app/build.gradle

@@ -26,7 +26,7 @@ dependencies {
     implementation fileTree(dir: 'libs', include: ['*.jar'])
     implementation 'com.android.support:appcompat-v7:27.1.1'
     implementation 'com.android.support:design:27.1.1'
-    implementation 'com.android.support.constraint:constraint-layout:1.1.2'
+    implementation 'com.android.support.constraint:constraint-layout:1.1.3'
     testImplementation 'junit:junit:4.12'
     androidTestImplementation 'com.android.support.test:runner:1.0.2'
     androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.2'
@@ -45,5 +45,6 @@ dependencies {
     implementation "com.squareup.okhttp3:okhttp:3.11.0"
     implementation "com.squareup.okhttp3:okhttp-urlconnection:3.10.0"
     implementation "com.squareup.okhttp3:logging-interceptor:3.11.0"
-    implementation "com.google.android.gms:play-services-location:11.0.4"
+    implementation 'com.auth0.android:jwtdecode:1.1.1'
+
 }

app/src/main/AndroidManifest.xml

@@ -6,6 +6,7 @@
     <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION" />
     <uses-permission android:name="android.permission.ACCESS_FINE_LOCATION" />
 
+
     <application
         android:allowBackup="true"
         android:icon="@mipmap/ic_launcher"
@@ -14,6 +15,8 @@
         android:supportsRtl="true"
         android:theme="@style/AppTheme">
 
+
+
         <activity android:name=".activity.StartupActivity"
             android:label="@string/title_activity_startup"
             android:launchMode="singleInstance">
@@ -38,8 +41,8 @@
         </activity>
 
         <service
-            android:name=".service.GoogleService"
+            android:name=".service.GoogleService"/>
-            android:exported="false" />
+
     </application>
 
 </manifest>

app/src/main/java/com/uam/wmi/findmytutor/activity/LoginActivity.java

@@ -31,6 +31,8 @@ import android.widget.Switch;
 import android.widget.TextView;
 import android.widget.ToggleButton;
 
+import com.auth0.android.jwt.Claim;
+import com.auth0.android.jwt.JWT;
 import com.uam.wmi.findmytutor.R;
 import com.uam.wmi.findmytutor.model.JwtToken;
 import com.uam.wmi.findmytutor.model.LdapUser;
@@ -335,12 +337,14 @@ public class LoginActivity extends AppCompatActivity implements LoaderCallbacks<
             this.ldapService = ApiClient.getClient(getApplicationContext())
                     .create(LdapService.class);
             this.isAuthorizate = false;
+
+            PrefUtils.storeIsTutor(getApplicationContext(), this.isTutor);
         }
 
         @Override
         protected Boolean doInBackground(Void... params) {
             LdapUser user = new LdapUser("string",mPassword,"string",(isTutor)?"tutor":"student","string","string",mEmail);
-            Log.d("LoginRole","Login role is : " + user.getTitle());
+
             disposable.add(
                     ldapService
                             .fakeValidate(user)
@@ -349,7 +353,12 @@ public class LoginActivity extends AppCompatActivity implements LoaderCallbacks<
                             .subscribeWith(new DisposableSingleObserver<JwtToken>() {
                                 @Override
                                 public void onSuccess(JwtToken jwtToken) {
-                                    PrefUtils.storeApiKey(getApplicationContext(), jwtToken.getToken());
+                                    String token = jwtToken.getToken();
+                                    JWT jwt = new JWT(token);
+
+                                    PrefUtils.storeApiKey(getApplicationContext(), token);
+                                    PrefUtils.storeUserId(getApplicationContext(), jwt);
+
                                     onPostExecute(true);
                                 }
 

app/src/main/java/com/uam/wmi/findmytutor/activity/MainActivity.java

@@ -1,6 +1,5 @@
 package com.uam.wmi.findmytutor.activity;
 
