IssueTracker

The problem is that if the value of myLocationEnabled is changed from YES to NO after the map has loaded and then changed back to YES again, the location dot is not shown again until the location changes.  Note that the GMSMapView's myLocation property still contains a coordinate prior to this update, so it is still possible to get the user's current location at this point in time, but the blue location indicator does not show up.

To reproduce the problem:

1. Create a simple single view application with a GMSMapView in it and set the GMSMapView's myLocationEnabled property to YES in viewDidLoad.  
2. Add a boolean property to the view controller like @property (nonatomic)BOOL shouldEnableMyLocation;
3. Add a repeating NSTimer which will cycle the boolean property once every few seconds:

 [NSTimer scheduledTimerWithTimeInterval:3.0 target:self selector:@selector(cycleMyLocationEnabled) userInfo:nil repeats:YES];

- (void)cycleMyLocationEnabled {
    self.shouldEnableMyLocation = !self.shouldEnableMyLocation;
    self.myGMSMapView.myLocationEnabled = self.shouldEnableMyLocation
}

4. Run in the simulator and select one of the stock set of simulated locations (e.g. London, Moscow, Tokyo etc).  If myLocationEnabled is set to YES, the blue dot should appear.  Once it's set to NO, the blue dot will disappear.  Once it's set to YES again, the blue dot will NOT reappear, even when myLocationEnabled has been cycled back to YES.  To make the blue dot reappear, one must choose a different simulated location, as the change of location is what seems to trigger the dot's reappearance.  Note that this problem is probably easier to debug in a simulator than on a device, or at least on a device with no true GPS.  On a device, especially one with a true GPS, the location may change frequently making it potentially hard to observe the effect of the blue dot not reappearing, given that a location change seems to trigger it to reappear.



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