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为了测试平面列表的工作方式，我尝试使用另一个组件来显示其中的项目以实现“renderItem”功能。

这是我呈现 FlatList 的代码：

export default function HomeBody() {
    const data = [];

    let movie1: MediaDetails = {
        title: 'Movie1',
        image: '../../assets/TestImage.png'
    };
    let movie2: MediaDetails = {
        title: 'Movie1',
        image: '../../assets/TestImage.png'
    };
    let movie3: MediaDetails = {
        title: 'Movie1',
        image: '../../assets/TestImage.png'
    };
    let myQueue: SwimlaneItem = {
        title: 'My queue',
        media: [
            movie1,
            movie2,
            movie3,
        ]
    }

    let movie4: MediaDetails = {
        title: 'Movie4',
        image: '../../assets/TestImage.png'
    };
    let movie5: MediaDetails = {
        title: 'Movie5',
        image: '../../assets/TestImage.png'
    };
    let movie6: MediaDetails = {
        title: 'Movie6',
        image: '../../assets/TestImage.png'
    };
    let upcomingQueue: SwimlaneItem = {
        title: 'My queue',
        media: [
            movie4,
            movie5,
            movie6,
        ]
    }

    data.push(myQueue);
    data.push(upcomingQueue);

    return(
        <View style={styles.container}>
            <FlatList 
                style={styles.flatlist}
                data={data}
                renderItem={({ item }: any) => 
                  <Swimlane swimlaneItem={item} />
                }
            />
        </View>
    )
}

这是我的组件“每个项目”或“泳道”：

export default function Swimlane({ swimlaneItem }: any) {
    return (
        <View>
            <Text>{swimlaneItem}</Text>
            {/* <FlatList 
                horizontal
                data={swimLaneItem.media}
                renderItem={({ media }: any) => 
                    <>
                        <Text>{media.title}</Text>
                        <Image source={media.image} />
                    </>
                }
            /> */}
        </View>
    )
}

所以我想要的是让平面列表显示 2 个“通道”或项目，它们是“myQueue”和“upcomingQueue”。每个“通道”将有一个标题和一个媒体数组，其中包含具有“标题”和“图像”的项目。因此，在我的“Swimlane”组件中，我想为文本执行“swimlaneItem.title”，并有另一个平面列表来呈现所有“媒体”对象，这些对象又将具有“标题”和“媒体”属性。

我怎样才能做到这一点？现在抛出以下错误：

"Objects are not valid as a React child (found: object with keys {title, media}). If you meant to render a collection of children, use an array instead"
4

1 回答 1

1

错误的原因是您将整个渲染项对象传递给组件而不是文本期望的字符串

const RenderItem = ({item}) => 
   <View>
    <Text>{item.someKEyWhichIsAstring}<Text/>
    <Image
      style={styles.marker}
      source={item.someKeyWhichIsAnValidUrlString}/>
  <View/>
```

if you're looking have multiple sections you should use a SectionList
https://reactnative.dev/docs/sectionlist
its inherits from flautist (which inherits from ScrollView) and has and API for multiple sections
于 2021-04-21T15:18:05.083 回答