地理位置上處於待機狀態的iOS更新，只能用積極的MapView

Question

我試過現在制定出在iOS地理位置相當長的一段時間，並得出了一些結論怪異：

當應用程序打開時（不待機或其他）地理位置非常準確。 當您將手機置於待機狀態或將應用程序最小化時，它會跳轉至AGPS，將位置更改爲G-Tester等。

但是;如果我在應用程序中有一個mapview，並且每次觸發事件時都更新userlocation，它似乎可以在非待機狀態下工作。 這個mapview觸發是什麼，所以它會留在普通的GPS而不是AGPS上？

這裏的MapView的創建：

var mapview = Ti.Map.createView({ 
    bottom: -300, 
    height: 200, 
    mapType: Ti.Map.STANDARD_TYPE, 
    region: { 
     latitude: 0, 
     longitude: 0, 
     latitudeDelta: delta, 
     longitudeDelta: delta 
    }, 
    animate:true, 
    regionFit:true, 
    userLocation:true 
}); 

mainWindow.add(mapview); 

和定位處理：

//Set a timestamp on the current time. This is being checked later to see if its 5 minutes later(Because setInterval isn't trustworthy check will be done this way) 
var realTime = new Date(); 
realTime = realTime.getTime(); 

//Set the battery time to be on the currenttime plus 5 minutes 
batteryTimeToBe = realTime+batteryTimeIncrement; 

//Empty interval and text to make a clean (re)start 
clearInterval(interval); 

//Set a half second timer on the stop button appearing(So people can't double tap the buttons) 
stopTimeout = setTimeout(showStopButton, 1000); 

//Switch the textlabels and buttons from startview to stopview 
stopText.show(); 
startText.hide(); 
btnStart.hide(); 

//Locationhandler 
location.start({ 
    action: function (e) { 
     if (e.coords) { 


      mapview.setLocation({ 
       latitude: e.coords.latitude, 
       longitude: e.coords.longitude, 
       animate: false, 
       latitudeDelta: delta, 
       longitudeDelta: delta 
      }); 


      //If the newly acquired location is not the same as the last acquired it is allowed 
      if (e.coords.longitude != lastLon && e.coords.latitude != lastLat) { 
       //set the last acquired locations+other info to their variables so they can be checked(and used) 
       lastLat = e.coords.latitude; 
       lastLon = e.coords.longitude; 

       lastKnownAltitude = e.coords.altitude; 
       lastKnownHeading = e.coords.heading; 
       lastKnownSpeed = e.coords.speed; 

       if (lastLat != 0 && lastLon != 0) { 
        setGPSholder(lastLat, lastLon, lastKnownAltitude, lastKnownHeading, lastKnownSpeed); 
       } else { 
        GPSSaved.text = 'Geen coordinaten.'; 
       } 
      } 
     } 

     var timeNow = new Date(); 
     timeNow = timeNow.getTime(); 
     //If the now-time is higher or equal to the batteryTimeToBe(Which is reset after every call or when the start button is fired) send the batteryLevel 
     if (timeNow >= batteryTimeToBe) { 
      sendBatteryLevel(); 
      batteryTimeToBe = timeNow+batteryTimeIncrement; 
      timeNow = null; 
      //Ti.API.info(new Date()); 
     } 

    } 
}); 

/* 
A second interval which shows a counter to the user and makes sure a location is sent 
roughly every 5 seconds(setInterval isn't accurate though) 
A lot of counters are tracked for several reasons: 
    minuteInterval:  Counter which makes sure the last location is sent after a minute if no new one is found in the meantime 
    secondsLastSent: The visual counter showing the user how long its been for the last save(Is reset to 0 after a succesful save) 
    */ 
interval = setInterval(function() { 
    minuteInterval++; 
    secondsLastSent++; 

    counterBlock.text = "De laatste locatie is " + secondsLastSent + " seconden geleden verstuurd"; 

    //If the counter is higher than 5 send a new coordinate. If at the same time the minuteInterval is over a minute 
    //The last location is put in the array before calling the sendCoordinates 
    if (counter >= 5) { 
     if (minuteInterval > 60) { 
      if (lastLat != 0 && lastLon != 0) { 
       setGPSholder(lastLat, lastLon, lastKnownAltitude, lastKnownHeading, lastKnownSpeed); 
      } 
     } 
     counter = 1; 
     sendCoordinates(); 
    } else { 
     counter++; 
    } 
}, 1000); 

Answer 1

鈦：鈦

Titanium.Geolocation.accuracy = Titanium.Geolocation.ACCURACY_BEST; (or ACCURACY_HIGH) 

位置有一個屬性供應商，其中有一個屬性的準確性是好的或當然。檢查罰款。進一步檢查提供商的名稱

在鈦中有位置自動和手動模式。使用手動模式並嘗試是否可以將電池消耗設置爲高，並將準確度設置爲高。 （GPS總是需要高電量，沒有辦法繞此，沒有低電量GPS）