configChecker: CallExpression

interactivePopGestureEnabled bool A Boolean value that indicates whether the interactive pop gesture is

static focus() Requests focus for the given input or view. The exact behavior

onDrawerStateChanged function Function called when the drawer state has changed. The drawer can be in 3

onPageScrollStateChanged function Function called when the page scrolling state has changed. The page scrolling

progress number The progress value (between 0 and 1).

testID string Used to locate this view in end-to-end tests.

systemIcon enum('bookmarks', 'contacts', 'downloads', 'favorites', 'featured', 'history', 'more', 'most-recent', 'most-viewed', 'recents', 'search',

selectedIcon Image.propTypes.source A custom icon when the tab is selected. It is ignored when a system

initialRoute object Specify a route to start on. A route is an object that the navigator will use to identify