animateCamera works and moveCamera doesn't for GoogleMap - Android

Question

I need to move Camera to cover all Markers on it. So, I build LatLngBounds and then try to call mMap.moveCamera(CameraUpdateFactory.newLatLngBounds(latLng

Answer 1

As clearly documented here OnMapReadyCallback

Note that OnMapReadyCallback does not guarantee that the map has undergone layout. Therefore, the map's size may not have been determined by the time the callback method is called. If you need to know the dimensions or call a method in the API that needs to know the dimensions, get the map's View and register an ViewTreeObserver.OnGlobalLayoutListener as well.

Do not chain the OnMapReadyCallback and OnGlobalLayoutListener listeners, but instead register and wait for both callbacks independently, since the callbacks can be fired in any order.

So you have to use both (onMapReady,onGlobalLayout) callbacks to make sure that map have been fully loaded and size has been determined.

private GoogleMap mMap;
private boolean isMapLoaded;

SupportMapFragment mapFragment = (SupportMapFragment)getSupportFragmentManager()
            .findFragmentById(R.id.map);
mapFragment.getMapAsync(this);
mapFragment.getView().getViewTreeObserver().addOnGlobalLayoutListener(this);

@Override
public void onMapReady(GoogleMap googleMap) {
    mMap = googleMap;
    if (!isMapLoaded) {
        isMapLoaded = true;
        return;
    }
    initMap();
}

@Override
public void onGlobalLayout() {
    if (!isMapLoaded) {
        isMapLoaded = true;
        return;
    }
    initMap();
}

private void initMap() {
   //maps fully loaded instance with defined size will be available here.
   //mMap.animateCamera();
   //mMap.moveCamera();
}