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without turn on location not showing current location in android

Hi in the below code am setting current location to my application.If it is turn on the location by manually it was showing current location.
If am not turn it on it was showing nothing in my map.
But i want to display the permission to turn on location and have written the code but it is not working .
can any one please help to resolve this issue.
MapsActivity.java:
public class MapsActivity extends FragmentActivity implements OnMapReadyCallback, GoogleApiClient.ConnectionCallbacks, GoogleApiClient.OnConnectionFailedListener, LocationListener {
private static final int LOCATION_REQUESTOR = 101;
#Bind(R.id.back)
TextView mBack;
#Bind(R.id.location)
TextView mLocation;
#Bind(R.id.toolBar)
Toolbar mToolBar;
#Bind(R.id.map_address)
TextView mMapAddress;
#Bind(R.id.latitude)
EditText mLatitude;
#Bind(R.id.longitude)
EditText mLongitude;
#Bind(R.id.setLocation)
Button mSetLocation;
private Location mLastLocation;
private GoogleMap mMap;
Marker mCurrLocationMarker;
private GoogleApiClient mGoogleApiClient;
private LocationRequest mLocationRequest;
private SharedPreferences mPref;
private SolarBLEPacket mSolarController = new SolarBLEPacket();
#Override
protected void onCreate(#Nullable Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_maps);
ButterKnife.bind(this);
mPref = PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
final SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map);
mapFragment.getMapAsync(this);
}
protected synchronized void buildGoogleApiClient() {
mGoogleApiClient = new GoogleApiClient.Builder(this)
.addConnectionCallbacks(this)
.addOnConnectionFailedListener(this)
.addApi(LocationServices.API)
.build();
mGoogleApiClient.connect();
}
#Override
public void onConnected(#Nullable Bundle bundle) {
mLocationRequest = new LocationRequest();
mLocationRequest.setInterval(1000);
mLocationRequest.setFastestInterval(1000);
mLocationRequest.setPriority(LocationRequest.PRIORITY_BALANCED_POWER_ACCURACY);
if (ContextCompat.checkSelfPermission(this,
Manifest.permission.ACCESS_FINE_LOCATION)
== PackageManager.PERMISSION_GRANTED) {
LocationServices.FusedLocationApi.requestLocationUpdates(mGoogleApiClient, mLocationRequest, this);
}
}
#Override
public void onConnectionSuspended(int i) {
}
#Override
public void onConnectionFailed(#NonNull ConnectionResult connectionResult) {
}
#Override
public void onLocationChanged(Location location) {
mLastLocation = location;
if (mCurrLocationMarker != null) {
mCurrLocationMarker.remove();
}
LatLng latLng = new LatLng(location.getLatitude(), location.getLongitude());
MarkerOptions markerOptions = new MarkerOptions();
markerOptions.position(latLng);
markerOptions.title("Current Position");
markerOptions.icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_MAGENTA));
mCurrLocationMarker = mMap.addMarker(markerOptions);
//move map camera
mMap.moveCamera(CameraUpdateFactory.newLatLngZoom(latLng,11));
mLongitude.setText(latLng.longitude + "");
mLatitude.setText(latLng.latitude + "");
}
#Override
public void onMapReady(GoogleMap googleMap)
{
mMap=googleMap;
mMap.setMapType(GoogleMap.MAP_TYPE_HYBRID);
//Initialize Google Play Services
if (android.os.Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
if (ContextCompat.checkSelfPermission(this,
Manifest.permission.ACCESS_FINE_LOCATION)
== PackageManager.PERMISSION_GRANTED) {
//Location Permission already granted
buildGoogleApiClient();
mMap.setMyLocationEnabled(true);
} else {
//Request Location Permission
checkLocationPermission();
}
}
else {
buildGoogleApiClient();
mMap.setMyLocationEnabled(true);
}
}
public static final int MY_PERMISSIONS_REQUEST_LOCATION = 99;
public boolean checkLocationPermission() {
if (ContextCompat.checkSelfPermission(this,
Manifest.permission.ACCESS_FINE_LOCATION)
!= PackageManager.PERMISSION_GRANTED) {
// Should we show an explanation?
if (ActivityCompat.shouldShowRequestPermissionRationale(this,
Manifest.permission.ACCESS_FINE_LOCATION)) {
// Show an explanation to the user *asynchronously* -- don't block
// this thread waiting for the user's response! After the user
// sees the explanation, try again to request the permission.
new AlertDialog.Builder(this)
.setTitle(R.string.title_location_permission)
.setMessage(R.string.text_location_permission)
.setPositiveButton(R.string.ok, new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialogInterface, int i) {
//Prompt the user once explanation has been shown
ActivityCompat.requestPermissions(MapsActivity.this,
new String[]{Manifest.permission.ACCESS_FINE_LOCATION},
MY_PERMISSIONS_REQUEST_LOCATION);
}
})
.create()
.show();
} else {
// No explanation needed, we can request the permission.
ActivityCompat.requestPermissions(this,
new String[]{Manifest.permission.ACCESS_FINE_LOCATION},
MY_PERMISSIONS_REQUEST_LOCATION);
}
return false;
} else {
return true;
}
}
#Override
public void onRequestPermissionsResult(int requestCode, String permissions[], int[] grantResults) {
switch (requestCode) {
case MY_PERMISSIONS_REQUEST_LOCATION: {
// If request is cancelled, the result arrays are empty.
if (grantResults.length > 0
&& grantResults[0] == PackageManager.PERMISSION_GRANTED) {
// permission was granted, yay! Do the
// location-related task you need to do.
if (ContextCompat.checkSelfPermission(this,
Manifest.permission.ACCESS_FINE_LOCATION)
== PackageManager.PERMISSION_GRANTED) {
//Request location updates:
//.requestLocationUpdates(provider, 400, 1, this);
}
} else {
// permission denied, boo! Disable the
// functionality that depends on this permission.
}
return;
}
}
}
#OnClick(R.id.setLocation)
public void onClick() {
Intent intent = new Intent();
String longtitude = mLongitude.getText().toString();
if (!TextUtils.isEmpty(longtitude)) {
intent.putExtra(Constants.LONGITUDE, longtitude);
} else {
Toast.makeText(this, R.string.please_enter_longitude, Toast.LENGTH_SHORT).show();
return;
}
String latitude = mLatitude.getText().toString();
if (!TextUtils.isEmpty(latitude)) {
intent.putExtra(Constants.LATITUDE, latitude);
} else {
Toast.makeText(this, R.string.please_enter_latitude, Toast.LENGTH_SHORT).show();
return;
}
String latCommand = mSolarController.generatePacket("lat " +latitude,"00");
String longitudeCmd = mSolarController.generatePacket("lon "+longtitude,"00");
mPref.edit().putString(Constants.LAT_COMMAND,latCommand).commit();
mPref.edit().putString(Constants.LONG_COMMAND,longitudeCmd).commit();
mPref.edit().putString(Constants.LAST_LATITUDE,latitude).commit();
mPref.edit().putString(Constants.LAST_LONGITUDE,latitude).commit();
setResult(RESULT_OK, intent);
finish();
}
#OnClick({R.id.back, R.id.location})
public void onClick(View view) {
switch (view.getId()) {
case R.id.back:
setResult(RESULT_OK, new Intent());
finish();
break;
case R.id.location:
Intent intent = new Intent();
String longtitude = mLongitude.getText().toString();
if (!TextUtils.isEmpty(longtitude)) {
intent.putExtra(Constants.LONGITUDE, longtitude);
} else {
Toast.makeText(this, R.string.please_enter_longitude, Toast.LENGTH_SHORT).show();
return;
}
String latitude = mLatitude.getText().toString();
if (!TextUtils.isEmpty(latitude)) {
intent.putExtra(Constants.LATITUDE, latitude);
} else {
Toast.makeText(this, R.string.please_enter_latitude, Toast.LENGTH_SHORT).show();
return;
}
Float lat = Float.parseFloat(latitude);
if (lat > 90 || lat < -90) {
Toast.makeText(this, R.string.longitude_alert, Toast.LENGTH_SHORT).show();
return;
}
float lan = Float.parseFloat(longtitude);
if (lan > 180 || lan < -180) {
Toast.makeText(this, R.string.latitude_alert, Toast.LENGTH_SHORT).show();
return;
}
String latCommand = mSolarController.generatePacket("lat "+latitude,"00");
String longitudeCmd = mSolarController.generatePacket("long "+longtitude,"00");
mPref.edit().putString(Constants.LAT_COMMAND,latCommand).commit();
mPref.edit().putString(Constants.LONG_COMMAND,longitudeCmd).commit();
mPref.edit().putString(Constants.LAST_LATITUDE,latitude).commit();
mPref.edit().putString(Constants.LAST_LONGITUDE,latitude).commit();
setResult(RESULT_OK, intent);
finish();
break;
}
}
}

