iosdefaultSource {uri: string, width: number, height: number, scale: number}, number A static image to display while loading the image source.

ioscapInsets {top: number, left: number, bottom: number, right: number} When the image is resized, the corners of the size specified by capInsets will stay a fixed size, but the center content and borders of the image will be stretched. This is useful for creating resizable rounded buttons, shadows, and other resizable assets. More info on Apple documentation

iosblurRadius number blurRadius: the blur radius of the blur filter added to the image

iosaccessible bool When true, indicates the image is an accessibility element.

iosaccessibilityLabel string The text that's read by the screen reader when the user interacts with the image.

Gesture recognition on mobile devices is much more complicated than web. A touch can go through several phases as the app determines what the user's intention is. For example, the app needs to determine if the touch is scrolling, sliding on a widget, or tapping. This can even change during the duration of a touch. There can also be multiple simultaneous touches. The touch responder system is needed to allow components to negotiate these touch interactions without any additional knowledge about

static watchPosition(success, error?, options?) Invokes the success callback whenever the location changes. Supported options: timeout (ms), maximumAge (ms), enableHighAccuracy (bool), distanceFilter(m)

static stopObserving()

static getCurrentPosition(geo_success, geo_error?, geo_options?) Invokes the success callback once with the latest location info. Supported options: timeout (ms), maximumAge (ms), enableHighAccuracy (bool) On Android, this can return almost immediately if the location is cached or request an update, which might take a while.

static clearWatch(watchID)