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InstaMaterial source files (comments transitions)
private void animatePhotoLike(final CellFeedViewHolder holder) {
if (!likeAnimations.containsKey(holder)) {
holder.vBgLike.setVisibility(View.VISIBLE);
holder.ivLike.setVisibility(View.VISIBLE);
holder.vBgLike.setScaleY(0.1f);
holder.vBgLike.setScaleX(0.1f);
holder.vBgLike.setAlpha(1f);
holder.ivLike.setScaleY(0.1f);
holder.ivLike.setScaleX(0.1f);
AnimatorSet animatorSet = new AnimatorSet();
likeAnimations.put(holder, animatorSet);
ObjectAnimator bgScaleYAnim = ObjectAnimator.ofFloat(holder.vBgLike, "scaleY", 0.1f, 1f);
bgScaleYAnim.setDuration(200);
bgScaleYAnim.setInterpolator(DECCELERATE_INTERPOLATOR);
ObjectAnimator bgScaleXAnim = ObjectAnimator.ofFloat(holder.vBgLike, "scaleX", 0.1f, 1f);
bgScaleXAnim.setDuration(200);
bgScaleXAnim.setInterpolator(DECCELERATE_INTERPOLATOR);
ObjectAnimator bgAlphaAnim = ObjectAnimator.ofFloat(holder.vBgLike, "alpha", 1f, 0f);
bgAlphaAnim.setDuration(200);
bgAlphaAnim.setStartDelay(150);
bgAlphaAnim.setInterpolator(DECCELERATE_INTERPOLATOR);
ObjectAnimator imgScaleUpYAnim = ObjectAnimator.ofFloat(holder.ivLike, "scaleY", 0.1f, 1f);
imgScaleUpYAnim.setDuration(300);
imgScaleUpYAnim.setInterpolator(DECCELERATE_INTERPOLATOR);
ObjectAnimator imgScaleUpXAnim = ObjectAnimator.ofFloat(holder.ivLike, "scaleX", 0.1f, 1f);
imgScaleUpXAnim.setDuration(300);
imgScaleUpXAnim.setInterpolator(DECCELERATE_INTERPOLATOR);
ObjectAnimator imgScaleDownYAnim = ObjectAnimator.ofFloat(holder.ivLike, "scaleY", 1f, 0f);
imgScaleDownYAnim.setDuration(300);
imgScaleDownYAnim.setInterpolator(ACCELERATE_INTERPOLATOR);
ObjectAnimator imgScaleDownXAnim = ObjectAnimator.ofFloat(holder.ivLike, "scaleX", 1f, 0f);
imgScaleDownXAnim.setDuration(300);
imgScaleDownXAnim.setInterpolator(ACCELERATE_INTERPOLATOR);
animatorSet.playTogether(bgScaleYAnim, bgScaleXAnim, bgAlphaAnim, imgScaleUpYAnim, imgScaleUpXAnim);
animatorSet.play(imgScaleDownYAnim).with(imgScaleDownXAnim).after(imgScaleUpYAnim);
animatorSet.addListener(new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
resetLikeAnimationState(holder);
}
});
animatorSet.start();
}
}
private void updateHeartButton(final CellFeedViewHolder holder, boolean animated) {
if (animated) {
if (!likeAnimations.containsKey(holder)) {
AnimatorSet animatorSet = new AnimatorSet();
likeAnimations.put(holder, animatorSet);
ObjectAnimator rotationAnim = ObjectAnimator.ofFloat(holder.btnLike, "rotation", 0f, 360f);
rotationAnim.setDuration(300);
rotationAnim.setInterpolator(ACCELERATE_INTERPOLATOR);
ObjectAnimator bounceAnimX = ObjectAnimator.ofFloat(holder.btnLike, "scaleX", 0.2f, 1f);
bounceAnimX.setDuration(300);
bounceAnimX.setInterpolator(OVERSHOOT_INTERPOLATOR);
ObjectAnimator bounceAnimY = ObjectAnimator.ofFloat(holder.btnLike, "scaleY", 0.2f, 1f);
bounceAnimY.setDuration(300);
bounceAnimY.setInterpolator(OVERSHOOT_INTERPOLATOR);
bounceAnimY.addListener(new AnimatorListenerAdapter() {
@Override
public void onAnimationStart(Animator animation) {
holder.btnLike.setImageResource(R.drawable.ic_heart_red);
}
});
animatorSet.play(rotationAnim);
animatorSet.play(bounceAnimX).with(bounceAnimY).after(rotationAnim);
animatorSet.addListener(new AnimatorListenerAdapter() {
@Override
public void onAnimationEnd(Animator animation) {
resetLikeAnimationState(holder);
}
});
animatorSet.start();
}
} else {
if (likedPositions.contains(holder.getPosition())) {
holder.btnLike.setImageResource(R.drawable.ic_heart_red);
} else {
holder.btnLike.setImageResource(R.drawable.ic_heart_outline_grey);
}
}
}
private void updateLikesCounter(CellFeedViewHolder holder, boolean animated) {
int currentLikesCount = likesCount.get(holder.getPosition()) + 1;
String likesCountText = context.getResources().getQuantityString(
R.plurals.likes_count, currentLikesCount, currentLikesCount
);
if (animated) {
holder.tsLikesCounter.setText(likesCountText);
} else {
holder.tsLikesCounter.setCurrentText(likesCountText);
}
likesCount.put(holder.getPosition(), currentLikesCount);
}
<!--...-->
<LinearLayout
android:layout_width="0dp"
android:layout_height="match_parent"
android:layout_weight="1"
android:gravity="center_vertical|right">
<ImageView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/ic_heart_small_blue" />
<TextSwitcher
android:id="@+id/tsLikesCounter"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="8dp"
android:layout_marginRight="8dp"
android:inAnimation="@anim/slide_in_likes_counter"
android:outAnimation="@anim/slide_out_likes_counter">
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="123 likes"
android:textColor="@color/text_like_counter" />
<TextView
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textColor="@color/text_like_counter" />
</TextSwitcher>
</LinearLayout>
<!--...-->
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