Google Maps v2 Android API blocks UI thread

Question

Inside the FragmentActivity I replace the fragment nested in the TabPageIndicator (2 tabs inside).

The first tab is a fragment with a description.
The second tab - Fragment with a map inside + markers!

When I start FragmentActivity, the pause is about 3-8 seconds (depending on the performance of the phone).

The reason is the map display.

How to speed up the launch?

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FragmentStatePagerAdapter

@Override public Fragment getItem(int position) { switch (position) { case 0: return new Fragment1(); case 1: return new Fragment2(); } return null; } 

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FRAGMENT2

 @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { Log.i(Util.TAG, getClass().getName() + " onCreateView"); if (view != null) { ViewGroup parent = (ViewGroup) view.getParent(); if (parent != null) parent.removeView(view); } try { view = (ViewGroup) inflater.inflate(R.layout.map_view, container, false); } catch (InflateException e) { } setUpMapIfNeeded(); return view; } public void setUpMapIfNeeded() { if (map == null) { SupportMapFragment mapFragment = (SupportMapFragment) getActivity().getSupportFragmentManager().findFragmentById(R.id.map); map = mapFragment.getMap(); if (map != null) { setUpMap(); } else { Toast.makeText(getActivity(), "Unable to create map", Toast.LENGTH_SHORT).show(); } } } private void setUpMap() { map.setMyLocationEnabled(true); map.addMarker(new MarkerOptions().position(KIEV).title("Kiev").snippet("Ukraine"));// .icon(BitmapDescriptorFactory.fromResource(R.drawable.ic_launcher)) map.moveCamera(CameraUpdateFactory.newLatLngZoom(KIEV, 15)); map.animateCamera(CameraUpdateFactory.zoomTo(10), 2000, null); map.setOnMapLoadedCallback(this); } 

I tried to comment on everything except this:

 view = (ViewGroup) inflater.inflate(R.layout.map_view, container, false); 

but the result is the same. Map initialization is too long.

Should I use a separate stream to load the map view? (If so, how can I get the layout and container in the background thread)

I also decided to download the map if the fragment is visible, but it was not a good idea.