Notify content provider after tasks deleted

app/src/main/java/com/todoroo/astrid/dao/Database.java

@@ -108,7 +108,7 @@ public abstract class Database extends RoomDatabase {
     return this;
   }
 
-  void onDatabaseUpdated() {
+  public void onDatabaseUpdated() {
     if (onDatabaseUpdated != null) {
       onDatabaseUpdated.run();
     }

app/src/main/java/org/tasks/data/DeletionDao.java

@@ -7,11 +7,19 @@ import android.arch.persistence.room.Dao;
 import android.arch.persistence.room.Delete;
 import android.arch.persistence.room.Query;
 import android.arch.persistence.room.Transaction;
+import com.todoroo.astrid.dao.Database;
 import java.util.ArrayList;
 import java.util.List;
 
 @Dao
 public abstract class DeletionDao {
+
+  private final Database database;
+
+  public DeletionDao(Database database) {
+    this.database = database;
+  }
+
   @Query("SELECT _id FROM tasks WHERE deleted > 0")
   public abstract List<Long> getDeleted();
 
@@ -43,6 +51,7 @@ public abstract class DeletionDao {
       deleteCaldavTasks(partition);
       deleteTasks(partition);
     }
+    database.onDatabaseUpdated();
   }
 
   @Query("UPDATE tasks SET modified = :timestamp, deleted = :timestamp WHERE _id IN(:ids)")
@@ -53,6 +62,7 @@ public abstract class DeletionDao {
     for (List<Long> partition : partition(ids, 997)) {
       markDeleted(now, partition);
     }
+    database.onDatabaseUpdated();
   }
 
   @Query("SELECT task FROM google_tasks WHERE deleted = 0 AND list_id = :listId")