message: Scrolled content under bar with large titles
  When ios large titles are on the content needs to be wrapped in a ScrollView. Otherwise the navigation bar went fully transparent and it doesn't scroll properly when clicking search and then cancel twice.
diff: import React from 'react';
  -import {StyleSheet, ScrollView, View, TouchableHighlight} from 'react-native';
  +import {StyleSheet, Platform, ScrollView, View, TouchableHighlight} from 'react-native';
  import {NavigationContext} from 'navigation-react';
  import {SharedElementAndroid, NavigationBar, SearchBarIOS} from 'navigation-react-native';
  @@ -30,6 +30,10 @@ const Colors = ({colors, children}) => (
  </NavigationContext.Consumer>
  );
  +const Container = (props) => (
  + Platform.OS === 'ios' ? <ScrollView {...props}/> : <>{props.children}</>
  +);
  +
  export default class Grid extends React.Component {
  constructor(props) {
  super(props);
  @@ -42,7 +46,9 @@ export default class Grid extends React.Component {
  color.indexOf(text.toLowerCase()) !== -1
  ));
  return (
  - <>
  + <Container
  + style={styles.scene}
  + contentInsetAdjustmentBehavior="automatic">
  <NavigationBar largeTitle={true} title="Colors">
  <SearchBarIOS
  text={text}
  @@ -53,7 +59,7 @@ export default class Grid extends React.Component {
  </SearchBarIOS>
  </NavigationBar>
  <Colors colors={colors} />
  - </>
  + </Container>
  );
  }
  }
  