জিওফেন্স অবজেক্ট তৈরী করুন

নিচের কোড চিত্রটি SimpleGeofence এবং SimpleGeofenceStore ক্লাসগুলো ব্যবহার করে, ইউআই (UI) থেকে জিওফেন্স ডাটা ডাওয়ার জন্য, এটাকে SimpleGeofence অবজেক্টে স্টোর করে, এই অবজেক্টগুলোকে SimpleGeofenceStore অবজেক্টের মধ্যে স্টোর করে, এবং তারপর Geofence অবজেক্ট তৈরী করে:

public class MainActivity extends FragmentActivity {
    ...
    /*
     * Use to set an expiration time for a geofence. After this amount
     * of time Location Services will stop tracking the geofence.
     */
    private static final long SECONDS_PER_HOUR = 60;
    private static final long MILLISECONDS_PER_SECOND = 1000;
    private static final long GEOFENCE_EXPIRATION_IN_HOURS = 12;
    private static final long GEOFENCE_EXPIRATION_TIME =
            GEOFENCE_EXPIRATION_IN_HOURS *
            SECONDS_PER_HOUR *
            MILLISECONDS_PER_SECOND;
    ...
    /*
     * Handles to UI views containing geofence data
     */
    // Handle to geofence 1 latitude in the UI
    private EditText mLatitude1;
    // Handle to geofence 1 longitude in the UI
    private EditText mLongitude1;
    // Handle to geofence 1 radius in the UI
    private EditText mRadius1;
    // Handle to geofence 2 latitude in the UI
    private EditText mLatitude2;
    // Handle to geofence 2 longitude in the UI
    private EditText mLongitude2;
    // Handle to geofence 2 radius in the UI
    private EditText mRadius2;
    /*
     * Internal geofence objects for geofence 1 and 2
     */
    private SimpleGeofence mUIGeofence1;
    private SimpleGeofence mUIGeofence2;
    ...
    // Internal List of Geofence objects
    List<Geofence> mGeofenceList;
    // Persistent storage for geofences
    private SimpleGeofenceStore mGeofenceStorage;
    ...
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        ...
        // Instantiate a new geofence storage area
        mGeofenceStorage = new SimpleGeofenceStore(this);

        // Instantiate the current List of geofences
        mCurrentGeofences = new ArrayList<Geofence>();
    }
    ...
    /**
     * Get the geofence parameters for each geofence from the UI
     * and add them to a List.
     */
    public void createGeofences() {
        /*
         * Create an internal object to store the data. Set its
         * ID to "1". This is a "flattened" object that contains
         * a set of strings
         */
        mUIGeofence1 = new SimpleGeofence(
                "1",
                Double.valueOf(mLatitude1.getText().toString()),
                Double.valueOf(mLongitude1.getText().toString()),
                Float.valueOf(mRadius1.getText().toString()),
                GEOFENCE_EXPIRATION_TIME,
                // This geofence records only entry transitions
                Geofence.GEOFENCE_TRANSITION_ENTER);
        // Store this flat version
        mGeofenceStorage.setGeofence("1", mUIGeofence1);
        // Create another internal object. Set its ID to "2"
        mUIGeofence2 = new SimpleGeofence(
                "2",
                Double.valueOf(mLatitude2.getText().toString()),
                Double.valueOf(mLongitude2.getText().toString()),
                Float.valueOf(mRadius2.getText().toString()),
                GEOFENCE_EXPIRATION_TIME,
                // This geofence records both entry and exit transitions
                Geofence.GEOFENCE_TRANSITION_ENTER |
                Geofence.GEOFENCE_TRANSITION_EXIT);
        // Store this flat version
        mGeofenceStorage.setGeofence(2, mUIGeofence2);
        mGeofenceList.add(mUIGeofence1.toGeofence());
        mGeofenceList.add(mUIGeofence2.toGeofence());
    }
    ...
}

এছাড়াও Geofence অবজেক্টের List যা আপনি মনিটর করতে চান, আপনার প্রয়োজন লোকেশন সার্ভিস প্রদান করা Intent এর সাথে যে এটা আপনার অ্যাপে পাঠায় যখন এটা জিওফেন্স ট্রানজিশন (পরিবর্তন) সনাক্ত করে।