如何向Apollo示例添加下拉刷新

Question

如何在apollo客户端演示http://dev.apollodata.com/中添加拉刷新功能?

似乎graphql函数是一个包装器或工厂函数，创建一个graphql组件?我应该如何在graphql组件上实现像拉刷新这样的功能?

import React from 'react';
import { Text, View } from 'react-native';
import { graphql } from 'react-apollo';
import gql from 'graphql-tag';
const styles = {
  outer: { paddingTop: 22 },
  wrapper: { height: 45, flex: 1, flexDirection: 'row' },
  header: { fontSize: 20 },
  subtextWrapper: { flex: 1, flexDirection: 'row' },
  votes: { color: '#999' },
}
// The data prop, which is provided by the wrapper below contains,
// a `loading` key while the query is in flight and posts when ready
function PostList({ data: { loading, posts } }) {
  if (loading) {
    return <Text style={styles.outer}>Loading</Text>;
  } else {
    return (
      <View style={styles.outer}>
        {posts.sort((x, y) => y.votes - x.votes).map(post => (
          <View key={post.id} style={styles.wrapper}>
            <View>
              <Text style={styles.header}>{post.title}</Text>
              <View style={styles.subtextWrapper}>
              <Text>
                by {post.author.firstName} {' '}
                {post.author.lastName} {' '}
              </Text>
              <Text style={styles.votes}>{post.votes} votes</Text>
              </View>
            </View>
          </View>
        ))}
      </View>
    );
  }
}
// The `graphql` wrapper executes a GraphQL query and makes the results
// available on the `data` prop of the wrapped component (PostList here)
export default graphql(gql`
  query allPosts {
    posts {
      id
      title
      votes
      author {
        id
        firstName
        lastName
      }
    }
  }
`)(PostList);

Answer 1

graphql()在props.data上传递refetch()方法。当用户下拉时，调用props.data.refetch()应该为您完成此操作。