properly setting redux isDarkTheme and setTheme separatly to differ between active and saved state

src/screens/settings/container/settingsContainer.js

@@ -1,5 +1,5 @@
 import React, { Component } from 'react';
-import { Platform, Alert } from 'react-native';
+import { Platform, Alert, Appearance } from 'react-native';
 import { connect } from 'react-redux';
 import { Client } from '@hiveio/dhive';
 import VersionNumber from 'react-native-version-number';
@@ -7,6 +7,8 @@ import Config from 'react-native-config';
 import { injectIntl } from 'react-intl';
 import messaging from '@react-native-firebase/messaging';
 import { languageRestart } from '../../../utils/I18nUtils';
+import THEME_OPTIONS from '../../../constants/options/theme';
+
 // Realm
 import {
   getExistUser,
@@ -22,6 +24,7 @@ import {
   setAuthStatus,
   setExistUser,
   removeAllUserData,
+  getTheme,
 } from '../../../realm/realm';
 
 // Services and Actions
@@ -119,6 +122,21 @@ class SettingsContainer extends Component {
         setNsfw2DB(action);
         break;
 
+      case 'theme':
+        let setting = THEME_OPTIONS[action].value;
+        const systemTheme = Appearance.getColorScheme();
+
+        dispatch(isDarkTheme(setting === null
+          ? systemTheme === 'dark'
+          : setting
+        ));
+        
+        setTheme(setting);
+        this.setState({
+          themeSetting:setting
+        })
+        break;
+
       default:
         break;
     }
@@ -208,11 +226,6 @@ class SettingsContainer extends Component {
         this._handleNotification(action, actionType);
         break;
 
-      case 'theme':
-        dispatch(isDarkTheme(action));
-        setTheme(action);
-        break;
-
       case 'default_footer':
         dispatch(isDefaultFooter(action));
         // setDefaultFooter(action);