Feature/kak/add geofencing#44

app/build.gradle

@@ -55,6 +55,8 @@ dependencies {
     def playServicesVersion = '15.0.1'
     implementation "com.google.android.gms:play-services-location:$playServicesVersion"
     implementation "com.google.android.gms:play-services-maps:$playServicesVersion"
+    // Android WorkManager
+    implementation "android.arch.work:work-runtime:1.0.0-alpha02"
     // Carousel
     implementation 'com.github.flibbertigibbet:carouselview:1.0.5'
     // Badges

app/src/main/AndroidManifest.xml

@@ -10,6 +10,9 @@
     -->
     <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
 
+    <!-- Listen for reboot to set up geofences again -->
+    <uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED" />
+
     <application
         android:name=".GoPhillyGoApp"
         android:allowBackup="true"
@@ -93,6 +96,23 @@
         <meta-data
             android:name="com.google.android.geo.API_KEY"
             android:value="@string/google_maps_key" />
+
+        <!-- Set up geofences again after reboot or location provider changes -->
+        <receiver android:name=".tasks.AddGeofencesBroadcastReceiver">
+            <intent-filter>
+                <action android:name="android.intent.action.BOOT_COMPLETED" />
+                <!-- FIXME: implicit system broadcast intent cannot start background thread
+                <action android:name="android.location.PROVIDERS_CHANGED" /> -->
+            </intent-filter>
+        </receiver>
+
+        <!-- Listen to geofence transitions. -->
+        <receiver android:name=".tasks.GeofenceTransitionBroadcastReceiver"
+            android:exported="false" android:enabled="true">
+            <intent-filter>
+                <action android:name="com.gophillygo.app.tasks.ACTION_GEOFENCE_TRANSITION" />
+            </intent-filter>
+        </receiver>
     </application>
 
 </manifest>

app/src/main/java/com/gophillygo/app/GoPhillyGoApp.java

@@ -2,29 +2,36 @@
 
 import android.app.Activity;
 import android.app.Application;
+import android.content.BroadcastReceiver;
 import android.util.Log;
 
 import com.gophillygo.app.di.AppInjector;
 
 import javax.inject.Inject;
 
+import dagger.android.AndroidInjector;
 import dagger.android.DispatchingAndroidInjector;
 import dagger.android.HasActivityInjector;
+import dagger.android.HasBroadcastReceiverInjector;
 
 /**
  * Based on:
  * https://github.com/googlesamples/android-architecture-components/blob/178fe541643adb122d2a8925cf61a21950a4611c/GithubBrowserSample/app/src/main/java/com/android/example/github/GithubApp.java
  */
 
 
-public class GoPhillyGoApp extends Application implements HasActivityInjector {
+public class GoPhillyGoApp extends Application implements HasActivityInjector, HasBroadcastReceiverInjector {
 
     private static final String LOG_LABEL = "GPGApp";
 
     @SuppressWarnings("WeakerAccess")
     @Inject
     DispatchingAndroidInjector<Activity> dispatchingAndroidInjector;
 
+    @SuppressWarnings("WeakerAccess")
+    @Inject
+    DispatchingAndroidInjector<BroadcastReceiver> broadcastReceiverInjector;
+
     @Override
     public void onCreate() {
         super.onCreate();
@@ -38,4 +45,9 @@ public void onCreate() {
     public DispatchingAndroidInjector<Activity> activityInjector() {
         return dispatchingAndroidInjector;
     }
+
+    @Override
+    public AndroidInjector<BroadcastReceiver> broadcastReceiverInjector() {
+        return broadcastReceiverInjector;
+    }
 }

app/src/main/java/com/gophillygo/app/activities/AttractionDetailActivity.java

@@ -1,6 +1,5 @@
 package com.gophillygo.app.activities;
 