-
 import android.content.BroadcastReceiver;
 import android.content.Context;
 import android.content.Intent;
@@ -9,27 +8,20 @@ import android.content.SharedPreferences;
 import android.content.pm.PackageManager;
 import android.location.Address;
 import android.location.Geocoder;
-import android.preference.PreferenceManager;
 import android.support.design.widget.BottomNavigationView;
 import android.support.v4.app.ActivityCompat;
 import android.support.v4.content.ContextCompat;
 import android.support.v7.app.AppCompatActivity;
 import android.os.Bundle;
 
+import android.util.Log;
 import android.view.View;
 import android.widget.FrameLayout;
-import android.widget.TextView;
 import android.widget.Toast;
 
 import com.uam.wmi.findmytutor.service.GoogleService;
-
-import java.io.IOException;
-import java.util.List;
-import java.util.Locale;
-
 import android.support.design.widget.FloatingActionButton;
 
-
 import android.app.Fragment;
 import android.app.FragmentTransaction;
 
@@ -37,12 +29,10 @@ import android.support.annotation.NonNull;
 
 import android.view.MenuItem;
 
-
 import com.mapbox.mapboxsdk.Mapbox;
-import com.mapbox.mapboxsdk.maps.MapView;
 import com.uam.wmi.findmytutor.R;
-import com.uam.wmi.findmytutor.model.Coordinate;
+import com.uam.wmi.findmytutor.service.LocationService;
-
+import com.uam.wmi.findmytutor.utils.PrefUtils;
 
 public class MainActivity extends AppCompatActivity {
 
@@ -52,38 +42,22 @@ public class MainActivity extends AppCompatActivity {
     private MapFragment mapFragment;
     private NotificationFragment notificationFragment;
     private ProfileFragment profileFragment;
-
+    public  static Intent backgroundLocalizationService = null;
 
     private static final int REQUEST_PERMISSIONS = 100;
-    boolean boolean_permission;
+    private boolean boolean_permission = false;
-    TextView tv_latitude, tv_longitude, tv_address, tv_area, tv_locality;
+
-    SharedPreferences mPref;
-    SharedPreferences.Editor medit;
     Double latitude, longitude;
-    Geocoder geocoder;
-
-
-    private MapView mapView;
-
-    public List<Coordinate> getCoordinates() {
-        return this.coordinates;
-    }
-
-    public void setCoordinates(List<Coordinate> coordinates) {
-        this.coordinates = coordinates;
-    }
-
-    public List<Coordinate> coordinates;
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         Mapbox.getInstance(this, getString(R.string.access_token));
         setContentView(R.layout.activity_main);
-        Bundle extras = getIntent().getExtras();
+        fn_permission();
         mMainFrame = (FrameLayout) findViewById(R.id.main_frame);
         mMainNav = (BottomNavigationView) findViewById(R.id.main_nav);
-        isTutor = (boolean) extras.get("is_tutor");
+        isTutor = PrefUtils.getIsTutor(getApplicationContext());
 
         if (!isTutor) {
             mMainNav.findViewById(R.id.nav_profile).setVisibility(View.GONE);
@@ -97,7 +71,6 @@ public class MainActivity extends AppCompatActivity {
         setFragment(mapFragment);
         mMainNav.setSelectedItemId(R.id.nav_map);
 
-        /* code below is resposible for changing colours of tabs in main tab menu */
         mMainNav.setOnNavigationItemSelectedListener(new BottomNavigationView.OnNavigationItemSelectedListener() {
             @Override
             public boolean onNavigationItemSelected(@NonNull MenuItem item) {
@@ -124,6 +97,9 @@ public class MainActivity extends AppCompatActivity {
         button.setOnClickListener(new View.OnClickListener() {
             @Override
             public void onClick(View view) {
+                PrefUtils.storeIsServiceRunning(getApplicationContext(), false);
+
+                stopService(MainActivity.backgroundLocalizationService);
                 SharedPreferences preferences = getSharedPreferences("fmtPrefs", Context.MODE_PRIVATE);
                 SharedPreferences.Editor editor = preferences.edit();
                 editor.clear().commit();
@@ -136,15 +112,9 @@ public class MainActivity extends AppCompatActivity {
             }
         });
 
