Тимур Сергеевич Машнин - Разработка Android-приложений с Augmented Reality стр 12.

import android. location. Location;

import android. os. Bundle;

import android.support.annotation.NonNull;

import android.support.annotation.Nullable;

import android.support.v4.app.ActivityCompat;

import android.support.v4.app.FragmentActivity;

import android.widget.Toast;

import com.beyondar.android.plugin. googlemap. GoogleMapWorldPlugin;

import com.beyondar.android.world.GeoObject;

import com.beyondar.android. world. World;

import com.google.android.gms.common.ConnectionResult;

import com.google.android.gms.common. api. GoogleApiClient;

import com.google.android.gms. location. LocationListener;

import com.google.android.gms. location. LocationRequest;

import com.google.android.gms. location. LocationServices;

import com.google.android.gms.maps.CameraUpdateFactory;

import com.google.android.gms.maps. GoogleMap;

import com.google.android.gms.maps. GoogleMap. OnMarkerClickListener;

import com.google.android.gms.maps. OnMapReadyCallback;

import com.google.android.gms.maps.SupportMapFragment;

import com.google.android.gms.maps.model.Marker;

public class GoogleMapActivity extends FragmentActivity implements OnMarkerClickListener, OnMapReadyCallback, LocationListener, GoogleApiClient.ConnectionCallbacks, GoogleApiClient. OnConnectionFailedListener {

private GoogleMap mMap;

private GoogleMapWorldPlugin mGoogleMapPlugin;

private World mWorld;

GoogleApiClient mGoogleApiClient;

Location mCurrentLocation;

LocationRequest mLocationRequest;

@Override

protected void onCreate (Bundle savedInstanceState) {

super. onCreate (savedInstanceState);

setContentView(R.layout.map_google);

((SupportMapFragment) getSupportFragmentManager () .findFragmentById(R.id.map)).getMapAsync (this);

buildGoogleApiClient ();

}

/**

* Builds a GoogleApiClient. Uses the {@code #addApi} method to request the

* LocationServices API.

*/

protected synchronized void buildGoogleApiClient () {

mGoogleApiClient = new GoogleApiClient. Builder (this)

.addConnectionCallbacks (this)

.addOnConnectionFailedListener (this)

.addApi (LocationServices. API)

.build ();

createLocationRequest ();

}

protected void createLocationRequest () {

mLocationRequest = LocationRequest.create ();

// Sets the desired interval for active location updates. This interval is

// inexact. You may not receive updates at all if no location sources are available, or

// you may receive them slower than requested. You may also receive updates faster than

// requested if other applications are requesting location at a faster interval.

mLocationRequest.setInterval (10000);

// Sets the fastest rate for active location updates. This interval is exact, and your

// application will never receive updates

faster than this value.

mLocationRequest.setFastestInterval (5000);

mLocationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);

}

@Override

public void onStart () {

super. onStart ();

mGoogleApiClient.connect ();

}

@Override

public void onStop () {

super. onStop ();

mGoogleApiClient. disconnect ();

}

@Override

public void onResume () {

super. onResume ();

// Within {@code onPause ()}, we pause location updates, but leave the

// connection to GoogleApiClient intact. Here, we resume receiving

// location updates if the user has requested them.

if (mGoogleApiClient.isConnected ()) {

startLocationUpdates ();

}

}

@Override

protected void onPause () {

super. onPause ();

// Stop location updates to save battery, but dont disconnect the GoogleApiClient object.

if (mGoogleApiClient.isConnected ()) {

stopLocationUpdates ();

}

}

protected void startLocationUpdates () {

if (ActivityCompat.checkSelfPermission (this, android.Manifest.permission.ACCESS_FINE_LOCATION)!= PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission (this, android.Manifest.permission.ACCESS_COARSE_LOCATION)!= PackageManager.PERMISSION_GRANTED) {

return;

}

LocationServices.FusedLocationApi.requestLocationUpdates (

mGoogleApiClient, mLocationRequest, this);

}

/**

* Removes location updates from the FusedLocationApi.

*/

protected void stopLocationUpdates () {

// It is a good practice to remove location requests when the activity is in a paused or

// stopped state. Doing so helps battery performance and is especially

// recommended in applications that request frequent location updates.

// The final argument to {@code requestLocationUpdates ()} is a LocationListener

// (http://developer.android.com/reference/com/google/android/gms/location/LocationListener.html).

LocationServices.FusedLocationApi.removeLocationUpdates (mGoogleApiClient, this);

}

@Override

public boolean onMarkerClick (Marker marker) {

// To get the GeoObject that owns the marker we use the following

// method:

GeoObject geoObject = mGoogleMapPlugin.getGeoObjectOwner (marker);

if (geoObject!= null) {

Toast.makeText (this, «Click on a marker owned by a GeoOject with the name: " + geoObject.getName (),

Toast.LENGTH_SHORT).show ();

}

return false;