public override CAAnimation AnimationForSeries(TKChart chart, TKChartSeries series, TKChartSeriesRenderState state, CGRect rect)
{
double duration = 0.5;
List <CAAnimation> animations = new List <CAAnimation> ();
for (int i = 0; i < (int)state.Points.Count; i++)
{
string keyPath = string.Format("seriesRenderStates.{0}.points.{1}.y", series.Index, i);
TKChartVisualPoint point = (TKChartVisualPoint)state.Points.ObjectAtIndex((uint)i);
double oldY = rect.Height;
double half = oldY + (point.Y - oldY) / 2.0;
CAKeyFrameAnimation a = (CAKeyFrameAnimation)CAKeyFrameAnimation.GetFromKeyPath(keyPath);
a.KeyTimes = new NSNumber[] { new NSNumber(0), new NSNumber(0), new NSNumber(1) };
a.Values = new NSObject[] { new NSNumber(oldY), new NSNumber(half), new NSNumber(point.Y) };
a.Duration = duration;
a.TimingFunction = CAMediaTimingFunction.FromName(CAMediaTimingFunction.EaseOut);
animations.Add(a);
}
CAAnimationGroup group = new CAAnimationGroup();
group.Duration = duration;
group.Animations = animations.ToArray();
return(group);
}
public void applyGravity(object sender, EventArgs e)
{
animator = new UIDynamicAnimator(chart.PlotView);
TKChartVisualPoint[] points = chart.VisualPointsForSeries(chart.Series [0]);
for (int i = 0; i < points.Length; i++)
{
TKChartVisualPoint point = points [i];
CGPoint center = originalValues [i];
if (point.Animator != null)
{
point.Animator.RemoveAllBehaviors();
point.Animator = null;
}
point.Center = center;
}
UICollisionBehavior collision = new UICollisionBehavior(points);
collision.TranslatesReferenceBoundsIntoBoundary = true;
UIGravityBehavior gravity = new UIGravityBehavior(points);
gravity.GravityDirection = new CGVector(0.0f, 2.0f);
UIDynamicItemBehavior dynamic = new UIDynamicItemBehavior(points);
dynamic.Elasticity = 0.5f;
animator.AddBehavior(dynamic);
animator.AddBehavior(gravity);
animator.AddBehavior(collision);
}
public override void ViewDidAppear(bool animated)
{
base.ViewDidAppear(animated);
TKChartVisualPoint[] points = chart.VisualPointsForSeries(chart.Series [0]);
originalValues = new List <CGPoint> ();
foreach (TKChartVisualPoint p in points)
{
originalValues.Add(p.CGPoint);
}
TKChartVisualPoint point = points[4];
UISnapBehavior snap = new UISnapBehavior(point, point.Center);
snap.Damping = 0.2f;
UIPushBehavior push = new UIPushBehavior(new IUIDynamicItem[] { point }, UIPushBehaviorMode.Instantaneous);
push.PushDirection = new CGVector(0.0f, -1.0f);
push.Magnitude = 0.003f;
UIDynamicAnimator animator = new UIDynamicAnimator();
animator.AddBehavior(snap);
animator.AddBehavior(push);
point.Animator = animator;
}
public override CAAnimation AnimationForSeries(TKChart chart, TKChartSeries series, TKChartSeriesRenderState state, CGRect rect)
{
double duration = 0;
List <CAAnimation> animations = new List <CAAnimation> ();
for (int i = 0; i < (int)state.Points.Count; i++)
{
TKChartVisualPoint point = (TKChartVisualPoint)state.Points.ObjectAtIndex((uint)i);
if (Grow)
{
string keyPath = string.Format("seriesRenderStates.{0}.points.{1}.x", series.Index, i);
CABasicAnimation animation = (CABasicAnimation)CABasicAnimation.FromKeyPath(keyPath);
animation.Duration = 0.1 * (i + 0.2);
animation.From = new NSNumber(0);
animation.To = new NSNumber(point.X);
animation.TimingFunction = CAMediaTimingFunction.FromName(CAMediaTimingFunction.EaseOut);
animations.Add(animation);
duration = animation.Duration;
}
else
{
string keyPath = string.Format("seriesRenderStates.{0}.points.{1}.y", series.Index, i);
nfloat oldY = rect.Height;
if (i > 0)
{
CAKeyFrameAnimation animation = (CAKeyFrameAnimation)CAKeyFrameAnimation.GetFromKeyPath(keyPath);
animation.Duration = 0.1 * (i + 1);
animation.Values = new NSNumber[] { new NSNumber(oldY), new NSNumber(oldY), new NSNumber(point.Y) };
animation.KeyTimes = new NSNumber[] { new NSNumber(0), new NSNumber(i / (i + 1.0)), new NSNumber(1) };
animation.TimingFunction = CAMediaTimingFunction.FromName(CAMediaTimingFunction.EaseOut);
animations.Add(animation);
duration = animation.Duration;
}
else
{
CABasicAnimation animation = (CABasicAnimation)CABasicAnimation.FromKeyPath(keyPath);
animation.From = new NSNumber(oldY);
animation.To = new NSNumber(point.Y);
animation.Duration = 0.1f;
animations.Add(animation);
}
}
}
CAAnimationGroup group = new CAAnimationGroup();
group.Duration = duration;
group.Animations = animations.ToArray();
return(group);
}
public void applyGravity()
{
if (firstTime)
{
firstTime = false;
