Explicitly recreate on ui mode changes

app/src/main/AndroidManifest.xml

@@ -153,18 +153,21 @@
 
         <activity
             android:name=".ActivitySetup"
+            android:configChanges="uiMode"
             android:exported="false"
             android:launchMode="singleTask"
             android:parentActivityName=".ActivityMain" />
 
         <activity
             android:name=".ActivitySignature"
+            android:configChanges="uiMode"
             android:exported="false"
             android:launchMode="singleTask"
             android:parentActivityName=".ActivitySetup" />
 
         <activity
             android:name=".ActivityWidget"
+            android:configChanges="uiMode"
             android:exported="true">
 
             <intent-filter>
@@ -174,6 +177,7 @@
 
         <activity
             android:name=".ActivityWidgetSync"
+            android:configChanges="uiMode"
             android:exported="true">
 
             <intent-filter>
@@ -183,6 +187,7 @@
 
         <activity
             android:name=".ActivityWidgetUnified"
+            android:configChanges="uiMode"
             android:exported="true">
 
             <intent-filter>
@@ -192,6 +197,7 @@
 
         <activity
             android:name=".ActivityView"
+            android:configChanges="uiMode"
             android:exported="false"
             android:launchMode="singleTask"
             android:parentActivityName=".ActivityMain" />
@@ -215,6 +221,7 @@
 
         <activity
             android:name=".ActivityCompose"
+            android:configChanges="uiMode"
             android:exported="true"
             android:launchMode="singleTask"
             android:parentActivityName=".ActivityView">
@@ -244,6 +251,7 @@
 
         <activity
             android:name=".ActivityEML"
+            android:configChanges="uiMode"
             android:exported="true"
             android:icon="@mipmap/ic_launcher"
             android:launchMode="singleTask">
@@ -278,6 +286,7 @@
 
         <activity
             android:name=".ActivityDSN"
+            android:configChanges="uiMode"
             android:exported="true"
             android:icon="@mipmap/ic_launcher"
             android:launchMode="singleTask">
@@ -298,6 +307,7 @@
 
         <activity
             android:name=".ActivityBilling"
+            android:configChanges="uiMode"
             android:exported="false"
             android:icon="@mipmap/ic_launcher"
             android:launchMode="singleTask" />

app/src/main/java/eu/faircode/email/ActivityBase.java

@@ -65,6 +65,7 @@ import java.util.Map;
 
 abstract class ActivityBase extends AppCompatActivity implements SharedPreferences.OnSharedPreferenceChangeListener {
     private Context originalContext;
+    private int themeId;
     private boolean visible;
     private boolean contacts;
     private List<IKeyPressedListener> keyPressedListeners = new ArrayList<>();
@@ -98,7 +99,8 @@ abstract class ActivityBase extends AppCompatActivity implements SharedPreferenc
             getWindow().addFlags(WindowManager.LayoutParams.FLAG_SECURE);
 
         if (!this.getClass().equals(ActivityMain.class)) {
-            setTheme(FragmentDialogTheme.getTheme(this));
+            themeId = FragmentDialogTheme.getTheme(this);
+            setTheme(themeId);
 
             if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.O) {
                 boolean dark = Helper.isDarkTheme(this);
@@ -192,6 +194,10 @@ abstract class ActivityBase extends AppCompatActivity implements SharedPreferenc
     public void onConfigurationChanged(Configuration newConfig) {
         Log.d("Config " + this.getClass().getName());
         super.onConfigurationChanged(newConfig);
+
+        if (!this.getClass().equals(ActivityMain.class) &&
+                themeId != FragmentDialogTheme.getTheme(this))
+            recreate();
     }
 
     @Override