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expo 的權限和位置 api 不起作用

[英]Permissions and Location api's from expo are not working

權限和位置 api 的功能不起作用。 例如,每當我嘗試實現屬於權限的 function 時,如下例所示:

    const { status } = await Permissions.askAsync(Permissions.LOCATION);

基本上,當我突出顯示時,askAsync function 不會彈出,好像我沒有導入它或者它在 API 中不存在,這令人困惑,因為我安裝了所有內容並正確導入了所有內容。

這是要檢查的整個代碼:

import React, { useEffect, useState } from "react";
import {
  Text,
  View,
  StyleSheet,
  ScrollView,
  TextInput,
  Dimensions,
} from "react-native";
import { LinearGradient } from "expo-linear-gradient";
import { Permissions, Location } from "expo";
import MapView from "react-native-maps";
import { LoadingScreen } from "./LoadingScreen";

export const MainScreen = (props) => {
  // State variables for location and error message
  const [location, setLocation] = useState({});
  //
  const getLocation = async () => {
    const { status } = await Permissions.askAsync(Permissions.LOCATION);
    if (status !== "granted") {
      console.log("PERMISSION OT GRANTED");
    }
  };
  setLocation(Location.getCurrentPositionAsync());
  console.log(location);
  useEffect(() => {
    getLocation();
  });

  // Check for loaded status of the component
  const [loaded, setLoaded] = useState(null);
  React.useEffect(() => {
    setLoaded(true);
  });

  if (loaded) {
    return (
      <LinearGradient colors={["#d8e5f5", "#eacfe8"]} style={styles.container}>
        <MapView
          style={{
            flex: 1,
            height: Dimensions.get("window").height / 2,
            width: Dimensions.get("window").width,
          }}
          loadingEnabled={true}
          region={{
            latitude: 37.78825,
            longitude: -122.4324,
            latitudeDelta: 0.015,
            longitudeDelta: 0.0121,
          }}
        />
      </LinearGradient>
    );
  }
  return <LoadingScreen />;
};

提前致謝。

權限獲取者和請求者被移動到他們的特定模塊而不是 expo 權限 API,因此您需要現在從博覽會位置導入 Location.requestForegroundPermissionsAsync() 而不是權限 ZDB974238714CA8DE634A7ACE1D 代碼和文檔示例可以在此鏈接expo-location documentation with example中找到

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