLeftGestureRecognizer);
if (swipeRightGestureRecognizer != null)
this.RemoveGestureRecognizer(swipeRightGestureRecognizer);
if (swipeUpGestureRecognizer != null)
this.RemoveGestureRecognizer(swipeUpGestureRecognizer);
if (swipeDownGestureRecognizer != null)
this.RemoveGestureRecognizer(swipeDownGestureRecognizer);
if (dragGestureRecognizer != null)
this.RemoveGestureRecognizer(dragGestureRecognizer);
}
if (e.OldElement == null)
{
this.AddGestureRecognizer(tapGestureRecognizer);
this.AddGestureRecognizer(longPressGestureRecognizer);
this.AddGestureRecognizer(swipeLeftGestureRecognizer);
this.AddGestureRecognizer(swipeRightGestureRecognizer);
this.AddGestureRecognizer(swipeUpGestureRecognizer);
this.AddGestureRecognizer(swipeDownGestureRecognizer);
this.AddGestureRecognizer(dragGestureRecognizer);
}
}
public iOS_SwipeGestureEventArgs(SwipeGestureRecognizer gestureRecognizer, UISwipeGestureRecognizer platformGestureRecognizer)
{
this.gestureRecognizer = gestureRecognizer;
this.platformGestureRecognizer = platformGestureRecognizer;
}
public Android_SwipeGestureEventArgs(SwipeGestureRecognizer gestureRecognizer, Android_GestureListener androidGestureListener)
{
this.gestureRecognizer = gestureRecognizer;
this.androidGestureListener = androidGestureListener;
}
