| --- |
| license: > |
| Licensed to the Apache Software Foundation (ASF) under one |
| or more contributor license agreements. See the NOTICE file |
| distributed with this work for additional information |
| regarding copyright ownership. The ASF licenses this file |
| to you under the Apache License, Version 2.0 (the |
| "License"); you may not use this file except in compliance |
| with the License. You may obtain a copy of the License at |
| |
| http://www.apache.org/licenses/LICENSE-2.0 |
| |
| Unless required by applicable law or agreed to in writing, |
| software distributed under the License is distributed on an |
| "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| KIND, either express or implied. See the License for the |
| specific language governing permissions and limitations |
| under the License. |
| |
| title: geolocation.clearWatch |
| --- |
| |
| geolocation.clearWatch |
| ====================== |
| |
| Stop watching for changes to the device's location referenced by the `watchID` parameter. |
| |
| navigator.geolocation.clearWatch(watchID); |
| |
| Parameters |
| ---------- |
| |
| - __watchID:__ The id of the `watchPosition` interval to clear. (String) |
| |
| Description |
| ----------- |
| |
| Function `geolocation.clearWatch` stops watching changes to the device's location by clearing the `[geolocation.watchPosition](geolocation.watchPosition.html)` referenced by `watchID`. |
| |
| Supported Platforms |
| ------------------- |
| |
| - Android |
| - BlackBerry (OS 4.6) |
| - BlackBerry WebWorks (OS 5.0 and higher) |
| - iPhone |
| - Windows Phone 7 ( Mango ) |
| |
| Quick [Example](../storage/storage.opendatabase.html) |
| ------------- |
| |
| // Options: retrieve the location every 3 seconds |
| // |
| var watchID = navigator.geolocation.watchPosition(onSuccess, onError, { frequency: 3000 }); |
| |
| // ...later on... |
| |
| navigator.geolocation.clearWatch(watchID); |
| |
| |
| Full [Example](../storage/storage.opendatabase.html) |
| ------------ |
| |
| <!DOCTYPE html> |
| <html> |
| <head> |
| <title>Device Properties Example</title> |
| |
| <script type="text/javascript" charset="utf-8" src="cordova-1.5.0.js"></script> |
| <script type="text/javascript" charset="utf-8"> |
| |
| // Wait for PhoneGap to load |
| // |
| document.addEventListener("deviceready", onDeviceReady, false); |
| |
| var watchID = null; |
| |
| // PhoneGap is ready |
| // |
| function onDeviceReady() { |
| // Update every 3 seconds |
| var options = { frequency: 3000 }; |
| watchID = navigator.geolocation.watchPosition(onSuccess, onError, options); |
| } |
| |
| // onSuccess Geolocation |
| // |
| function onSuccess(position) { |
| var element = document.getElementById('geolocation'); |
| element.innerHTML = 'Latitude: ' + position.coords.latitude + '<br />' + |
| 'Longitude: ' + position.coords.longitude + '<br />' + |
| '<hr />' + element.innerHTML; |
| } |
| |
| // clear the watch that was started earlier |
| // |
| function clearWatch() { |
| if (watchID != null) { |
| navigator.geolocation.clearWatch(watchID); |
| watchID = null; |
| } |
| } |
| |
| // onError Callback receives a [PositionError](PositionError/positionError.html) object |
| // |
| function onError(error) { |
| alert('code: ' + error.code + '\n' + |
| 'message: ' + error.message + '\n'); |
| } |
| |
| </script> |
| </head> |
| <body> |
| <p id="geolocation">Watching geolocation...</p> |
| <button onclick="clearWatch();">Clear Watch</button> |
| </body> |
| </html> |