-        geocoder = new Geocoder(this, Locale.getDefault());
-        mPref = PreferenceManager.getDefaultSharedPreferences(getApplicationContext());
-        medit = mPref.edit();
 
         if (boolean_permission) {
-
+            if (!PrefUtils.getIsServiceRunning(getApplicationContext())) {
-            if (mPref.getString("service", "").matches("")) {
-                medit.putString("service", "service").commit();
-
                 Intent intent = new Intent(getApplicationContext(), GoogleService.class);
                 startService(intent);
 
@@ -153,30 +123,36 @@ public class MainActivity extends AppCompatActivity {
             }
         } else {
             Toast.makeText(getApplicationContext(), "Please enable the gps", Toast.LENGTH_SHORT).show();
+
+        }
+
+        fn_permission();
     }
 
 
+
+        /*backgroundLocalizationService = new Intent(getApplicationContext(), GoogleService.class);
+        startService(backgroundLocalizationService);*/
+
+      /*  if (boolean_permission) {
+            if (!PrefUtils.getIsServiceRunning(getApplicationContext())){
+                backgroundLocalizationService = new Intent(getApplicationContext(), GoogleService.class);
+                startService(backgroundLocalizationService);
+            } else{
+                Toast.makeText(getApplicationContext(), "Service is already running", Toast.LENGTH_SHORT).show();
             }
 
+        } else {
+            fn_permission();
+        }*/
+
+
     private void setFragment(Fragment fragment) {
         FragmentTransaction fragmentTransaction = getFragmentManager().beginTransaction();
         fragmentTransaction.replace(R.id.main_frame, fragment);
         fragmentTransaction.commit();
     }
 
-    @Override
-    protected void onResume() {
-        super.onResume();
-        registerReceiver(broadcastReceiver, new IntentFilter(GoogleService.str_receiver));
-
-    }
-
-    @Override
-    protected void onPause() {
-        super.onPause();
-        unregisterReceiver(broadcastReceiver);
-    }
-
     private void fn_permission() {
         if ((ContextCompat.checkSelfPermission(getApplicationContext(), android.Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED)) {
 
@@ -212,38 +188,17 @@ public class MainActivity extends AppCompatActivity {
         }
     }
 
-    private BroadcastReceiver broadcastReceiver = new BroadcastReceiver() {
+
+
     @Override
-        public void onReceive(Context context, Intent intent) {
+    protected void onResume() {
-
+        super.onResume();
-            latitude = Double.valueOf(intent.getStringExtra("latutide"));
-            longitude = Double.valueOf(intent.getStringExtra("longitude"));
-
-            List<Address> addresses = null;
-
-            try {
-                addresses = geocoder.getFromLocation(latitude, longitude, 1);
-                String cityName = addresses.get(0).getAddressLine(0);
-                String stateName = addresses.get(0).getAddressLine(1);
-                String countryName = addresses.get(0).getAddressLine(2);
-
-                tv_area.setText(addresses.get(0).getAdminArea());
-                tv_locality.setText(stateName);
-                tv_address.setText(countryName);
-
-
-            } catch (IOException e1) {
-                e1.printStackTrace();
     }
 
-
+    @Override
-            tv_latitude.setText(latitude + "");
+    protected void onPause() {
-            tv_longitude.setText(longitude + "");
+        super.onPause();
-            tv_address.getText();
-
-
     }
-    };
 
 
 }

app/src/main/java/com/uam/wmi/findmytutor/activity/StartupActivity.java

@@ -6,6 +6,8 @@ import android.content.Intent;
 import android.support.v7.app.AppCompatActivity;
 import android.os.Bundle;
 
+import com.uam.wmi.findmytutor.service.ApplicationServiceWatcher;
+
 
 public class StartupActivity extends AppCompatActivity {
     private  static  final int AUTHENTICATION_REQUEST_CODE = 666;
@@ -13,6 +15,7 @@ public class StartupActivity extends AppCompatActivity {
     @Override
     protected void onCreate(Bundle savedInstanceState) {
 
