Phonegap iPhone

Comments and changes to this ticket

• 

  Shazron Abdullah September 11th, 2009 @ 04:53 PM

  Unfortunately based on my tests, we cannot bind to "navigator.geolocation" to override UIWebView's default implementation in 3.0.
  
  
  If we want to enable PhoneGap geoloc, we will have to be bind to another property. The impact: addition of another API call, and Objective-C changes.
  
  
  
  Will need to discuss with the team about the impact.

• 

  Jesse December 16th, 2009 @ 01:23 AM

  • → Assigned user changed from “” to “Jesse”

  Okay, until we decide how to refactor this with the least impact, I will post the workaround.

  The js Geolocation object defined in phonegap.js functions correctly and was in use until the 3.0 update that added the same functionality to the navigator object, and overwrote the phonegap functionality. You will not need to modify phonegap.js.

  In your html/js code, create your own Geolocation object: ( define it in a global scope, so it can be accessed from Obj-C code.

  
  // in js
  var myLocation = new Geolocation();
  myLocation.getCurrentPosition(onLocSuccess);
  myLocation.start();
  

  
  // in Obj-C -  Location.m ( in the commands folder )
  // Replace the 2 calls to callback to javascript to use your js object :
  
  NSString * jsCallBack = [NSString stringWithFormat:@"myLocation.setLocation({ timestamp: %d, %@ });", epoch, coords];
  
  // and
  
  jsCallBack = [NSString stringWithFormat:@"myLocation.setError(\"%s\");",
                                   [error localizedDescription]
                                  ];
  

  Also: Note the case of Geolocation, I kept thinking it should be GeoLocation and hence stared blankly at my code for awhile when it didn't work.

• 

  Shazron Abdullah December 24th, 2009 @ 03:30 PM

  Ok, the PhoneGap team discussed it and found out there is workaround for this. Although navigator.geolocation CANNOT be overridden, the properties of the navigator.geolocation object CAN be overridden.

  So the fix is to override all the navigator.geolocation API functions with our old geolocation functions.

  eg
  

      var myGeo = new Geolocation();
      navigator.geolocation.getCurrentPosition = function()
      {
           myGeo.getCurrentPosition.apply(myGeo,arguments);
      }
      navigator.geolocation.setLocation = function()
      {
          myGeo.setLocation.apply(myGeo,arguments);
      }
  

• 

  Jesse January 28th, 2010 @ 01:19 AM

  • → State changed from “new” to “resolved”