You are just checking the permission, You need to check whether is location is enable of the device or not.
LocationManager lm = (LocationManager)context.getSystemService(Context.LOCATION_SERVICE);
boolean gps_enabled = false;
boolean network_enabled = false;
try {
gps_enabled = lm.isProviderEnabled(LocationManager.GPS_PROVIDER);
} catch(Exception ex) {}
try {
network_enabled = lm.isProviderEnabled(LocationManager.NETWORK_PROVIDER);
} catch(Exception ex) {}
if(!gps_enabled && !network_enabled) {
// notify user
AlertDialog.Builder dialog = new AlertDialog.Builder(context);
dialog.setMessage(context.getResources().getString(R.string.gps_network_not_enabled));
dialog.setPositiveButton(context.getResources().getString(R.string.open_location_settings), new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface paramDialogInterface, int paramInt) {
// TODO Auto-generated method stub
Intent myIntent = new Intent( Settings.ACTION_LOCATION_SOURCE_SETTINGS);
context.startActivity(myIntent);
//get gps
}
});
dialog.setNegativeButton(context.getString(R.string.Cancel), new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface paramDialogInterface, int paramInt) {
// TODO Auto-generated method stub
}
});
dialog.show();
}

how to ask GPS permission and after finish show map

I m working on map and i m new in map . i m displaying map(v1) and working perfect but my problem is marshmallow i have to ask run time permition i m displaying permition dialog runtime but after permit-ion display same time map is also displaying and crashing because after display permission-dialog map location working even i dint permit my question is i want display map if permission granted without permeation always ask permission.
my code is.
public class MapsActivity extends FragmentActivity implements LocationListener {
GoogleMap googleMap;
String username, password;
JSONParser jsonParser = new JSONParser();
SessionManager session;
Location location;
String bestProvider;
LocationManager locationManager;
;
SharedPreferences.Editor editor;
private static final int MY_PERMISSION_REQUEST_READ_FINE_LOCATION = 111;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (ContextCompat.checkSelfPermission(getApplication(),
Manifest.permission.ACCESS_FINE_LOCATION)
!= PackageManager.PERMISSION_GRANTED &&
ContextCompat.checkSelfPermission( getApplicationContext(), android.Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
// Should we show an explanation?
if (ActivityCompat.shouldShowRequestPermissionRationale(MapsActivity.this,
Manifest.permission.ACCESS_FINE_LOCATION)) {
// Show an expanation to the user *asynchronously* -- don't block
// this thread waiting for the user's response! After the user
// sees the explanation, try again to request the permission.
} else {
// No explanation needed, we can request the permission.
ActivityCompat.requestPermissions(MapsActivity.this,
new String[]{Manifest.permission.READ_CONTACTS},
MY_PERMISSION_REQUEST_READ_FINE_LOCATION);
// MY_PERMISSION_REQUEST_READ_FINE_LOCATION is an
// app-defined int constant. The callback method gets the
// result of the request.
}
}
if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, 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;
}
//show error dialog if GoolglePlayServices not available
if (!isGooglePlayServicesAvailable()) {
finish();
}
final LocationManager manager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
if (!manager.isProviderEnabled(LocationManager.GPS_PROVIDER)) {
buildAlertMessageNoGps();
}
setContentView(R.layout.activity_maps);
SupportMapFragment supportMapFragment =
(SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.googleMap);
googleMap = supportMapFragment.getMap();
googleMap.setMyLocationEnabled(true);
session = new SessionManager(getApplicationContext());
HashMap<String, String> user = session.getUserDetails();
username = user.get(SessionManager.KEY_NAME);
password = user.get(SessionManager.KEY_PASSWORD);
locationManager = (LocationManager) getSystemService(LOCATION_SERVICE);
Criteria criteria = new Criteria();
bestProvider = locationManager.getBestProvider(criteria, true);
location = locationManager.getLastKnownLocation(bestProvider);
if (location != null) {
onLocationChanged(location);
}
locationManager.requestLocationUpdates(bestProvider, 20000, 0, this);
}
#Override
public void onRequestPermissionsResult(int requestCode,
String permissions[], int[] grantResults) {
switch (requestCode) {
case MY_PERMISSION_REQUEST_READ_FINE_LOCATION: {
// If request is cancelled, the result arrays are empty.
if (grantResults.length > 0
&& grantResults[0] == PackageManager.PERMISSION_GRANTED) {
// permission was granted, yay! Do the
// contacts-related task you need to do.
} else {
// permission denied, boo! Disable the
// functionality that depends on this permission.
}
return;
}
// other 'case' lines to check for other
// permissions this app might request
}
}
#Override
public void onLocationChanged(Location location) {
double latitude = location.getLatitude();
double longitude = location.getLongitude();
LatLng latLng = new LatLng(latitude, longitude);
// LatLng initialLoc= googleMap.getCameraPosition().target;
// googleMap.addMarker(new MarkerOptions().position(latLng));*/