+
         if (isLoggedIn()){
             Intent startupIntent = new Intent(this, MainActivity.class);
             startupIntent.setFlags(Intent.FLAG_ACTIVITY_CLEAR_TASK | Intent.FLAG_ACTIVITY_NEW_TASK | Intent.FLAG_ACTIVITY_CLEAR_TOP);
@@ -25,8 +28,6 @@ public class StartupActivity extends AppCompatActivity {
 
         super.onCreate(savedInstanceState);
 
-        //to nie ma miec layoutu wiec elo
-//        setContentView(R.layout.activity_startup);
     }
 
     private boolean isLoggedIn() {

app/src/main/java/com/uam/wmi/findmytutor/service/ApplicationServiceWatcher.java

@@ -0,0 +1,41 @@
+package com.uam.wmi.findmytutor.service;
+
+import android.app.Service;
+import android.content.Intent;
+import android.os.IBinder;
+import android.util.Log;
+
+import com.uam.wmi.findmytutor.activity.MainActivity;
+
+import timber.log.Timber;
+
+public class ApplicationServiceWatcher extends Service {
+
+    @Override
+    public IBinder onBind(Intent intent) {
+        return null;
+    }
+
+    @Override
+    public int onStartCommand(Intent intent, int flags, int startId) {
+        Timber.e("App Started");
+        return START_NOT_STICKY;
+    }
+
+    @Override
+    public void onDestroy() {
+        super.onDestroy();
+;
+        android.os.Process.killProcess(android.os.Process.myPid());
+        Timber.e("App destroyed");
+    }
+
+    @Override
+    public void onTaskRemoved(Intent rootIntent) {
+        Timber.e("App killed");
+        android.os.Process.killProcess(android.os.Process.myPid());
+        //Code here
+        stopSelf();
+    }
+}
+

app/src/main/java/com/uam/wmi/findmytutor/service/GoogleService.java

@@ -13,8 +13,12 @@ import android.os.Handler;
 import android.os.IBinder;
 import android.support.annotation.Nullable;
 import android.support.v4.app.ActivityCompat;
+import android.support.v4.content.LocalBroadcastManager;
 import android.util.Log;
 
+
+import com.uam.wmi.findmytutor.utils.PrefUtils;
+
 import java.util.Timer;
 import java.util.TimerTask;
 
@@ -24,6 +28,7 @@ import java.util.TimerTask;
 
 public class GoogleService extends Service implements LocationListener{
 
+
     boolean isGPSEnable = false;
     boolean isNetworkEnable = false;
     double latitude, longitude;
@@ -36,9 +41,7 @@ public class GoogleService extends Service implements LocationListener {
     Intent intent;
 
 
-    public GoogleService() {
+    public GoogleService() {}
-
-    }
 
     @Nullable
     @Override
@@ -96,8 +99,18 @@ public class GoogleService extends Service implements LocationListener {
                     // for ActivityCompat#requestPermissions for more details.
                     return;
                 }
-                locationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 1000, 0, this);
+                locationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 1000, 0, (LocationListener) this);
                 if (locationManager != null) {
+                    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;
+                    }
                     location = locationManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
                     if (location!=null){
 
@@ -115,14 +128,13 @@ public class GoogleService extends Service implements LocationListener {
 
             if (isGPSEnable){
                 location = null;
-                locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER,1000,0,this);
+                locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER,1000,0, (LocationListener) this);
                 if (locationManager!=null){
                     location = locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);
                     if (location!=null){
-                        Log.e("latitude",location.getLatitude()+"");
-                        Log.e("longitude",location.getLongitude()+"");
                         latitude = location.getLatitude();
                         longitude = location.getLongitude();
+
                         fn_update(location);
                     }
                 }
@@ -132,6 +144,11 @@ public class GoogleService extends Service implements LocationListener {
         }
 
