为什么geolocation不能在Android Emulator上使用React Native?

import React, { Component } from "react";
import {
  Platform,
  StyleSheet,
  Text,
  View,
  Alert,
  TouchableOpacity
} from "react-native";

export default class App extends Component {
  state = {
    location: null
  };

  findCoordinates = () => {
    navigator.geolocation.getCurrentPosition(
      position => {
        const location = JSON.stringify(position);

        this.setState({ location });
      },
      error => alert(error.message),
      { enableHighAccuracy: true, timeout: 20000, maximumAge: 1000 }
    );

    alert("SKIPPED");
  };

  render() {
    return (
      <View style={styles.container}>
        <TouchableOpacity onPress={this.findCoordinates}>
          <Text style={styles.welcome}>Find My Coords?</Text>
          <Text>Location: {this.state.location}</Text>
        </TouchableOpacity>
      </View>
    );
  }
}


const styles = StyleSheet.create({
  ... some style ...
});

由于我使用的是Android仿真器,所以在 AndroidManifest.xml 文件位于 android\app\src\main application 标签:

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

getCurrentPosition 函数似乎只是被跳过了。状态未更新,未显示任何错误,并显示警报“跳过”。

这就是我在“跳过”警报解除后在屏幕上看到的情况: