Android SearchView.OnQueryTextListener OnQueryTextSubmit not fired on empty query string

Question

I am using Android 4.1.2. I have a SearchView widget on an ActionBar. Documentation on SearchView.OnQueryTextListener

Answer 1

Another option is to trigger the onQueryTextChange method manually through a TextWatcher:

public class MyActivity extends Activity implements SearchView.OnQueryTextListener, TextWatcher {

    // Basic onCreate(Bundle) here

    @Override
    public boolean onCreateOptionsMenu (final Menu menu) {
        getMenuInflater().inflate(R.menu.myMenu, menu);

        final SearchView searchView = (SearchView) menu.findItem(R.id.action_search).getActionView();
        final SearchManager manager = (SearchManager) getSystemService(SEARCH_SERVICE);
        searchView.setSearchableInfo(manager.getSearchableInfo(getComponentName()));
        searchView.setOnQueryTextListener(this);

        final int resource_edit_text = searchView.getContext().getResources().getIdentifier("android:id/search_src_text", null, null);
        ((EditText) searchView.findViewById(resource_edit_text)).addTextChangedListener(this);

        return super.onCreateOptionsMenu(menu);
    }

    // Implementation of TextWatcher, used to have a proper onQueryTextChange (it doesn't update when the last character is removed)
    @Override
    public void beforeTextChanged (final CharSequence charSequence, final int start, final int count, final int after) {}

    @Override
    public void onTextChanged (final CharSequence charSequence, final int start, final int before, final int after) {}

    @Override
    public void afterTextChanged (final Editable editable) {
        if (editable.length() == 0)
            onQueryTextChange(editable.toString());
    }

    // Implementation of OnQueryTextChangeListener

    @Override
    public boolean onQueryTextChange (final String query) {
        // do stuff
        return false;
    }

    @Override
    public boolean onQueryTextSubmit (final String query) {
        // do stuff
        return false;
    }
}

This all goes with all the default xml files which have been given up here, that is not the point of this answer. This is a workaround that I choose to use, feel free to use others