React Native expo-permission deprecated 现在使用什么？

Question

我正在使用 expo-permission 库中的权限来获取用户的位置坐标：

import * as Location from "expo-location";
import * as Permissions from 'expo-permissions';

const granted = await Permissions.askAsync(Permissions.LOCATION);

上面的方法有效，但不断发出警告，指出 expo-permissions 已被弃用。

如果我使用：

import {Location, Permissions } from 'expo';

它说无法读取未定义的属性 'askAsync'。

有人知道我应该用什么吗？我使用 sdk42

谢谢！

Answer 1

正如这个 blog by Brent Vatne 所说，

expo-permissions has been deprecated in favor of module-specific permissions methods You should migrate from using Permissions.askAsync and Permissions.getAsync to the permissions methods exported by modules that require the permissions.

For example: you should replace calls to Permissions.askAsync(Permissions.CAMERA) with Camera.requestPermissionsAsync()

There shouldn’t be two ways to do an identical thing in a single SDK, and so we picked our preferred approach and are consolidating around it.

所以现在，您将不得不使用来自各个包的Permissions

对于位置，

首先，安装expo-location

expo install expo-location

那你就可以这样用了

import * as Location from 'expo-location';

let { status } = await Location.requestForegroundPermissionsAsync();
if (status !== 'granted') {
  console.log('Permission to access location was denied');
  return;
}

Answer 2

现在有了 expo，每个库都有自己的权限请求方法。

位置示例：

let { status } = await Location.requestForegroundPermissionsAsync();

Documentation

Answer 3

如果有人来到这里并希望获得 ImagePicker 的权限，那么根据 docs 你应该这样做：

import * as ImagePicker from "expo-image-picker";


  const getPermissionAsync = async () => {
    const { status } = await ImagePicker.requestMediaLibraryPermissionsAsync();
    if (status !== "granted") {
      alert("...");
    }
  };

Answer 4

import { Camera } from "expo-camera";

this.state = {
  hasCameraPermission: null,
  type: Camera.Constants.Type.back,
};
componentDidMount = async () => {
  const { status } = await Camera.requestCameraPermissionsAsync();
  this.setState({ hasCameraPermission: status === "granted" });
};

Answer 5

作品：从 'expo-camera' 导入 { 相机}； import * as ImagePicker from "expo-image-picker";

const resultPermision = await Camera.requestCameraPermissionsAsync(); const resultPermisionCamera = resultPermision.status;

    if (resultPermisionCamera === "denied") {
        toastRef.current.show("Gallery permissions are needed");
    } else {
        const result = await ImagePicker.launchImageLibraryAsync({
            allowsEditing: true,
            aspect: [4, 3]
        })

.......

现在，expo-camera 工作得很好，但我相信 app.json 方面还有待处理。

您还需要添加这些行吗？： “权限”：[ “相机”， "WRITE_EXTERNAL_STORAGE", “CAMERA_ROLL”

这里给大家提问:)

React Native expo-permission deprecated 现在使用什么？

React Native expo-permission deprecated what to use now?

permissions

location

react-native

expo