Google Maps Android API v2 : mapFragment.getMap() returns null

If mapFragment.getMap() returns null then map is not verified from the GooglePlayServices.

Google Play Services

Give apps more features to attract users on a wider range of devices. With Google Play services, our app can take advantage of the latest, Google-powered features such as Maps, Google+, and more, with automatic platform updates distributed as an APK through the Google Play store.

This type of exception occurs when there are no proper GooglePlayServices updates.

We can check using GooglePlayServicesUtil.isGooglePlayServicesAvailable(this) method, Which returns status code indicating whether there was an error or not.

public static int isGooglePlayServicesAvailable (Context context)

Verifies that Google Play services is installed and enabled on this device, and that the version installed on this device is no older than the one required by this client.

Returns

status code indicating whether there was an error. Can be one of following in ConnectionResult: SUCCESS, SERVICE_MISSING, SERVICE_VERSION_UPDATE_REQUIRED, SERVICE_DISABLED, SERVICE_INVALID, DATE_INVALID.

Map the output of GooglePlayServicesUtil.isGooglePlayServicesAvailable(this) return value with ConnectionResult class Constants. We can find the response of GooglePlayServices.

Fragment fragment = getSupportFragmentManager().findFragmentById(R.id.map);

mapFragment = (SupportMapFragment) fragment;

map = mapFragment.getMap();

if (map != null) {

// The Map is verified. It is now safe to manipulate the map.

}else {

int checkGooglePlayServices = GooglePlayServicesUtil

.isGooglePlayServicesAvailable(this);

if (checkGooglePlayServices != ConnectionResult.SUCCESS) {

// google play services is missing!!!!

* Returns status code indicating whether there was an error.

* Can be one of following in ConnectionResult: SUCCESS,

* SERVICE_MISSING, SERVICE_VERSION_UPDATE_REQUIRED,

* SERVICE_DISABLED, SERVICE_INVALID.

GooglePlayServicesUtil.getErrorDialog(checkGooglePlayServices,

this, REQUEST_CODE_RECOVER_PLAY_SERVICES).show();

}

}

Below are the error codes used by GooglePlayServicesClient.OnConnectionFailedListener

Constants
int	DATE_INVALID	The device date is likely set incorrectly.
int	DEVELOPER_ERROR	The application is misconfigured.
int	DRIVE_EXTERNAL_STORAGE_REQUIRED	The Drive API requires external storage (such as an SD card), but no external storage is mounted.
int	INTERNAL_ERROR	An internal error occurred.
int	INVALID_ACCOUNT	The client attempted to connect to the service with an invalid account name specified.
int	LICENSE_CHECK_FAILED	The application is not licensed to the user.
int	NETWORK_ERROR	A network error occurred.
int	RESOLUTION_REQUIRED	Completing the connection requires some form of resolution.
int	SERVICE_DISABLED	The installed version of Google Play services has been disabled on this device.
int	SERVICE_INVALID	The version of the Google Play services installed on this device is not authentic.
int	SERVICE_MISSING	Google Play services is missing on this device.
int	SERVICE_VERSION_UPDATE_REQUIRED	The installed version of Google Play services is out of date.
int	SIGN_IN_REQUIRED	The client attempted to connect to the service but the user is not signed in.
int	SUCCESS	The connection was successful.