fix bug of wrong selection when itemAdded is triggered

When items are added at the same time that setSelection()
is called,  we incorrectly apply the offset to the position that
user wants to select.  Disable the offset when target view
hasn't created yet.

Bug 20672263

Change-Id: Iaf990b58109d005ef04d9a47029e5c0a493bb8c3
2 files changed