回收者视图的项目背景不会在点击事件中更新吗？

Question

I have audio player layout as an item in recycler view . I want the play icon to change into pause icon on icon clicked . The log shows that icon has been set but the icon doesn't change in appearance in recycler view .

My code:

@Override
    public void onBindViewHolder(@NonNull final ViewHolder viewHolder, final int i) {


        customNoteView = notesList.get(i);
        notesText = viewHolder.notesWriteArea;
        notesImage = viewHolder.notesImage;
        notesAudio = viewHolder.notesAudio;
        notesAudioPlayButton = viewHolder.notesAudioPlayButton;
        notesAudioSeekBar = viewHolder.notesAudioSeekBar;
        notesAudioDeleteButton = viewHolder.notesAudioDeleteButton;



        if(customNoteView.getNoteText()!=null){
            editTextList.add(notesText);
            notesText.setVisibility(View.VISIBLE);
            notesImage.setVisibility(View.GONE);
            notesAudio.setVisibility(View.GONE);
            notesText.requestFocus();
            focussedEditText = notesText;
            notesText.setOnFocusChangeListener(new View.OnFocusChangeListener() {
                @Override
                public void onFocusChange(View view, boolean b) {
                    if(b){
                        focussedEditText = ((CustomEditText)view);
                        //Toast.makeText(context, ((CustomEditText) view).getText().toString(), Toast.LENGTH_SHORT).show();
                    }
                }
            });
        }
        else if(customNoteView.getImageUri()!=0){
            notesImage.setVisibility(View.VISIBLE);
            notesText.setVisibility(View.GONE);
            notesAudio.setVisibility(View.GONE);
            Glide.with(notesImage.getContext())
                    .load(notesImage.getContext().getDrawable(customNoteView.getImageUri()))
                    .into(notesImage);

            notesImage.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View view) {
                    Intent intent = new Intent(context, FullScreen.class);
                    ActivityOptionsCompat options =  ActivityOptionsCompat.makeSceneTransitionAnimation((Activity) context,
                            notesImage,
                            ViewCompat.getTransitionName(notesImage)
                            );

                    context.startActivity(intent, options.toBundle());

                }
            });
        }
        else if(customNoteView.getAudioUri()!=null){
            notesAudio.setVisibility(View.VISIBLE);
            notesImage.setVisibility(View.GONE);
            notesText.setVisibility(View.GONE);
            notesAudioPlayButton.setOnClickListener(new View.OnClickListener() {
                @Override
                public void onClick(View view) {
                    notesAudioPlayButton.setBackground(context.getDrawable(R.drawable.ic_pause));
                    notesAudio.setBackground(context.getDrawable(R.drawable.gray_rectangular_background));
                    Adapter.this.notifyItemChanged(viewHolder.getAdapterPosition());

                    Toast.makeText(context, ""+viewHolder.getAdapterPosition(), Toast.LENGTH_SHORT).show();
                }
            });

        }

    }

I actually have a linear layout for audio item. I'm setting onClickListener() no an ImageButton to change it's background from play to pause.

Extra information:

I have observed that clicking the icon first time doesn't do anything .

Clicking it second time changes it to pause icon but then it quickly turns back to play icon .

Clicking it third time changes it to pause icon .

Any suggestion to get this working be great !

Answer 1

Do you execute the code you showed in Adapter? If so, why don't you call notifyItemChanged(position)? And if not, why don't you create method in Adapter that update view with the parameter of position and call it from Activity or Fragment?

Answer 2

delete this line :

Adapter.this.notifyItemChanged(viewHolder.getAdapterPosition());

or save current background icon for recyclerview item

Answer 3

I'm always using notifyDataSetChanged() and never had any problem with that. Can you just use that or are there certain reasons you doing it otherwise?