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103 lines
34 KiB
HTML
<!DOCTYPE html><html><head><title>Geolocation</title><meta charset="utf-8"><meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"><meta name="viewport" content="width=device-width"><meta property="fb:app_id" content="1677033832619985"><meta property="fb:admins" content="121800083"><meta property="og:site_name" content="React Native"><meta property="og:title" content="Geolocation"><meta property="og:url" content="https://facebook.github.io/react-native/index.html"><meta property="og:image" content="https://facebook.github.io/react-native/img/opengraph.png"><meta property="og:description" content="A framework for building native apps using React"><meta name="twitter:site" content="@reactnative"><meta name="twitter:card" content="summary_large_image"><meta property="og:type" content="website"><base href="/react-native/"><link rel="stylesheet" href="https://cdn.jsdelivr.net/docsearch.js/1/docsearch.min.css"><link rel="shortcut icon" href="img/favicon.png?2"><link rel="stylesheet" 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class="nav-docs-section"><h3>APIs</h3><ul><li><a style="margin-left:10px;" class="" href="docs/accessibilityinfo.html">AccessibilityInfo</a></li><li><a style="margin-left:10px;" class="" href="docs/actionsheetios.html">ActionSheetIOS</a></li><li><a style="margin-left:10px;" class="" href="docs/adsupportios.html">AdSupportIOS</a></li><li><a style="margin-left:10px;" class="" href="docs/alert.html">Alert</a></li><li><a style="margin-left:10px;" class="" href="docs/alertios.html">AlertIOS</a></li><li><a style="margin-left:10px;" class="" href="docs/animated.html">Animated</a></li><li><a style="margin-left:10px;" class="" href="docs/appregistry.html">AppRegistry</a></li><li><a style="margin-left:10px;" class="" href="docs/appstate.html">AppState</a></li><li><a style="margin-left:10px;" class="" href="docs/asyncstorage.html">AsyncStorage</a></li><li><a style="margin-left:10px;" class="" href="docs/backandroid.html">BackAndroid</a></li><li><a style="margin-left:10px;" class="" 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style="margin-left:10px;" class="" href="docs/keyboard.html">Keyboard</a></li><li><a style="margin-left:10px;" class="" href="docs/layoutanimation.html">LayoutAnimation</a></li><li><a style="margin-left:10px;" class="" href="docs/linking.html">Linking</a></li><li><a style="margin-left:10px;" class="" href="docs/nativemethodsmixin.html">NativeMethodsMixin</a></li><li><a style="margin-left:10px;" class="" href="docs/netinfo.html">NetInfo</a></li><li><a style="margin-left:10px;" class="" href="docs/panresponder.html">PanResponder</a></li><li><a style="margin-left:10px;" class="" href="docs/permissionsandroid.html">PermissionsAndroid</a></li><li><a style="margin-left:10px;" class="" href="docs/pixelratio.html">PixelRatio</a></li><li><a style="margin-left:10px;" class="" href="docs/pushnotificationios.html">PushNotificationIOS</a></li><li><a style="margin-left:10px;" class="" href="docs/settings.html">Settings</a></li><li><a style="margin-left:10px;" class="" href="docs/share.html">Share</a></li><li><a style="margin-left:10px;" class="" href="docs/statusbarios.html">StatusBarIOS</a></li><li><a style="margin-left:10px;" class="" href="docs/stylesheet.html">StyleSheet</a></li><li><a style="margin-left:10px;" class="" href="docs/systrace.html">Systrace</a></li><li><a style="margin-left:10px;" class="" href="docs/timepickerandroid.html">TimePickerAndroid</a></li><li><a style="margin-left:10px;" class="" href="docs/toastandroid.html">ToastAndroid</a></li><li><a style="margin-left:10px;" class="" href="docs/vibration.html">Vibration</a></li><li><a style="margin-left:10px;" class="" href="docs/vibrationios.html">VibrationIOS</a></li><li><a style="margin-left:10px;" class="" href="docs/layout-props.html">Layout Props</a></li><li><a style="margin-left:10px;" class="" href="docs/shadow-props.html">Shadow Props</a></li></ul></div></div></div><div class="inner-content"><a id="content"></a><h1><a class="anchor" name="geolocation"></a>Geolocation <a class="hash-link" href="docs/geolocation.html#geolocation">#</a></h1><div><div><p>The Geolocation API extends the web spec:
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<a href="https://developer.mozilla.org/en-US/docs/Web/API/Geolocation">https://developer.mozilla.org/en-US/docs/Web/API/Geolocation</a></p><p>As a browser polyfill, this API is available through the <code>navigator.geolocation</code>
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global - you do not need to <code>import</code> it.</p><h3><a class="anchor" name="ios"></a>iOS <a class="hash-link" href="docs/geolocation.html#ios">#</a></h3><p>You need to include the <code>NSLocationWhenInUseUsageDescription</code> key
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in Info.plist to enable geolocation when using the app. Geolocation is
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enabled by default when you create a project with <code>react-native init</code>.</p><p>In order to enable geolocation in the background, you need to include the
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'NSLocationAlwaysUsageDescription' key in Info.plist and add location as