-import android.arch.persistence.room.util.StringUtil;
 import android.content.Intent;
 import android.graphics.drawable.Drawable;
 import android.net.Uri;
@@ -19,19 +18,41 @@
 import com.gophillygo.app.data.models.AttractionInfo;
 import com.gophillygo.app.data.models.DestinationInfo;
 import com.gophillygo.app.data.models.DestinationLocation;
+import com.gophillygo.app.data.models.EventInfo;
+import com.gophillygo.app.tasks.AddGeofencesBroadcastReceiver;
+import com.gophillygo.app.tasks.RemoveGeofenceWorker;
 import com.synnapps.carouselview.CarouselView;
 
 abstract class AttractionDetailActivity extends AppCompatActivity {
     protected static final int COLLAPSED_LINE_COUNT = 4;
     protected static final int EXPANDED_MAX_LINES = 50;
     private static final String LOG_LABEL = "AttractionDetail";
-    protected DestinationInfo destinationInfo;
 
+    protected DestinationInfo destinationInfo;
     protected View.OnClickListener toggleClickListener;
 
     protected abstract Class getMapActivity();
     protected abstract int getAttractionId();
 
+    protected void addOrRemoveGeofence(AttractionInfo info, Boolean haveExistingGeofence, Boolean settingGeofence) {
+        if (settingGeofence) {
+            if (haveExistingGeofence) {
+                Log.d(LOG_LABEL, "No change to geofence");
+                return;
+            }
+            // add geofence
+            Log.d(LOG_LABEL, "Add attraction geofence");
+            if (info instanceof EventInfo) {
+                AddGeofencesBroadcastReceiver.addOneGeofence((EventInfo)info);
+            } else if (info instanceof DestinationInfo) {
+                AddGeofencesBroadcastReceiver.addOneGeofence(((DestinationInfo) info).getDestination());
+            }
+        } else if (haveExistingGeofence) {
+            Log.e(LOG_LABEL, "Removing attraction geofence");
+            RemoveGeofenceWorker.removeOneGeofence(info);
+        }
+    }
+
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
@@ -74,7 +95,6 @@ public void goToMap(View view) {
     public void goToDirections(View view) {
         // pass parameters destination and destinationText to https://gophillygo.org/
         Uri directionsUri = new Uri.Builder().scheme("https").authority("gophillygo.org")
-                // TODO: #9 send current user location as origin
                 .appendQueryParameter("origin", "")
                 .appendQueryParameter("originText", "")
                 .appendQueryParameter("destination", destinationInfo.getDestination().getLocation().toString())

app/src/main/java/com/gophillygo/app/activities/BaseAttractionActivity.java

@@ -1,6 +1,7 @@
 package com.gophillygo.app.activities;
 
 import android.arch.lifecycle.ViewModelProviders;
+import android.content.Intent;
 import android.content.pm.PackageManager;
 import android.location.Location;
 import android.os.Bundle;
@@ -10,11 +11,16 @@
 import android.util.Log;
 
 import com.gophillygo.app.data.DestinationViewModel;
+import com.gophillygo.app.data.models.AttractionInfo;
 import com.gophillygo.app.data.models.Destination;
 import com.gophillygo.app.data.models.DestinationInfo;
 import com.gophillygo.app.data.models.DestinationLocation;
+import com.gophillygo.app.data.models.EventInfo;
 import com.gophillygo.app.data.networkresource.Status;
 import com.gophillygo.app.di.GpgViewModelFactory;
+import com.gophillygo.app.tasks.AddGeofenceWorker;
+import com.gophillygo.app.tasks.AddGeofencesBroadcastReceiver;
+import com.gophillygo.app.tasks.RemoveGeofenceWorker;
 import com.gophillygo.app.utils.GpgLocationUtils;
 import com.gophillygo.app.utils.UserUuidUtils;
 
@@ -57,6 +63,26 @@ public abstract class BaseAttractionActivity extends AppCompatActivity
     @SuppressWarnings("WeakerAccess")
     DestinationViewModel viewModel;
 
