Ionic 3 screenOrientation.lock not working

Ionic Framework ionic-v3
1

Hi,

my screen orientation is not working on android device.

modal.ts

    this.screenOrientation.unlock();
    this.screenOrientation.lock(this.screenOrientation.ORIENTATIONS.LANDSCAPE);

46%20PM%20(2)
Screen Shot 2019-03-28 at 3.17.46 PM (2).png1680×1050 190 KB

2

On config.xml file put this code

 <preference name="orientation" value="portrait" />

And build again