If you are using RecyclerView you need to maintain states of each row, means if you are checking using a condition(i.e. if) at any stage of RecyclerView item(in recyclerview adapter class) then you need to handle else as well. Here is the sample RecyclerViewAdapter :
public class ContactsAdapter extends RecyclerView.Adapter<ContactsAdapter.ViewHolder> {
List<ViewHolder> holders = new ArrayList<ViewHolder>();
private ArrayList<ContactModel> arrayList = new ArrayList<>();
private Context context;
private LayoutInflater inflater;
public void clearAdapter() {
arrayList.clear();
notifyDataSetChanged();
}
public ContactsAdapter(Context context, ArrayList<ContactModel> arrayList) {
this.context = context;
this.arrayList = arrayList;
}
public void setList(ArrayList<ContactModel> listSearch) {
this.arrayList = listSearch;
notifyItemRangeChanged(0, listSearch.size());
}
@Override
public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
inflater = LayoutInflater.from(parent.getContext());
View view = inflater.inflate(R.layout.custom_row_for_contacts, parent, false);
ViewHolder viewHolder = new ViewHolder(view);
holders.add(viewHolder);
return viewHolder;
}
@Override
public void onBindViewHolder(final ViewHolder holder, final int position) {
final ContactModel current = this.arrayList.get(position);
holder.txtDriverName.setText(current.getName());
holder.txtDriverPhone.setText(current.getPhone());
if (current.getImgUrl().length() > 0) {
String urlLicenceThumb = UrlEndPoints.parentUrl + current.getImgUrl();
Glide.with(context).load(urlLicenceThumb).error(R.mipmap.ic_launcher).into(holder.imgDriver);
} else {
Glide.with(context).load(R.mipmap.ic_launcher).into(holder.imgDriver);
}
}
public void delete(int position) {
arrayList.remove(position);
notifyItemRemoved(position);
}
@Override
public int getItemCount() {
return (null != arrayList ? arrayList.size() : 0);
}
class ViewHolder extends RecyclerView.ViewHolder {
private TextView txtDriverName, txtDriverPhone;
private CircleImageView imgDriver;
private Button btnInvite;
private CheckBox chkAdd;
public ViewHolder(View itemView) {
super(itemView);
chkAdd = (CheckBox) itemView.findViewById(R.id.chkAdd);
imgDriver = (CircleImageView) itemView.findViewById(R.id.imgDriver);
txtDriverName = (TextView)itemView.findViewById(R.id.txtDriverName);
txtDriverPhone = (TextView) itemView.findViewById(R.id.txtDriverPhone);
btnInvite = (Button) itemView.findViewById(R.id.btnInvite);
}
}