Я использую API сервисов Google Play для получения последнего местоположения. Но я заметил, что они вообще не запускают GPS-провайдера, поскольку карты Google автоматически запускают GPS, когда вы находитесь НА УЛИЦЕ.
public class MainActivity extends Activity implements
GooglePlayServicesClient.ConnectionCallbacks,
GooglePlayServicesClient.OnConnectionFailedListener, LocationListener,
com.google.android.gms.location.LocationListener {
private static final int CONNECTION_FAILURE_RESOLUTION_REQUEST = 9000;
FragmentManager myFragmentManager;
static MapFragment myMapFragment;
public static GoogleMap myMap;
LocationClient mLocationClient;
// Milliseconds per second
private static final int MILLISECONDS_PER_SECOND = 1000;
// Update frequency in seconds
public static final int UPDATE_INTERVAL_IN_SECONDS = 5;
// Update frequency in milliseconds
private static final long UPDATE_INTERVAL = MILLISECONDS_PER_SECOND
* UPDATE_INTERVAL_IN_SECONDS;
// The fastest update frequency, in seconds
private static final int FASTEST_INTERVAL_IN_SECONDS = 1;
// A fast frequency ceiling in milliseconds
private static final long FASTEST_INTERVAL = MILLISECONDS_PER_SECOND
* FASTEST_INTERVAL_IN_SECONDS;
private static final String TAG = "CheckCurLocation";
// Define an object that holds accuracy and frequency parameters
LocationRequest mLocationRequest;
boolean mUpdatesRequested;
SharedPreferences mPrefs;
SharedPreferences.Editor mEditor;
Location myCurrentLocation;
Button mLocBtn;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
mLocBtn = (Button) findViewById(R.id.locationBtn);
mPrefs = getSharedPreferences("SharedPreferences", Context.MODE_PRIVATE);
// Get a SharedPreferences editor
mEditor = mPrefs.edit();
mLocationClient = new LocationClient(MainActivity.this, this, this);
mUpdatesRequested = false;
mLocationRequest = LocationRequest.create();
// Use high accuracy
myFragmentManager = getFragmentManager();
myMapFragment = (MapFragment) myFragmentManager
.findFragmentById(R.id.map);
/* startActivity(new Intent(
Settings.ACTION_LOCATION_SOURCE_SETTINGS));*/
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
getMenuInflater().inflate(R.menu.main, menu);
return true;
}
@Override
protected void onPause() {
mEditor.putBoolean("KEY_UPDATES_ON", mUpdatesRequested);
mEditor.commit();
super.onPause();
}
public void getLoction(View v) {
if (mLocationClient.isConnected()) {
Log.d(TAG, "Location client connected");
Location currentLocation = mLocationClient.getLastLocation();
Toast.makeText(MainActivity.this, "client connected",
Toast.LENGTH_LONG).show();
if (currentLocation != null) {
Log.d(TAG, "Location client connected");
Log.d(TAG, "Lasloc === " + currentLocation);
drawMap(currentLocation);
} else {
MainActivity.this.startActivity(new Intent(
Settings.ACTION_LOCATION_SOURCE_SETTINGS));
Log.d(TAG, "location null");
Toast.makeText(MainActivity.this, " location null",
Toast.LENGTH_LONG).show();
}
} else if (mLocationClient.isConnecting()) {
Log.d(TAG, "client connecting");
Toast.makeText(MainActivity.this, "client connecting",
Toast.LENGTH_LONG).show();
} else {
Log.d(TAG, "client not connected");
Toast.makeText(MainActivity.this, "client not connected",
Toast.LENGTH_LONG).show();
}
}
@Override
protected void onResume() {
super.onResume();
/*
* Get any previous setting for location updates Gets "false" if an
* error occurs
*/
if (mPrefs.contains("KEY_UPDATES_ON")) {
mUpdatesRequested = mPrefs.getBoolean("KEY_UPDATES_ON", false);
// Otherwise, turn off location updates
} else {
mEditor.putBoolean("KEY_UPDATES_ON", false);
mEditor.commit();
}
/*
* Location currentLocation = mLocationClient.getLastLocation();
* drawMap(mLocationClient.getLastLocation()); }
*/
}
private void drawMap(Location lastLocation) {
myMap = myMapFragment.getMap();
if (myMap != null) {
final LatLng HAMBURG = new LatLng(lastLocation.getLatitude(),
lastLocation.getLongitude());
Toast.makeText(MainActivity.this, "update google play services"+lastLocation.getLatitude()+","+lastLocation.getLongitude(),
Toast.LENGTH_LONG).show();
myMap.clear();
myMap.setMapType(GoogleMap.MAP_TYPE_HYBRID);
myMap.getUiSettings().setZoomControlsEnabled(true);
myMap.getUiSettings().setCompassEnabled(true);
myMap.getUiSettings().setAllGesturesEnabled(true);
myMap.getUiSettings().setMyLocationButtonEnabled(true);
myMap.setMapType(GoogleMap.MAP_TYPE_NORMAL);
myMap.animateCamera(CameraUpdateFactory.newCameraPosition(new CameraPosition(HAMBURG, 14, 0, 90)));
myMap.addMarker(new MarkerOptions().position(HAMBURG)
.title("I am here"+lastLocation.getLatitude()+","+lastLocation.getLongitude()).flat(true).rotation(245));
} else if (GooglePlayServicesUtil
.isGooglePlayServicesAvailable(getApplicationContext()) != ConnectionResult.SUCCESS) {
Toast.makeText(MainActivity.this, "update google play services",
Toast.LENGTH_LONG).show();
}
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle action bar item clicks here. The action bar will
// automatically handle clicks on the Home/Up button, so long
// as you specify a parent activity in AndroidManifest.xml.
