Fix ListView losing scroll position

Restrict restoring the selected position when AdapterView
gets restored for Spinner instances only.

Bug: 26991402
Bug: 23619366
Change-Id: Ib002eac5ed0b8810a3e9988ad36f03450cb03b9b

core/java/android/widget/AbsSpinner.java

@@ -356,10 +356,18 @@ public abstract class AbsSpinner extends AdapterView<SpinnerAdapter> {
                     return mFirstPosition + i;
                 }
             }
-        } 
+        }
         return INVALID_POSITION;
     }
-    
+
+    @Override
+    protected void dispatchRestoreInstanceState(SparseArray<Parcelable> container) {
+        super.dispatchRestoreInstanceState(container);
+        // Restores the selected position when Spinner gets restored,
+        // rather than wait until the next measure/layout pass to do it.
+        handleDataChanged();
+    }
+
     static class SavedState extends BaseSavedState {
         long selectedId;
         int position;

core/java/android/widget/AdapterView.java

@@ -815,7 +815,6 @@ public abstract class AdapterView<T extends Adapter> extends ViewGroup {
     @Override
     protected void dispatchRestoreInstanceState(SparseArray<Parcelable> container) {
         dispatchThawSelfOnly(container);
-        handleDataChanged();
     }
 
     class AdapterDataSetObserver extends DataSetObserver {