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Разработка Android-приложений с Augmented Reality

Год написания книги
2017
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}

@Override

protected void onPause () {

super. onPause ();

// Stop location updates to save battery, but don’t 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 void onConnected (@Nullable Bundle bundle) {

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) {

// TODO: Consider calling

// ActivityCompat#requestPermissions

// here to request the missing permissions, and then overriding

// public void onRequestPermissionsResult (int requestCode, String [] permissions,

// int [] grantResults)

// to handle the case where the user grants the permission. See the documentation

// for ActivityCompat#requestPermissions for more details.

return;

}

Location mLastLocation = LocationServices.FusedLocationApi.getLastLocation (mGoogleApiClient);

if (mLastLocation!= null) {

mCurrentLocation = mLastLocation;

String lat = String.valueOf(mCurrentLocation.getLatitude ());

String lon = String.valueOf(mCurrentLocation.getLongitude ());

Toast toast = Toast.makeText (this, «Last location» + lat + " " + lon, Toast. LENGTH_LONG);

toast.show ();

mWorld.clearWorld ();

mWorld = CustomWorldHelper.generateObjects (this, mCurrentLocation);

mBeyondarFragment.setWorld (mWorld);

} else {
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