在iOS 6上，getCurrentPosition几乎总是在PhoneGap 1.3中失败

Question

I have an existing PhoneGap 1.3 app that does some geolocation that works just fine in iOS 4 and 5. In iOS 6, getCurrentPosition almost always fires the failure callback. After a failure, additional getCurrentPosition calls do not fire either the success or failure callbacks. I've reduced the app down to the following code, which exhibits the same behavior as my full app.

document.addEventListener("deviceready", function() {
  console.log('deviceready!!!');
  successCallback = function() {
    console.log('success!!!');
  };
  failureCallback = function() {
    console.log('failure!!!');
    navigator.geolocation.getCurrentPosition(function() { console.log('success 2'); }, function() { console.log('failure 2'); });
  };
  navigator.geolocation.getCurrentPosition(successCallback, failureCallback);
}, false);

When it fails, this is what I get in the log:

2012-09-24 16:26:46.576 MyAppName[7250:16703] [INFO] deviceready!!!
2012-09-24 16:26:56.582 MyAppName[7250:16703] [INFO] failure!!!

Nothing more.

Any ideas on where to go with this?

Answer 1

The answer: Set EnableLocation in PhoneGap.plist to NO. Apparently, having it set to YES causes PhoneGap apps running in iOS 6 to have memory problems. A fix has been implemented, but as of right now, I don't think it's in the official PhoneGap release. FWIW, I can't find anyone who actually knows what EnableLocation does.