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a background mode in the 'Capabilities' tab in Xcode.</p><h3><a class="anchor" name="android"></a>Android <a class="hash-link" href="docs/geolocation.html#android">#</a></h3><p>To request access to location, you need to add the following line to your
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app's <code>AndroidManifest.xml</code>:</p><p><code><uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" /></code></p><p>Android API >= 18 Positions will also contain a <code>mocked</code> boolean to indicate if position
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was created from a mock provider.</p></div><span><h3><a class="anchor" name="methods"></a>Methods <a class="hash-link" href="docs/geolocation.html#methods">#</a></h3><div class="props"><div class="prop"><h4 class="methodTitle"><a class="anchor" name="getcurrentposition"></a><span class="methodType">static </span>getCurrentPosition<span class="methodType">(geo_success, geo_error?, geo_options?)</span> <a class="hash-link" href="docs/geolocation.html#getcurrentposition">#</a></h4><div><p>Invokes the success callback once with the latest location info. Supported
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options: timeout (ms), maximumAge (ms), enableHighAccuracy (bool)
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On Android, if the location is cached this can return almost immediately,
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or it will request an update which might take a while.</p></div></div><div class="prop"><h4 class="methodTitle"><a class="anchor" name="watchposition"></a><span class="methodType">static </span>watchPosition<span class="methodType">(success, error?, options?)</span> <a class="hash-link" href="docs/geolocation.html#watchposition">#</a></h4><div><p>Invokes the success callback whenever the location changes. Supported
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options: timeout (ms), maximumAge (ms), enableHighAccuracy (bool), distanceFilter(m)</p></div></div><div class="prop"><h4 class="methodTitle"><a class="anchor" name="clearwatch"></a><span class="methodType">static </span>clearWatch<span class="methodType">(watchID)</span> <a class="hash-link" href="docs/geolocation.html#clearwatch">#</a></h4></div><div class="prop"><h4 class="methodTitle"><a class="anchor" name="stopobserving"></a><span class="methodType">static </span>stopObserving<span class="methodType">()</span> <a class="hash-link" href="docs/geolocation.html#stopobserving">#</a></h4></div></div></span></div><p class="edit-page-block">You can <a target="_blank" href="https://github.com/facebook/react-native/blob/master/Libraries/Geolocation/Geolocation.js">edit the content above on GitHub</a> and send us a pull request!</p><div><div><table width="100%"><tbody><tr><td><h3><a class="anchor" name="examples"></a>Examples <a class="hash-link" href="docs/geolocation.html#examples">#</a></h3></td><td style="text-align:right;"><a target="_blank" href="https://github.com/facebook/react-native/blob/master/Examples/UIExplorer/js/GeolocationExample.js">Edit on GitHub</a></td></tr></tbody></table><div class="example-container"><div class="prism language-javascript"><span class="token comment" spellcheck="true">/* eslint no-console: 0 */</span>
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<span class="token string">'use strict'</span><span class="token punctuation">;</span>
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<span class="token keyword">var</span> React <span class="token operator">=</span> <span class="token function">require<span class="token punctuation">(</span></span><span class="token string">'react'</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
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<span class="token keyword">var</span> ReactNative <span class="token operator">=</span> <span class="token function">require<span class="token punctuation">(</span></span><span class="token string">'react-native'</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
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<span class="token keyword">var</span> <span class="token punctuation">{</span>
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StyleSheet<span class="token punctuation">,</span>
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Text<span class="token punctuation">,</span>
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View<span class="token punctuation">,</span>
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<span class="token punctuation">}</span> <span class="token operator">=</span> ReactNative<span class="token punctuation">;</span>
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exports<span class="token punctuation">.</span>framework <span class="token operator">=</span> <span class="token string">'React'</span><span class="token punctuation">;</span>
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exports<span class="token punctuation">.</span>title <span class="token operator">=</span> <span class="token string">'Geolocation'</span><span class="token punctuation">;</span>
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exports<span class="token punctuation">.</span>description <span class="token operator">=</span> <span class="token string">'Examples of using the Geolocation API.'</span><span class="token punctuation">;</span>
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exports<span class="token punctuation">.</span>examples <span class="token operator">=</span> <span class="token punctuation">[</span>
