AudioUrlSpan.java 文件源码

@NonNull
private static Drawable drawable(Context context) {
    LevelListDrawable levels = new AppLevelListDrawable();
    levels.addLevel(PLAY_ICON_LEVEL, PLAY_ICON_LEVEL, spinnerDrawable(context));
    levels.addLevel(STOP_ICON_LEVEL, STOP_ICON_LEVEL, speakerDrawable(context));
    int radius = getDimensionPixelSize(context, R.dimen.audio_url_span_loading_spinner_radius);
    levels.setBounds(0, 0, radius * 2, radius * 2);
    return levels;
}