React Native -如何监听权限更改？

npm install @react-native-community/permissions

import { PermissionsAndroid, Platform } from 'react-native';
import { check, request, PERMISSIONS, RESULTS } from '@react-native-community/permissions';

const requestCameraPermission = async () => {
  if (Platform.OS === 'android') {
    const result = await PermissionsAndroid.request(PermissionsAndroid.PERMISSIONS.CAMERA);
    if (result === PermissionsAndroid.RESULTS.GRANTED) {
      console.log('Camera permission granted');
    } else {
      console.log('Camera permission denied');
    }
  } else {
    const result = await request(PERMISSIONS.IOS.CAMERA);
    if (result === RESULTS.GRANTED) {
      console.log('Camera permission granted');
    } else {
      console.log('Camera permission denied');
    }
  }
};

// 监听权限更改
const handlePermissionChange = (permission, result) => {
  if (permission === PERMISSIONS.ANDROID.CAMERA || permission === PERMISSIONS.IOS.CAMERA) {
    if (result === RESULTS.GRANTED) {
      console.log('Camera permission granted');
    } else {
      console.log('Camera permission denied');
    }
  }
};

// 在组件挂载时请求权限并添加监听器
useEffect(() => {
  requestCameraPermission();

  const permissionListener = check(PERMISSIONS.ANDROID.CAMERA).then((result) => {
    handlePermissionChange(PERMISSIONS.ANDROID.CAMERA, result);
  });

  return () => {
    // 在组件卸载时移除监听器
    permissionListener();
  };
}, []);