     }
+/*
+    private void sendLocalizationToApi(Double latitude,Double longitude){
+        Log.e("Service google",PrefUtils.getUserId(getApplicationContext()));
+        Log.e("Service google",latitude + " " + longitude);
+    }*/
 
     private class TimerTaskToGetLocation extends TimerTask{
         @Override
@@ -148,11 +165,11 @@ public class GoogleService extends Service implements LocationListener {
     }
 
     private void fn_update(Location location){
-
         intent.putExtra("latutide",location.getLatitude()+"");
         intent.putExtra("longitude",location.getLongitude()+"");
         sendBroadcast(intent);
     }
 
 
+
 }

app/src/main/java/com/uam/wmi/findmytutor/service/LocationService.java

@@ -0,0 +1,173 @@
+package com.uam.wmi.findmytutor.service;
+
+import android.Manifest;
+import android.app.Service;
+import android.content.Context;
+import android.content.Intent;
+import android.content.pm.PackageManager;
+import android.location.Location;
+import android.location.LocationListener;
+import android.location.LocationManager;
+import android.os.Bundle;
+import android.os.IBinder;
+import android.support.v4.app.ActivityCompat;
+import android.util.Log;
+import android.widget.Toast;
+
+public class LocationService extends Service {
+    public static final String BROADCAST_ACTION = "Hello World";
+    private static final int TWO_MINUTES = 1000 * 60 * 2;
+    public LocationManager locationManager;
+    public MyLocationListener listener;
+    public Location previousBestLocation = null;
+
+    Intent intent;
+    int counter = 0;
+
+    @Override
+    public void onCreate() {
+        super.onCreate();
+        intent = new Intent(BROADCAST_ACTION);
+
+        locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
+        listener = new MyLocationListener();
+        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(LocationManager.NETWORK_PROVIDER, 4000, 0, listener);
+        locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 4000, 0, listener);
+    }
+
+
+    @Override
+    public IBinder onBind(Intent intent)
+    {
+        return null;
+    }
+
+    protected boolean isBetterLocation(Location location, Location currentBestLocation) {
+        if (currentBestLocation == null) {
+            // A new location is always better than no location
+            return true;
+        }
+
+        // Check whether the new location fix is newer or older
+        long timeDelta = location.getTime() - currentBestLocation.getTime();
+        boolean isSignificantlyNewer = timeDelta > TWO_MINUTES;
+        boolean isSignificantlyOlder = timeDelta < -TWO_MINUTES;
+        boolean isNewer = timeDelta > 0;
+
+        // If it's been more than two minutes since the current location, use the new location
+        // because the user has likely moved
+        if (isSignificantlyNewer) {
+            return true;
+            // If the new location is more than two minutes older, it must be worse
+        } else if (isSignificantlyOlder) {
+            return false;
+        }
+
+        // Check whether the new location fix is more or less accurate
+        int accuracyDelta = (int) (location.getAccuracy() - currentBestLocation.getAccuracy());
+        boolean isLessAccurate = accuracyDelta > 0;
+        boolean isMoreAccurate = accuracyDelta < 0;
+        boolean isSignificantlyLessAccurate = accuracyDelta > 200;
+
+        // Check if the old and new location are from the same provider
+        boolean isFromSameProvider = isSameProvider(location.getProvider(),
+                currentBestLocation.getProvider());
+
+        // Determine location quality using a combination of timeliness and accuracy
+        if (isMoreAccurate) {
+            return true;
+        } else if (isNewer && !isLessAccurate) {
+            return true;
+        } else if (isNewer && !isSignificantlyLessAccurate && isFromSameProvider) {
+            return true;
+        }
+        return false;
+    }
+
+
+
+    /** Checks whether two providers are the same */
+    private boolean isSameProvider(String provider1, String provider2) {
+        if (provider1 == null) {
+            return provider2 == null;
+        }
+        return provider1.equals(provider2);
+    }
+
+
+
+    @Override
+    public void onDestroy() {
+        // handler.removeCallbacks(sendUpdatesToUI);
+        super.onDestroy();
+        Log.v("STOP_SERVICE", "DONE");
+        locationManager.removeUpdates((LocationListener) listener);
+    }
+
+    public static Thread performOnBackgroundThread(final Runnable runnable) {
+        final Thread t = new Thread() {
+            @Override
+            public void run() {
+                try {
+                    runnable.run();
+                } finally {
+
+                }
+            }
+        };
+        t.start();
+        return t;
+    }
+
+
+
+
+    public class MyLocationListener implements LocationListener
+    {
+
+        public void onLocationChanged(final Location loc)
+        {
+            Log.i("*******", "Location changed");
+            if(isBetterLocation(loc, previousBestLocation)) {
+                loc.getLatitude();
+                loc.getLongitude();
+
+                Log.e("service", String.valueOf(loc));
+                intent.putExtra("Latitude", loc.getLatitude());
+                intent.putExtra("Longitude", loc.getLongitude());
+                intent.putExtra("Provider", loc.getProvider());
+                sendBroadcast(intent);
+
+            }
+        }
+
+
+        public void onProviderDisabled(String provider)
+        {
+            Toast.makeText( getApplicationContext(), "Gps Disabled", Toast.LENGTH_SHORT ).show();
+        }
+
+
+        public void onProviderEnabled(String provider)
+        {
+            Toast.makeText( getApplicationContext(), "Gps Enabled", Toast.LENGTH_SHORT).show();
+        }
+
+
+        public void onStatusChanged(String provider, int status, Bundle extras)
+        {
+
+        }
+
+    }
+}

