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App.js
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App.js
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import React, { useState } from 'react';
import { StyleSheet, Text, View, Alert, SafeAreaView, ScrollView } from 'react-native';
import { StatusBar } from 'expo-status-bar';
import XLSX from 'xlsx';
import * as DocumentPicker from 'expo-document-picker';
import { FileSystem } from 'react-native-unimodules';
import { RectButton } from 'react-native-gesture-handler';
export default function App() {
const [data, setData] = useState();
// function picker file
handleDocument = async () => {
try {
const fileDoc = await DocumentPicker.getDocumentAsync({
type: 'application/vnd.openxmlformats-officedocument.spreadsheetml.sheet'
});
if(fileDoc.type === "cancel") {
return
}
if(fileDoc.type !== 'success'){
return Alert.alert('Não foi possivel carregar o arquivo');
}
await FileSystem.readAsStringAsync(`${fileDoc.uri}`, {encoding: FileSystem.EncodingType.Base64})
.then(b64 => XLSX.read(b64, {type: 'base64'}))
.then(workbook => {
const worksheetName = workbook.SheetNames[0];
const worksheet = workbook.Sheets[worksheetName];
const dataFile = XLSX.utils.sheet_to_json(worksheet, {header: 0});
setData(dataFile);
});
} catch (err) {
Alert.alert('Erro ao carregar arquivo!');
}
}
//
return (
<SafeAreaView style={{flex: 1}}>
<View style={styles.container}>
<View style={styles.viewComponent}>
<RectButton style={styles.button} onPress={handleDocument}>
<Text style={
{
color: '#fff',
fontSize: 16,
}}
>
IMPORTAR ARQUIVO DE PLANILHA
</Text>
</RectButton>
<ScrollView style={styles.viewData} showsVerticalScrollIndicator={false}>
{data ?
data.map(infos => { return(
<View key={infos.nomes}>
<Text style={styles.textInfo}>Nome: {infos.nomes}</Text>
<Text style={styles.textInfo}>Sobrenome: {infos.sobrenomes}</Text>
<View style={{
marginVertical: 10,
borderBottomWidth: 1,
borderBottomColor: "#E4E4E4"}}
/>
</View>
)}) : <Text>Clique em IMPORT XLSX</Text>
}
</ScrollView>
</View>
<StatusBar style="light" backgroundColor= "#075E33"/>
</View>
</SafeAreaView>
);
}
const styles = StyleSheet.create({
container: {
flex: 1,
top: StatusBar.currentHeight,
backgroundColor: '#E9F2EF',
},
viewComponent: {
top: 60,
marginBottom: 130,
alignItems: 'center',
marginHorizontal: 20,
},
button: {
height: 50,
width: '100%',
backgroundColor: '#0D9D57',
alignItems: 'center',
justifyContent: 'center',
paddingHorizontal: 8,
marginBottom: 20,
borderRadius: 8,
shadowColor: '#000',
shadowRadius: 10,
shadowOffset: { width: 0, height: 4 },
elevation: 3,
},
viewData: {
width: '100%',
marginBottom: 20,
backgroundColor: '#FFFFFF',
borderRadius: 8,
shadowColor: '#000',
shadowRadius: 15,
shadowOffset: { width: 0, height: 0 },
elevation: 2,
paddingHorizontal: 10,
paddingVertical: 12,
},
textInfo: {
fontSize: 16,
color: '#888',
}
});