Dark theme for EULA

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

@@ -100,10 +100,8 @@ abstract class ActivityBase extends AppCompatActivity implements SharedPreferenc
         if (!this.getClass().equals(ActivityMain.class)) {
             String theme = prefs.getString("theme", "blue_orange_system");
 
-            // https://developer.android.com/guide/topics/ui/look-and-feel/darktheme#configuration_changes
-            int uiMode = getResources().getConfiguration().uiMode;
-            boolean night = ((uiMode & Configuration.UI_MODE_NIGHT_MASK) == Configuration.UI_MODE_NIGHT_YES);
-            EntityLog.log(this, "Activity theme=" + theme + " UI mode=" + uiMode + " night=" + night);
+            boolean night = Helper.isNight(this);
+            EntityLog.log(this, "Activity theme=" + theme + " night=" + night);
 
             switch (theme) {
                 // Light

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

@@ -181,7 +181,10 @@ public class ActivityMain extends ActivityBase implements FragmentManager.OnBack
             else
                 prefs.edit().putBoolean("compact", true).apply();
 
-            setTheme(R.style.AppThemeBlueOrangeLight);
+            if (Helper.isNight(this))
+                setTheme(R.style.AppThemeBlueOrangeDark);
+            else
+                setTheme(R.style.AppThemeBlueOrangeLight);
             super.onCreate(savedInstanceState);
             setContentView(R.layout.activity_main);
 

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

@@ -861,6 +861,13 @@ public class Helper {
         view.setLayoutParams(lparam);
     }
 
+    static boolean isNight(Context context) {
+        // https://developer.android.com/guide/topics/ui/look-and-feel/darktheme#configuration_changes
+        int uiMode = context.getResources().getConfiguration().uiMode;
+        Log.i("UI mode=" + uiMode);
+        return ((uiMode & Configuration.UI_MODE_NIGHT_MASK) == Configuration.UI_MODE_NIGHT_YES);
+    }
+
     static boolean isDarkTheme(Context context) {
         TypedValue tv = new TypedValue();
         context.getTheme().resolveAttribute(R.attr.themeName, tv, true);