Provider status enabling & disabling.

app/src/main/java/pl/tpolgrabia/urbanexplorer/callbacks/ProviderStatusCallback.java

@@ -0,0 +1,8 @@
+package pl.tpolgrabia.urbanexplorer.callbacks;
+
+/**
+ * Created by Tomasz Półgrabia <tomasz.polgrabia@unicredit.eu> (c310702) on 19.09.2016.
+ */
+public interface ProviderStatusCallback {
+    void callback(String provider, boolean enabled);
+}

app/src/main/java/pl/tpolgrabia/urbanexplorer/callbacks/StandardLocationListener.java

@@ -15,6 +15,8 @@ import java.util.List;
 public class StandardLocationListener implements LocationListener {
     private static final Logger lg = LoggerFactory.getLogger(StandardLocationListener.class);
     private List<StandardLocationListenerCallback> locationChangedCallbacks = new ArrayList<>();
+    private List<ProviderStatusCallback>
+            providerStatusCallbacks = new ArrayList<>();
 
     @Override
     public void onLocationChanged(Location location) {
@@ -32,18 +34,38 @@ public class StandardLocationListener implements LocationListener {
     @Override
     public void onProviderEnabled(String provider) {
         lg.info("Provider {} enabled", provider);
+
+        for (ProviderStatusCallback callback : providerStatusCallbacks){
+            callback.callback(provider, true);
+        }
     }
 
     @Override
     public void onProviderDisabled(String provider) {
         lg.info("Provider {} disabled", provider);
+
+        for (ProviderStatusCallback callback : providerStatusCallbacks){
+            callback.callback(provider, false);
+        }
     }
 
     public void addCallback(StandardLocationListenerCallback callback) {
+        lg.trace("Location added callback");
         locationChangedCallbacks.add(callback);
     }
 
     public boolean removeCallback(StandardLocationListenerCallback callback) {
+        lg.trace("Location removed callback");
         return locationChangedCallbacks.remove(callback);
     }
+
+    public void addProviderCallback(ProviderStatusCallback callback) {
+        lg.trace("Provider added callback");
+        providerStatusCallbacks.add(callback);
+    }
+
+    public void removeProviderCallback(ProviderStatusCallback callback) {
+        lg.trace("Provider removed calback");
+        providerStatusCallbacks.remove(callback);
+    }
 }

app/src/main/java/pl/tpolgrabia/urbanexplorer/fragments/HomeFragment.java

@@ -22,10 +22,10 @@ import pl.tpolgrabia.urbanexplorer.MainActivity;
 import pl.tpolgrabia.urbanexplorer.R;
 import pl.tpolgrabia.urbanexplorer.callbacks.PanoramioResponseCallback;
 import pl.tpolgrabia.urbanexplorer.callbacks.PanoramioResponseStatus;
+import pl.tpolgrabia.urbanexplorer.callbacks.ProviderStatusCallback;
 import pl.tpolgrabia.urbanexplorer.callbacks.StandardLocationListenerCallback;
 import pl.tpolgrabia.urbanexplorer.dto.panoramio.PanoramioCacheDto;
 import pl.tpolgrabia.urbanexplorer.dto.panoramio.PanoramioImageInfo;
-import pl.tpolgrabia.urbanexplorer.utils.LocationUtils;
 import pl.tpolgrabia.urbanexplorer.utils.NetUtils;
 import pl.tpolgrabia.urbanexplorer.utils.PanoramioUtils;
 
@@ -101,6 +101,16 @@ public class HomeFragment extends Fragment  {
                     }
                 }
             });
+        mainActivity.getLocationCallback()
+                .addProviderCallback(new ProviderStatusCallback() {
+                    @Override
+                    public void callback(String provider, boolean enabled) {
+                        if (enabled) {
+                            lg.trace("Handling provider enabling - refreshing panoramio listing");
+                            fetchPanoramioPhotos();
+                        }
+                    }
+                });
     }
 
     @Override
@@ -328,7 +338,6 @@ public class HomeFragment extends Fragment  {
 
         MainActivity mainActivity = (MainActivity) getActivity();
 
-        LocationManager locationService = (LocationManager) getActivity().getSystemService(Context.LOCATION_SERVICE);
         final Location location = NetUtils.getLastKnownLocation(activity);
         if (location == null) {
             lg.info("Location is still not available");

app/src/main/java/pl/tpolgrabia/urbanexplorer/fragments/WikiLocationsFragment.java

@@ -22,6 +22,7 @@ import pl.tpolgrabia.urbanexplorer.MainActivity;
 import pl.tpolgrabia.urbanexplorer.R;
 import pl.tpolgrabia.urbanexplorer.adapters.WikiLocationsAdapter;
 import pl.tpolgrabia.urbanexplorer.callbacks.FetchWikiLocationsCallback;
+import pl.tpolgrabia.urbanexplorer.callbacks.ProviderStatusCallback;
 import pl.tpolgrabia.urbanexplorer.callbacks.StandardLocationListenerCallback;
 import pl.tpolgrabia.urbanexplorer.callbacks.WikiStatus;
 import pl.tpolgrabia.urbanexplorer.dto.wiki.WikiCacheDto;
@@ -107,6 +108,16 @@ public class WikiLocationsFragment extends Fragment {
             }
         });
 
+        mainActivity.getLocationCallback().addProviderCallback(new ProviderStatusCallback() {
+            @Override
+            public void callback(String provider, boolean enabled) {
+                if (enabled) {
+                    lg.trace("Handling provider enabling - refreshing wiki listing");
+                    fetchWikiLocations();
+                }
+            }
+        });
+
         ListView locations = (ListView) inflatedView.findViewById(R.id.wiki_places);
         locations.setOnItemLongClickListener(new FetchWikiLocationsCallback(WikiLocationsFragment.this, appObjects));
         locations.setAdapter(new WikiLocationsAdapter(getActivity(), appObjects));