GMSMapView初始绘图失败

Question

I am creating GMSMapView instance as subview in custom UIView using following code

GMSCameraPosition *camera = [GMSCameraPosition cameraWithLatitude:position.latitude
                                                        longitude:position.latitude
                                                             zoom:CAMZOOM];

if(camera)
{
    self.googleMapView =  [GMSMapView mapWithFrame:self.frame camera:camera];
    self.googleMapView.myLocationEnabled = YES;
    self.googleMapView.delegate=self;

}

I am adding multiple UIbutton and GMSMarker to this view , which are visible without any issue but often I get map draws like below (occurs)

I have button which triggers animation to current location (refer following code), map is drawn without any issue

[self.googleMapView animateToLocation:self.googleMapView.myLocation.coordinate];

---

Fixed

After I removed view animation (alpha 0.0 to 1.0 with duration 1 sec) , this issue got fixed. Now my map instance loads with flicker but I can live with that.

Answer 1

Your coordinates are null so what you are seeing is blue ocean and the values are latitude = 0.0 and longitude =0.0. Try setting the coodinates manually by assigning some known value to see it it works. Eventually you need to learn how to use the delegates to read the cordinates when it becomes available.