public DroidAnimator ScaleTo(float[] scales, float[] scaleDurations, double?durationSeconds, double?delaySeconds, AnimationInterpolation?interpolation)
{
return(base.ExecuteFunction <DroidAnimator>("ScaleTo", delegate()
{
PropertyValuesHolder propX = PropertyValuesHolder.OfFloat("scaleX", scales);
PropertyValuesHolder propY = PropertyValuesHolder.OfFloat("scaleY", scales);
if (scaleDurations != null && (scaleDurations.Length > 0))
{
int keyFrameCount = scaleDurations.Length;
if (scales.Length < keyFrameCount)
{
keyFrameCount -= keyFrameCount - scales.Length;
}
Keyframe[] keyFrames = new Keyframe[keyFrameCount];
for (int i = 0; i < keyFrameCount; i++)
{
keyFrames[i] = Keyframe.OfFloat(scaleDurations[i], scales[i]);
}
propX.SetKeyframes(keyFrames);
propY.SetKeyframes(keyFrames);
}
ObjectAnimator fadeAnimator = ObjectAnimator.OfPropertyValuesHolder(this.TargetView, propX, propY);
SetDefaultsFor(fadeAnimator, durationSeconds, delaySeconds, interpolation);
_animators.Add(fadeAnimator);
return this;
}));
}
private void CreateAnimation()
{
if (animation == null)
{
ShapeHolder ball;
ball = balls[0];
var yBouncer = ObjectAnimator.OfFloat(ball, "y", ball.Y, Height - BallSize);
yBouncer.SetDuration(Duration);
yBouncer.SetInterpolator(new CycleInterpolator(2));
yBouncer.Update += delegate
{
Invalidate();
};
ball = balls[1];
var pvhY = PropertyValuesHolder.OfFloat("y", ball.Y, Height - BallSize);
var pvhAlpha = PropertyValuesHolder.OfFloat("alpha", 1.0f, 0f);
var yAlphaBouncer = ObjectAnimator.OfPropertyValuesHolder(ball, pvhY, pvhAlpha);
yAlphaBouncer.SetDuration(Duration / 2);
yAlphaBouncer.SetInterpolator(new AccelerateInterpolator());
yAlphaBouncer.RepeatCount = 1;
yAlphaBouncer.RepeatMode = ValueAnimatorRepeatMode.Reverse;
ball = balls[2];
var pvhW = PropertyValuesHolder.OfFloat("width", ball.Width, ball.Width * 2);
var pvhH = PropertyValuesHolder.OfFloat("height", ball.Height, ball.Height * 2);
var pvTX = PropertyValuesHolder.OfFloat("x", ball.X, ball.X - BallSize / 2f);
var pvTY = PropertyValuesHolder.OfFloat("y", ball.Y, ball.Y - BallSize / 2f);
var whxyBouncer = ObjectAnimator.OfPropertyValuesHolder(ball, pvhW, pvhH, pvTX, pvTY);
whxyBouncer.SetDuration(Duration / 2);
whxyBouncer.RepeatCount = 1;
whxyBouncer.RepeatMode = ValueAnimatorRepeatMode.Reverse;
ball = balls[3];
pvhY = PropertyValuesHolder.OfFloat("y", ball.Y, Height - BallSize);
var ballX = ball.X;
var kf0 = Keyframe.OfFloat(0f, ballX);
var kf1 = Keyframe.OfFloat(.5f, ballX + 100f);
var kf2 = Keyframe.OfFloat(1f, ballX + 50f);
var pvhX = PropertyValuesHolder.OfKeyframe("x", kf0, kf1, kf2);
var yxBouncer = ObjectAnimator.OfPropertyValuesHolder(ball, pvhY, pvhX);
yxBouncer.SetDuration(Duration / 2);
yxBouncer.RepeatCount = 1;
yxBouncer.RepeatMode = ValueAnimatorRepeatMode.Reverse;
animation = new AnimatorSet();
animation.PlayTogether(yBouncer, yAlphaBouncer, whxyBouncer, yxBouncer);
}
}
public DroidAnimator TransitionBackgroundColor(int[] colors, float[] colorTransformDurations, double?durationSeconds, double?delaySeconds, AnimationInterpolation?interpolation)
{
return(base.ExecuteFunction <DroidAnimator>("BackgroundColorValue", delegate()
{
PropertyValuesHolder colorValues = PropertyValuesHolder.OfInt("backgroundColor", colors);
if (colorTransformDurations == null || colorTransformDurations.Length == 0)
{
colorTransformDurations = new float[colors.Length];
for (int i = 0; i < colors.Length; i++)
{
colorTransformDurations[i] = i / colors.Length;
}
}
if (colorTransformDurations != null && colorTransformDurations.Length > 0)
{
int keyFrameCount = colorTransformDurations.Length;
if (colors.Length < keyFrameCount)
{
keyFrameCount -= (keyFrameCount - colors.Length);
}
Keyframe[] keyFrames = new Keyframe[keyFrameCount];
for (int i = 0; i < keyFrameCount; i++)
{
keyFrames[i] = Keyframe.OfFloat(colorTransformDurations[i], colors[i]);
}
colorValues.SetKeyframes(keyFrames);
}
ValueAnimator valueAnimator = ValueAnimator.OfPropertyValuesHolder(colorValues);
valueAnimator.SetEvaluator(new ArgbEvaluator());
SetDefaultsFor(valueAnimator, durationSeconds, delaySeconds, interpolation);
valueAnimator.Update += colorValueAnimator_Update;
_animators.Add(valueAnimator);
return this;
}));
}
