Forked and tested in NS 6.2.0 for Android and it goes perfectly.

I've used the Vanilla example on VueJS and it works fine.

I've not tested it in iOS at all, yet.

A plugin to force change the orientation of a page programmatically in NativeScript. Supports both Android and iOS. V2.0 works on iOS10.x, angular, xcode 8 and webpack.

Code Sample (VanillaJS and VueJS)

var orientationModule = require("nativescript-screen-orientation");
    
  function pageLoaded(){
        orientationModule.setCurrentOrientation("landscape",function(){
                console.log("landscape orientation set");
            });
        }
       
   function onNavigatingFrom(){
        orientationModule.orientationCleanup();
        }
exports.pageLoad=pageLoaded;
exports.onNavigatingFrom=onNavigatingFrom;

Code Sample (Angular)

import {setCurrentOrientation , orientationCleanup} from 'nativescript-screen-orientation';

 @Component({moduleId:module.id,selector:"sample",templateUrl:"./sample.component.html"})
    
 export class SampleComponent{
  constructor(page:Page){
     page.on("navigatedTo",function(){
        setCurrentOrientation("portrait",function(){
        console.log("portrait orientation");
        });
     });
     page.on("navigatingFrom",function(){
   orientationCleanup();
        });
     });
  }
 }

Motivation

To allow force setting of orientation at page - level programmatically.

Installation

tns plugin add nativescript-screen-orientation

API Reference

Allowed orientations are 'portrait', 'landscape' and 'all'.

In order to force an orientation, hook the respective setCurrentOrientation methods at the pageLoad/navigatedTo event of page, while make sure the method orientationCleanup is called at the navigatingFrom event of the page.

setCurrentOrientation(orientation,callback)

orientation is a string with possible values 'landscape' , 'portrait' and 'all' . Parameter callback is a function to call once the orientation is set, can be null.
orientationCleanup()

should be called on the navigatingFrom event if setCurrentOrientation is called, if this method is not called, can lead to inconsistent behavior.

Troubleshooting

In iOS , on iPad, if the plugin is not working, it is due to changes in the features supported by iPad. It is required for latest iOS to support multiple apps at the same time by screen sharing, which discourages locking of orientation in a particular mode. In order to make it work on iPad, set the key 'Requires Fullscreen' in xCode under app settings.

hgc2002 / nativescript-screen-orientation