React Relay Modern QueryRenderer + PaginationController.

index.js

// @flow
import * as React from 'react';
import { View, Text, StyleSheet, ActivityIndicator } from 'react-native';
import { QueryRenderer, graphql } from 'react-relay';
import type {
  NavigationScreenProp,
  NavigationRoute,
  NavigationContainer
} from 'react-navigation';

import RelayEnv from './../../graphql/Environment';
import NewsList from './containers/NewsList';

import Constants from '../../libs/constants';

type Props = {
  navigation: NavigationScreenProp<NavigationRoute>
};

export default class NewsHome extends React.Component<Props> {
  render() {
    return (
      <QueryRenderer
        environment={RelayEnv.environment}
        variables={{ count: Constants.NEWS_ITEMS_PER_PAGE, after: '' }}
        query={graphql`
          query newsHomeQuery($count: Int!, $after: ID) {
            viewer {
              ...NewsList_viewer
            }
          }
        `}
        render={({ error, props, retry }) => {
          if (props) {
            return <NewsList {...props} navigation={this.props.navigation} />;
          }
          return (
            <View
              style={{
                flex: 1,
                justifyContent: 'center',
                alignItems: 'center'
              }}>
              <ActivityIndicator size="large" />
            </View>
          );
        }}
      />
    );
  }
}

NewsList.js

export default createPaginationContainer(
  NewsList,
  {
    viewer: graphql`
      fragment NewsList_viewer on User {
        news(first: $count, after: $after) @connection(key: "NewsList_news") {
          edges {
            node {
              id
              ...NewsItem_item
            }
          }
          pageInfo {
            hasNextPage
            endCursor
          }
        }
      }
    `
  },
  {
    direction: 'forward',
    getConnectionFromProps(props) {
      return props.viewer && props.viewer.news;
    },
    // This is also the default implementation of `getFragmentVariables` if it isn't provided.
    getFragmentVariables(prevVars, totalCount) {
      return {
        ...prevVars,
        count: totalCount
      };
    },
    getVariables(props, paginationInfo, fragmentVariables) {
      return {
        count: paginationInfo.count,
        after: paginationInfo.cursor
      };
    },
    query: graphql`
      query NewsListForwardQuery($count: Int!, $after: ID) {
        viewer {
          ...NewsList_viewer
        }
      }
    `
  }
);

Bear in mind, viewer its the current logged in user, and so, im quering post that belongs to the current logged in user.