bug adding file to chat on ios solved

src/app/app.component.ts

@@ -12,6 +12,7 @@ import { Storage } from '@ionic/storage';
 import { ChatController } from './controller/chat';
 import { register } from 'swiper/element/bundle';
 import { DomSanitizer } from '@angular/platform-browser';
+import {ScreenOrientation} from "@ionic-native/screen-orientation/ngx";
 
 const CUSTOM_DATE_FORMATS: NgxMatDateFormats = {
   parse: {
@@ -41,7 +42,8 @@ export class AppComponent {
       public ThemeService: ThemeService,
       private storage: Storage,
       private ChatSystemService: ChatSystemService,
-      private sanitizer: DomSanitizer
+      private sanitizer: DomSanitizer,
+      private screenOrientation: ScreenOrientation
   ) {
 
     window["sanitizer"] = this.sanitizer
@@ -77,9 +79,12 @@ export class AppComponent {
       if (this.platform.is("tablet")) {
         window.screen.orientation.unlock();
       } else if( this.platform.is("mobile")) {
-        // window.screen.orientation.lock('portrait');
+        if(this.platform.is('ios')){
+          this.screenOrientation.lock('portrait')
+        } else {
+          window.screen.orientation.lock('portrait');
+        }
       }
-
     });
   }
 }