Fix strings, stability bug, easy UI & correctness issues

Bug: 20625562
Bug: 20649711
Bug: 20561890
Bug: 20561528
Bug: 20442590
Bug: 15473140
Bug: 20503008
Bug: 20503007

- Improve timeout text.

- Recalculate when Calculator is rotated, e.g. in error state, thus
  reproducing message.  It's unclear this is good enough, but it's
  better.

- Fix square root parsing.

- Fix concatenation of numbers when pasting by adding explicit
  multiplication.

- Display divide by zero error differently from other domain errors.

- Improved advanced keypad layout of portrait-mode tablet calculator.

- Improved overflow menu order.  (More to be done.)

- Report zero division as zero division when we can recognize it.

- Switch to floating menus for copy/paste.

Change-Id: I3875414f293e62a59b0e41f0de822f29bd5ac6a6

1 files changed, 7 insertions, 1 deletions

diff --git a/src/com/android/calculator2/BoundedRational.java b/src/com/android/calculator2/BoundedRational.java
index 04cf86c..d95b52b 100644
--- a/src/com/android/calculator2/BoundedRational.java
+++ b/src/com/android/calculator2/BoundedRational.java
@@ -170,10 +170,16 @@ public class BoundedRational {
         return new BoundedRational(num,den).maybeReduce();
     }
 
+    public static class ZeroDivisionException extends ArithmeticException {
+        public ZeroDivisionException() {
+            super("Division by zero");
+        }
+    }
+
     static BoundedRational inverse(BoundedRational r) {
         if (r == null) return null;
         if (r.mNum.equals(BigInteger.ZERO)) {
-            throw new ArithmeticException("Divide by Zero");
+            throw new ZeroDivisionException();
         }
         return new BoundedRational(r.mDen, r.mNum);
     }