Restore original scroll position on =

Bug: 22041219

Restore default scrolling position when hitting enter after scrolling
an instant display result.

We could instead preserve the position and fix the display logic to
no longer get confused by a non-default initial position.  But this
feels more natural to me.

Change-Id: I43bb936b5bb1b5af7a7befb90fdfc0f745fb7729

1 files changed, 5 insertions, 2 deletions

diff --git a/src/com/android/calculator2/Evaluator.java b/src/com/android/calculator2/Evaluator.java
index 666790a..081f843 100644
--- a/src/com/android/calculator2/Evaluator.java
+++ b/src/com/android/calculator2/Evaluator.java
@@ -818,8 +818,11 @@ class Evaluator {
             // Notify immediately, reusing existing result.
             int dotPos = mCache.indexOf('.');
             String truncatedWholePart = mCache.substring(0, dotPos);
-            int leastDigPos = getLsd(mRatVal, mCache, dotPos);
-            mCalculator.onEvaluate(mLastDigs, getMsd(), leastDigPos, truncatedWholePart);
+            int leastDigOffset = getLsd(mRatVal, mCache, dotPos);
+            int msdIndex = getMsd();
+            int preferredPrecOffset = getPreferredPrec(mCache, msdIndex, leastDigOffset);
+            mCalculator.onEvaluate(preferredPrecOffset, msdIndex, leastDigOffset,
+                    truncatedWholePart);
         }
     }