我想将一些文件上传到我的Firebase数据库，上传成功，但是页面上显示 <View style={{ flexDirection: 'row', justifyContent: 'space-between' }}>
<View
style={{
width: Dimensions.get('screen').width / 2 - 20,
height: 3,
borderStyle: 'solid',
backgroundColor: 'black',
marginBottom: 15,
marginTop: 8,
left: 0,
}}
/>
<Text
style={[
{
fontSize: 18,
padding: 5,
marginBottom: 10,
color: 'black',
},
global.fontNormal,
]}>
{'or'}
</Text>
<View
style={{
width: Dimensions.get('screen').width / 2 - 20,
height: 3,
borderStyle: 'solid',
backgroundColor: 'black',
marginBottom: 15,
marginTop: 8,
right: 0,
}}
/>
</View>
。上传的文件未显示。
TypeError: expected userId to be of type string but was of type undefined