[DatePicker] Fixed incorrect date being selected on scrollable months.

Resolves #1973 PiperOrigin-RevId: 351396382 (cherry picked from commit db42490)
material-components · Jan 14, 2021 · d523523 · d523523
1 parent 814ce6d
commit d523523
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/lib/java/com/google/android/material/datepicker/MonthAdapter.java b/lib/java/com/google/android/material/datepicker/MonthAdapter.java
@@ -158,7 +158,10 @@ private void updateSelectedStateForDate(MaterialCalendarGridView monthGrid, long
       // Validate that the day is in the right month.
       int day = month.getDayOfMonth(date);
       updateSelectedState(
-          (TextView) monthGrid.getChildAt(monthGrid.getAdapter().dayToPosition(day)), date);
+          (TextView)
+              monthGrid.getChildAt(
+                  monthGrid.getAdapter().dayToPosition(day) - monthGrid.getFirstVisiblePosition()),
+          date);
     }
   }