Fix locale NPE

src/main/java/com/todoroo/astrid/ui/MultilineListPreference.java

@@ -35,7 +35,7 @@ public class MultilineListPreference extends ListPreference {
     @Override
     protected void showDialog(Bundle state) {
         super.showDialog(state);
-        Locale.INSTANCE.applyDirectionality(getDialog());
+        Locale.getInstance(getContext()).applyDirectionality(getDialog());
     }
 
     @Override

src/main/java/org/tasks/injection/ApplicationModule.java

@@ -30,7 +30,7 @@ public class ApplicationModule {
 
     @Provides
     public Locale getLocale() {
-        return Locale.INSTANCE;
+        return Locale.getInstance(context);
     }
 
     @Provides

src/main/java/org/tasks/injection/InjectingAppCompatActivity.java

@@ -14,7 +14,7 @@ public abstract class InjectingAppCompatActivity extends AppCompatActivity imple
     @Inject Tracker tracker;
 
     public InjectingAppCompatActivity() {
-        Locale.INSTANCE.applyOverrideConfiguration(this);
+        Locale.getInstance(this).applyOverrideConfiguration(this);
     }
 
     @Override

src/main/java/org/tasks/injection/InjectingApplication.java

@@ -1,11 +1,8 @@
 package org.tasks.injection;
 
 import android.content.Context;
-import android.content.SharedPreferences;
-import android.preference.PreferenceManager;
 import android.support.multidex.MultiDexApplication;
 
-import org.tasks.R;
 import org.tasks.locale.Locale;
 
 public abstract class InjectingApplication extends MultiDexApplication {
@@ -16,12 +13,7 @@ public abstract class InjectingApplication extends MultiDexApplication {
     public void onCreate() {
         super.onCreate();
 
-        SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(this);
-        String language = prefs.getString(getString(R.string.p_language), null);
-        int directionOverride = Integer.parseInt(prefs.getString(getString(R.string.p_layout_direction), "-1"));
-        Locale.INSTANCE = new Locale(java.util.Locale.getDefault(), language, directionOverride);
-        java.util.Locale.setDefault(Locale.INSTANCE.getLocale());
-        Context context = Locale.INSTANCE.createConfigurationContext(getApplicationContext());
+        Context context = Locale.getInstance(this).createConfigurationContext(getApplicationContext());
 
         applicationComponent = DaggerApplicationComponent.builder()
                 .applicationModule(new ApplicationModule(context))

src/main/java/org/tasks/injection/InjectingPreferenceActivity.java

@@ -32,7 +32,7 @@ public abstract class InjectingPreferenceActivity extends AppCompatPreferenceAct
     @Inject Tracker tracker;
 
     public InjectingPreferenceActivity() {
-        Locale.INSTANCE.applyOverrideConfiguration(this);
+        Locale.getInstance(this).applyOverrideConfiguration(this);
     }
 
     @Override

src/main/java/org/tasks/injection/ThemedInjectingAppCompatActivity.java

@@ -16,7 +16,7 @@ public abstract class ThemedInjectingAppCompatActivity extends AppCompatActivity
     @Inject Theme theme;
 
     public ThemedInjectingAppCompatActivity() {
-        Locale.INSTANCE.applyOverrideConfiguration(this);
+        Locale.getInstance(this).applyOverrideConfiguration(this);
     }
 
     @Override

src/main/java/org/tasks/locale/Locale.java

@@ -2,7 +2,9 @@ package org.tasks.locale;
 
 import android.app.Dialog;
 import android.content.Context;
+import android.content.SharedPreferences;
 import android.content.res.Configuration;
+import android.preference.PreferenceManager;
 import android.support.v4.text.TextUtilsCompat;
 import android.view.ContextThemeWrapper;
 import android.view.View;
@@ -10,11 +12,30 @@ import android.view.ViewParent;
 
 import com.google.common.base.Strings;
 
+import org.tasks.R;
+
 import static com.todoroo.andlib.utility.AndroidUtilities.atLeastJellybeanMR1;
 
 public class Locale {
 
-    public static Locale INSTANCE;
+    private static Locale DEFAULT = new Locale(java.util.Locale.getDefault(), null, -1);
+    private static Locale INSTANCE;
+
+    public static Locale getInstance(Context context) {
+        if (INSTANCE == null) {
+            SharedPreferences prefs = PreferenceManager.getDefaultSharedPreferences(context);
+            String language = prefs.getString(context.getString(R.string.p_language), null);
+            int directionOverride = Integer.parseInt(prefs.getString(context.getString(R.string.p_layout_direction), "-1"));
+            INSTANCE = new Locale(DEFAULT.getLocale(), language, directionOverride);
+            java.util.Locale.setDefault(INSTANCE.getLocale());
+        }
+
+        return getInstance();
+    }
+
+    public static Locale getInstance() {
+        return INSTANCE == null ? DEFAULT : INSTANCE;
+    }
 
     private static final int[] sDialogButtons = new int[] { android.R.id.button1, android.R.id.button2, android.R.id.button3 };
     private static final char LEFT_TO_RIGHT_MARK = '\u200e';

src/main/java/org/tasks/time/DateTime.java

@@ -275,7 +275,7 @@ public class DateTime {
 
     public String toString(String format) {
         Calendar calendar = getCalendar();
-        SimpleDateFormat simpleDateFormat = new SimpleDateFormat(format, Locale.INSTANCE.getLocale());
+        SimpleDateFormat simpleDateFormat = new SimpleDateFormat(format, Locale.getInstance().getLocale());
         simpleDateFormat.setCalendar(calendar);
         return simpleDateFormat.format(calendar.getTime());
     }

src/main/java/org/tasks/widget/ScrollableViewsFactory.java

@@ -176,7 +176,7 @@ public class ScrollableViewsFactory implements RemoteViewsService.RemoteViewsFac
             }
 
             if (atLeastJellybeanMR1()) {
-                row.setInt(R.id.widget_row, "setLayoutDirection", Locale.INSTANCE.getDirectionality());
+                row.setInt(R.id.widget_row, "setLayoutDirection", Locale.getInstance(context).getDirectionality());
             }
 
             return row;
@@ -211,7 +211,7 @@ public class ScrollableViewsFactory implements RemoteViewsService.RemoteViewsFac
         RemoteViews rv = new RemoteViews(context.getPackageName(), R.layout.scrollable_widget);
         rv.setTextViewText(R.id.widget_title, filter.listingTitle);
         if (atLeastJellybeanMR1()) {
-            rv.setInt(R.id.widget, "setLayoutDirection", Locale.INSTANCE.getDirectionality());
+            rv.setInt(R.id.widget, "setLayoutDirection", Locale.getInstance(context).getDirectionality());
         }
         appWidgetManager.partiallyUpdateAppWidget(widgetId, rv);
         String query = SortHelper.adjustQueryForFlagsAndSort(preferences, filter.getSqlQuery(), sort).replaceAll("LIMIT \\d+", "");