import android.content.Context;
import android.support.v7.widget.SearchView;
import android.util.AttributeSet;

public class EmptySubmitSearchView extends SearchView {

  /*
* Created by: Jens Klingenberg (jensklingenberg.de)
* GPLv3
*
*   //This SearchView gets triggered even when the query submit is empty
*
* */

  SearchView.SearchAutoComplete mSearchSrcTextView;
  OnQueryTextListener listener;

  public EmptySubmitSearchView(Context context) {
    super(context);
  }

  public EmptySubmitSearchView(Context context, AttributeSet attrs) {
    super(context, attrs);
  }

  public EmptySubmitSearchView(Context context, AttributeSet attrs, int defStyleAttr) {
    super(context, attrs, defStyleAttr);
  }

  @Override public void setOnQueryTextListener(OnQueryTextListener listener) {
    super.setOnQueryTextListener(listener);
    this.listener = listener;
    mSearchSrcTextView = this.findViewById(android.support.v7.appcompat.R.id.search_src_text);
    mSearchSrcTextView.setOnEditorActionListener((textView, i, keyEvent) -> {
      if (listener != null) {
        listener.onQueryTextSubmit(getQuery().toString());
      }
      return true;
    });
  }
}