googleMap.moveCamera(CameraUpdateFactory.newLatLng(latLng));
googleMap.animateCamera(CameraUpdateFactory.zoomTo(60));
// LatLng coordinate = new LatLng(lat, lng); //Store these lat lng values somewhere. These should be constant.
CameraUpdate location1 = CameraUpdateFactory.newLatLngZoom(
latLng, 20);
googleMap.animateCamera(location1);
}
#Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu items for use in the action bar
MenuInflater inflater = getMenuInflater();
ActionBar actionBar = getActionBar();
actionBar.setHomeButtonEnabled(true);
actionBar.setDisplayShowHomeEnabled(false);
getActionBar().setDisplayHomeAsUpEnabled(true);
//actionBar.setDisplayUseLogoEnabled(false);
inflater.inflate(R.menu.main, menu);
return super.onCreateOptionsMenu(menu);
}
#Override
public boolean onOptionsItemSelected(MenuItem item) {
// Handle presses on the action bar items
switch (item.getItemId()) {
case android.R.id.home:
onBackPressed();
return true;
case R.id.notify_setting:
new Logout().execute();
return true;
case R.id.changepassword:
Intent nextscreen = new Intent(getApplicationContext(), Changepassword.class);
startActivity(nextscreen);
return true;
}
return false;
}
#Override
public void onProviderDisabled(String provider) {
// TODO Auto-generated method stub
}
#Override
public void onProviderEnabled(String provider) {
// TODO Auto-generated method stub
}
#Override
public void onStatusChanged(String provider, int status, Bundle extras) {
// TODO Auto-generated method stub
}
private boolean isGooglePlayServicesAvailable() {
int status = GooglePlayServicesUtil.isGooglePlayServicesAvailable(this);
if (ConnectionResult.SUCCESS == status) {
return true;
} else {
GooglePlayServicesUtil.getErrorDialog(status, this, 0).show();
return false;
}
}
class Logout extends AsyncTask<String, String, String> {
/**
* Before starting background thread Show Progress Dialog
* */
#Override
protected void onPreExecute() {
Toast.makeText(getApplicationContext(), "Please Wait For Logout", Toast.LENGTH_SHORT).show();
//pDialog = new ProgressDialog(MainActivity.this);
//pDialog.setMessage("Please Wait..");
//pDialog.setIndeterminate(false);
//pDialog.setCancelable(true);
//pDialog.show();
}
/**
* Creating product
* */
protected String doInBackground(String... args) {
if (AllChanges.checkinternet()) {
// Building Parameters
List<NameValuePair> params = new ArrayList<NameValuePair>();
params.add(new BasicNameValuePair("username", username));
params.add(new BasicNameValuePair("password", password));
JSONObject json = jsonParser.makeHttpRequest(AllChanges.Url + "?r=api/getresponse&model=gpslogout&type=logout",
"POST", params);
if (json != null) {
// check for success tag
try {
int success = json.getInt("success");
if (success == 1) {
runOnUiThread(new Runnable() {
#Override
public void run() {
session.logoutUser();
cancelAlarmManager();
finish();
}
});
} else {
runOnUiThread(new Runnable() {
#Override
public void run() {
Toast.makeText(getApplicationContext(), "Try After Some Time", Toast.LENGTH_LONG).show();
}
});
}
} catch (JSONException e) {
e.printStackTrace();
}
} else {
runOnUiThread(new Runnable() {
#Override
public void run() {
Toast.makeText(getApplicationContext(), "Check Internet Connection", Toast.LENGTH_SHORT).show();
}
});
}
} else {
runOnUiThread(new Runnable() {
#Override
public void run() {
Toast.makeText(getApplicationContext(), "Check Internet Connection", Toast.LENGTH_SHORT).show();
}
});
}
return null;
}
/**
* After completing background task Dismiss the progress dialog
* **/
protected void onPostExecute(String file_url) {
// dismiss the dialog once done
}
}
public void cancelAlarmManager() {
Log.d("hi", "cancelAlarmManager");
Context context = getBaseContext();
Intent gpsTrackerIntent = new Intent(context, GpsTrackerAlarmReceiver.class);
PendingIntent pendingIntent = PendingIntent.getBroadcast(context, 0, gpsTrackerIntent, 0);
AlarmManager alarmManager = (AlarmManager) context.getSystemService(Context.ALARM_SERVICE);
alarmManager.cancel(pendingIntent);
SharedPreferences sharedPreferences = this.getSharedPreferences("com.websmithing.gpstracker.prefs", Context.MODE_PRIVATE);
editor = sharedPreferences.edit();
editor.putBoolean("currentlyTracking", false);
editor.apply();
}
#Override
protected void onResume() {
super.onResume();
if (location != null) {
onLocationChanged(location);
}
if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, 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;
}
locationManager.requestLocationUpdates(bestProvider, 20000, 0, this);
}
private void buildAlertMessageNoGps() {
final AlertDialog.Builder builder = new AlertDialog.Builder(this);
builder.setMessage("Your GPS seems to be disabled, do you want to enable it?")
.setCancelable(false)
.setPositiveButton("Yes", new DialogInterface.OnClickListener() {
public void onClick(#SuppressWarnings("unused") final DialogInterface dialog, #SuppressWarnings("unused") final int id) {
startActivity(new Intent(android.provider.Settings.ACTION_LOCATION_SOURCE_SETTINGS));
}
})
.setNegativeButton("No", new DialogInterface.OnClickListener() {
public void onClick(final DialogInterface dialog, #SuppressWarnings("unused") final int id) {
dialog.cancel();
}
});
final AlertDialog alert = builder.create();
alert.show();
}
}

