question: public ChooserIntentBuilder priority ( String ... packageNames ) { mIntent . putExtra ( BottomSheetChooserActivity . EXTRA_PRIORITY_PACKAGES , new ArrayList < > ( Arrays . asList ( packageNames ) ) ) ; return this ; }
target:  Sets the items which should be listed first in the chooser. First item in the list will be shown first. If history is enabled, history items will appear before the priority items.