js__react_native__fb/components/ActivityIndicator.js

import React from 'react';
import {
  ActivityIndicator,
  StyleSheet,
  View,
} from 'react-native';

const styles = StyleSheet.create({
  container: {
    flex: 1,
    justifyContent: 'center',
  },
  horizontal: {
    flexDirection: 'row',
    justifyContent: 'space-around',
    padding: 10,
  },
});

class App extends React.Component {
  render() {
    return (
      // - size as a number is only valid on Android (actually crashes, though)
      // - color defaults to 'gray', supports #xxxx, rgb(), rgba(), hsl(), hsla()
      // - hidesWhenStopped only works on iOS.
      <View style={[styles.container, styles.horizontal]}>
        <ActivityIndicator size="large" color="#0000ff" />
        <ActivityIndicator size="small" color="#00ff00" hidesWhenStopped={false} animating={false} />
        <ActivityIndicator size="small" color="red" />
        <ActivityIndicator size="large" color="#0002" />
      </View>
    );
  }
}

export default App;