Try this,
private Context mContext=YourActivity.this;
private static final int REQUEST = 112;
if (Build.VERSION.SDK_INT >= 23) {
String[] PERMISSIONS = {android.Manifest.permission.ACCESS_COARSE_LOCATION,android.Manifest.permission.ACCESS_FINE_LOCATION};
if (!hasPermissions(mContext, PERMISSIONS)) {
ActivityCompat.requestPermissions((Activity) mContext, PERMISSIONS, REQUEST );
} else {
//call get location here
}
} else {
//call get location here
}
get Permissions Result
#Override
public void onRequestPermissionsResult(int requestCode, #NonNull String[] permissions, #NonNull int[] grantResults) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
switch (requestCode) {
case REQUEST: {
if (grantResults.length > 0 && grantResults[0] == PackageManager.PERMISSION_GRANTED) {
//call get location here
} else {
Toast.makeText(mContext, "The app was not allowed to access your location", Toast.LENGTH_LONG).show();
}
}
}
}
check permissions for marshmallow
private static boolean hasPermissions(Context context, String... permissions) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M && context != null && permissions != null) {
for (String permission : permissions) {
if (ActivityCompat.checkSelfPermission(context, permission) != PackageManager.PERMISSION_GRANTED) {
return false;
}
}
}
return true;
}
Manifest
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
getLocation
public void getLocation()
{
locationManager = (LocationManager) getSystemService(LOCATION_SERVICE);
Criteria criteria = new Criteria();
bestProvider = locationManager.getBestProvider(criteria, true);
location = locationManager.getLastKnownLocation(bestProvider);
if (location != null) {
onLocationChanged(location);
}
locationManager.requestLocationUpdates(bestProvider, 20000, 0, this);
}

