React Native：如何正确地将 renderItem 项传递给 FlatList，以便它们可以在另一个组件中呈现？

Question

为了测试平面列表的工作原理，我尝试使用“renderItem”函数的另一个组件来显示其中的项目。

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“每项”或“泳道”组件：

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“泳道”都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。所以在我的“泳道”组件中，我想为文本做“swimlaneItem.title”，并有另一个平面列表来呈现所有“媒体”objects，它又会有一个“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"

Answer 1

错误的原因是您将整个渲染项对象传递给组件而不是 Text 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

React Native：如何正确地将 renderItem 项传递给 FlatList，以便它们可以在另一个组件中呈现？

React Native: how to properly pass renderItem items to FlatList, so they can be rendered in another component?

jsx

react-native

react-flatlist