Fix bug 2531732 - DateTimeView explodes on bad system date format.

Fall back to a default date format instead of throwing an exception.

Change-Id: I827a81d9610ea7f9243c1c33579e7a5d3b423692

core/java/android/widget/DateTimeView.java

@@ -206,7 +206,12 @@ public class DateTimeView extends TextView {
         if (format == null || "".equals(format)) {
             return DateFormat.getDateInstance(DateFormat.SHORT);
         } else {
-            return new SimpleDateFormat(format);
+            try {
+                return new SimpleDateFormat(format);
+            } catch (IllegalArgumentException e) {
+                // If we tried to use a bad format string, fall back to a default.
+                return DateFormat.getDateInstance(DateFormat.SHORT);
+            }
         }
     }