Allow Ionic2 keyboard to open without pushing or scrolling content

app.ts

// Minimum viable app.ts pulled from https://github.com/driftyco/ionic2-starter-blank/tree/41b4da8329636a95ab05d2579efd3a1527d2e830
// This snapshot is likely ionic-angular@2.0.0-beta.4 compatable

import 'es6-shim';
import {App, Platform} from 'ionic-angular';
import {StatusBar} from 'ionic-native';
import {HomePage} from './pages/home/home';

@App({
  template: '<ion-nav [root]="rootPage"></ion-nav>',
  config: {
    // These options are available in ionic-angular@2.0.0-beta.2 and up.
    scrollAssist: false,    // Valid options appear to be [true, false]
    autoFocusAssist: false  // Valid options appear to be ['instant', 'delay', false]
  } // http://ionicframework.com/docs/v2/api/config/Config/
})
export class MyApp {
  rootPage: any = HomePage;

  constructor(platform: Platform) {
    platform.ready().then(() => {
      // Okay, so the platform is ready and our plugins are available.
      // Here you can do any higher level native things you might need.
      StatusBar.styleDefault();
      
      if (window.cordova && window.cordova.plugins.Keyboard) {
        // This requires installation of https://github.com/driftyco/ionic-plugin-keyboard
        // and can only affect native compiled Ionic2 apps (not webserved).
        cordova.plugins.Keyboard.disableScroll(true);
      }
    });
  }
}

Adding the following to config.xml fixed the issue for me (ionic v4.4.0):

<preference name="KeyboardResize" value="true" /> <preference name="KeyboardResizeMode" value="ionic" />

See ionic-team/cordova-plugin-ionic-keyboard#47 (comment)