android.widget.RatingBar#setStepSize ( )源码实例Demo

private void initRating(View convertView, RatingBar kinoRatingRatingBar, KinoDto movie) {
    TextView kinoRatingRatingBarAsText = (TextView) convertView.findViewById(R.id.main_result_kino_rating_bar_as_text);
    TextView kinoRatingRatingBarMaxAsText = (TextView) convertView.findViewById(R.id.main_result_kino_rating_bar_max_as_text);

    SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(getContext());

    int maxRating;
    if (movie.getMaxRating() == null) {
        String defaultMaxRateValue = prefs.getString("default_max_rate_value", "5");
        maxRating = Integer.parseInt(defaultMaxRateValue);
    } else {
        maxRating = movie.getMaxRating();
    }

    if (maxRating <= 5) {
        kinoRatingRatingBarAsText.setVisibility(View.INVISIBLE);
        kinoRatingRatingBarMaxAsText.setVisibility(View.INVISIBLE);
        kinoRatingRatingBar.setVisibility(View.VISIBLE);

        kinoRatingRatingBar.setStepSize(0.5f);
        kinoRatingRatingBar.setNumStars(maxRating);

        if (movie.getRating() != null) {
            kinoRatingRatingBar.setRating(movie.getRating());
        } else {
            kinoRatingRatingBar.setRating(0);
        }
    } else {
        kinoRatingRatingBar.setVisibility(View.INVISIBLE);
        kinoRatingRatingBarAsText.setVisibility(View.VISIBLE);
        kinoRatingRatingBarMaxAsText.setVisibility(View.VISIBLE);

        kinoRatingRatingBarAsText.setText(String.format("%s", movie.getRating()));
        kinoRatingRatingBarMaxAsText.setText(String.format("/%s", maxRating));
    }
}