如何从ionic2框架警告框中获取文本域值？

import { AlertController } from 'ionic-angular';

@Component({...})
export class MyPage {
  constructor(public alertCtrl: AlertController) {}

  showAlert() {
    let alert = this.alertCtrl.create({
      title: '输入框',
      inputs: [
        {
          name: 'inputField',
          placeholder: '请输入文本'
        }
      ],
      buttons: [
        {
          text: '取消',
          role: 'cancel',
          handler: data => {
            console.log('取消');
          }
        },
        {
          text: '确定',
          handler: data => {
            console.log('输入的值为: ' + data.inputField);
          }
        }
      ]
    });

    alert.present();
  }
}