android - Animation on notifyDataSetChanged() in FragmentStatePagerAdapter -
by overwriting getitemposition() method can refresh fragmentstatepageradapter, works fine. change of contents not nice see.
is there possibility apply kind of animation refresh fragmentstatepageradapter?
i facing same issue.so, should do. make global variables in adapter want continuous animate.
now when start animation on button click. pass value global variables.
when notifydatasetchanged doesn't effect animation.
i haven't found correct way. so, did thing.it's working perfect.
public class homeadapter extends recyclerview.adapter<recyclerview.viewholder> { private context mcontext; private arraylist<response.databean> feedarraylist = new arraylist<>(); feedclicklistener mlistener; @inject imageutility mimageutility; @inject apputils mapputils; @inject preferencemanager mpref; private float prevposition = -1; private yoyo.yoyostring ropetext,ropeimage; private int temphandleplaypause = 0; private textview temptextview; private imageview tempimageview; /** * click listeners */ interface feedclicklistener { void onplayaudioclicked( feedresponse.databean feeditem, seekbar audioprogress, int position); void onpauseaudioclicked(feedresponse.databean feeditem); } public homeadapter(context context, arraylist<response.databean> mdataarraylist, homeclicklistener mfeedlistener) { ((baseapplication) context.getapplicationcontext()).getappcomponent().inject(this); this.mcontext = context; this.feedarraylist = mdataarraylist; mlistener = mfeedlistener; } @override public recyclerview.viewholder oncreateviewholder(viewgroup parent, int viewtype) { return new itemviewholder(layoutinflater.from(parent.getcontext()).inflate(r.layout.item_layout, parent, false)); } @override public void onbindviewholder(recyclerview.viewholder holder, int position) { switch (holder.getitemviewtype()) { itemviewholder holderitem = (itemviewholder) holder; int adapterposition = holder.getadapterposition() - 1; holderitem.normalcontainer.setvisibility(view.visible); holderitem.bannercontainer.setvisibility(view.gone); setupnormalitem(adapterposition, holderitem); } } private void setupnormalitem(int adapterposition, itemviewholder holder) { feedresponse.databean feeditem = feedarraylist.get(adapterposition); // set data current view holder items setupitems(holder, feeditem, adapterposition); } private void setupitems(itemviewholder holder, feedresponse.databean feeditem, int position) { if (feeditem.isstop()) { holder.playimageview.setvisibility(view.gone); holder.pauseimageview.setvisibility(view.visible); } else { holder.playimageview.setvisibility(view.visible); holder.pauseimageview.setvisibility(view.gone); holder.audioprogress.setprogress(0); } holder.playimageview.setonclicklistener(v -> { feeditem.setiscomplete(false); if (prevposition >= 0) { feedarraylist.get((int)prevposition).setisstop(false); feedarraylist.get((int)prevposition).setisprepare(false); } feedarraylist.get(position).setisstop(true); feedarraylist.get(position).setisprepare(true); mlistener.onplayaudioclicked(feeditem, holder.audioprogress, position); prevposition = position; temphandleplaypause = 1; temptextview = holder.tvplayingblink; tempimageview = holder.pauseimageview; notifydatasetchanged(); }); holder.pauseimageview.setonclicklistener(v -> { feedarraylist.get(position).setisstop(false); temptextview = holder.tvplayingblink; tempimageview = holder.pauseimageview; temphandleplaypause = 0; mlistener.onpauseaudioclicked(feeditem); notifydatasetchanged(); }); if (feeditem.isprepare()) { holder.tvplayingblink.setvisibility(view.visible); if (temphandleplaypause == 1){ startanimation(); }else { stopanimation(); } } else { holder.tvplayingblink.setvisibility(view.invisible); if (temphandleplaypause == 1){ startanimation(); }else { stopanimation(); } } // play on complete audio if (feeditem.iscomplete()) { holder.playimageview.setvisibility(view.visible); holder.pauseimageview.setvisibility(view.gone); } if ((!feeditem.iscomplete()) && feeditem.gettotallength() > 0) { holder.audioprogress.setmax(feeditem.gettotallength()); holder.audioprogress.setprogress(0); } } private void startanimation(){ if (ropetext != null || ropeimage != null) { ropetext.stop(true); ropeimage.stop(true); } ropetext = yoyo.with(techniques.pulse) .duration(800) .repeat(yoyo.infinite) .pivot(yoyo.center_pivot, yoyo.center_pivot) .interpolate(new acceleratedecelerateinterpolator()) .playon(temptextview); ropeimage = yoyo.with(techniques.pulse) .duration(800) .repeat(yoyo.infinite) .pivot(yoyo.center_pivot, yoyo.center_pivot) .interpolate(new acceleratedecelerateinterpolator()) .playon(tempimageview); } private void stopanimation(){ if (ropetext != null || ropeimage != null) { ropetext.stop(true); ropeimage.stop(true); } } public void updatedata(list<feedresponse.databean> items) { feedarraylist.clear(); feedarraylist.addall(items); notifydatasetchanged(); } public void deleteitem(int position) { feedarraylist.remove(position); notifydatasetchanged(); } @override public int getitemcount() { return (feedarraylist.size()); } public static class itemviewholder extends recyclerview.viewholder { @bindview(r.id.image_view_3) imageview imageview3; @bindview(r.id.tvplayingblink) textview tvplayingblink; public itemviewholder(view itemview) { super(itemview); butterknife.bind(this, itemview); } } } 
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