44 lines
896 B
JavaScript
44 lines
896 B
JavaScript
import React, { Component } from "react"
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import { Image, View } from "react-native"
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import PropTypes from "prop-types"
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export class Geolocation extends Component {
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static propTypes = {
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onUpdate: PropTypes.func.isRequired,
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watch: PropTypes.bool,
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}
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static defaultProps = {
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watch: true,
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}
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constructor(props) {
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super(props)
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this.watchId = -1
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}
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componentDidMount() {
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navigator.geolocation.getCurrentPosition((position) => {
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this.props.onUpdate(position)
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if (this.props.watch) {
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this.watchId = navigator.geolocation.watchPosition((position) =>
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this.props.onUpdate(position)
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)
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}
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})
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}
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componentWillUnmount() {
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if (this.watchId !== -1) {
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navigator.geolocation.clearWatch(this.watchId)
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navigator.geolocation.stopObserving()
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this.watchId = -1
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}
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}
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render() {
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return null
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}
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}
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