Unable to view current coordinates on button click in android studio

I am creating an app which will get a user name from DB and print the ID and then on button click it will show the current GPS coordinates. I have implemented it but don't know why its not working.
Here is my Manifest file
<uses-permission android:name="android.permission.INTERNET"/>
<uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
<uses-permission android:name="android.permission.ACCESS_FINE_LOCATION"/>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
Below is my MainActivity.java
public class MainActivity extends AppCompatActivity implements GoogleApiClient.ConnectionCallbacks, GoogleApiClient.OnConnectionFailedListener, LocationListener {
private static final String TAG = "MainActivity";
private TextView tv_lat;
private TextView tv_long;
private Button btn_loc;
private GoogleApiClient googleApiClient;
private Location location;
private LocationManager mLocationManager;
private LocationManager locationManager;
private LocationRequest locationRequest;
private LocationListener locationListener;
private long UPDATE_INTERVAL = 2 * 1000; /* 10 secs */
private long FASTEST_INTERVAL = 2000; /* 2 sec */
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
tv_lat = (TextView)findViewById(R.id.tv_lat);
tv_long = (TextView)findViewById(R.id.tv_long);
btn_loc = (Button)findViewById(R.id.btn_loc);
// show location button click event
btn_loc.setOnClickListener(new View.OnClickListener() {
#Override
public void onClick(View v) {
googleApiClient = new GoogleApiClient.Builder(MainActivity.this)
.addConnectionCallbacks(MainActivity.this)
.addOnConnectionFailedListener(MainActivity.this)
.addApi(LocationServices.API)
.build();
}
});
mLocationManager = (LocationManager)getSystemService(Context.LOCATION_SERVICE);
checkLocation(); //check whether location service is enable or not in your phone
}
#Override
public void onConnected(Bundle bundle) {
if(ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED &&
ActivityCompat.checkSelfPermission(this, 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;
}
startLocationUpdates();
location = LocationServices.FusedLocationApi.getLastLocation(googleApiClient);
if(location == null)
{
startLocationUpdates();
}
if (location != null)
{
}
else {
Toast.makeText(this, "Location not Detected", Toast.LENGTH_SHORT).show();
}
}
#Override
public void onConnectionSuspended(int i) {
Log.i(TAG, "Connection Suspended");
googleApiClient.connect();
}
#Override
public void onConnectionFailed(ConnectionResult connectionResult) {
Log.i(TAG, "Connection failed. Error: " + connectionResult.getErrorCode());
}
#Override
protected void onStart() {
super.onStart();
if (googleApiClient != null) {
googleApiClient.connect();
}
}
#Override
protected void onStop() {
super.onStop();
if (googleApiClient.isConnected()) {
googleApiClient.disconnect();
}
}
private void startLocationUpdates() {
// Create the location request
locationRequest = LocationRequest.create()
.setPriority(LocationRequest.PRIORITY_BALANCED_POWER_ACCURACY)
.setInterval(UPDATE_INTERVAL)
.setFastestInterval(FASTEST_INTERVAL);
// Request location updates
if(ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED &&
ActivityCompat.checkSelfPermission(this, 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;
}
LocationServices.FusedLocationApi.requestLocationUpdates(googleApiClient,
locationRequest, this);
Log.d("reque", "--->>>>");
}
#Override
public void onLocationChanged(Location location) {
double lattitude = location.getLatitude();
double longitude = location.getLongitude();
String msg = "Updated Location: " +
Double.toString(lattitude) + " , " +
Double.toString(longitude);
tv_lat.setText("Latitude is " + lattitude );
tv_long.setText("Longitude is " + longitude);
Toast.makeText(this, msg, Toast.LENGTH_SHORT).show();
// You can now create a LatLng Object for use with maps
LatLng latLng = new LatLng(location.getLatitude(), location.getLongitude());
}
private boolean checkLocation() {
if(!isLocationEnabled())
showAlert();
return isLocationEnabled();
}
private boolean isLocationEnabled() {
locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
return locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER) ||
locationManager.isProviderEnabled(LocationManager.NETWORK_PROVIDER);
}
public static final int MY_PERMISSIONS_REQUEST_LOCATION = 99;
private void showAlert() {
if (ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION)
!= PackageManager.PERMISSION_GRANTED) {
// Should we show an explanation?
if (ActivityCompat.shouldShowRequestPermissionRationale(this,
Manifest.permission.ACCESS_FINE_LOCATION)) {
final AlertDialog.Builder dialog = new AlertDialog.Builder(this);
dialog.setTitle("Enable Location")
.setMessage("Your Locations Settings is set to 'Off'.\nPlease Enable Location to " +
"use this app")
.setPositiveButton("Location Settings", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface paramDialogInterface, int paramInt) {
Intent myIntent = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS);
startActivity(myIntent);
}
})
.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface paramDialogInterface, int paramInt) {
}
});
dialog.create().show();
}
}
else {
// No explanation needed, we can request the permission.
ActivityCompat.requestPermissions(this,
new String[]{Manifest.permission.ACCESS_FINE_LOCATION},
MY_PERMISSIONS_REQUEST_LOCATION );
}
}
}
When i run my app on the my device, below result is shown
When i click on the get location coordinates nothing happens. Also no errors or warnings are shown in logcat.
Update 1
I have moved all the code outside from the button click event
googleApiClient = new GoogleApiClient.Builder(this)
.addConnectionCallbacks(this)
.addOnConnectionFailedListener(this)
.addApi(LocationServices.API)
.build();
googleApiClient.connect();
mLocationManager = (LocationManager)getSystemService(Context.LOCATION_SERVICE);
And then debugged it, and i got the below result.
I don't know why the coordinates are not showing :(
Any help would be highly appreciated.

When your device is over Android 6.0 Marshmallow, you have to check, that the location permission is allowed in the application settings. You can turn it manually in the settings on or you use the runtime permission library. I've found a very useful library for that: https://github.com/ParkSangGwon/TedPermission

go to mobile settings-->location settings
check whether your mobile GPS service is on or off
and turn on if it is off.
hope this helps.