TKChartVisualPoint[] points1 = chart.VisualPointsForSeries(chart.Series [0]);
originalValues = new List <CGPoint> ();
foreach (TKChartVisualPoint p in points1)
{
originalValues.Add(p.CGPoint);
}
TKChartVisualPoint point1 = points1 [4];
originalLocation = point1.Center;
}
// >> chart-anim-gravity-cs
animator = new UIDynamicAnimator(chart.PlotView);
TKChartVisualPoint[] points = chart.VisualPointsForSeries(chart.Series [0]);
TKChartVisualPoint point = points [4];
for (int i = 0; i < originalValues.Count; i++)
{
TKChartVisualPoint pt = points [i];
if (pt.Animator != null)
{
pt.Animator.RemoveAllBehaviors();
pt.Animator = null;
}
pt.Center = ((CGPoint)originalValues[i]);
}
point.Center = new CGPoint(originalLocation.X, 0);
UICollisionBehavior collision = new UICollisionBehavior(points);
collision.TranslatesReferenceBoundsIntoBoundary = true;
UIGravityBehavior gravity = new UIGravityBehavior(points);
gravity.GravityDirection = new CGVector(0.0f, 2.0f);
UIDynamicItemBehavior dynamic = new UIDynamicItemBehavior(points);
dynamic.Elasticity = 0.5f;
animator.AddBehavior(dynamic);
animator.AddBehavior(gravity);
animator.AddBehavior(collision);
// << chart-anim-gravity-cs
}
public override void TouchesBegan(NSSet touches, UIEvent evt)
{
base.TouchesBegan(touches, evt);
UITouch touch = (UITouch)touches.AnyObject;
CGPoint touchPoint = touch.LocationInView(chart.PlotView);
TKChartSelectionInfo hitTestInfo = chart.HitTestForPoint(touchPoint);
if (hitTestInfo != null)
{
selectedPoint = chart.VisualPointForSeries(hitTestInfo.Series, hitTestInfo.DataPointIndex);
originalLocation = touchPoint;
if (selectedPoint != null)
{
selectedPoint.Animator = null;
originalPosition = selectedPoint.Center;
}
}
}
public override void DrawInContext(CGContext context, CGRect bounds, TKChartVisualPoint visualPoint)
{
UIGraphics.PushContext (context);
TKFill fill = this.Style.Fill;
TKStroke stroke = new TKStroke (UIColor.Black);
TKBalloonShape shape = new TKBalloonShape (TKBalloonShapeArrowPosition.Bottom, bounds.Size);
shape.DrawInContext (context, new CGPoint (bounds.GetMidX (), bounds.GetMidY ()), new TKDrawing[]{ fill, stroke });
CGRect textRect = new CGRect (bounds.Left, bounds.Top - this.Style.Insets.Top, bounds.Size.Width, bounds.Size.Height + this.Style.Insets.Bottom);
NSMutableParagraphStyle paragraphStyle = new NSMutableParagraphStyle ();
paragraphStyle.Alignment = this.Style.TextAlignment;
NSDictionary attributes = new NSDictionary (UIStringAttributeKey.Font, UIFont.SystemFontOfSize (18),
UIStringAttributeKey.ForegroundColor, this.Style.TextColor,
UIStringAttributeKey.ParagraphStyle, paragraphStyle);
NSString text = new NSString (this.Text);
text.WeakDrawString (textRect, NSStringDrawingOptions.TruncatesLastVisibleLine | NSStringDrawingOptions.UsesLineFragmentOrigin, attributes, null);
UIGraphics.PopContext ();
}
public override void DrawInContext(CGContext context, CGRect bounds, TKChartVisualPoint visualPoint, UIColor color)
{
UIGraphics.PushContext(context);
TKFill fill = this.Style.Fill;
TKStroke stroke = new TKStroke(UIColor.Black);
TKBalloonShape shape = new TKBalloonShape(TKBalloonShapeArrowPosition.Bottom, bounds.Size);
shape.DrawInContext(context, new CGPoint(bounds.GetMidX(), bounds.GetMidY()), new TKDrawing[] { fill, stroke });
CGRect textRect = new CGRect(bounds.Left, bounds.Top - this.Style.Insets.Top, bounds.Size.Width, bounds.Size.Height + this.Style.Insets.Bottom);
NSMutableParagraphStyle paragraphStyle = new NSMutableParagraphStyle();
paragraphStyle.Alignment = this.Style.TextAlignment;
NSDictionary attributes = new NSDictionary(UIStringAttributeKey.Font, UIFont.SystemFontOfSize(16),
UIStringAttributeKey.ForegroundColor, this.Style.TextColor,
UIStringAttributeKey.ParagraphStyle, paragraphStyle);
NSString text = new NSString(this.Text);
text.WeakDrawString(textRect, NSStringDrawingOptions.TruncatesLastVisibleLine | NSStringDrawingOptions.UsesLineFragmentOrigin, attributes, null);
UIGraphics.PopContext();
}
public override void TouchesBegan (NSSet touches, UIEvent evt)
{
base.TouchesBegan (touches, evt);
UITouch touch = (UITouch)touches.AnyObject;
CGPoint touchPoint = touch.LocationInView(chart.PlotView);
TKChartSelectionInfo hitTestInfo = chart.HitTestForPoint(touchPoint);
if (hitTestInfo != null) {
selectedPoint = chart.VisualPointForSeries (hitTestInfo.Series, hitTestInfo.DataPointIndex);
originalLocation = touchPoint;
if (selectedPoint != null) {
selectedPoint.Animator = null;
originalPosition = selectedPoint.Center;
}
}
}