static get() Returns the device pixel density. Some examples: PixelRatio.get() === 1mdpi Android devices (160 dpi) PixelRatio.get() === 1.5hdpi Android devices (240 dpi) PixelRatio.get() === 2iPhone 4, 4S iPhone 5, 5c, 5s iPhone 6 xhdpi Android devices (320 dpi) PixelRatio.get() === 3iPhone 6 plus xxhdpi Android devices (480 dpi) PixelRatio.get() === 3.5Nexus 6

systemIcon enum('bookmarks', 'contacts', 'downloads', 'favorites', 'featured', 'history', 'more', 'most-recent', 'most-viewed', 'recents', 'search', 'top-rated') Items comes with a few predefined system icons. Note that if you are using them, the title and selectedIcon will be overridden with the system ones.

getTranslateTransform() Converts {x, y} into a useable translation transform, e.g. style={{ transform: this.state.anim.getTranslateTransform() }}

iosonError function Invoked on load error with {nativeEvent: {error}}

onShowUnderlay function Called immediately after the underlay is shown

getAlert() Gets the notification's main message from the aps object

static show(message, duration)

popN(n: number) Go back N pages at once. When N=1, behavior matches pop()

selectTextOnFocus bool If true, all text will automatically be selected on focus

showsUserLocation bool If true the app will ask for the user's location and display it on the map. Default value is false. NOTE: on iOS, you need to add the NSLocationWhenInUseUsageDescription key in Info.plist to enable geolocation, otherwise it will fail silently.