public static ColorAnimationUsingKeyFrames BlinkAnimation(Color startColor)
{
var toRed = new DiscreteColorKeyFrame
{
KeyTime = KeyTime.FromTimeSpan(TimeSpan.FromMilliseconds(100)),
Value = Colors.Red
};
var keepRed = new DiscreteColorKeyFrame
{
KeyTime = KeyTime.FromTimeSpan(TimeSpan.FromMilliseconds(500)),
Value = Colors.Red
};
var back = new LinearColorKeyFrame
{
KeyTime = KeyTime.FromTimeSpan(TimeSpan.FromMilliseconds(1500)),
Value = startColor
};
var colorAnimationUsingKeyFrames = new ColorAnimationUsingKeyFrames();
ColorKeyFrameCollection colorKeyFrameCollection = colorAnimationUsingKeyFrames.KeyFrames;
colorKeyFrameCollection.Add(toRed);
colorKeyFrameCollection.Add(keepRed);
colorKeyFrameCollection.Add(back);
return(colorAnimationUsingKeyFrames);
}
public static ColorAnimationUsingKeyFrames FreeAnimation(Color startColor)
{
// mutued from XAML example at https://docs.microsoft.com/en-us/uwp/api/Windows.UI.Xaml.Media.Animation.ColorAnimation
var linearColorKeyFrame = new LinearColorKeyFrame
{
KeyTime = KeyTime.FromTimeSpan(TimeSpan.FromMilliseconds(2000)),
Value = Colors.Red
};
var discreteColorKeyFrame = new DiscreteColorKeyFrame
{
KeyTime = KeyTime.FromTimeSpan(TimeSpan.FromMilliseconds(2500)),
Value = Colors.Yellow
};
var splineColorKeyFrame = new SplineColorKeyFrame
{
KeyTime = KeyTime.FromTimeSpan(TimeSpan.FromMilliseconds(4500)),
Value = startColor,
KeySpline = new KeySpline {
ControlPoint1 = new Point(0.6, 0.0), ControlPoint2 = new Point(0.9, 0.0)
}
};
var colorAnimationUsingKeyFrames = new ColorAnimationUsingKeyFrames();
ColorKeyFrameCollection colorKeyFrameCollection = colorAnimationUsingKeyFrames.KeyFrames;
colorKeyFrameCollection.Add(linearColorKeyFrame);
colorKeyFrameCollection.Add(discreteColorKeyFrame);
colorKeyFrameCollection.Add(splineColorKeyFrame);
return(colorAnimationUsingKeyFrames);
}
public static Timeline EaseAnimation(Color startColor)
{
// docs https://docs.microsoft.com/en-us/windows/uwp/graphics/key-frame-and-easing-function-animations#easing-functions
var toRed = new EasingColorKeyFrame
{
KeyTime = KeyTime.FromTimeSpan(TimeSpan.FromMilliseconds(500)),
Value = Colors.Red,
EasingFunction = new BounceEase {
Bounces = 1, EasingMode = EasingMode.EaseIn
}
};
var back = new EasingColorKeyFrame
{
KeyTime = KeyTime.FromTimeSpan(TimeSpan.FromMilliseconds(2000)),
Value = startColor,
EasingFunction = new SineEase {
EasingMode = EasingMode.EaseIn
}
};
var colorAnimationUsingKeyFrames = new ColorAnimationUsingKeyFrames();
ColorKeyFrameCollection colorKeyFrameCollection = colorAnimationUsingKeyFrames.KeyFrames;
colorKeyFrameCollection.Add(toRed);
colorKeyFrameCollection.Add(back);
return(colorAnimationUsingKeyFrames);
}
private void BeginColorAnimation(ref TextBlock txt, Color c0, Color c1, Color c2)
{
SolidColorBrush brushSC = new SolidColorBrush();
ColorAnimationUsingKeyFrames caKeyFrames = new ColorAnimationUsingKeyFrames();
ColorKeyFrameCollection keyFrames0 = caKeyFrames.KeyFrames;
keyFrames0.Add(new LinearColorKeyFrame(c0, TimeSpan.FromSeconds(0)));
keyFrames0.Add(new LinearColorKeyFrame(c1, TimeSpan.FromSeconds(2)));
keyFrames0.Add(new LinearColorKeyFrame(c2, TimeSpan.FromSeconds(4)));
keyFrames0.Add(new LinearColorKeyFrame(c0, TimeSpan.FromSeconds(6)));
caKeyFrames.RepeatBehavior = RepeatBehavior.Forever;
caKeyFrames.AutoReverse = true;
brushSC.BeginAnimation(SolidColorBrush.ColorProperty, caKeyFrames, HandoffBehavior.Compose);
txt.Foreground = brushSC;
}
