RecyclerView中的选定项目在滚动时发生更改

RecyclerView中的选定项目在滚动时发生更改

Recyclerview总是在滚动时重用视图，因此您必须将选定的位置存储到临时arraylist中，然后将条件检查保持在onBindViewHolder中，以确保该特定位置是否已经存在于arraylist中？我更新了你的衣服。在评论中找到以下变化

    private List<Occurrence> mDataSet;private Activity activity;//Added here temporary ArrayListprivate ArrayList<String> mSelectedPosition = new ArrayList<String>;public <OccurrencesActivity extends OnOccurrenceSelectedListener> OccurrencesAdapter(OccurrencesActivity occurrencesActivity, List<Occurrence> occurrences) {    this.activity = (android.app.Activity) occurrencesActivity;    mDataSet = occurrences;}@Overridepublic void onBindViewHolder(final ViewHolder holder, final int position) {    //Set ViewTag    holder.itemView.setTag(position);    //Check everyposition during view binding process    if(mSelectedPosition.contains(String.valueOf(position))){     holder.itemView.setBackgroundColor(App.getContext().getResources().getColor(R.color.white));     holder.titleTextView.setTextColor(App.getContext().getResources().getColor(R.color.turquoise));     holder.statusTextView.setTextColor(App.getContext().getResources().getColor(R.color.grey));     holder.dateTextView.setTextColor(App.getContext().getResources().getColor(R.color.grey));     holder.timeTextView.setTextColor(App.getContext().getResources().getColor(R.color.grey));     }else{    holder.itemView.setBackgroundColor(App.getContext().getResources().getColor(R.color.white));         holder.titleTextView.setTextColor(App.getContext().getResources().getColor(R.color.turquoise));         holder.statusTextView.setTextColor(App.getContext().getResources().getColor(R.color.grey));         holder.dateTextView.setTextColor(App.getContext().getResources().getColor(R.color.grey));         holder.timeTextView.setTextColor(App.getContext().getResources().getColor(R.color.grey));      }    Occurrence instance = mDataSet.get(position);    ...    setonClickListener(holder, instance);    }private void setonClickListener(final ViewHolder holder, final Occurrence occurrence) {    holder.itemView.setonClickListener(new View.onClickListener() {        @Override        public void onClick(View view) {       // Get Position         int position = (int) view.getTag(); //Remove SelectedPosition if Already there   if(mSelectedPosition.contains(position))       mSelectedPosition.remove(String.valueOf(position));    else       mSelectedPosition.add(String.valueOf(position));     notifyDataSetChanged();    //Not sure about this lines      occurrence.setSelected(!occurrence.isSelected());     ((OnOccurrenceSelectedListener)activity).onOccurrenceSelected(mDataSet); }        });    }