Merge pull request #49 from pulkit4tech/bug

#48 : Prompt user to turn on GPS for better results

Author: pulkit4tech

app/src/main/java/com/pulkit4tech/privy/MainActivity.java

@@ -45,7 +45,7 @@
 import com.pulkit4tech.privy.data.json.PostPrivyRequest;
 import com.pulkit4tech.privy.fragments.PrivyMapsFragment;
 import com.pulkit4tech.privy.utilities.NetworkRequest;
-import com.pulkit4tech.privy.utilities.NoLocationPermission;
+import com.pulkit4tech.privy.fragments.NoLocationPermission;
 
 import java.util.ArrayList;
 

app/src/main/java/com/pulkit4tech/privy/utilities/NoLocationPermission.java renamed to app/src/main/java/com/pulkit4tech/privy/fragments/NoLocationPermission.java

@@ -1,11 +1,12 @@
-package com.pulkit4tech.privy.utilities;
+package com.pulkit4tech.privy.fragments;
 
 import android.os.Bundle;
 import android.support.annotation.Nullable;
 import android.support.v4.app.Fragment;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.ViewGroup;
+import android.widget.TextView;
 
 import com.pulkit4tech.privy.R;
 
@@ -14,6 +15,9 @@ public class NoLocationPermission extends Fragment {
     @Nullable
     @Override
     public View onCreateView(LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {
-        return inflater.inflate(R.layout.error_msg_layout, container, false);
+        View view = inflater.inflate(R.layout.error_msg_layout, container, false);
+        TextView errorMsg = (TextView) view.findViewById(R.id.error_msg);
+        errorMsg.setText(getString(R.string.location_permission_failed));
+        return view;
     }
 }

app/src/main/java/com/pulkit4tech/privy/fragments/PrivyMapsFragment.java

@@ -40,6 +40,7 @@ public class PrivyMapsFragment extends Fragment implements OnMapReadyCallback {
     private Context mContext;
     private CameraPosition MY_LOCATION_CAMERA_POS;
     private HashMap<String, MarkerData> universalMarkers;
+    private LocationServices locationService;
 
     // My location
     private LocationData myLocationData;
@@ -119,7 +120,9 @@ public boolean onMyLocationButtonClick() {
     }
 
     private void getMyCurrentLocation() {
-        LocationServices locationService = new LocationServices(mContext);
+        if(locationService == null)
+            locationService = new LocationServices(mContext);
+
         myLocationData = locationService.getCurrentLocation();
         if (myLocationData != null) {
 

app/src/main/java/com/pulkit4tech/privy/utilities/LocationServices.java

@@ -1,18 +1,23 @@
 package com.pulkit4tech.privy.utilities;
 
 import android.Manifest;
+import android.app.Activity;
 import android.content.Context;
+import android.content.Intent;
 import android.content.pm.PackageManager;
 import android.location.Criteria;
 import android.location.Location;
 import android.location.LocationManager;
 import android.location.LocationListener;
 import android.os.Bundle;
+import android.provider.Settings;
+import android.support.design.widget.Snackbar;
 import android.support.v4.app.ActivityCompat;
-import android.widget.Toast;
+import android.view.View;
 
 import com.google.android.gms.maps.model.LatLng;
 
+import com.pulkit4tech.privy.R;
 import com.pulkit4tech.privy.data.LocationData;
 
 import static android.content.Context.LOCATION_SERVICE;
@@ -28,12 +33,10 @@ public LocationServices(Context context) {
 
     public LocationData getCurrentLocation() {
         LocationManager locationManager = (LocationManager) mContext.getSystemService(LOCATION_SERVICE);
-        Criteria criteria = new Criteria();
-        criteria.setAccuracy(Criteria.ACCURACY_COARSE);
-        criteria.setAltitudeRequired(false);
-        criteria.setBearingRequired(false);
-        criteria.setCostAllowed(true);
-        criteria.setPowerRequirement(Criteria.POWER_MEDIUM);
+        if(!checkGPSon(locationManager)){
+            promptToEnableGPS();
+        }
+        Criteria criteria = setCriteria();
         String bestProvider = locationManager.getBestProvider(criteria, true);
         if (ActivityCompat.checkSelfPermission(mContext, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
             //    ActivityCompat#requestPermissions
@@ -52,6 +55,20 @@ public LocationData getCurrentLocation() {
         return myLocation;
     }
 
+    private void promptToEnableGPS() {
+        snackMsgWithAction(mContext.getString(R.string.enable_gps_msg));
+    }
+
+    private Criteria setCriteria() {
+        Criteria criteria = new Criteria();
+        criteria.setAccuracy(Criteria.ACCURACY_FINE);
+        criteria.setAltitudeRequired(false);
+        criteria.setBearingRequired(false);
+        criteria.setCostAllowed(true);
+        criteria.setPowerRequirement(Criteria.POWER_MEDIUM);
+        return criteria;
+    }
+
 
     @Override
     public void onLocationChanged(Location location) {
@@ -70,11 +87,32 @@ public void onStatusChanged(String s, int i, Bundle bundle) {
 
     @Override
     public void onProviderEnabled(String s) {
-
+        snackMsg(mContext.getString(R.string.gps_enable_request_success));
     }
 
     @Override
     public void onProviderDisabled(String s) {
-        Toast.makeText(mContext, "Provider Disabled", Toast.LENGTH_SHORT).show();
+        promptToEnableGPS();
+    }
+
+    private boolean checkGPSon(LocationManager manager){
+       return manager.isProviderEnabled(LocationManager.GPS_PROVIDER);
+    }
+
+    private void snackMsg(String msg) {
+        Snackbar.make(((Activity) mContext).findViewById(R.id.coordinator_layout), msg, Snackbar.LENGTH_LONG).show();
+    }
+    
+    private void snackMsgWithAction(String msg){
+        Snackbar snackbar = Snackbar.make(((Activity) mContext).findViewById(R.id.coordinator_layout),msg,Snackbar.LENGTH_LONG);
+        snackbar.setAction(R.string.turn_on, new View.OnClickListener() {
+            @Override
+            public void onClick(View view) {
+                // start intent to turn on GPS
+                Intent onGPS = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS);
+                mContext.startActivity(onGPS);
+            }
+        });
+        snackbar.show();
     }
 }

app/src/main/res/values/strings.xml

@@ -33,4 +33,7 @@
     <string name="app_feedback_mail">[email protected]</string>
     <string name="feedback_subject">Feedback</string>
     <string name="send_feedback_msg">Send Feedback:</string>
+    <string name="enable_gps_msg">Please enable GPS for better results.</string>
+    <string name="gps_enable_request_success">Thank you for enabling gps.</string>
+    <string name="turn_on">TURN ON</string>
 </resources>