ionic-framework/ionic/components/radio/test/basic/index.js

import {Component, Directive} from 'angular2/src/core/annotations_impl/annotations';
import {View} from 'angular2/src/core/annotations_impl/view';

import {FormBuilder, Validators, FormDirectives, ControlGroup} from 'angular2/forms';
import {RadioGroup, RadioButton, Content, Button, List} from 'ionic/ionic';


@Component({ selector: 'ion-view' })
@View({
  templateUrl: 'main.html',
  directives: [FormDirectives].concat([RadioGroup, RadioButton, List, Content, Button])
})
export default class IonicApp {
  constructor() {
    console.log('IonicApp Start')

    var fb = new FormBuilder();
    this.form = fb.group({
      preferredApple: ['mac', Validators.required],
    });
  }
}