MOBILE-3833 settings: Don't reload whole app when change language

src/core/features/mainmenu/mainmenu.module.ts

@@ -41,6 +41,10 @@ const appRoutes: Routes = [
         canActivate: [CoreMainMenuAuthGuard],
         canLoad: [CoreMainMenuAuthGuard],
     },
+    {
+        path: 'reload',
+        loadChildren: () => import('./pages/reload/reload.module').then( m => m.CoreMainMenuReloadPageModule),
+    },
 ];
 
 @NgModule({

src/core/features/mainmenu/pages/reload/reload.html

@@ -0,0 +1,3 @@
+<ion-content>
+    <core-loading></core-loading>
+</ion-content>

src/core/features/mainmenu/pages/reload/reload.module.ts

@@ -0,0 +1,37 @@
+// (C) Copyright 2015 Moodle Pty Ltd.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+import { NgModule } from '@angular/core';
+import { RouterModule, Routes } from '@angular/router';
+import { CoreSharedModule } from '@/core/shared.module';
+import { CoreMainMenuReloadPage } from './reload';
+
+const routes: Routes = [
+    {
+        path: '',
+        component: CoreMainMenuReloadPage,
+    },
+];
+
+@NgModule({
+    imports: [
+        RouterModule.forChild(routes),
+        CoreSharedModule,
+    ],
+    declarations: [
+        CoreMainMenuReloadPage,
+    ],
+    exports: [RouterModule],
+})
+export class CoreMainMenuReloadPageModule {}

src/core/features/mainmenu/pages/reload/reload.ts

@@ -0,0 +1,36 @@
+// (C) Copyright 2015 Moodle Pty Ltd.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+import { Component, OnInit } from '@angular/core';
+import { CoreNavigator } from '@services/navigator';
+
+/**
+ * Page that displays a loading and then opens the main menu again.
+ */
+@Component({
+    selector: 'page-core-mainmenu-reload',
+    templateUrl: 'reload.html',
+})
+export class CoreMainMenuReloadPage implements OnInit {
+
+    /**
+     * @inheritdoc
+     */
+    ngOnInit(): void {
+        CoreNavigator.navigate('/main', {
+            reset: true,
+        });
+    }
+
+}

src/core/features/settings/pages/general/general.ts

@@ -26,6 +26,7 @@ import { Diagnostic, Translate } from '@singletons';
 import { CoreSites } from '@services/sites';
 import { CoreUtils } from '@services/utils/utils';
 import { AlertButton } from '@ionic/angular';
+import { CoreNavigator } from '@services/navigator';
 
 /**
  * Page that displays the general settings.
@@ -168,7 +169,10 @@ export class CoreSettingsGeneralPage {
         await CoreUtils.ignoreErrors(Promise.all(sites.map((site) => site.invalidateWsCache())));
 
         CoreEvents.trigger(CoreEvents.LANGUAGE_CHANGED, this.selectedLanguage);
-        window.location.reload();
+
+        CoreNavigator.navigate('/reload', {
+            reset: true,
+        });
     }
 
     /**