message: Hide NavigationBar on Android by setting `hidden` prop.
diff: @@ -2,6 +2,10 @@ import React from 'react';
  import { requireNativeComponent, Image, Platform } from 'react-native';
  class NavigationBar extends React.Component<any, any> {
  render() {
  + if (Platform.OS == "android" && this.props.hidden) {
  + return null
  + }
  +
  const nativeProps = {...this.props};
  if (this.props.logo) {
  nativeProps.logo = Image.resolveAssetSource(this.props.logo);
  