Add Search View in Android 9.

Note:-

 If  androidx.appcompat.R.id.search_close_btn is not Working then change that line to android.support.v7.appcompat.R.id.search_close_btn

@Override
    public boolean onCreateOptionsMenu(Menu menu) {

         getMenuInflater().inflate(R.menu.menu_sales, menu);
        MenuItem searchItem = menu.findItem(R.id.search);

         searchItem.setOnActionExpandListener(new MenuItem.OnActionExpandListener() {
            @Override
            public boolean onMenuItemActionExpand(MenuItem menuItem) {
                return true;
            }

             @Override
            public boolean onMenuItemActionCollapse(MenuItem menuItem) {
                return true;
            }
        });
        SearchManager searchManager = (SearchManager) getSystemService(Context.SEARCH_SERVICE);
        SearchView searchView = (SearchView) searchItem.getActionView();
        searchView.setOnQueryTextListener(new SearchView.OnQueryTextListener() {
            @Override
            public boolean onQueryTextSubmit(String query) {
                return true;
            }

             @Override
            public boolean onQueryTextChange(String newText) {
                return false;
            }
        });

         searchView.setQueryHint("Search");
        searchView.setSearchableInfo(searchManager.getSearchableInfo(getComponentName()));

         View closeButton = searchView.findViewById(androidx.appcompat.R.id.search_close_btn);
        closeButton.setOnClickListener(v -> {
            
            searchView.setQuery("", false);
            searchView.clearFocus();
        });
        return true;
    }

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