message: Added search bar on Android
diff: import React from 'react';
  import {Platform, StyleSheet, ScrollView, View, TouchableHighlight} from 'react-native';
  import {NavigationContext} from 'navigation-react';
  -import {SharedElementAndroid, NavigationBar, SearchBarIOS} from 'navigation-react-native';
  +import {SharedElementAndroid, NavigationBar, SearchBar, RightBar, BarButton} from 'navigation-react-native';
  const Colors = ({colors, children}) => (
  <NavigationContext.Consumer>
  @@ -31,7 +31,7 @@ const Colors = ({colors, children}) => (
  );
  const Container = (props) => (
  - Platform.OS === 'ios' ? <ScrollView {...props}/> : <>{props.children}</>
  + Platform.OS === 'ios' ? <ScrollView {...props}/> : <View {...props} />
  );
  export default class Grid extends React.Component {
  @@ -48,18 +48,22 @@ export default class Grid extends React.Component {
  return (
  <Container
  style={styles.scene}
  + collapsable={false}
  contentInsetAdjustmentBehavior="automatic">
  <NavigationBar
  largeTitle={true}
  title="Colors"
  barTintColor={Platform.OS === 'android' ? '#fff' : null}>
  - <SearchBarIOS
  + <SearchBar
  text={text}
  autoCapitalize="none"
  obscureBackground={false}
  onChangeText={text => this.setState({text})}>
  <Colors colors={matchedColors} />
  - </SearchBarIOS>
  + </SearchBar>
  + <RightBar>
  + <BarButton title="search" show="always" search={true} />
  + </RightBar>
  </NavigationBar>
  <Colors colors={colors} />
  </Container>
  @@ -70,6 +74,7 @@ export default class Grid extends React.Component {
  const styles = StyleSheet.create({
  scene: {
  backgroundColor: '#fff',
  + flex: 1,
  },
  colors: {
  flexDirection: 'row',
  