android - trying to change background of imageButton in List item -

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objective

i want play sound on click of list item imagebutton (initially hidden, visible on click) showing play pause (2 images) resource. imagebutton show state of sound user.

problem

when scroll list, imagebutton again gone.

code

baseadapter

    private class listadapter extends baseadapter {     private context mcontext;     private layoutinflater minflater;     viewholder holder;      listadapter(context context) {         mcontext = context;         this.minflater = layoutinflater.from(mcontext);      }      @override     public int getcount() {         return indextitles.size();     }      @override     public object getitem(int position) {         return indextitles.get(position);     }      @override     public long getitemid(int position) {         return 0;     }      @override     public view getview(int position, view convertview, viewgroup parent) {         viewholder holder;         if (convertview == null) {             holder = new viewholder();             convertview = minflater.inflate(r.layout.dua_row, null);             holder.mainbg = (relativelayout) convertview.findviewbyid(r.id.duabg);             holder.title_text = (textview) convertview.findviewbyid(r.id.title_text);             holder.buttonplaypause = (imagebutton) convertview.findviewbyid(r.id.imagebutton);             holder.buttonplaypause.setfocusable(false);             holder.buttonplaypause.setfocusableintouchmode(false);             convertview.settag(holder);         } else {             holder = (viewholder) convertview.gettag();         }         string leftremoved = indextitles.get(position).trim();         holder.title_text.settext(leftremoved);         // /player selection         if (playpos == position) {             holder.buttonplaypause.setbackgroundresource(r.drawable.buttonpause);             holder.mainbg.setbackgroundcolor(color.parsecolor("#000000"));             holder.title_text.settextcolor(color.parsecolor("#d59d52"));         } else {             holder.buttonplaypause.setvisibility(view.gone);             holder.title_text.settextcolor(color.parsecolor("#000000"));             holder.mainbg.setbackgroundcolor(color.parsecolor("#d59d52"));         }         return convertview;     }

list row

<relativelayout xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_margin="@dimen/activity_horizontal_margin" android:id="@+id/duabg" android:background="#d59d52">  <textview     android:layout_width="match_parent"     android:layout_height="32dp"     android:text=""     android:textsize="18dp"     android:id="@+id/title_text"     android:ellipsize="end"     android:maxlines="1"      android:layout_alignparenttop="true"     android:layout_marginleft="@dimen/activity_horizontal_margin"     android:layout_margintop="@dimen/activity_horizontal_margin"     android:layout_marginbottom="@dimen/activity_horizontal_margin"     android:layout_toleftof="@+id/imagebutton"     android:layout_tostartof="@+id/imagebutton" />  <imagebutton     android:layout_width="wrap_content"     android:layout_height="wrap_content"     android:id="@+id/imagebutton"     android:focusable="false"     android:visibility="gone"     android:background="@drawable/buttonpause"     android:layout_centervertical="true"     android:layout_alignparentright="true"     android:layout_alignparentend="true" />  <linearlayout     android:orientation="vertical"     android:layout_width="match_parent"     android:layout_height="5dp"     android:background="#000000"     android:layout_alignparenttop="true"     android:layout_centerhorizontal="true"></linearlayout>

onitemclicklistener

// indextitles arraylist<string>     indextitles = getindextitles();     final listadapter adapter = new listadapter(this);     listview.setadapter(adapter);     listview.setonitemclicklistener(new onitemclicklistener() {           @override         public void onitemclick(adapterview<?> parent, view view, int position, long id) {             final view v = view.findviewbyid(r.id.imagebutton);             v.setvisibility(view.visible);              if (mediaplayer.isplaying() && playpos == position) {                 // pause mediaplayer                 mediaplayer.pause();                 media_paused = true;                 v.setbackgroundresource(r.drawable.buttonplay);              } else if (media_paused && !mediaplayer.isplaying() && playpos == position) {                 media_paused = false;                 mediaplayer.start();                 v.setbackgroundresource(r.drawable.buttonpause);             } else if (!mediaplayer.isplaying() || mediaplayer.isplaying() && playpos != position) {                 // release , start position                 mediaplayer.reset();                 v.setvisibility(view.visible);                 v.setbackgroundresource(r.drawable.buttonpause);                 string s = string.format("%03d", position + 2);                 string path = sdcard_path + "/doadata/dd_" + s + ".mp3";                 playpos = position;                 adapter.notifydatasetchanged();                 file file = new file(path);                 uri uri = uri.fromfile(file);                 try {                     mediaplayer.setdatasource(context, uri);                     mediaplayer.prepare();                     mediaplayer.start();                     mediaplayer.setoncompletionlistener(new mediaplayer.oncompletionlistener() {                         @override                         public void oncompletion(mediaplayer mp) {                             v.setbackgroundresource(r.drawable.buttonplay);                         }                     });                 } catch (ioexception e) {                     e.printstacktrace();                 }             }         }     });

what needed want imagebutton keep state being played or paused.

thanks

simply set visibility inside if statement this:

   if (playpos == position) {                     holder.buttonplaypause.setvisibility(view.visible);          // further implementation     } else {         holder.buttonplaypause.setvisibility(view.gone);         // further implementation     }

the problem occured, because list adapter recycles old views. when 1 view not visible , list creating new view using old one, have set every different property again, else properties previous view object recycled/reused.


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