Awesome, It was disapeared when I touch/scroll ??

[Thien658jjh]

    <com.github.naz013.awcalendar.AwesomeCalendarView
        android:id="@+id/calendar_view"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        app:ac_day_bg_color="@color/colorPrimary"
        app:ac_day_border_color="#ffffff"
        app:ac_day_current_text_color="#ff0000"
        app:ac_day_text_color="#ffffff"
        app:ac_day_unselected_text_color="#40ffffff"
        app:ac_event_color="#acacac"
        app:ac_highlight_out_of_bounds_days="true"
        app:ac_show_weekday_mark="true"
        app:ac_start_day_of_week="monday"
        app:ac_type="both"
        app:ac_weekday_mark_text_color="#77ff55" />

did I do somethings wrong ?