【发布时间】:2021-06-13 21:36:07
【问题描述】:
我一直在寻找一种方法来从 JSON 文件 中获取本地存储在我的项目中的图像路径。 我已经看到建议删除 JSON 文件 并在 .JS 文件 中使用数组的答案,就像这样:
const DATA = [
{
"ID": 0,
"Image": require('../assets/image0.png')
},
{
"ID": 1,
"Image": require('../assets/image1.png')
}
]
问题是我只能使用 JSON 文件 来获取我的数据,这是将 Excel 转换为 JSON 文件 的结果,并且没有其他的。所以假设我有一个 data.json 文件如下:
{
"data": [
{
"ID": 0,
"Image": "require('../assets/image0.png')"
},
{
"ID": 1,
"Image": "require('../assets/image1.png')"
}
]
}
目前,无法使用存储在“图像”属性中的路径作为<Image source = {}/> 中的源来显示图像。有人知道如何保存 JSON 文件并以某种方式获取和使用其中的路径吗?
编辑:
我的结构:
- assets
- favicon.png // Image I want to display
- icon.png // Image I want to display
- screens
- File1.js // Where I want to display images
- images.json // From where to get paths
文件1.js
// Other imports
import assets from "./images.json;
require("../assets/favicon.png");
require("../assets/icon.png");
const File1 = () => {
return (
<View>
{assets.data.map((i) => (
<Image
source={{
uri: require(i.Image.replace("require('", "").replace("')", ""))
}}
resizeMode="contain"
style={styles.logo}
/>
))}
{/*<Image source={require('../assets/favicon.png')}></Image> Its working but not above*/}
</View>
)
};
export default File1;
const styles = StyleSheet.create({
logo: {
height: 80
},
});
images.json
{
"data": [
{
"ID": 0,
"Image": "require('../assets/favicon.png')"
},
{
"ID": 1,
"Image": "require('../assets/icon.png')"
}
]
}
但是得到:
TransformError src\screens\File1.js: src\screens\File1.js:Invalid call at line 323: require(i.Image.replace("require('", "").replace("')", ""))
- node_modules\react-native\Libraries\Utilities\HMRClient.js:320:31 in showCompileError
- node_modules\react-native\Libraries\Utilities\HMRClient.js:227:26 in client.on$argument_1
- node_modules\eventemitter3\index.js:181:21 in emit
- node_modules\metro\src\lib\bundle-modules\HMRClient.js:142:10 in _ws.onmessage
- node_modules\event-target-shim\dist\event-target-shim.js:818:20 in EventTarget.prototype.dispatchEvent
- node_modules\react-native\Libraries\WebSocket\WebSocket.js:231:8 in _eventEmitter.addListener$argument_1
- node_modules\react-native\Libraries\vendor\emitter\EventEmitter.js:189:10 in emit
- node_modules\react-native\Libraries\BatchedBridge\MessageQueue.js:416:4 in __callFunction
- node_modules\react-native\Libraries\BatchedBridge\MessageQueue.js:109:6 in __guard$argument_0
- node_modules\react-native\Libraries\BatchedBridge\MessageQueue.js:364:10 in __guard
- node_modules\react-native\Libraries\BatchedBridge\MessageQueue.js:108:4 in callFunctionReturnFlushedQueue
* [native code]:null in callFunctionReturnFlushedQueue
【问题讨论】:
标签: javascript arrays json react-native