React native React Native backgroundImage不与flatlist的元素一起工作
我试图将图片imageBackground作为平面列表的一个元素调用,但出现以下错误消息: “无效呼叫” 如果我真的喜欢这工作React native React Native backgroundImage不与flatlist的元素一起工作,react-native,React Native,我试图将图片imageBackground作为平面列表的一个元素调用,但出现以下错误消息: “无效呼叫” 如果我真的喜欢这工作 <FlatList horizontal={true} showsVerticalScrollIndicator={false} showsHorizontalScrollIndicator={false}
<FlatList
horizontal={true}
showsVerticalScrollIndicator={false}
showsHorizontalScrollIndicator={false}
data={this.state.newDataCards}
keyExtractor={(item) => item.id.toString()}
renderItem={({item}) => {
const image = './../assets/galaxy.jpg' // HERE ITS OK
return (
<TouchableHighlight onPress={() => alert(item.description)}>
<View style={styles.card_container}>
<ImageBackground source={require(image)} style={styles.card_image} imageStyle={{ borderRadius: 6, resizeMode: 'contain' }} >
</ImageBackground>
</View>
</TouchableHighlight>
)
}
}
/>
item.id.toString()}
renderItem={({item})=>{
const image='./../assets/galaxy.jpg'//这里没问题
返回(
警报(项目说明)}>
)
}
}
/>
但是,如果我试图用item.url\u img获取“const image”,但这不起作用:
<FlatList
horizontal={true}
showsVerticalScrollIndicator={false}
showsHorizontalScrollIndicator={false}
data={this.state.newDataCards}
keyExtractor={(item) => item.id.toString()}
renderItem={({item}) => {
const image = item.url_img // HERE ITS NOT OK
return (
<TouchableHighlight onPress={() => alert(item.description)}>
<View style={styles.card_container}>
<ImageBackground source={require(image)} style={styles.card_image} imageStyle={{ borderRadius: 6, resizeMode: 'contain' }} >
</ImageBackground>
</View>
</TouchableHighlight>
)
}
}
/>
item.id.toString()}
renderItem={({item})=>{
const image=item.url\u img//此处不正常
返回(
警报(项目说明)}>
)
}
}
/>
my item.url\u img return:“../../assets/galaxy.jpg”如React Native所说
将您的this.state.newDataCards
更改为
[
{
id:1,
url_img : require('./../assets/galaxy.jpg'),
},
{
id:2,
url_img : require('./../assets/galaxy.jpg'),
},
.
. and so on
]
而您的平面列表
也可以
<FlatList
horizontal={true}
showsVerticalScrollIndicator={false}
showsHorizontalScrollIndicator={false}
data={this.state.newDataCards}
keyExtractor={(item) => item.id.toString()}
renderItem={({ item }) => {
return (
<TouchableHighlight onPress={() => alert(item.description)}>
<View style={styles.card_container}>
<ImageBackground
source={item.url_img}
style={styles.card_image}
imageStyle={{
borderRadius: 6,
resizeMode: 'contain',
}}></ImageBackground>
</View>
</TouchableHighlight>
);
}}
/>
item.id.toString()}
renderItem={({item})=>{
返回(
警报(项目说明)}>
);
}}
/>
确实如此。在文档中遗漏了这个,谢谢!!
[
{
id:1,
url_img : require('./../assets/galaxy.jpg'),
},
{
id:2,
url_img : require('./../assets/galaxy.jpg'),
},
.
. and so on
]
<FlatList
horizontal={true}
showsVerticalScrollIndicator={false}
showsHorizontalScrollIndicator={false}
data={this.state.newDataCards}
keyExtractor={(item) => item.id.toString()}
renderItem={({ item }) => {
return (
<TouchableHighlight onPress={() => alert(item.description)}>
<View style={styles.card_container}>
<ImageBackground
source={item.url_img}
style={styles.card_image}
imageStyle={{
borderRadius: 6,
resizeMode: 'contain',
}}></ImageBackground>
</View>
</TouchableHighlight>
);
}}
/>