runOnFirstFix not actually running on first location fix

When using a mapView, runOnFirstFix throws a null pointer exception because MyLocOverlay.getMyLocation() is null. However, this should not happen becuase runOnFirstFix should not run when the location is null. What's going on here?

myLocOverlay.r开发者_运维技巧unOnFirstFix(new Runnable() { public void run() {
    map.getController().animateTo(myLocOverlay.getMyLocation());                
}

I'm using the emulator to run this code so maybe it's an emulator problem?

I haven't looked into this API, but why don't you wrap that call in an if block that checks if the location is null?

if (myLocOverlay.getMyLocation() != null) {
  myLocOverlay.runOnFirstFix(new Runnable() { public void run() {
    map.getController().animateTo(myLocOverlay.getMyLocation());                
  }
}

And more importantly, if you are using the emulator, you need to make sure that you are feeding the emulator gps fixes from the DDMS perspective, this tutorial explains how:

You Are Here: Using GPS and Google Maps in Android