searchActivity.java

searchBar.setOnSearchActionListener(new SearchBar.OnSearchActionListener() {
            @Override
            public void onSearchStateChanged(boolean enabled) {
                String state = enabled ? "enabled" : "disabled";
                Toast.makeText(getApplicationContext(), "Search bar is " + state, Toast.LENGTH_SHORT).show();
            }

            @Override
            public void onSearchConfirmed(CharSequence text) {
                Toast.makeText(getApplicationContext(), "Search query is: " + text, Toast.LENGTH_SHORT).show();
            }

            @Override
            public void onButtonClicked(int buttonCode) {
                switch (buttonCode) {
                    case SearchBar.BUTTON_BACK:
                        Toast.makeText(getApplicationContext(), "Back button pressed", Toast.LENGTH_SHORT).show();
                        break;
                    case SearchBar.BUTTON_NAVIGATION:
                        Toast.makeText(getApplicationContext(), "Open Navigation Drawer", Toast.LENGTH_SHORT).show();
                        break;
                    case SearchBar.BUTTON_SPEECH:
                        // Yet to come
                        Toast.makeText(getApplicationContext(), "Start voice recognition module", Toast.LENGTH_SHORT).show();
                        break;
                }
            }
        });