+    protected void addOrRemoveGeofence(AttractionInfo info, Boolean haveExistingGeofence, Boolean settingGeofence) {
+        if (settingGeofence) {
+            if (haveExistingGeofence) {
+                Log.d(LOG_LABEL, "No change to geofence");
+                return;
+            }
+            // add geofence
+            Log.d(LOG_LABEL, "Add attraction geofence");
+            if (info instanceof EventInfo) {
+                AddGeofencesBroadcastReceiver.addOneGeofence((EventInfo)info);
+            } else if (info instanceof DestinationInfo) {
+                AddGeofencesBroadcastReceiver.addOneGeofence(((DestinationInfo) info).getDestination());
+            }
+
+        } else if (haveExistingGeofence) {
+            Log.e(LOG_LABEL, "Removing attraction geofence");
+            RemoveGeofenceWorker.removeOneGeofence(info);
+        }
+    }
+
 
     private void setDefaultLocation() {
         Log.w(LOG_LABEL, "Using City Hall as default location");
@@ -215,12 +241,25 @@ public void onRequestPermissionsResult(int requestCode, @NonNull String[] permis
         if (requestCode == GpgLocationUtils.PERMISSION_REQUEST_ID) {
             if (grantResults.length > 0) {
                 if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
-                    Log.d(LOG_LABEL, "Re-requesting location after getting permissions");
+                    Log.d(LOG_LABEL, "Re-requesting location after getting fine location permissions");
                     fetchLastLocationOrUseDefault();
                 } else if (grantResults[0] == PackageManager.PERMISSION_DENIED) {
                     GpgLocationUtils.displayPermissionRequestRationale(getApplicationContext());
                 }
             }
+        } else if (requestCode == GpgLocationUtils.LOCATION_SETTINGS_REQUEST_ID) {
+            if (grantResults.length > 0) {
+                if (grantResults[0] == PackageManager.PERMISSION_GRANTED) {
+                    Log.d(LOG_LABEL, "Re-requesting location after getting location network permissions");
+                    fetchLastLocationOrUseDefault();
+                    Log.d(LOG_LABEL, "Attempting to register geofences from database again");
+                    Intent intent = new Intent(getApplicationContext(), AddGeofencesBroadcastReceiver.class);
+                    intent.setAction(AddGeofenceWorker.ACTION_GEOFENCE_TRANSITION);
+                    sendBroadcast(intent);
+                } else if (grantResults[0] == PackageManager.PERMISSION_DENIED) {
+                    Log.w(LOG_LABEL, "Location network permissions not updated; geofencing may not work");
+                }
+            }
         }
     }
 }

app/src/main/java/com/gophillygo/app/activities/EventDetailActivity.java

@@ -20,11 +20,14 @@
 import com.gophillygo.app.R;
 import com.gophillygo.app.data.DestinationViewModel;
 import com.gophillygo.app.data.EventViewModel;
+import com.gophillygo.app.data.models.AttractionFlag;
 import com.gophillygo.app.data.models.DestinationInfo;
 import com.gophillygo.app.data.models.Event;
 import com.gophillygo.app.data.models.EventInfo;
 import com.gophillygo.app.databinding.ActivityEventDetailBinding;
 import com.gophillygo.app.di.GpgViewModelFactory;
+import com.gophillygo.app.tasks.AddGeofencesBroadcastReceiver;
+import com.gophillygo.app.tasks.RemoveGeofenceWorker;
 import com.gophillygo.app.utils.FlagMenuUtils;
 import com.gophillygo.app.utils.UserUuidUtils;
 import com.synnapps.carouselview.CarouselView;
@@ -92,7 +95,7 @@ protected void onCreate(Bundle savedInstanceState) {
         viewModel = ViewModelProviders.of(this, viewModelFactory).get(EventViewModel.class);
         destinationViewModel = ViewModelProviders.of(this, viewModelFactory).get(DestinationViewModel.class);
         viewModel.getEvent(eventId).observe(this, eventInfo -> {
-            // TODO: handle if event not found (go to list of events?)
+            // TODO: #61 handle if event not found (go to list of events?)
             if (eventInfo == null || eventInfo.getEvent() == null) {
                 Log.e(LOG_LABEL, "No matching event found for ID " + eventId);
                 return;
@@ -185,9 +188,13 @@ private void displayEvent() {
             Log.d(LOG_LABEL, "Clicked flags button");
             PopupMenu menu = FlagMenuUtils.getFlagPopupMenu(this, flagOptionsCard, eventInfo.getFlag());
             menu.setOnMenuItemClickListener(item -> {
+                Boolean haveExistingGeofence = eventInfo.getFlag().getOption()
+                        .api_name.equals(AttractionFlag.Option.WantToGo.api_name);
+
                 eventInfo.updateAttractionFlag(item.getItemId());
                 viewModel.updateAttractionFlag(eventInfo.getFlag(), userUuid, getString(R.string.user_flag_post_api_key));
-
+                Boolean settingGeofence = destinationInfo.getFlag().getOption().api_name.equals(AttractionFlag.Option.WantToGo.api_name);
+                addOrRemoveGeofence(destinationInfo, haveExistingGeofence, settingGeofence);
                 return true;
             });
         });

