react-native-camera的使用

1.首先安装react-native-camera

npm i react-native-camera --save

或

yarn add react-native-camera

2.在android/app/src/main/AndroidManifest.xml中添加

 <uses-permission android:name="android.permission.CAMERA" />

3.在android/app/build.gradle下添加

missingDimensionStrategy 'react-native-camera', 'general'

这样就完成了react-native-camera的配置

import {RNCamera} from 'react-native-camera';

import React, {useEffect, useRef} from 'react';

import {

  StyleSheet,

  Animated,

  PermissionsAndroid,

  default as Easing,

  ImageBackground,

  DeviceEventEmitter,

  View,

  Text,

  Image,

  TouchableOpacity,

} from 'react-native';

let camera;

const ScanQRCode = () => {

  const moveAnim = useRef(new Animated.Value(-2)).current;

  useEffect(() => {

    requestCameraPermission();

    startAnimation();

    // eslint-disable-next-line react-hooks/exhaustive-deps