Fix button alignment.

Bug: 14900155
Change-Id: I391fa09fe9c31e3cf07c99ccbcb060c083304641
diff --git a/src/com/android/dialer/DialtactsActivity.java b/src/com/android/dialer/DialtactsActivity.java
index ea1f60c..5717875 100644
--- a/src/com/android/dialer/DialtactsActivity.java
+++ b/src/com/android/dialer/DialtactsActivity.java
@@ -1010,12 +1010,12 @@
             mFloatingActionButton.setImageResource(R.drawable.fab_ic_call);
             mFloatingActionButton.setContentDescription(
                     getResources().getString(R.string.description_dial_button));
-            alignFloatingActionButtonByTab(mCurrentTabPosition);
+            alignFloatingActionButtonMiddle();
         } else {
             mFloatingActionButton.setImageResource(R.drawable.fab_ic_dial);
             mFloatingActionButton.setContentDescription(
                     getResources().getString(R.string.action_menu_dialpad_button));
-            alignFloatingActionButtonMiddle();
+            alignFloatingActionButtonByTab(mCurrentTabPosition);
         }
     }