app/src/main/java/com/uam/wmi/findmytutor/service/LocationUpdatesBroadcastReceiver.java

@@ -1,69 +0,0 @@
-package com.uam.wmi.findmytutor.service;
-
-/*
- * Copyright (C) 2017 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *      http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-import android.content.BroadcastReceiver;
-import android.content.Context;
-import android.content.Intent;
-import android.location.Location;
-import android.util.Log;
-
-import com.google.android.gms.location.LocationResult;
-
-import java.util.List;
-
-/**
- * Receiver for handling location updates.
- *
- * For apps targeting API level O
- * {@link android.app.PendingIntent#getBroadcast(Context, int, Intent, int)} should be used when
- * requesting location updates. Due to limits on background services,
- * {@link android.app.PendingIntent#getService(Context, int, Intent, int)} should not be used.
- *
- *  Note: Apps running on "O" devices (regardless of targetSdkVersion) may receive updates
- *  less frequently than the interval specified in the
- *  {@link com.google.android.gms.location.LocationRequest} when the app is no longer in the
- *  foreground.
- */
-public class LocationUpdatesBroadcastReceiver extends BroadcastReceiver {
-    private static final String TAG = "LUBroadcastReceiver";
-
-    public static final String ACTION_PROCESS_UPDATES =
-            "com.google.android.gms.location.sample.backgroundlocationupdates.action" +
-                    ".PROCESS_UPDATES";
-
-    @Override
-    public void onReceive(Context context, Intent intent) {
-        if (intent != null) {
-            final String action = intent.getAction();
-            if (ACTION_PROCESS_UPDATES.equals(action)) {
-                LocationResult result = LocationResult.extractResult(intent);
-                if (result != null) {
-                    List<Location> locations = result.getLocations();
-                    LocationResultHelper locationResultHelper = new LocationResultHelper(
-                            context, locations);
-                    // Save the location data to SharedPreferences.
-                    locationResultHelper.saveResults();
-                    // Show notification with the location data.
-                    locationResultHelper.showNotification();
-                    Log.i(TAG, LocationResultHelper.getSavedLocationResult(context));
-                }
-            }
-        }
-    }
-}
-

app/src/main/java/com/uam/wmi/findmytutor/service/LocationUpdatesIntentService.java

