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1、Compass6旨南针)phonegap 中文 API(Commpass (指南针)获得该设备的方向指向。方法? compass.getCurrentHeading? compass.watchHeading? compass.clearWatch参数? compassSuccess? compassError? compassOptionscompass.getCurrentHeading获取当前罗盘航向。pass.getCurrentHeadin g(compassSuccess, compassError, compassOptions);说明它的措施，从0到指南针是一种传感器，检测到的

2、方向或标题，指出该设备。359.99度的标题。指南针返回标题使用compassSuccess 回调函数。支持的平台? Android? iPhone简单的例子function onSuccess(heading) alert( ;'Heading:'+ heading);charset ="utf-8”function onError() alert( ;Error!' );pass.getCurrentHeadin g(onSuccess, onError);完整的例子<!DOCTYPE HTML PUBLIC "-/W3C/DTDHTML

3、4.01/EN""/TR/html4/strict.dtd"> <html><head><title>Compass Example >script type ="text/javascript”src ="phonegap.js" ></script>script type ="text/javascriptcharset ="utf-8">/ Wait for PhoneGap to load/fu

4、nction onLoad() document.addEventListener("deviceready" , onDeviceReady, false ); / PhoneGap is ready/function onDeviceReady() pass.getCurren tHeading(onSuccess, onError);/ onSuccess: Get the current heading/function onSuccess(heading) alert( 'Heading: ' + heading); / onError: Fail

5、ed to get the heading/function onError() alert( 'onError!' );</script></head><body onload ="onLoad() "><h1> Example </h1><p> getCurrentHeading </p></body></html>compass.watchHeading在定期间隔，获得指南针度标题。var watchlD =pass.watchHeading(c

6、om passSuccess, compassError, compassOptions);说明指南针是一种传感器，检测到的方向或标题，指出该设备。它的措施，从0到359.99度的标题。该compass.watchHeading获取设备的当前间隔在例行标题。每次标题检索，headingSuccess回调函数被执行。通过指定的时间间隔以毫秒为单位的频率 参数在 compassOptions 对象。返回的手表ID引用引用指南针手表的时间问隔。这款手表ID可用于compass.clearWatch 停止看指南针。支持的平台? Android? iPhone简单的例子function onSucces

7、s(heading) var element =document.getElementById('heading' );element.innerHTML ='Heading:'+ heading;alert(Error!' );；var options= frequency: 3000 ;/Update every 3 secondsvar watchlD =pass.watchHeading(onS uccess, onError, options);完整的例子<!DOCTYPE HTML PUBLIC "-/W3C/DTDHTML

8、4.01/EN""/TR/html4/strict.dtd"><html><head><title>Compass Example </title>script type ="text/javascriptcharset ="utf-8”src ="phonegap.js" ></script>script type ="text/javascriptcharset ="utf-8">/

9、 The watch id references the current 'watchHeading'var watchlD = null/ Wait for PhoneGap to load/function onLoad() document.addEventListener("deviceready" , onDeviceReady, false ); / PhoneGap is ready/function onDeviceReady() startWatch();/ Start watching the compass/function start

10、Watch() / Update compass every 3 secondsvar options = frequency: 3000 ;watchID =pass.watchHeading(onS uccess, onError, options);/ Stop watching the compass/function stopWatch() if (watchID) pass.clearWatch(watchID);watchID =null ;/ onSuccess: Get the current heading/function onSuccess(heading) var e

11、lement =document.getElementById( 'heading' );element.innerHTML= 'Heading:'+ heading;/ onError: Failed to get the heading/function onError() alert( 'onError!' );</script></head><body onload ="onLoad() "><div id ="heading" >Waiting fo

12、rheading. </div>buttononclick =" startWatch(); " >StartWatching </button>buttononclick =" stopWatch(); " >StopWatching </button></body></html>compass.clearWatch不看指南针手表引用ID参数。pass.clearWatch(watchID)；? watchlD : 返回的 ID compass.watchHeading 支持的平台

13、?机器人? iPhone简单的例子var watchlD =pass.watchHeading(onSuccess, onError, options);/ . later on .pass.clearWatch(watchID)；完整的例子<!DOCTYPE HTML PUBLIC "-/W3C/DTDHTML 4.01/EN""/TR/html4/strict.dtd"><html><head><title> Compass Example >script type

14、 ="text/javascriptcharset ="utf-8"src ="phonegap.js" ></script>script type ="text/javascriptcharset ="utf-8">/ The watch id references the current 'watchHeading'var watchlD = null / Wait for PhoneGap to load/function onLoad() document.addEv

15、entListener("deviceready" , onDeviceReady, false ); / PhoneGap is ready/function onDeviceReady() startWatch();/ Start watching the compass/function startWatch() / Update compass every 3 secondsvar options = frequency:3000 ;watchlD =pass.watchHeading(onS uccess, onError, options);/ Stop wat

16、ching the compass /function stopWatch() if (watchID) pass.clear Watch(watchID);watchID =null/ onSuccess: Get the current heading /function onSuccess(heading) var element =document.getElementById( 'heading' );element.innerHTML= 'Heading:+ heading;/ onError: Failed to get the heading/funct

17、ion onError() alert( 'onError!' );</script></head><body onload ="onLoad() "><div id ="heading" >Waiting for heading. </div>buttononclick =" startWatch(); " >StartWatching </button>buttononclick =" stopWatch(); " >StopWatching </button></body></html>compassS

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