Android location service working in emulator, not on real device using AsyncTask?

I am using AsyncTask for getting the user location using best provider criteria. It works on the emulator, but not on the real device.
I am using Criteria() to select the best provider and getLastKnownLocation to get the location.
Here is my code:
class GetPositionTask extends AsyncTask<Void, Void, Location> implements LocationListener
{
ProgressDialog progressDialog;
private Location location;
private LocationManager lm;
private String mProviderName;
protected void onPreExecute()
{
lm = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
if (checkPermission()) {
Criteria criteria = new Criteria(); //Using criteria to get the best provider.
mProviderName = lm.getBestProvider(criteria, true);
lm.requestLocationUpdates(mProviderName, 1000, 0, this);
}
progressDialog = new ProgressDialog(MainActivity.this);
progressDialog.setTitle("Please Wait..");
progressDialog.setMessage("Processing...!!");
progressDialog.setCancelable(false);
progressDialog.show();
}
protected Location doInBackground(Void... params)
{
// Try to use the last known position
if (checkPermission()) {
Location location = lm.getLastKnownLocation(mProviderName);
return location;
}
return null;
}
protected void onPostExecute(Location location)
{
if (progressDialog != null && progressDialog.isShowing()) {
progressDialog.dismiss();
}
if (location != null) {
Toast.makeText(getApplicationContext(), "GPS locked! Processing your address!", Toast.LENGTH_SHORT).show();
} else {
new AlertDialog.Builder(MainActivity.this)
.setTitle("Error")
.setMessage("Server Error! Please Try again!!") //This error message is thrown in the real device, not on emulator.
.setPositiveButton("Ok", new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
dialog.cancel();
}
})
.setCancelable(false)
.show();
}
if (checkPermission()) {
lm = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
lm.removeUpdates(this);
if (location != null) {
new GeocodeAsyncTask().execute(location.getLatitude(), location.getLongitude()); //This is another AsyncTask to get the address from the location.
}
}
}
#Override
public void onLocationChanged(Location location) {}
public void onProviderDisabled(String provider) {}
public void onProviderEnabled(String provider) {}
public void onStatusChanged(String provider, int status, Bundle extras) {}
}
private boolean checkPermission() {
int result = ContextCompat.checkSelfPermission(getApplicationContext(), ACCESS_FINE_LOCATION);
return result == PackageManager.PERMISSION_GRANTED;
}
private void requestPermission() {
ActivityCompat.requestPermissions(this, new String[]{ACCESS_FINE_LOCATION}, PERMISSION_REQUEST_CODE);
}
#Override
public void onRequestPermissionsResult(int requestCode, String permissions[], int[] grantResults) {
switch (requestCode) {
case PERMISSION_REQUEST_CODE:
if (grantResults.length > 0) {
boolean locationAccepted = grantResults[0] == PackageManager.PERMISSION_GRANTED;
if (locationAccepted)
checkLocationStatus();
else {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
if (shouldShowRequestPermissionRationale(ACCESS_FINE_LOCATION)) {
showMessageOKCancel("You need to allow access to the Locations!",
new DialogInterface.OnClickListener() {
#Override
public void onClick(DialogInterface dialog, int which) {
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
requestPermissions(new String[]{ACCESS_FINE_LOCATION},
PERMISSION_REQUEST_CODE);
}
}
});
return;
}
}
}
}
break;
}
}
private void checkLocationStatus() {
if (checkPermission()) {
locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
if (locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER)) {
new GetPositionTask().execute();
}
else{
startActivity(new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS));
}
} else {
Toast.makeText(this, "Needs to access GPS. Please give access to it!", Toast.LENGTH_SHORT).show();
requestPermission();
}
}
}
Is there any mistake in it? Any hint would help.
Is there any way that i could get current location without using the last known location?
Edit:
Just a side note: On real device, the GPS symbol is visible for a second and then it goes hidden, then came the error.