int id = item.getItemId();
if (id == R.id.action_settings) {
return true;
}
return super.onOptionsItemSelected(item);
}
@Override
public void onConnectionFailed(ConnectionResult result) {
/*
* Google Play services can resolve some errors it detects. If the error
* has a resolution, try sending an Intent to start a Google Play
* services activity that can resolve error.
*/
if (result.hasResolution()) {
try {
// Start an Activity that tries to resolve the error
result.startResolutionForResult(this,
CONNECTION_FAILURE_RESOLUTION_REQUEST);
/*
* Thrown if Google Play services canceled the original
* PendingIntent
*/
} catch (IntentSender.SendIntentException e) {
// Log the error
e.printStackTrace();
}
} else {
Toast.makeText(MainActivity.this, "update services",
Toast.LENGTH_LONG).show();
}
}
@Override
protected void onStart() {
super.onStart();
mLocationClient.connect();
}
@Override
protected void onStop() {
super.onStop();
mLocationClient.disconnect();
}
@Override
public void onConnected(Bundle connectionHint) {
Toast.makeText(this, "Connected", Toast.LENGTH_SHORT).show();
// If already requested, start periodic updates
mLocationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
// Set the update interval to 5 seconds
mLocationRequest.setInterval(UPDATE_INTERVAL);
// Set the fastest update interval to 1 second
mLocationRequest.setFastestInterval(FASTEST_INTERVAL);
mLocationClient.requestLocationUpdates(mLocationRequest, this);
Log.d(TAG, "Location client Connected =========");
}
@Override
public void onDisconnected() {
Toast.makeText(this, "Dis Connected", Toast.LENGTH_SHORT).show();
if (mLocationClient.isConnected()) {
/*
* Remove location updates for a listener. The current Activity is
* the listener, so the argument is "this".
*/
mLocationClient.removeLocationUpdates(this);
// removeLocationUpdates(this);
}
/*
* After disconnect() is called, the client is considered "dead".
*/
mLocationClient.disconnect();
Log.d(TAG, "Location client disconnected =========");
super.onStop();
}
@Override
public void onLocationChanged(Location location) {
String msg = "Updated Location: "
+ Double.toString(location.getLatitude()) + ","
+ Double.toString(location.getLongitude());
Log.d(TAG, "Onlocation changed" + msg);
}
@Override
public void onStatusChanged(String provider, int status, Bundle extras) {
// TODO Auto-generated method stub
}
@Override
public void onProviderEnabled(String provider) {
// TODO Auto-generated method stub
}
@Override
public void onProviderDisabled(String provider) {
// TODO Auto-generated method stub
}
}
манифест
<permission
android:name="com.example.checkmaps.permission.MAPS_RECEIVE"
android:protectionLevel="signature" />
<uses-feature
android:glEsVersion="0x00020000"
android:required="true" />
<uses-permission android:name="com.vogella.android.locationapi.maps.permission.MAPS_RECEIVE" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" />
<uses-permission android:name="com.google.android.providers.gsf.permission.READ_GSERVICES" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
включить все настройки на основе местоположения в телефоне
проблема: я не могу получать какие-либо периодические обновления на основе GPS на открытом воздухе, поскольку карты Google получают периодическое обновление на основе GPS, я что-то упустил в настройках запроса местоположения
