Null pointer exception when deleting items by calling delete()

[easdue]

When you call delete with a position of a listItem that is not visible you get a nullpointer exception because you try to animate a null view.

java.lang.NullPointerException: Attempt to invoke virtual method 'android.view.ViewPropertyAnimator android.view.View.animate()' on a null object reference
at com.nineoldandroids.view.ViewPropertyAnimatorICS.(ViewPropertyAnimatorICS.java:22)
at com.nineoldandroids.view.ViewPropertyAnimator.animate(ViewPropertyAnimator.java:62)
at de.timroes.android.listview.EnhancedListView.slideOutView(EnhancedListView.java:615)
at de.timroes.android.listview.EnhancedListView.delete(EnhancedListView.java:592)