How to get user's current location in Android

I want to fetch user's current lat long on click of a button. I know that you can get the last known location using FusedLocationApi. But what I am not able to understand is, gps or location services needs to be turned on for this? If yes, how to check that the user has turned on location and get the current location. Also, how to include marshmallow permission checks in getting the location.
I have already referred:
1) googlesamples/android-play-location
2) googlesamples/android-XYZTouristAttractions
and many other links but unable to make a complete flow.
Code
public class AccessLocationFragment extends BaseFragment implements View.OnClickListener, LocationListener,
GoogleApiClient.ConnectionCallbacks, GoogleApiClient.OnConnectionFailedListener, GeneralDialogFragment.GeneralDialogClickListener {
private static final int MY_PERMISSIONS_REQUEST_LOCATION = 101;
private static final String TAG = AccessLocationFragment.class.getSimpleName();
private static final int REQUEST_CHECK_SETTINGS = 102;
private Button mAccessLocation;
private EditText mZipCode;
private Dialog progressDialog;
private GoogleApiClient mGoogleApiClient;
private Location mLastLocation;
public static AccessLocationFragment newInstance() {
return new AccessLocationFragment();
}
#Nullable
#Override
public View onCreateView(LayoutInflater inflater, #Nullable ViewGroup container, #Nullable Bundle savedInstanceState) {
return inflater.inflate(R.layout.fragment_access_location, container, false);
}
#Override
public void onViewCreated(View view, #Nullable Bundle savedInstanceState) {
super.onViewCreated(view, savedInstanceState);
RecycleApplication.getEventBus().register(this);
mAccessLocation = (Button) view.findViewById(R.id.access_location);
mZipCode = (EditText) view.findViewById(R.id.zip_code);
mAccessLocation.setOnClickListener(this);
mZipCode.setOnEditorActionListener(new TextView.OnEditorActionListener() {
#Override
public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
if (actionId == EditorInfo.IME_ACTION_DONE) {
String zipCode = mZipCode.getText().toString().trim();
if (TextUtils.isEmpty(zipCode)) {
Toast.makeText(mActivity, "Please enter zip code", Toast.LENGTH_SHORT).show();
} else {
Call<Address> response = mRecycleService.getAddress(zipCode);
response.enqueue(new GetLocationCallback(AccessLocationFragment.this));
}
}
return false;
}
});
// Create an instance of GoogleAPIClient.
if (mGoogleApiClient == null) {
mGoogleApiClient = new GoogleApiClient.Builder(mActivity)
.addConnectionCallbacks(this)
.addOnConnectionFailedListener(this)
.addApi(LocationServices.API)
.build();
}
if (!LocationUtils.checkFineLocationPermission(mActivity)) {
// See if user has denied permission in the past
if (shouldShowRequestPermissionRationale(android.Manifest.permission.ACCESS_FINE_LOCATION)) {
// Show a simple snackbar explaining the request instead
showPermissionSnackbar();
} else {
requestFineLocationPermission();
}
} else {
displayLocationSettingsRequest();
}
}
private void startHomeActivity(Address address) {
RecyclePreferences.getInstance().setCity(address.getCity());
RecyclePreferences.getInstance().setState(address.getState());
RecyclePreferences.getInstance().setLatitude(address.getLatitude());
RecyclePreferences.getInstance().setLongitude(address.getLongitude());
RecyclePreferences.getInstance().setZipCode(address.getZipCode());
startActivity(new Intent(mActivity, HomeActivity.class));
mActivity.finish();
}
#Override
public void onSuccess(Call<Address> call, Response<Address> response) {
mActivity.hideProgressDialog(progressDialog);
if (response.isSuccessful()) {
Address address = response.body();
startHomeActivity(address);
}
}
#Override
public void onFailure(Call<Address> call, Throwable t) {
mActivity.hideProgressDialog(progressDialog);
}
#Override
public void onClick(View view) {
if (view.getId() == R.id.access_location) {
fetchAddress(mLastLocation);
}
}
#Override
public void onRequestPermissionsResult(int requestCode, String permissions[], int[] grantResults) {
switch (requestCode) {
case MY_PERMISSIONS_REQUEST_LOCATION: {
if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
displayLocationSettingsRequest();
}
}
}
}
private void fetchAddress(Location location) {
mRecycleService = new RecycleRetrofitBuilder(mActivity).getService();
Call<Address> response = mRecycleService.getAddress(String.valueOf(location.getLatitude()), String.valueOf(location.getLongitude()));
progressDialog = mActivity.showProgressDialog(mActivity);
response.enqueue(new GetLocationCallback(AccessLocationFragment.this));
}
private void requestFineLocationPermission() {
requestPermissions(new String[]{Manifest.permission.ACCESS_FINE_LOCATION}, MY_PERMISSIONS_REQUEST_LOCATION);
}
private void showPermissionSnackbar() {
GeneralDialogFragment generalDialogFragment = GeneralDialogFragment.
newInstance("Permissions", "Allow Recycle the World to use your location.", "Allow", "Go Back", this);
mActivity.showDialogFragment(generalDialogFragment);
displayLocationSettingsRequest();
}
private void displayLocationSettingsRequest() {
LocationRequest locationRequest = LocationRequest.create();
locationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
locationRequest.setInterval(10000);
locationRequest.setFastestInterval(10000 / 2);
LocationSettingsRequest.Builder builder = new LocationSettingsRequest.Builder().addLocationRequest(locationRequest);
builder.setAlwaysShow(true);
PendingResult<LocationSettingsResult> result = LocationServices.SettingsApi.checkLocationSettings(mGoogleApiClient, builder.build());
result.setResultCallback(new ResultCallback<LocationSettingsResult>() {
#Override
public void onResult(LocationSettingsResult result) {
final Status status = result.getStatus();
switch (status.getStatusCode()) {
case LocationSettingsStatusCodes.SUCCESS:
getLocation();
break;
case LocationSettingsStatusCodes.RESOLUTION_REQUIRED:
Log.i(TAG, "Location settings are not satisfied. Show the user a dialog to upgrade location settings ");
try {
status.startResolutionForResult(mActivity, REQUEST_CHECK_SETTINGS);
} catch (IntentSender.SendIntentException e) {
Log.i(TAG, "PendingIntent unable to execute request.");
}
break;
case LocationSettingsStatusCodes.SETTINGS_CHANGE_UNAVAILABLE:
Log.i(TAG, "Location settings are inadequate, and cannot be fixed here. Dialog not created.");
break;
}
}
});
}
private void getLocation() {
if (ActivityCompat.checkSelfPermission(mActivity, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED
&& ActivityCompat.checkSelfPermission(mActivity, Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
return;
}
mLastLocation = LocationServices.FusedLocationApi.getLastLocation(mGoogleApiClient);
}
#Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (requestCode == REQUEST_CHECK_SETTINGS) {
getLocation();
}
}
#Override
public void onStart() {
mGoogleApiClient.connect();
super.onStart();
}
#Override
public void onStop() {
mGoogleApiClient.disconnect();
super.onStop();
}
#Override
public void onConnected(#Nullable Bundle bundle) {
getLocation();
}
#Override
public void onDestroy() {
super.onDestroy();
RecycleApplication.getEventBus().unregister(this);
}
#Override
public void onConnectionSuspended(int i) {
}
#Override
public void onConnectionFailed(#NonNull ConnectionResult connectionResult) {
}
#Override
public void onOk(DialogFragment dialogFragment) {
dialogFragment.dismiss();
requestFineLocationPermission();
}
#Override
public void onCancel(DialogFragment dialogFragment) {
dialogFragment.dismiss();
}
}

