自定义SeekBar，实现带刻度的进度条实现颜色渐变效果

< android:id="@+id/sb2" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_marginTop="24dp" kosmos:bsb_bubble_text_color="#24d1b4" kosmos:bsb_colors="#ffffffff_#ff24d1b4_#ff000000" kosmos:bsb_marks="false" kosmos:bsb_max="100" kosmos:bsb_min="0" kosmos:bsb_progress="20" kosmos:bsb_second_track_color="#15398e" kosmos:bsb_section_count="5" kosmos:bsb_section_text_position="below_section_mark" kosmos:bsb_show_progress_in_float="true" kosmos:bsb_show_section_mark="false" kosmos:bsb_show_section_text="true" kosmos:bsb_show_thumb_text="true" kosmos:bsb_thumb_color="#ffffff" kosmos:bsb_thumb_text_color="#cabf18" kosmos:bsb_touch_to_seek="true" kosmos:bsb_track_color="#d1cccc" kosmos:bsb_track_size="14dp"/>