Machine_웅_Note

1) 백그라운드 자체에서 데이터를 처리 하고싶은 경우 index.js import messaging from '@react-native-firebase/messaging'; // Register background handler messaging().setBackgroundMessageHandler(async remoteMessage => { console.log('setBackgroundMessageHandler', remoteMessage); }); 2) 백그라운드에서 온 알림을 클릭후 이벤트 및 데이터를 처리 하고 싶은 경우 componentDidMount() { // 백그라운드에서 푸시가 왔을 경우- 헤드업 알림 클릭시 - 처리 하기 messaging().getInitialNotification(..

// console.log("lines",lines.length) this.setState({ showMoreButton: lines.length > 3 }) } >{data.iv_info}

root 폴더에서 아래 명령어 입력 cd android && ./gradlew signingReport 아래 정보들을 얻을 수 있다 Variant , Config , Store , Alias , MD5 , SHA1 , SHA-256 , Valid. until

let today = new Date(); let year = today.getFullYear(); // 년도 let month = today.getMonth() + 1; // 월 let date = today.getDate(); // 날짜 let day = today.getDay(); // 요일

function SHA256(s){ var chrsz = 8; var hexcase = 0; function safe_add (x, y) { var lsw = (x & 0xFFFF) + (y & 0xFFFF); var msw = (x >> 16) + (y >> 16) + (lsw >> 16); return (msw >> n ) | (X >> n ); } function Ch(x, y, z) { return ((x & y) ^ ((~x) & z)); } function Maj(x, y, z) { return ((x & y) ^ (x & z) ^ (y & z)); } function Sigma0256(x) { return (S(x, 2) ^ S(x, 13) ^ S(x, 22)); } function Sigm..

constructor(){ super() if (Text.defaultProps == null) { Text.defaultProps = {} } Text.defaultProps.allowFontScaling =false LogBox.ignoreLogs([ 'VirtualizedLists should never be nested', // TODO: Remove when fixed "Possible Unhandled Promise Rejection", "source.uri should not be an empty string", "VirtualizedList: missing keys for items, make sure to specify a key or id property on each item or p..

출처 : https://stackoverflow.com/questions/44384773/react-native-100-items-flatlist-very-slow-performance

offset 변경 관련 { this.frameHeight = event.nativeEvent.layout.height; const maxOffset = this.contentHeight - this.frameHeight; if (maxOffset { this.contentHeight = contentHeight; const maxOffset = this.contentHeight - this.frameHeight; if (maxOffset < this.yOffset) { this.yOffset = maxOffset; } }}..

import React, { useState, useEffect } from 'react'; import { StyleSheet, Button, View, SafeAreaView, Text, Alert, TouchableOpacity } from 'react-native'; const functionCompo = (props) => { // 초기 데이터가 있는경우 처리 var init_data = 0; if(props.route.params != undefined){ init_data = props.route.params.data } const [count, setCount] = useState(init_data); function test(){ props.navigation.goBack() } useE..

참고 : https://github.com/facebook/react-native/issues/28551 React Native 0.62.* [TypeError: Network request failed] on file upload · Issue #28551 · facebook/react-native Please provide all the information requested. Issues that do not follow this format are likely to stall. Description After upgrading from 0.61.4 to 0.62.0 the app will not upload files anymore from... github.com