Adding refresh UI

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

@@ -9,6 +9,9 @@ import android.os.Bundle;
 import android.support.v4.app.FragmentTransaction;
 import android.support.v7.app.AppCompatActivity;
 import android.util.Log;
+import android.view.Menu;
+import android.view.MenuInflater;
+import android.view.MenuItem;
 
 import fr.free.nrw.commons.R;
 
@@ -40,12 +43,33 @@ public class NearbyActivity extends AppCompatActivity {
         ft.add(R.id.container, fragment);
         ft.commit();
     }
-
+    @Override
+    public boolean onCreateOptionsMenu (Menu menu) {
+        MenuInflater inflater = getMenuInflater();
+        inflater.inflate(R.menu.menu_nearby, menu);
+        return super.onCreateOptionsMenu(menu);
+    }
+    @Override
+    public boolean onOptionsItemSelected(MenuItem item) {
+        // Handle item selection
+        switch (item.getItemId()) {
+            case R.id.action_refresh:
+                refreshView();
+                return true;
+            default:
+                return super.onOptionsItemSelected(item);
+        }
+    }
     @Override
     protected void onResume(){
         super.onResume();
     }
 
+    protected void refreshView()
+    {
+        this.finish();
+        startActivity(getIntent());
+    }
     protected LatLng getmLatestLocation() {
         return mLatestLocation;
     }

app/src/main/res/menu/menu_nearby.xml

@@ -0,0 +1,13 @@
+<menu xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"      tools:context=".MainActivity">
+
+    <item
+        android:id="@+id/action_refresh"
+        android:title="@string/refresh_button"
+        android:icon="@drawable/ic_action_refresh"
+        android:orderInCategory="1"
+        app:showAsAction="ifRoom"
+        />
+
+</menu>

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

@@ -49,6 +49,7 @@
   <string name="menu_upload_single">Upload</string>
   <string name="categories_search_text_hint">Search categories</string>
   <string name="menu_save_categories">Save</string>
+  <string name="refresh_button">Refresh</string>
   <plurals name="contributions_subtitle">
     <item quantity="zero">No uploads yet</item>
     <item quantity="one">1 upload</item>