public void CreateArcAnimationForKey(string key, double fromValue, double toValue, CAAnimationDelegate @delegate)
{
var _fromValue = new NSNumber(fromValue);
var _toValue = new NSNumber(toValue);
var _key = new NSString(key);
var arcAnimation = CABasicAnimation.FromKeyPath(key);
var currentAngle = _fromValue;
if (PresentationLayer != null)
{
currentAngle = (NSNumber)PresentationLayer.ValueForKey(_key);
}
arcAnimation.Duration = 1.0f;
arcAnimation.From = currentAngle;
arcAnimation.To = _toValue;
arcAnimation.Delegate = @delegate;
arcAnimation.TimingFunction = CAMediaTimingFunction.FromName(CAMediaTimingFunction.Default);
AddAnimation(arcAnimation, key);
SetValueForKey(_toValue, _key);
}
protected void Exit(bool animated, Action completionBlock)
{
base.Exit(animated);
if (!animated)
{
RemoveAllAnimations();
CATransaction.Begin();
CATransaction.DisableActions = true;
Opacity = 0;
//__weak MDCLegacyInkLayerForegroundRipple * weakSelf = self;
CATransaction.CompletionBlock = new Action(() =>
{
this.RemoveFromSuperLayer();
if (this.animationDelegate != null)
{
animationDelegate.AnimationDidStop(null, this, true);
}
});
CATransaction.Commit();
return;
}
if (Bounded)
{
ForegroundOpacityAnim.Values = new NSNumber[] { 1, 0 };
ForegroundOpacityAnim.Duration = kInkLayerForegroundBoundedOpacityExitDuration;
// Bounded ripples move slightly towards the center of the tap target. Unbounded ripples
// move to the center of the tap target.
nfloat xOffset = (nfloat)(TargetFrame.X - InkLayer?.Frame.X);
nfloat yOffset = (nfloat)(TargetFrame.Y - InkLayer?.Frame.Y);
CGPoint startPoint = new CGPoint(Point.X + xOffset, Point.Y + yOffset);
CGPoint endPoint = MDCLegacyInkLayerRectGetCenter(TargetFrame);
if (UseCustomInkCenter)
{
endPoint = new CGPoint(CustomInkCenter, CustomInkCenter);
}
endPoint = new CGPoint(endPoint.X + xOffset, endPoint.Y + yOffset);
CGPoint centerOffsetPoint = MDCLegacyInkLayerInterpolatePoint(startPoint, endPoint, 0.3f);
UIBezierPath movePath = new UIBezierPath();
movePath.MoveTo(startPoint);
movePath.AddLineTo(centerOffsetPoint);
ForegroundPositionAnim =
PositionAnimWithPath(movePath.CGPath,
duration: kInkLayerForegroundBoundedPositionExitDuration,
timingFunction: LogDecelerateEasing());
ForegroundScaleAnim.Values = new NSNumber[] { 0, 1 };
ForegroundScaleAnim.KeyTimes = new NSNumber[] { 0, 1 };
ForegroundScaleAnim.Duration = kInkLayerForegroundBoundedRadiusExitDuration;
}
else
{
NSNumber opacityVal = (NSNumber)PresentationLayer.ValueForKey((NSString)kInkLayerOpacity);
if (opacityVal == null)
{
opacityVal = NSNumber.FromFloat(0.0f);
}
nfloat adjustedDuration = kInkLayerForegroundBoundedPositionExitDuration;
nfloat normOpacityVal = opacityVal.FloatValue;
nfloat opacityDuration = normOpacityVal / 3.0f;
ForegroundOpacityAnim.Values = new NSNumber[] { opacityVal, 0 };
ForegroundOpacityAnim.Duration = opacityDuration + adjustedDuration;
NSNumber scaleVal = (NSNumber)PresentationLayer.ValueForKey((NSString)kInkLayerScale);
if (scaleVal == null)
{
scaleVal = NSNumber.FromFloat(0.0f);
}
nfloat unboundedDuration = (nfloat)Math.Sqrt(((1.0f - scaleVal.FloatValue) * Radius) /
(kInkLayerForegroundWaveTouchDownAcceleration +
kInkLayerForegroundWaveTouchUpAcceleration));
ForegroundPositionAnim.Duration = unboundedDuration + adjustedDuration;
ForegroundScaleAnim.Values = new NSNumber[] { scaleVal, 1 };
ForegroundScaleAnim.Duration = unboundedDuration + adjustedDuration;
}
ForegroundOpacityAnim.KeyTimes = new NSNumber[] { 0, 1 };
if (ForegroundOpacityAnim.Duration < ForegroundScaleAnim.Duration)
{
ForegroundScaleAnim.Delegate = this;
}
else
{
ForegroundOpacityAnim.Delegate = this;
}
ForegroundOpacityAnim.TimingFunction =
CAMediaTimingFunction.FromName(CAMediaTimingFunction.Linear);
ForegroundPositionAnim.TimingFunction = LogDecelerateEasing();
ForegroundScaleAnim.TimingFunction = LogDecelerateEasing();
CATransaction.Begin();
if (completionBlock != null)
{
CATransaction.CompletionBlock = new Action(() =>
{
if (RippleState != MDCInkRippleState.kInkRippleCancelled)
{
completionBlock();
}
});
}
AddAnimation(ForegroundOpacityAnim, kInkLayerForegroundOpacityAnim);
AddAnimation(ForegroundPositionAnim, kInkLayerForegroundPositionAnim);
AddAnimation(ForegroundScaleAnim, kInkLayerForegroundScaleAnim);
CATransaction.Commit();
}