@@ -1,74 +0,0 @@
-package com.uam.wmi.findmytutor.service;/*
- * Copyright 2017 Google Inc. All Rights Reserved.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-
-import android.app.IntentService;
-import android.content.Context;
-import android.content.Intent;
-import android.location.Location;
-import android.util.Log;
-
-import com.google.android.gms.location.LocationResult;
-
-import java.util.List;
-
-/**
- * Handles incoming location updates and displays a notification with the location data.
- *
- * For apps targeting API level 25 ("Nougat") or lower, location updates may be requested
- * using {@link android.app.PendingIntent#getService(Context, int, Intent, int)} or
- * {@link android.app.PendingIntent#getBroadcast(Context, int, Intent, int)}. For apps targeting
- * API level O, only {@code getBroadcast} should be used.
- *
- *  Note: Apps running on "O" devices (regardless of targetSdkVersion) may receive updates
- *  less frequently than the interval specified in the
- *  {@link com.google.android.gms.location.LocationRequest} when the app is no longer in the
- *  foreground.
- */
-public class LocationUpdatesIntentService extends IntentService {
-
-    static final String ACTION_PROCESS_UPDATES =
-            "com.google.android.gms.location.sample.backgroundlocationupdates.action" +
-                    ".PROCESS_UPDATES";
-    private static final String TAG = LocationUpdatesIntentService.class.getSimpleName();
-
-
-    public LocationUpdatesIntentService() {
-        // Name the worker thread.
-        super(TAG);
-    }
-
-    @Override
-    protected void onHandleIntent(Intent intent) {
-        if (intent != null) {
-            final String action = intent.getAction();
-            if (ACTION_PROCESS_UPDATES.equals(action)) {
-                LocationResult result = LocationResult.extractResult(intent);
-                if (result != null) {
-                    List<Location> locations = result.getLocations();
-                    LocationResultHelper locationResultHelper = new LocationResultHelper(this,
-                            locations);
-                    // Save the location data to SharedPreferences.
-                    locationResultHelper.saveResults();
-                    // Show notification with the location data.
-                    locationResultHelper.showNotification();
-                    Log.i(TAG, LocationResultHelper.getSavedLocationResult(this));
-                }
-            }
-        }
-    }
-}
-

app/src/main/java/com/uam/wmi/findmytutor/utils/PrefUtils.java

@@ -2,6 +2,10 @@ package com.uam.wmi.findmytutor.utils;
 
 import android.content.Context;
 import android.content.SharedPreferences;
+import android.util.Log;
+
+import com.auth0.android.jwt.Claim;
+import com.auth0.android.jwt.JWT;
 
 public class PrefUtils {
     /**
@@ -24,4 +28,35 @@ public class PrefUtils {
     public static String getApiKey(Context context) {
         return getSharedPreferences(context).getString("API_KEY", null);
     }
+
+    public static void storeUserId(Context applicationContext, JWT jwtToken) {
+        SharedPreferences.Editor editor = getSharedPreferences(applicationContext).edit();
+        Claim role = jwtToken.getClaim("userid");
+        editor.putString("USER_ID", role.asString());
+        editor.commit();
+    }
+
+    public static String getUserId(Context context) {
+        return getSharedPreferences(context).getString("USER_ID", null);
+    }
+
+    public static void storeIsTutor(Context applicationContext, boolean isTutor) {
+        SharedPreferences.Editor editor = getSharedPreferences(applicationContext).edit();
+        editor.putBoolean("IS_TUTOR", isTutor);
+        editor.commit();
+    }
+
+    public static boolean getIsTutor(Context context) {
+        return getSharedPreferences(context).getBoolean("IS_TUTOR", false);
+    }
+
+    public static void storeIsServiceRunning(Context applicationContext, boolean isRunning) {
+        SharedPreferences.Editor editor = getSharedPreferences(applicationContext).edit();
+        editor.putBoolean("IS_BACKGROUND_SERVICE_RUNNING", isRunning);
+        editor.commit();
+    }
+
+    public static boolean getIsServiceRunning(Context context) {
+        return getSharedPreferences(context).getBoolean("IS_BACKGROUND_SERVICE_RUNNING", false);
+    }
 }