我正在尝试在 react-native 中做可折叠的平面列表,但有一个问题。平面列表卡中有 5 个文本。如果我再放一个文本行(或可触摸的不透明度)并单击折叠,应用程序停止工作并关闭.日志上没有错误/警告消息。为什么会发生这种情况以及任何解决方案?
import React, { useEffect, useState } from 'react';
import { StyleSheet, Text, View, StatusBar, TouchableOpacity, TextInput } from 'react-native';
import { SafeAreaView } from 'react-navigation';
import * as firebase from 'firebase';
import { FlatList } from 'react-native-gesture-handler';
import { Transition, Transitioning } from 'react-native-reanimated';
const transition = (
<Transition.Together>
<Transition.In type="fade" durationMs={200} />
<Transition.Change />
<Transition.Out type="fade" durationMs={200} />
</Transition.Together>
)
const App = () => {
const [filteredData, setfilteredData] = useState([]);
const [search, setsearch] = useState('');
const [items, setitems] = useState([]);
const [CurrentIndex, setCurrentIndex] = useState(null);
const ref = React.useRef();
useEffect(() => {
getItems();
return () => {
}
}, [])
const searchFilter = (text) => {
if (text) {
const newData = items.filter((item) => {
const itemData = item.title ? item.title.toUpperCase() : ''.toUpperCase();
const textData = text.toUpperCase();
return itemData.indexOf(textData) > -1;
});
setfilteredData(newData);
setsearch(text);
} else {
setfilteredData(items);
setsearch(text);
}
}
const ItemSeperatorView = () => {
return (
<View
style={{ height: 0.5, width: '100%', backgroundColor: 'black', marginBottom: 3 }}
/>
)
}
const getItems = () => {
firebase.database().ref('/coordinates')
.orderByChild('description')
.once('value', snapshot => {
var storeItems = [];
snapshot.forEach(function (snap) {
var info = snap.val();
info.key = snap.key;
storeItems.push(info);
});
setitems(storeItems);
setfilteredData(storeItems);
});
}
return (
<SafeAreaView style={{ flex: 1 }}>
<Transitioning.View
style={styles.container}
transition={transition}
ref={ref}
>
<TextInput
style={styles.textInputStyle}
value={search}
placeholder="Aramak istediğini yaz"
underlineColorAndroid="transparent"
onChangeText={(text) => searchFilter(text)}
/>
<FlatList
data={filteredData}
style={styles.cardContainer}
renderItem={({ item }) => (
<TouchableOpacity onPress={() => {
ref.current.animateNextTransition();
setCurrentIndex(item.key === CurrentIndex ? null : item.key);
}}>
<View style={styles.card}>
<Text style={styles.heading}>{item.title}</Text>
{item.key === CurrentIndex && (
<View style={styles.subCategoriesList}>
<Text>Store Owner: {item.owner_name}</Text>
<Text>Store Owner Email: {item.owner_email}</Text>
<Text>Store Latitude: {item.latitude}</Text>
<Text>Store Longitude: {item.longitude}</Text>
<Text>Store Longitude: {item.description}</Text>
//*This is where I try to add text*
</View>)}
</View>
</TouchableOpacity>
)}
ItemSeparatorComponent={ItemSeperatorView}
/>
</Transitioning.View>
</SafeAreaView>
);
};
const styles = StyleSheet.create({
container: {
flex: 1,
backgroundColor: 'black',
justifyContent: 'center',
},
card: {
flexGrow: 1,
alignItems: 'center',
justifyContent: 'center',
backgroundColor: '#c8c8c8',
minHeight:100,
borderRadius:10,
borderWidth: 0,
},
cardContainer:{
flexGrow:1,
paddingRight:3,
paddingLeft:3,
},
heading: {
fontSize: 20,
},
subCategoriesList: {
marginTop:5,
marginBottom:10,
fontSize: 14,
textAlign: 'center',
},
textInputStyle: {
height: 50,
borderWidth: 1,
paddingLeft: 20,
margin: 3,
borderColor: 'black',
backgroundColor: 'white',
borderRadius: 15,
marginBottom:4,
left:1,
},
directionButton:{
alignItems:'center',
justifyContent:'center',
marginTop:5,
marginBottom:3,
backgroundColor:'red',
margin:'auto',
}
});
export default App;