import { AndroidPermissions } from '@awesome-cordova-plugins/android-permissions/ngx';
constructor(private androidPermissions: AndroidPermissions) { }
...
this.androidPermissions.checkPermission(this.androidPermissions.PERMISSION.CAMERA).then(
result => console.log('Has permission?',result.hasPermission),
err => this.androidPermissions.requestPermission(this.androidPermissions.PERMISSION.CAMERA)
);
this.androidPermissions.requestPermissions([this.androidPermissions.PERMISSION.CAMERA, this.androidPermissions.PERMISSION.GET_ACCOUNTS]);