package nodomain.freeyourgadget.gadgetbridge.activities.charts; import java.util.Date; import nodomain.freeyourgadget.gadgetbridge.impl.GBDevice; public interface ChartsHost { static final String DATE_PREV = ChartsActivity.class.getName().concat(".date_prev"); static final String DATE_NEXT = ChartsActivity.class.getName().concat(".date_next"); static final String REFRESH = ChartsActivity.class.getName().concat(".refresh"); GBDevice getDevice(); void setStartDate(Date startDate); void setEndDate(Date endDate); Date getStartDate(); Date getEndDate(); void setDateInfo(String dateInfo); }