Shift back to previous week

src/main/java/com/skedgo/android/weekpicker/WeekFragment.java

@@ -67,6 +67,17 @@ protected static ArrayList<Date> getDateRangeWithWeekStart(Calendar selectedDate
     ArrayList<Date> dateRange = new ArrayList<Date>();
     Calendar calendar = (Calendar) selectedDate.clone();
     calendar.set(Calendar.DAY_OF_WEEK, convertJodaTimeToCalendar(weekStart));
+
+    // For example, selected date is Monday and the week start is next Tuesday.
+    // If we don't shift back to previous week, the picker will show the week 
+    // starting from next Tuesday. That will hide the selected date.
+    // We expect the picker to show the selected date, that's why we need
+    // to shift back.
+    if (calendar.after(selectedDate)) {
+      // Shift back to previous week.
+      calendar.add(Calendar.DATE, -7);
+    }
+
     for (int i = 0; i < Calendar.DAY_OF_WEEK; i++) {
       Date date = calendar.getTime();
       dateRange.add(date);
@@ -271,4 +282,4 @@ public static boolean isSameDay(Calendar cal1, Calendar cal2) {
           cal1.get(Calendar.DAY_OF_YEAR) == cal2.get(Calendar.DAY_OF_YEAR));
     }
   }
-}
+}