Nativescript close application

 Example of use in function onClose()

import { isIOS } from '@nativescript/core/platform';

//declaration of native functions
declare const android:any;
declare const exit: (code: number)=>void;

 

//Use for example in component 

onClose() {

    if (isIOS) {
        exit(0);
    } else {    
        android.os.Process.killProcess(android.os.Process.myPid());
    }
  }