getmap is deprecated getMapAsync doesnt work - google-maps-android-api-2

Question

My app call getmap() method and notice that is depracated and I've to use getMapAsync() instead, however I've read all posts everywhere on the internet and none helped me. Sometimes I got "null pointer return message". I'll hope someone help me to do that.....
My MapFragment.java:
private void setUpMapIfNeeded() {
if (map == null) {
map = ((MapView) view.findViewById(R.id.map)).getMap();
if (ActivityCompat.checkSelfPermission(activity, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(activity, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
return;
}
map.setMyLocationEnabled(false);
map.getUiSettings().setMyLocationButtonEnabled(false);
map.getUiSettings().setZoomControlsEnabled(false);
btnMyLocation.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
// Location loc = map.getMyLocation();
if (myLocation != null) {
LatLng latLang = new LatLng(myLocation.getLatitude(),
myLocation.getLongitude());
animateCameraToMarker(latLang, true);
}
}
});
map.setOnCameraChangeListener(new OnCameraChangeListener() {
public void onCameraChange(CameraPosition camPos) {
if (currentZoom == -1) {
currentZoom = camPos.zoom;
} else if (camPos.zoom != currentZoom) {
currentZoom = camPos.zoom;
return;
}
if (!isMapTouched) {
curretLatLng = camPos.target;
if (!isAddDestination) {
// layoutMarker.setVisibility(LinearLayout.VISIBLE);
if (listType.size() > 0) {
stopUpdateProvidersLoaction();
getAllProviders(curretLatLng);
}
getAddressFromLocation(camPos.target, etSource);
}
}
isMapTouched = false;
}
});
}
}
The onCreateView:
#Override
public View onCreateView(LayoutInflater inflater, ViewGroup container,
Bundle savedInstanceState) {
...
...
setUpMapIfNeeded();
...
return view;
}
My fragment_map.xml
<FrameLayout
android:id="#+id/mapFrameLayout"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center_horizontal"
android:orientation="vertical"
android:visibility="visible" >
<com.google.android.gms.maps.MapView
android:id="#+id/map"
android:layout_width="match_parent"
android:layout_height="match_parent" />