Merge pull request #579 from misaochan/check-gps-2

Check for GPS when Nearby is loaded

app/src/main/java/fr/free/nrw/commons/nearby/NearbyActivity.java

@@ -1,10 +1,14 @@
 package fr.free.nrw.commons.nearby;
 
+import android.content.DialogInterface;
+import android.content.Intent;
+import android.location.LocationManager;
 import android.net.Uri;
 import android.os.AsyncTask;
 import android.os.Bundle;
 import android.support.v4.app.Fragment;
 import android.support.v4.app.FragmentTransaction;
+import android.support.v7.app.AlertDialog;
 import android.view.Menu;
 import android.view.MenuInflater;
 import android.view.MenuItem;
@@ -23,6 +27,7 @@ import fr.free.nrw.commons.theme.BaseActivity;
 import fr.free.nrw.commons.utils.UriSerializer;
 
 import fr.free.nrw.commons.R;
+import timber.log.Timber;
 
 import java.util.List;
 
@@ -47,6 +52,7 @@ public class NearbyActivity extends BaseActivity {
         if (getSupportActionBar() != null) {
             getSupportActionBar().setDisplayHomeAsUpEnabled(true);
         }
+        checkGps();
         bundle = new Bundle();
         locationManager = new LocationServiceManager(this);
         locationManager.registerLocationManager();
@@ -83,6 +89,44 @@ public class NearbyActivity extends BaseActivity {
         }
     }
 
+    protected void checkGps() {
+        LocationManager manager = (LocationManager) getSystemService(LOCATION_SERVICE);
+        if (!manager.isProviderEnabled(LocationManager.GPS_PROVIDER)) {
+            Timber.d("GPS is not enabled");
+            AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(this);
+            alertDialogBuilder.setMessage(R.string.gps_disabled)
+                    .setCancelable(false)
+                    .setPositiveButton(R.string.enable_gps,
+                            new DialogInterface.OnClickListener() {
+                                public void onClick(DialogInterface dialog, int id) {
+                                    Intent callGPSSettingIntent = new Intent(
+                                            android.provider.Settings.ACTION_LOCATION_SOURCE_SETTINGS);
+                                    Timber.d("Loaded settings page");
+                                    startActivityForResult(callGPSSettingIntent, 1);
+                                }
+                            });
+            alertDialogBuilder.setNegativeButton("Cancel",
+                    new DialogInterface.OnClickListener() {
+                        public void onClick(DialogInterface dialog, int id) {
+                            dialog.cancel();
+                        }
+                    });
+            AlertDialog alert = alertDialogBuilder.create();
+            alert.show();
+        } else {
+            Timber.d("GPS is enabled");
+        }
+    }
+
+    @Override
+    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
+        super.onActivityResult(requestCode, resultCode, data);
+        if (requestCode == 1) {
+            Timber.d("User is back from Settings page");
+            refreshView();
+        }
+    }
+
     private void showMapView() {
         if (!isMapViewActive) {
             isMapViewActive = true;

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

@@ -51,6 +51,8 @@
   <string name="categories_search_text_hint">Search categories</string>
   <string name="menu_save_categories">Save</string>
   <string name="refresh_button">Refresh</string>
+  <string name="gps_disabled">GPS is disabled in your device. Would you like to enable it?</string>
+  <string name="enable_gps">Enable GPS</string>
   <string name="contributions_subtitle_zero">No uploads yet</string>
   <plurals name="contributions_subtitle">
     <!--zero is not used in english. Category mentioned here for easy reference in future-->