Sorry, I haven't go through your code, I am just writing the functions that you have asked for in your question.
First, you need to build a connection to google api client like:
private synchronized void buildGoogleApiClient(){
mGoogleApiClient = new GoogleApiClient.Builder(GTApplication.getContext())
.addConnectionCallbacks(this)
.addOnConnectionFailedListener(this)
.addApi(LocationServices.API)
.build();
mGoogleApiClient.connect();
}
After this in my experience, you almost always get called onConnected() function where you can ask for the location permission after API level 23:
public void checkLocationPermission(){
if(ContextCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED){
// You don't have the permission you need to request it
ActivityCompat.requestPermissions(this, Manifest.permission.ACCESS_FINE_LOCATION), REQ_CODE);
}else{
// You have the permission.
requestLocationAccess();
}
}
If you requested the permission your onRequestPermissionsResult() function will be called with the REQ_CODE. If you need more info to implement the events check the original documentation for runtime permissions it is very useful.
When you have the permission you can check if the location is enabled like:
public void requestLocationAccess(){
LocationRequest mLocationRequest = new LocationRequest();
mLocationRequest.setInterval((long) (LocationHelper.UPDATE_INTERVAL_IN_MILLISECONDS*1.1));
mLocationRequest.setFastestInterval(LocationHelper.UPDATE_INTERVAL_IN_MILLISECONDS);
mLocationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
final LocationSettingsRequest.Builder builder = new LocationSettingsRequest.Builder().addLocationRequest(mLocationRequest);
builder.setAlwaysShow(true); //this is the key ingredient
com.google.android.gms.common.api.PendingResult<LocationSettingsResult> result =
LocationServices.SettingsApi.checkLocationSettings(mGoogleApiClient, builder.build());
result.setResultCallback(new ResultCallback<LocationSettingsResult>(){
#Override
public void onResult(#NonNull LocationSettingsResult result){
if(requester != null){
final Status resultStatus = result.getStatus();
switch(resultStatus.getStatusCode()){
case LocationSettingsStatusCodes.SUCCESS:
// All location settings are satisfied. You can ask for the user's location HERE
break;
case LocationSettingsStatusCodes.RESOLUTION_REQUIRED:
// Location settings are not satisfied. But could be fixed by showing the user a dialog.
try{
resultStatus.startResolutionForResult(this, REQUEST_LOCATION);
break;
}catch(IntentSender.SendIntentException ignored){}
}
}
}
}
});
}
If the enable location dialog needed to be shown to the user you will get a callback in onActivityResult() function with the request code REQUEST_LOCATION)
That's it after you done with all this process you can call locationManager.getLastKnownLocation() or start location request or whatever you want.
PS.: I have cut this code from my bigger class, so please if you find any mistakes feel free to ask. I have specified only the case when everything goes well, because it contains the essence, you can handle the exceptions yourself I hope.

try this code:
public void showMap() {
mapFragment = (SupportMapFragment)getChildFragmentManager().findFragmentById(R.id.map);
if (map == null) {
map = mapFragment.getMap();
}
// Enable Zoom
map.getUiSettings().setZoomGesturesEnabled(true);
//set Map TYPE
map.setMapType(GoogleMap.MAP_TYPE_NORMAL);
//enable Current location Button
map.setMyLocationEnabled(true);
LocationManager locationManager = (LocationManager)getActivity().getSystemService(getActivity().LOCATION_SERVICE);
Criteria criteria = new Criteria();
String bestProvider = locationManager.getBestProvider(criteria, true);
if (ActivityCompat.checkSelfPermission(getContext(), Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(getActivity(), 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 location = locationManager.getLastKnownLocation(bestProvider);
if (location != null) {
onLocationChanged(location);
}
locationManager.requestLocationUpdates(bestProvider, 2000, 0, this);
}
#Override
public void onLocationChanged(Location location) {
latitude= location.getLatitude();
longitude=location.getLongitude();
LatLng loc = new LatLng(latitude, longitude);
if (marker!=null){
marker.remove();
}
marker= map.addMarker(new MarkerOptions().position(loc).title("Sparx IT Solutions"));
map.moveCamera(CameraUpdateFactory.newLatLng(loc));
map.animateCamera(CameraUpdateFactory.newLatLngZoom(loc, 16.0f));
}
#Override
public void onProviderDisabled(String provider) {
Intent intent = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS);
startActivity(intent);
Toast.makeText(getActivity().getBaseContext(), "Gps is turned off!!",
Toast.LENGTH_SHORT).show();
}
#Override
public void onProviderEnabled(String provider) {
Toast.makeText(getActivity().getBaseContext(), "Gps is turned on!! ",
Toast.LENGTH_SHORT).show();
}