Question

我是React Native的初学者。我正在开发一个应用程序，其中我使用react-native-image-picker拍照并上传到AWS服务器。我可以捕获并且可以将其上传到AWS s3当前，这些图像存储在图库中。但是我只想将它们存储在我的应用程序中（不应存储在图库中），然后上传到AWS s3。我怎样才能做到这一点。然后，当只有网络连接时，我可以将拍摄的照片上传到AWS s3。因此，我想存储在应用程序内部，一旦恢复了网络连接，这些应该上传到AWS s3。我该如何实现。（我没有在此处上传样式代码）

我的代码是

import React, {Component} from 'react';
    import {Platform, StyleSheet,Alert, Text,TouchableOpacity,     
    View,Picker,Animated,Easing,Image} from 'react-native';
    import ImagePicker from 'react-native-image-picker';
    import { RNS3 } from 'react-native-aws3';

     export default class SecondScreen extends Component<Props> {
            constructor(props) {
            super(props);
            this.state = {
              file :'',
              //declare array to store all taken images 
              saveImages : []
            }

          }
      takePic(){
        ImagePicker.launchCamera({},(responce)=>{
          const file ={
            uri : responce.uri,
            name :responce.fileName,,
            method: 'POST',
            path : responce.path,
            type :  responce.type,
            notification: {
                enabled: true
              }
          }
            this.state.saveImages.push(file);

        })
      }

   _upload=(saveImages)=>{
        const config ={
            keyPrefix :'uploads/',
            bucket : 's3merahkee',
            region :'us-east-2',
            accessKey:'***',
            secretKey :'***',
            successActionStatus :201
          }

          this.state.saveImages.map((image) => {
               RNS3.put(image,config)
              .then((responce) => {
                console.log(saveImages);
              });
          });
      }
        render() {

          return (
              <View style={styles.container}>
                    <View style={styles.Camera}>
                      <TouchableOpacity onPress={this.takePic.bind(this)}>
                        <Text>Take Picture</Text>
                      </TouchableOpacity>
                    </View>
                    <View style={styles.Send}>
                      <TouchableOpacity onPress={() => this._upload()}>
                        <Text>Send</Text>
                      </TouchableOpacity>
                    </View>
            </View>
          );
      }
    }

Answer 1

您可以提供import requests from bs4 import BeautifulSoup import re import xlsxwriter request = requests.get("http://www.drogariasnossarede.com.br/nossas-lojas") soup = BeautifulSoup(request.content, 'html.parser') data = soup.find_all("div", class_='item') import csv with open('names.csv', 'w', newline='', encoding="utf-8") as ofile: writer = csv.writer(ofile) for container in data: Pharmacyname = container.find_all("h3") Pharmacyadd = container.find_all("p") for pharmacy in Pharmacyname: for add in Pharmacyadd: writer.writerow((pharmacy.text, add.text))

storageOptions.cameraRoll: false

看看API reference以获得更多选项。

对于临时存储，您可以使用react-native的AsyncStorage存储本地应用程序数据。您必须首先将图像转换为base64字符串，因为AsyncStorage只能存储字符串。

React Native-如何将捕获的图像存储在应用程序内部，而不是存储在图库中，并将其从应用程序本身上传到AWS s3

1 个答案: