public void SetCountAnimated (int count)
{
if (alphaAnimator != null) {
alphaAnimator.Cancel ();
alphaAnimator = null;
}
const int Duration = 300;
alphaAnimator = ObjectAnimator.OfInt (this, "alpha", 0xFF, 0);
alphaAnimator.SetDuration (Duration);
alphaAnimator.RepeatMode = ValueAnimatorRepeatMode.Reverse;
alphaAnimator.RepeatCount = 1;
alphaAnimator.AnimationRepeat += (sender, e) => {
((Animator)sender).RemoveAllListeners ();
this.count = count;
};
alphaAnimator.Start ();
}
public async void OnGlobalLayout ()
{
productImage.ViewTreeObserver.RemoveGlobalOnLayoutListener (this);
const int DeltaX = 100;
var img1 = Images.FromUrl (Product.ImageForSize (images [0], Images.ScreenWidth));
var img2 = Images.FromUrl (Product.ImageForSize (images [1], Images.ScreenWidth));
productDrawable = new KenBurnsDrawable (Color.DarkBlue);
productDrawable.FirstBitmap = await img1;
productDrawable.SecondBitmap = await img2;
productImage.SetImageDrawable (productDrawable);
currentIndex++;
var evaluator = new MatrixEvaluator ();
var finalMatrix = new Matrix ();
finalMatrix.SetTranslate (-DeltaX, -(float)productDrawable.FirstBitmap.Height / 1.3f + (float)productImage.Height);
finalMatrix.PostScale (1.27f, 1.27f);
kenBurnsMovement = ValueAnimator.OfObject (evaluator, new Matrix (), finalMatrix);
kenBurnsMovement.Update += (sender, e) => productDrawable.SetMatrix ((Matrix)e.Animation.AnimatedValue);
kenBurnsMovement.SetDuration (14000);
kenBurnsMovement.RepeatMode = ValueAnimatorRepeatMode.Reverse;
kenBurnsMovement.RepeatCount = ValueAnimator.Infinite;
kenBurnsMovement.Start ();
kenBurnsAlpha = ObjectAnimator.OfInt (productDrawable, "alpha", 0, 0, 0, 255, 255, 255);
kenBurnsAlpha.SetDuration (kenBurnsMovement.Duration);
kenBurnsAlpha.RepeatMode = ValueAnimatorRepeatMode.Reverse;
kenBurnsAlpha.RepeatCount = ValueAnimator.Infinite;
kenBurnsAlpha.AnimationRepeat += (sender, e) => NextImage ();
kenBurnsAlpha.Start ();
}
