Item animation stopping in recyclerview when scrolled off the view android

Question

I have a Recyclerview, im animating a view inside individual list item, but when I scroll the recyclerview the animation is stopping. Its because recyclerview removes the items form its view so when we scroll back it fetches it back! But now i want that animation to keep going as I would stop it only when i get data from server!

All I want is the animation that I start in the individual items inside the recylerview shouldn't stop even if the recyclerview is scrolled and the view is out of focus and comes back to focus! I need to stop the animation in the code when I get the server data! I have the code where to stop the animation and it works if the item is not scrolled off the view!

btn.onClick -- this button is the onClick for the recyclerview list item 1 btn.startAnimation(anim.xml) -- starting the animation

onSuccess -- server returns success btn.clearAnimation();

but before the onSuccess if we scroll the list the animation is stopped!

Please help!

I had similar problem but Alexandre Beaulieu's response worked for me. You should check it out. — Kuba B
– Kuba B, Commented Jul 25, 2017 at 20:30

WonderSoftwares · Accepted Answer · 2017-08-03 13:19:13Z

By inspiring from crymson's answer i have made little easy and useful solution using tag method of View instead setting a boolean in complicated logic of your custom adapter.

@Override public void onViewDetachedFromWindow(RecyclerView.ViewHolder holder) { super.onViewDetachedFromWindow(holder); if (holder.getItemViewType() == TYPE_AD) ((ViewHolderForAd) holder).ivStory.setTag(false); } public class ViewHolderForAd extends RecyclerView.ViewHolder { private ImageView ivStory; TextView tvName; public ViewHolderForAd(View view) { super(view); ivStory = (ImageView) view.findViewById(R.id.ivStoryImage); tvName = (TextView) view.findViewById(R.id.tvAppName); view.setOnClickListener(new OnClickListener() { @Override public void onClick(View v) { int pos = getAdapterPosition(); if (pos < 0) { pos = (int) v.getTag(); } customItemClickListener.onItemClicked(v, pos); } }); //ivStory.startAnimation(AnimationUtils.loadAnimation(context, R.anim.pulse_story)); ivStory.setTag(false); //Set default tag false to decrease risk of null } } @Override public void onBindViewHolder(RecyclerView.ViewHolder viewHolder, int i) { //...Your code... if (!(boolean) holder1.ivStory.getTag()) { holder1.ivStory.setTag(true); holder1.ivStory.startAnimation(AnimationUtils.loadAnimation(context, R.anim.pulse_story)); } //...Your code...// }

You can use setTag(key, object) instead of setTag(object) if you already tagged something(like position) in your imageView. Hope this helps someone.

crymson · Accepted Answer · 2016-08-16 19:27:12Z

Hard to give you a full solution but have you tried saving the animation state inside the ViewHolder that you are using? I'd recommend saving a boolean flag in the ViewHolder class you defined like isAnimating which is initially set to false and in your onBindViewHolder(...) method you can do something like

if (viewHolder.isAnimating) { // start animation } else { // clear animation } viewHolder.btn.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { viewHolder.isAnimating = true; // start animation } });

Collectives™ on Stack Overflow

Item animation stopping in recyclerview when scrolled off the view android

2 Answers 2

Comments

Comments

Linked

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

Comments

Linked

Related