private AnimatorSet createContentTextShowAnimation(View currentContentText, View newContentText)
{
int positionDeltaPx = dpToPixels(CONTENT_TEXT_POS_DELTA_Y_DP);
AnimatorSet animations = new AnimatorSet();
Animator currentContentMoveUp = ObjectAnimator.OfFloat(currentContentText, "y", 0, -positionDeltaPx);
currentContentMoveUp.SetDuration(ANIM_CONTENT_TEXT_HIDE_TIME);
var endListener = new AnimatorEndListener();
endListener.OnEndAnimation += () =>
{
mContentTextContainer.RemoveView(currentContentText);
};
currentContentMoveUp.AddListener(endListener);
Animator currentContentFadeOut = ObjectAnimator.OfFloat(currentContentText, "alpha", 1, 0);
currentContentFadeOut.SetDuration(ANIM_CONTENT_TEXT_HIDE_TIME);
animations.PlayTogether(currentContentMoveUp, currentContentFadeOut);
Animator newContentMoveUp = ObjectAnimator.OfFloat(newContentText, "y", positionDeltaPx, 0);
newContentMoveUp.SetDuration(ANIM_CONTENT_TEXT_SHOW_TIME);
Animator newContentFadeIn = ObjectAnimator.OfFloat(newContentText, "alpha", 0, 1);
newContentFadeIn.SetDuration(ANIM_CONTENT_TEXT_SHOW_TIME);
animations.PlayTogether(newContentMoveUp, newContentFadeIn);
animations.SetInterpolator(new DecelerateInterpolator());
return(animations);
}
protected AnimatorSet createBGAnimatorSet(Android.Graphics.Color color)
{
View bgColorView = new ImageView(mAppContext);
bgColorView.LayoutParameters = new RelativeLayout.LayoutParams(mRootLayout.Width, mRootLayout.Height);
bgColorView.SetBackgroundColor(color);
mBackgroundContainer.AddView(bgColorView);
int[] pos = calculateCurrentCenterCoordinatesOfPagerElement(mActiveElementIndex);
float finalRadius = mRootLayout.Width > mRootLayout.Height ? mRootLayout.Width : mRootLayout.Height;
AnimatorSet bgAnimSet = new AnimatorSet();
Animator fadeIn = ObjectAnimator.OfFloat(bgColorView, "alpha", 0, 1);
if (Build.VERSION.SdkInt >= BuildVersionCodes.Lollipop)
{
Animator circularReveal = ViewAnimationUtils.CreateCircularReveal(bgColorView, pos[0], pos[1], 0, finalRadius);
circularReveal.SetInterpolator(new AccelerateInterpolator());
bgAnimSet.PlayTogether(circularReveal, fadeIn);
}
else
{
bgAnimSet.PlayTogether(fadeIn);
}
bgAnimSet.SetDuration(ANIM_BACKGROUND_TIME);
var endListener = new AnimatorEndListener();
endListener.OnEndAnimation += () =>
{
mRootLayout.SetBackgroundColor(color);
bgColorView.Visibility = ViewStates.Gone;
mBackgroundContainer.RemoveView(bgColorView);
};
bgAnimSet.AddListener(endListener);
return(bgAnimSet);
}
