Try fixing the localization issues

briar-android/src/main/java/org/briarproject/briar/android/BriarApplicationImpl.java

@@ -10,6 +10,7 @@ import android.os.StrictMode;
 import android.os.StrictMode.ThreadPolicy;
 import android.os.StrictMode.VmPolicy;
 import android.preference.PreferenceManager;
+import android.util.Log;
 
 import com.vanniktech.emoji.EmojiManager;
 import com.vanniktech.emoji.google.GoogleEmojiProvider;
@@ -96,6 +97,7 @@ public class BriarApplicationImpl extends Application
 		Localizer.initialize(prefs);
 		super.attachBaseContext(
 				Localizer.getInstance().setLocale(base));
+		Localizer.getInstance().setLocale(this);
 		setTheme(base, prefs);
 		ACRA.init(this);
 	}
@@ -145,6 +147,7 @@ public class BriarApplicationImpl extends Application
 	@Override
 	public void onConfigurationChanged(Configuration newConfig) {
 		super.onConfigurationChanged(newConfig);
+		Log.d("language", "BriarApplicationImpl#onConfigurationChanged()");
 		Localizer.getInstance().setLocale(this);
 	}
 

briar-android/src/main/java/org/briarproject/briar/android/BriarService.java

@@ -13,6 +13,7 @@ import android.content.IntentFilter;
 import android.content.ServiceConnection;
 import android.os.Binder;
 import android.os.IBinder;
+import android.util.Log;
 
 import org.briarproject.bramble.api.account.AccountManager;
 import org.briarproject.bramble.api.crypto.SecretKey;
@@ -160,7 +161,9 @@ public class BriarService extends Service {
 
 	@Override
 	protected void attachBaseContext(Context base) {
+		Log.d("language", "BriarService#attachBaseContext()");
 		super.attachBaseContext(Localizer.getInstance().setLocale(base));
+		Localizer.getInstance().setLocale(this);
 	}
 
 	private void showStartupFailureNotification(StartResult result) {

briar-android/src/main/java/org/briarproject/briar/android/Localizer.java

@@ -4,6 +4,7 @@ import android.content.Context;
 import android.content.SharedPreferences;
 import android.content.res.Configuration;
 import android.content.res.Resources;
+import android.util.Log;
 
 import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
 
@@ -26,22 +27,29 @@ public class Localizer {
 	private Localizer(SharedPreferences sharedPreferences) {
 		this(Locale.getDefault(), getLocaleFromTag(
 				sharedPreferences.getString(LANGUAGE, "default")));
+		Log.d("language", "preference: " +
+				sharedPreferences.getString(LANGUAGE, "default"));
 	}
 
 	private Localizer(Locale systemLocale, @Nullable Locale userLocale) {
 		this.systemLocale = systemLocale;
 		if (userLocale == null) locale = systemLocale;
 		else locale = userLocale;
+		Log.d("language", "Localizer() system locale: " + systemLocale);
+		Log.d("language", "Localizer() current locale: " + locale);
 	}
 
 	// Instantiate the Localizer.
 	public static synchronized void initialize(SharedPreferences prefs) {
+		Log.d("language", "Localizer#initialize()");
+		Log.d("language", "sdk: " + SDK_INT);
 		if (INSTANCE == null)
 			INSTANCE = new Localizer(prefs);
 	}
 
 	// Reinstantiate the Localizer with the system locale
 	public static synchronized void reinitialize() {
+		Log.d("language", "Localizer#reinitialize()");
 		if (INSTANCE != null)
 			INSTANCE = new Localizer(INSTANCE.systemLocale, null);
 	}
@@ -72,17 +80,20 @@ public class Localizer {
 	public Context setLocale(Context context) {
 		Resources res = context.getResources();
 		Configuration conf = res.getConfiguration();
+
 		Locale currentLocale;
 		if (SDK_INT >= 24) {
 			currentLocale = conf.getLocales().get(0);
 		} else
 			currentLocale = conf.locale;
+		Log.d("language", "current locale: " + currentLocale);
 		if (locale.equals(currentLocale))
 			return context;
+		Log.d("language", "set locale: " + locale);
 		Locale.setDefault(locale);
 		if (SDK_INT >= 17) {
 			conf.setLocale(locale);
-			context.createConfigurationContext(conf);
+			context = context.createConfigurationContext(conf);
 		} else
 			conf.locale = locale;
 		//noinspection deprecation

briar-android/src/main/java/org/briarproject/briar/android/activity/BaseActivity.java

@@ -2,6 +2,7 @@ package org.briarproject.briar.android.activity;
 
 import android.content.Context;
 import android.os.Bundle;
+import android.util.Log;
 import android.view.View;
 import android.view.ViewGroup;
 import android.view.ViewGroup.LayoutParams;
@@ -36,6 +37,7 @@ import javax.inject.Inject;
 import androidx.annotation.LayoutRes;
 import androidx.annotation.UiThread;
 import androidx.appcompat.app.AppCompatActivity;
+import androidx.appcompat.view.ContextThemeWrapper;
 import androidx.appcompat.widget.Toolbar;
 import androidx.fragment.app.Fragment;
 import androidx.fragment.app.FragmentManager;
@@ -106,12 +108,24 @@ public abstract class BaseActivity extends AppCompatActivity
 		for (ActivityLifecycleController alc : lifecycleControllers) {
 			alc.onActivityCreate(this);
 		}
+
+		Log.d("language", "BaseActivity#onCreate()");
+		Context baseContext = getBaseContext();
+		Log.d("language", "Context: " + getBaseContext().toString());
+		if (baseContext instanceof ContextThemeWrapper) {
+			ContextThemeWrapper wrapper = (ContextThemeWrapper) baseContext;
+			Context wrapped = wrapper.getBaseContext();
+			Log.d("language", "Wrapped: " + wrapped.toString());
+		}
 	}
 
 	@Override
 	protected void attachBaseContext(Context base) {
+		Log.d("language", "BaseActivity#attachBaseContext()");
+		Log.d("language", "Context: " + base.toString());
 		super.attachBaseContext(
 				Localizer.getInstance().setLocale(base));
+		Localizer.getInstance().setLocale(this);
 	}
 
 	public ActivityComponent getActivityComponent() {