我正在使用这个零食作为实现我自己的轮播组件的模板。此模板使用类组件,我将其转换为功能组件
https://snack.expo.io/@bd-arc/react-native-snap-carousel-%7C-example-with-custom-interpolations
我将此添加到我的项目中,并且我相信在渲染 Carousel 时发生了一些错误,但我无法判断。它渲染 - 但并非所有组件都在渲染。我只是将 Carousel 本身更改为一个功能组件。问题是旋转木马下方没有显示 - 如果我添加多个 VideoCarousel,则仅显示第一个。
我的代码如下
应用程序.js
import React from 'react';
import { View } from 'react-native';
import Header from './components/header';
import VideoCarousel from './components/videoCarousel';
import tailwind from 'tailwind-rn';
const App = () => {
return (
<View style={tailwind('flex pt-12 items-center bg-gray-300 h-full')}>
<Header />
<VideoCarousel />
<VideoCarousel />
</View>
)
};
export default App;
VideoCarousel.js
import React, { useState } from 'react';
import { Text, View, Dimensions, StyleSheet, Alert } from 'react-native';
import Carousel from 'react-native-snap-carousel'; // Version can be specified in package.json
import { scrollInterpolator, animatedStyles } from './../utils/animations';
const SLIDER_WIDTH = Dimensions.get('window').width;
const ITEM_WIDTH = Math.round(SLIDER_WIDTH * 0.7);
const ITEM_HEIGHT = Math.round(ITEM_WIDTH * 3 / 4);
const DATA = [];
for (let i = 0; i < 10; i++) {
DATA.push(i)
}
const VideoCarousel = () => {
const [index, setIndex] = useState(0);
_renderItem = (index) => {
return (
<View style={styles.itemContainer}>
<Text style={styles.itemLabel}>{`Item ${index.index}`}</Text>
</View>
);
}
return (
<View>
<Carousel
data={DATA}
renderItem={this._renderItem}
sliderWidth={SLIDER_WIDTH}
itemWidth={ITEM_WIDTH}
containerCustomStyle={styles.carouselContainer}
inactiveSlideShift={0}
onSnapToItem={(index) => setIndex(index)}
scrollInterpolator={scrollInterpolator}
slideInterpolatedStyle={animatedStyles}
useScrollView={true}
/>
<Text style={styles.counter}>
Test
</Text>
</View>
);
}
const styles = StyleSheet.create({
carouselContainer: {
marginTop: 50
},
itemContainer: {
width: ITEM_WIDTH,
height: ITEM_HEIGHT,
alignItems: 'center',
justifyContent: 'center',
backgroundColor: 'dodgerblue'
},
itemLabel: {
color: 'white',
fontSize: 24
},
counter: {
marginTop: 400,
fontSize: 30,
fontWeight: 'bold',
textAlign: 'center',
backgroundColor: "black",
}
});
export default VideoCarousel;