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<span class="token punctuation">{</span>
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title<span class="token punctuation">:</span> <span class="token string">'navigator.geolocation'</span><span class="token punctuation">,</span>
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render<span class="token punctuation">:</span> <span class="token keyword">function</span><span class="token punctuation">(</span><span class="token punctuation">)</span><span class="token punctuation">:</span> React<span class="token punctuation">.</span>Element<any<span class="token operator">></span> <span class="token punctuation">{</span>
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<span class="token keyword">return</span> <GeolocationExample <span class="token operator">/</span><span class="token operator">></span><span class="token punctuation">;</span>
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<span class="token punctuation">}</span><span class="token punctuation">,</span>
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<span class="token punctuation">}</span>
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<span class="token punctuation">]</span><span class="token punctuation">;</span>
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class <span class="token class-name">GeolocationExample</span> extends <span class="token class-name">React<span class="token punctuation">.</span>Component</span> <span class="token punctuation">{</span>
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state <span class="token operator">=</span> <span class="token punctuation">{</span>
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initialPosition<span class="token punctuation">:</span> <span class="token string">'unknown'</span><span class="token punctuation">,</span>
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lastPosition<span class="token punctuation">:</span> <span class="token string">'unknown'</span><span class="token punctuation">,</span>
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<span class="token punctuation">}</span><span class="token punctuation">;</span>
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watchID<span class="token punctuation">:</span> <span class="token operator">?</span>number <span class="token operator">=</span> <span class="token keyword">null</span><span class="token punctuation">;</span>
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<span class="token function">componentDidMount<span class="token punctuation">(</span></span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
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navigator<span class="token punctuation">.</span>geolocation<span class="token punctuation">.</span><span class="token function">getCurrentPosition<span class="token punctuation">(</span></span>
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<span class="token punctuation">(</span>position<span class="token punctuation">)</span> <span class="token operator">=</span><span class="token operator">></span> <span class="token punctuation">{</span>
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<span class="token keyword">var</span> initialPosition <span class="token operator">=</span> JSON<span class="token punctuation">.</span><span class="token function">stringify<span class="token punctuation">(</span></span>position<span class="token punctuation">)</span><span class="token punctuation">;</span>
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<span class="token keyword">this</span><span class="token punctuation">.</span><span class="token function">setState<span class="token punctuation">(</span></span><span class="token punctuation">{</span>initialPosition<span class="token punctuation">}</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
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<span class="token punctuation">}</span><span class="token punctuation">,</span>
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<span class="token punctuation">(</span>error<span class="token punctuation">)</span> <span class="token operator">=</span><span class="token operator">></span> <span class="token function">alert<span class="token punctuation">(</span></span>JSON<span class="token punctuation">.</span><span class="token function">stringify<span class="token punctuation">(</span></span>error<span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">,</span>
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<span class="token punctuation">{</span>enableHighAccuracy<span class="token punctuation">:</span> <span class="token boolean">true</span><span class="token punctuation">,</span> timeout<span class="token punctuation">:</span> <span class="token number">20000</span><span class="token punctuation">,</span> maximumAge<span class="token punctuation">:</span> <span class="token number">1000</span><span class="token punctuation">}</span>
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<span class="token punctuation">)</span><span class="token punctuation">;</span>
