react-native/RNTester/js/SegmentedControlIOSExample.js

/**
 * Copyright (c) 2015-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 *
 * @flow
 * @providesModule SegmentedControlIOSExample
 */
'use strict';

var React = require('react');
var ReactNative = require('react-native');
var {
  SegmentedControlIOS,
  Text,
  View,
  StyleSheet
} = ReactNative;

class BasicSegmentedControlExample extends React.Component<{}> {
  render() {
    return (
      <View>
        <View style={{marginBottom: 10}}>
          <SegmentedControlIOS values={['One', 'Two']} />
        </View>
        <View>
          <SegmentedControlIOS values={['One', 'Two', 'Three', 'Four', 'Five']} />
        </View>
      </View>
    );
  }
}

class PreSelectedSegmentedControlExample extends React.Component<{}> {
  render() {
    return (
      <View>
        <View>
          <SegmentedControlIOS values={['One', 'Two']} selectedIndex={0} />
        </View>
      </View>
    );
  }
}

class MomentarySegmentedControlExample extends React.Component<{}> {
  render() {
    return (
      <View>
        <View>
          <SegmentedControlIOS values={['One', 'Two']} momentary={true} />
        </View>
      </View>
    );
  }
}

class DisabledSegmentedControlExample extends React.Component<{}> {
  render() {
    return (
      <View>
        <View>
          <SegmentedControlIOS enabled={false} values={['One', 'Two']} selectedIndex={1} />
        </View>
      </View>
    );
  }
}

class ColorSegmentedControlExample extends React.Component<{}> {
  render() {
    return (
      <View>
        <View style={{marginBottom: 10}}>
          <SegmentedControlIOS tintColor="#ff0000" values={['One', 'Two', 'Three', 'Four']} selectedIndex={0} />
        </View>
        <View>
          <SegmentedControlIOS tintColor="#00ff00" values={['One', 'Two', 'Three']} selectedIndex={1} />
        </View>
      </View>
    );
  }
}

class EventSegmentedControlExample extends React.Component<{}, $FlowFixMeState> {
  state = {
    values: ['One', 'Two', 'Three'],
    value: 'Not selected',
    selectedIndex: undefined
  };

  render() {
    return (
      <View>
        <Text style={styles.text} >
          Value: {this.state.value}
        </Text>
        <Text style={styles.text} >
          Index: {this.state.selectedIndex}
        </Text>
        <SegmentedControlIOS
          values={this.state.values}
          selectedIndex={this.state.selectedIndex}
          onChange={this._onChange}
          onValueChange={this._onValueChange} />
      </View>
    );
  }

  _onChange = (event) => {
    this.setState({
      selectedIndex: event.nativeEvent.selectedSegmentIndex,
    });
  };

  _onValueChange = (value) => {
    this.setState({
      value: value,
    });
  };
}

var styles = StyleSheet.create({
  text: {
    fontSize: 14,
    textAlign: 'center',
    fontWeight: '500',
    margin: 10,
  },
});

exports.title = '<SegmentedControlIOS>';
exports.displayName = 'SegmentedControlExample';
exports.description = 'Native segmented control';
exports.examples = [
  {
    title: 'Segmented controls can have values',
    render(): React.Element<any> { return <BasicSegmentedControlExample />; }
  },
  {
    title: 'Segmented controls can have a pre-selected value',
    render(): React.Element<any> { return <PreSelectedSegmentedControlExample />; }
  },
  {
    title: 'Segmented controls can be momentary',
    render(): React.Element<any> { return <MomentarySegmentedControlExample />; }
  },
  {
    title: 'Segmented controls can be disabled',
    render(): React.Element<any> { return <DisabledSegmentedControlExample />; }
  },
  {
    title: 'Custom colors can be provided',
    render(): React.Element<any> { return <ColorSegmentedControlExample />; }
  },
  {
    title: 'Change events can be detected',
    render(): React.Element<any> { return <EventSegmentedControlExample />; }
  }
];