lbry-android/app/src/page/settings/view.js

import React from 'react';
import { SETTINGS } from 'lbry-redux';
import { Text, View, ScrollView, Switch, NativeModules } from 'react-native';
import { navigateBack } from 'utils/helper';
import PageHeader from 'component/pageHeader';
import settingsStyle from 'styles/settings';

class SettingsPage extends React.PureComponent {
  static navigationOptions = {
    title: 'Settings'
  }

  componentDidMount() {
    this.props.pushDrawerStack();
  }

  render() {
    const {
      backgroundPlayEnabled,
      drawerStack,
      keepDaemonRunning,
      navigation,
      popDrawerStack,
      showNsfw,
      setClientSetting
    } = this.props;

    // default to true if the setting is null or undefined
    const actualKeepDaemonRunning = (keepDaemonRunning === null || keepDaemonRunning === undefined) ? true : keepDaemonRunning;

    return (
      <View style={settingsStyle.container}>
        <PageHeader title={"Settings"}
          onBackPressed={() => navigateBack(navigation, drawerStack, popDrawerStack)} />
        <ScrollView style={settingsStyle.scrollContainer}>
          <View style={settingsStyle.row}>
            <View style={settingsStyle.switchText}>
              <Text style={settingsStyle.label}>Enable background media playback</Text>
              <Text style={settingsStyle.description}>Enable this option to play audio or video in the background when the app is suspended.</Text>
            </View>
            <View style={settingsStyle.switchContainer}>
              <Switch value={backgroundPlayEnabled} onValueChange={(value) => setClientSetting(SETTINGS.BACKGROUND_PLAY_ENABLED, value)} />
            </View>
          </View>

          <View style={settingsStyle.row}>
            <View style={settingsStyle.switchText}>
              <Text style={settingsStyle.label}>Show NSFW content</Text>
            </View>
            <View style={settingsStyle.switchContainer}>
              <Switch value={showNsfw} onValueChange={(value) => setClientSetting(SETTINGS.SHOW_NSFW, value)} />
            </View>
          </View>

          <View style={settingsStyle.row}>
            <View style={settingsStyle.switchText}>
              <Text style={settingsStyle.label}>Keep the daemon background service running after closing the app</Text>
              <Text style={settingsStyle.description}>Enable this option for quicker app launch and to keep the synchronisation with the blockchain up to date.</Text>
            </View>
            <View style={settingsStyle.switchContainer}>
              <Switch value={actualKeepDaemonRunning} onValueChange={(value) => {
                setClientSetting(SETTINGS.KEEP_DAEMON_RUNNING, value);
                if (NativeModules.DaemonServiceControl) {
                  NativeModules.DaemonServiceControl.setKeepDaemonRunning(value);
                }
              }} />
            </View>
          </View>
        </ScrollView>
      </View>
    );
  }
}

export default SettingsPage;