Small performance changes

app/src/main/java/org/isoron/uhabits/activities/habits/list/views/CheckmarkButtonView.java

@@ -138,7 +138,7 @@ public class CheckmarkButtonView extends View
         paint.setTextSize(res.getDimension(R.dimen.regularTextSize));
 
         rect = new RectF();
-        color = ColorUtils.getAndroidTestColor(0);
+        color = Color.BLACK;
         lowContrastColor = styledRes.getColor(R.attr.lowContrastTextColor);
     }
 }

app/src/main/java/org/isoron/uhabits/models/ScoreList.java

@@ -33,6 +33,8 @@ public abstract class ScoreList implements Iterable<Score>
 
     protected ModelObservable observable;
 
+    protected Double todayValue = null;
+
     /**
      * Creates a new ScoreList for the given habit.
      * <p>
@@ -69,7 +71,8 @@ public abstract class ScoreList implements Iterable<Score>
      */
     public double getTodayValue()
     {
-        return getValue(DateUtils.getStartOfToday());
+        if(todayValue == null) todayValue = getValue(DateUtils.getStartOfToday());
+        return todayValue;
     }
 
     /**

app/src/main/java/org/isoron/uhabits/models/memory/MemoryScoreList.java

@@ -77,6 +77,8 @@ public class MemoryScoreList extends ScoreList
             if (s.getTimestamp() >= timestamp) discard.add(s);
 
         list.removeAll(discard);
+
+        todayValue = null;
         getObservable().notifyListeners();
     }
 

app/src/main/java/org/isoron/uhabits/models/sqlite/SQLiteScoreList.java

@@ -132,6 +132,7 @@ public class SQLiteScoreList extends ScoreList
             .and("timestamp >= ?", timestamp)
             .execute();
 
+        todayValue = null;
         getObservable().notifyListeners();
     }
 

app/src/main/java/org/isoron/uhabits/models/sqlite/records/HabitRecord.java

@@ -52,16 +52,16 @@ public class HabitRecord extends Model implements SQLiteRecord
     public String description;
 
     @Column(name = "freq_num")
-    public Integer freqNum;
+    public int freqNum;
 
     @Column(name = "freq_den")
-    public Integer freqDen;
+    public int freqDen;
 
     @Column(name = "color")
-    public Integer color;
+    public int color;
 
     @Column(name = "position")
-    public Integer position;
+    public int position;
 
     @Nullable
     @Column(name = "reminder_hour")
@@ -71,24 +71,23 @@ public class HabitRecord extends Model implements SQLiteRecord
     @Column(name = "reminder_min")
     public Integer reminderMin;
 
-    @NonNull
     @Column(name = "reminder_days")
-    public Integer reminderDays;
+    public int reminderDays;
 
     @Column(name = "highlight")
-    public Integer highlight;
+    public int highlight;
 
     @Column(name = "archived")
-    public Integer archived;
+    public int archived;
 
     @Column(name = "type")
-    public Integer type;
+    public int type;
 
     @Column(name = "target_value")
-    public Double targetValue;
+    public double targetValue;
 
     @Column(name = "target_type")
-    public Integer targetType;
+    public int targetType;
 
     @Column(name = "unit")
     public String unit;

app/src/main/java/org/isoron/uhabits/notifications/NotificationTray.java

@@ -95,8 +95,11 @@ public class NotificationTray
                 (ToggleRepetitionCommand) command;
 
             Habit habit = toggleCmd.getHabit();
-            if (habit.getCheckmarks().getTodayValue() != Checkmark.UNCHECKED)
-                cancel(habit);
+            taskRunner.execute(() ->
+            {
+                if (habit.getCheckmarks().getTodayValue() !=
+                    Checkmark.UNCHECKED) cancel(habit);
+            });
         }
 
         if (command instanceof DeleteHabitsCommand)

app/src/main/java/org/isoron/uhabits/widgets/WidgetUpdater.java

@@ -25,6 +25,7 @@ import android.support.annotation.*;
 
 import org.isoron.uhabits.*;
 import org.isoron.uhabits.commands.*;
+import org.isoron.uhabits.tasks.*;
 
 import javax.inject.*;
 
@@ -40,15 +41,19 @@ public class WidgetUpdater implements CommandRunner.Listener
     @NonNull
     private final CommandRunner commandRunner;
 
+    private TaskRunner taskRunner;
+
     @NonNull
     private final Context context;
 
     @Inject
     public WidgetUpdater(@NonNull @AppContext Context context,
-                         @NonNull CommandRunner commandRunner)
+                         @NonNull CommandRunner commandRunner,
+                         @NonNull TaskRunner taskRunner)
     {
         this.context = context;
         this.commandRunner = commandRunner;
+        this.taskRunner = taskRunner;
     }
 
     @Override
@@ -78,12 +83,15 @@ public class WidgetUpdater implements CommandRunner.Listener
     }
 
     public void updateWidgets()
+    {
+        taskRunner.execute(() ->
         {
             updateWidgets(CheckmarkWidgetProvider.class);
             updateWidgets(HistoryWidgetProvider.class);
             updateWidgets(ScoreWidgetProvider.class);
             updateWidgets(StreakWidgetProvider.class);
             updateWidgets(FrequencyWidgetProvider.class);
+        });
     }
 
     public void updateWidgets(Class providerClass)