How to change the state of a CheckBox from an EditText that are in a RecyclerView? -


i have recyclerview follows:

  private class productadapter extends recyclerview.adapter<productholder>      {          private list<product> listproductsrecyclerview;          public productadapter(list<product> products){              products = product.getlistproduct(true);              listproductsrecyclerview = products;              amount = new string[products.size()];          }          @override          public productholder oncreateviewholder(viewgroup parent, int viewtype)          {              layoutinflater layoutinflater = layoutinflater.from(m_actorder);              view view = layoutinflater.inflate(r.layout.act_item_product_adapter,parent,false);              return new productholder(view, new mamountedittextlistener());          }          @override          public void onbindviewholder(final productholder holder, final int position)          {              final product product =listproductsrecyclerview.get(position);                holder.medittextlistener.updateposition(holder.getadapterposition());                           holder.bindproduct(product);          }          @override          public int getitemcount()          {              return listproductsrecyclerview.size();          }          public void setproducts(list<product> products) {listproductsrecyclerview = products;}          public list<product> getproducts(){return listproductsrecyclerview;}      }

private class productholder extends recyclerview.viewholder{          public mamountedittextlistener medittextlistener;            private textview  m_product_name;          private textview m_product_cost;          private textview m_product_stock;          private edittext m_product_amount;          private imageview m_product_photo;          private checkbox m_product_ok;            private product mproduct;            public productholder(view itemview, mamountedittextlistener medittextlistener)          {              super(itemview);                m_product_name = (textview)  itemview.findviewbyid(r.id.adapter_product_nameproduct);              m_product_cost = (textview)  itemview.findviewbyid(r.id.adapter_product_amount);              m_product_stock = (textview)   itemview.findviewbyid(r.id.adapter_product_stock);              m_product_amount = (edittext)itemview.findviewbyid(r.id.adapter_product_amount);              this.medittextlistener = medittextlistener;              m_product_amount.addtextchangedlistener(medittextlistener);              m_product_photo = (imageview)   itemview.findviewbyid(r.id.adapter_product_photo);              m_product_ok = (checkbox)   itemview.findviewbyid(r.id.adapter_product_ok);              }            public void bindproduct(product product)          {              mproduct = product;              m_product_name.settext(mproduct.getnameproduct());              m_product_cost.settext(" costo: " + string.format("%.2f",mproduct.getcost()));              m_product_stock.settext(" stock: " + integer.tostring(mproduct.getstock()));              if(mproduct.getimagenproduct() != null){                  byte[] decodedstring = base64.decode(mproduct.getimagenproduct(), base64.default);                  m_produc_photo.setimagebitmap(bitmapfactory.decodebytearray(decodedstring, 0, decodedstring.length));              }            }      }

public class mamountedittextlistener implements textwatcher {  //here necessary analyze text entered in m_product_amount = (edittext)itemview.findviewbyid(r.id.adapter_product_amount);  }

what want enable (.setchecked (true)) checkbox when m_product_amount(edittext) has value or disable (.setchecked (false)) when editext empty.

i imagine should done within public class mamountedittextlistener, have no idea how it.

i had idea this:

if (holder.m_product_amount.gettext().length()> 0){     holder.m_product_ok.setchecked(true);  }
inside private class productadapter in public void onbindviewholder,but doesn't work.

any ideas or suggestions welcome.

thanks


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