android - Leak on ViewHolder and Recycler view with MVVM -

i'm having issue viewholder leaking reference context via simple toast

this adapter (dummy data)

public class changelanguageadapter extends recyclerview.adapter<languageviewholder> { @override public languageviewholder oncreateviewholder(viewgroup parent, int viewtype) {     layoutinflater layoutinflater =             layoutinflater.from(parent.getcontext());      itemlanguagebinding itembinding =             itemlanguagebinding.inflate(layoutinflater, parent, false);      return new languageviewholder(itembinding); }  @override public void onbindviewholder(languageviewholder holder, int position) {     string language = "dummy language";     holder.setlanguage(language);     holder.bind(language); }  @override public int getitemcount() {     return 20; } } 

this viewholder

public class languageviewholder extends recyclerview.viewholder {  private itemlanguagebinding binding;  private string language;  public languageviewholder(itemlanguagebinding itemlanguagebinding) {     super(itemlanguagebinding.getroot());     this.binding = itemlanguagebinding; }  public void bind(string a){     setlanguage(a);     binding.setviewmodel(this);     binding.executependingbindings(); }  public string getlanguage() {     return language; }  public void setlanguage(string language) {     this.language = language; }  public void onclick(view v){     toast.maketext(v.getcontext(), language, toast.length_long).show(); }  } 

and how binding done:

<?xml version="1.0" encoding="utf-8"?> 

<data>     <variable         name="viewmodel"         type=".adapters.languageviewholder" /> </data>  <textview     android:layout_width="wrap_content"     android:layout_height="wrap_content"     android:text="@{viewmodel.language}"     android:textcolor="@color/colorblack"     android:onclick="@{viewmodel::onclick}"     tools:text="language" /> 

should nullify binding when ondestroy executed? don't understand why viewmodel being leaked