app/src/main/java/com/gophillygo/app/activities/EventsListActivity.java

@@ -17,13 +17,16 @@
 import com.gophillygo.app.R;
 import com.gophillygo.app.adapters.EventsListAdapter;
 import com.gophillygo.app.data.EventViewModel;
+import com.gophillygo.app.data.models.AttractionFlag;
 import com.gophillygo.app.data.models.AttractionInfo;
 import com.gophillygo.app.data.models.EventInfo;
 import com.gophillygo.app.data.networkresource.Resource;
 import com.gophillygo.app.data.networkresource.Status;
 import com.gophillygo.app.databinding.ActivityEventsListBinding;
 import com.gophillygo.app.databinding.FilterButtonBarBinding;
 import com.gophillygo.app.di.GpgViewModelFactory;
+import com.gophillygo.app.tasks.AddGeofencesBroadcastReceiver;
+import com.gophillygo.app.tasks.RemoveGeofenceWorker;
 
 import java.util.ArrayList;
 import java.util.List;
@@ -65,9 +68,22 @@ public void clickedAttraction(int position) {
     }
 
     public boolean clickedFlagOption(MenuItem item, AttractionInfo eventInfo, Integer position) {
+        Boolean haveExistingGeofence = eventInfo.getFlag()
+                .getOption().api_name.equals(AttractionFlag.Option.WantToGo.api_name);
+
         eventInfo.updateAttractionFlag(item.getItemId());
         viewModel.updateAttractionFlag(eventInfo.getFlag(), userUuid, getString(R.string.user_flag_post_api_key));
         adapter.notifyItemChanged(position);
+
+        // do not attempt to add a geofence for an event with no location
+        if (((EventInfo)eventInfo).hasDestinationName()) {
+            Boolean settingGeofence = eventInfo.getFlag().getOption().api_name.equals(AttractionFlag.Option.WantToGo.api_name);
+            addOrRemoveGeofence(eventInfo, haveExistingGeofence, settingGeofence);
+        } else {
+            // TODO: notify user?
+            Log.w(LOG_LABEL, "Cannot add geofence for an event without an associated destination");
+        }
+
         return true;
     }
 

app/src/main/java/com/gophillygo/app/activities/HomeActivity.java

@@ -12,9 +12,12 @@
 import com.gophillygo.app.CarouselViewListener;
 import com.gophillygo.app.R;
 import com.gophillygo.app.adapters.PlaceCategoryGridAdapter;
+import com.gophillygo.app.data.models.AttractionFlag;
 import com.gophillygo.app.data.models.Destination;
 import com.synnapps.carouselview.CarouselView;
 
+import java.util.List;
+
 
 public class HomeActivity extends BaseAttractionActivity {
 
@@ -45,6 +48,7 @@ protected void onCreate(Bundle savedInstanceState) {
 
         // initialize carousel if destinations already loaded
         locationOrDestinationsChanged();
+
     }
 
     @Override