Question

CameraRoll.getAlbums({
      assetType:"All"
    }).then( list => {
      console.log(list.length)
    }).catch((err) => {
      console.log(err)
    })

我从CameraRoll尝试过此操作，但它返回了一个空列表。

Answer 1

首先请确保您添加了正确的权限，然后再进行构建。还要检查您的设备是否有任何文件。

然后您可以遵循以下逻辑：

import React from 'react';
import {
  PermissionsAndroid,
  Platform,
  View,
  TouchableOpacity,
  Text,
} from 'react-native';
import {getAlbums} from '@react-native-community/cameraroll';

const hasAndroidPermission = async () => {
  const permission = PermissionsAndroid.PERMISSIONS.WRITE_EXTERNAL_STORAGE;

  const hasPermission = await PermissionsAndroid.check(permission);
  if (hasPermission) {
    return true;
  }

  const status = await PermissionsAndroid.request(permission);
  return status === 'granted';
};

const handleGetAlbums = async () => {
  if (Platform.OS === 'android' && !(await hasAndroidPermission())) {
    return;
  }

  try {
    const albums = await getAlbums({assetType: 'All'});

    console.log(albums); // returns an object like [{"count": 4, "title": "Downloads"}]

    return albums;
  } catch (error) {
    return error;
  }
};

const App = () => {
  return (
    <View style={{flex: 1, alignItems: 'center', justifyContent: 'center'}}>
      <TouchableOpacity onPress={handleGetAlbums}>
        <Text>Press Me</Text>
      </TouchableOpacity>
    </View>
  );
};

export default App;

有没有办法在react native中获得专辑文件夹列表？

1 个答案: