phonegap地理位置总是在超时时失败 [英] phonegap geolocation always fail on timeout

问题描述

我在我的应用中使用sencha-touch 2.0和phonegap 2.0.0来检索用户的位置. 在我的locahost上运行时，一切正常.但是，将.apk加载到我的android 15 api的设备上(使用eclipse和adt插件)时，每次对getCurrentLocation或watchPosition的调用都不会返回...

I'm using sencha-touch 2.0 and phonegap 2.0.0 in my app to retrieve user's location. When runing on my locahost, everything works just fine. However, when loading the .apk to my android 15 api's device (using eclipse and the adt plugin), every call to getCurrentLocation or watchPosition never returns...

这是我的代码:

geoOn: function(){
    var geoReady = navigator.geolocation || undefined;

    var onSuccess = function(position){
            Top5.app.alert('Geolocation success '+String(position.coords.latitude) + ' ' + String(position.coords.longitude),'Geolocation');
            var scope = Ext.getCmp('nestedList');
            scope.updateDistance(position.coords);
    };

    var onFailure = function(error){Top5.app.alert('Geolocation failed: '+String(error.code) + ' '+String(error.message),'Geolocation');};
    if (geoReady) {
        this.watchId = navigator.geolocation.watchPosition(onSuccess ,onFailure,{timeout:6000,maximumAge: 3000,enableHighAccuracy: true});    
    }
    else{
        Ext.device.Geolocation.watchPosition({
                 frequency: 3000, // Update every 3 seconds
                 callback: function(position) {
                        this.updateDistance(position.coords);
                 },
                 failure: function() {
                   console.log('Geolocation Failure!');
                 },
                 scope:this
        });
    }
 },
 geoGet: function(){
     var geoReady = navigator.geolocation || undefined;
     if (geoReady) {

         var onSuccess = function(position){
             Top5.app.alert('Geolocation successful!!!');
             var scope = Ext.getCmp('nestedList');
             scope.updateDistance(position.coords);          
         };
         var onFailure = function(error){Top5.app.alert('Geolocation failed: '+String(error.code) + ' '+String(error.message),'Geolocation');};
         navigator.geolocation.getCurrentPosition(onSuccess,onFailure);
     }
     else{}
 },
 geoOff:function(){

     var geoReady = navigator.geolocation || undefined;
     if (geoReady) {
         navigator.geolocation.clearWatch(this.watchId);
         this.watchId = null;
     }
     else{
         Ext.device.Geolocation.clearWatch();
     }

 },
 updateDistance:function(coords){
     Top5.app.alert('updateDist','');
     var scope = Ext.getCmp('nestedList');
     var lat = coords.latitude,lon = coords.longitude;
     var store = scope.getStore();
     var i,record;
     for(i = 0; i < store.data.all.length; i++)
     {
         record = store.data.all[i];
         if(record.data.locationX){
            record.set('distance',Top5.app.getDistance(record.data.locationX,record.data.locationY,lat,lon).toFixed(3));
         }   
     }
}

更新:所以我走出了我的建筑物，它开始运转了……我需要更经常地出门.
但是，当我禁用GPS时，我以为geoLocation将使用wifi连接找到我的位置-但失败了(我将enableHighAccuracy设置为false).为什么会这样?

UPDATE: So I walked out of my building and it worked... I need to go outside more often.
However, when I'm disabling the gps, I thought geoLocation will find my location using wifi connection - but it failes (I'm setting enableHighAccuracy: false). Why is that?

更新:让我改一下我的问题: navigator.geolocation.watchPosition是否假定可以同时使用GPS信号和wifi/g3信号?如何仅使用互联网连接检测用户位置?目前，我的代码仅适用于GPS，并且当该选项被禁用或信号被阻止时，地理位置无法正常工作.

UPDATE: Let me rephrase my question: Does navigator.geolocation.watchPosition suppose to work both with GPS signal and wifi/g3 signals? How can I detect user location using internet connection only? currently, my code is working only with GPS, and when that option disabled or signal is blocked, geolocation isn't working.

推荐答案

我已经设法解决了....但是，我不知道实际解决了什么.我要做的就是更改模型的结构之一.谁能看到与地理位置的联系?

I've managed to work it out.... However , I have no idea what actually solved it. All I've done is to change one of my model's structure. Can anyone see the connection to geolocation?

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