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<span class="token keyword">this</span><span class="token punctuation">.</span>watchID <span class="token operator">=</span> navigator<span class="token punctuation">.</span>geolocation<span class="token punctuation">.</span><span class="token function">watchPosition<span class="token punctuation">(</span></span><span class="token punctuation">(</span>position<span class="token punctuation">)</span> <span class="token operator">=</span><span class="token operator">></span> <span class="token punctuation">{</span>
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<span class="token keyword">var</span> lastPosition <span class="token operator">=</span> JSON<span class="token punctuation">.</span><span class="token function">stringify<span class="token punctuation">(</span></span>position<span class="token punctuation">)</span><span class="token punctuation">;</span>
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<span class="token keyword">this</span><span class="token punctuation">.</span><span class="token function">setState<span class="token punctuation">(</span></span><span class="token punctuation">{</span>lastPosition<span class="token punctuation">}</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
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<span class="token punctuation">}</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
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<span class="token punctuation">}</span>
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<span class="token function">componentWillUnmount<span class="token punctuation">(</span></span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
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navigator<span class="token punctuation">.</span>geolocation<span class="token punctuation">.</span><span class="token function">clearWatch<span class="token punctuation">(</span></span><span class="token keyword">this</span><span class="token punctuation">.</span>watchID<span class="token punctuation">)</span><span class="token punctuation">;</span>
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<span class="token punctuation">}</span>
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<span class="token function">render<span class="token punctuation">(</span></span><span class="token punctuation">)</span> <span class="token punctuation">{</span>
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<span class="token keyword">return</span> <span class="token punctuation">(</span>
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<View<span class="token operator">></span>
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<Text<span class="token operator">></span>
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<Text style<span class="token operator">=</span><span class="token punctuation">{</span>styles<span class="token punctuation">.</span>title<span class="token punctuation">}</span><span class="token operator">></span>Initial position<span class="token punctuation">:</span> <<span class="token operator">/</span>Text<span class="token operator">></span>
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<span class="token punctuation">{</span><span class="token keyword">this</span><span class="token punctuation">.</span>state<span class="token punctuation">.</span>initialPosition<span class="token punctuation">}</span>
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<<span class="token operator">/</span>Text<span class="token operator">></span>
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<Text<span class="token operator">></span>
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<Text style<span class="token operator">=</span><span class="token punctuation">{</span>styles<span class="token punctuation">.</span>title<span class="token punctuation">}</span><span class="token operator">></span>Current position<span class="token punctuation">:</span> <<span class="token operator">/</span>Text<span class="token operator">></span>
|
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<span class="token punctuation">{</span><span class="token keyword">this</span><span class="token punctuation">.</span>state<span class="token punctuation">.</span>lastPosition<span class="token punctuation">}</span>
|
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<<span class="token operator">/</span>Text<span class="token operator">></span>
|
||
<<span class="token operator">/</span>View<span class="token operator">></span>
|
||
<span class="token punctuation">)</span><span class="token punctuation">;</span>
|
||
<span class="token punctuation">}</span>
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||
<span class="token punctuation">}</span>
|
||
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<span class="token keyword">var</span> styles <span class="token operator">=</span> StyleSheet<span class="token punctuation">.</span><span class="token function">create<span class="token punctuation">(</span></span><span class="token punctuation">{</span>
|
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title<span class="token punctuation">:</span> <span class="token punctuation">{</span>
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fontWeight<span class="token punctuation">:</span> <span class="token string">'500'</span><span class="token punctuation">,</span>
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<span class="token punctuation">}</span><span class="token punctuation">,</span>
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