Another solution you can do is to disable the view port from scrolling when the keyboard is open with cordova.plugins.Keyboard.disableScroll(true); in a run function.
.run(function ($ionicPlatform) {
$ionicPlatform.ready(function () {
// Hide the accessory bar by default (remove this to show the acces$
// for form inputs)
if (window.cordova && window.cordova.plugins.Keyboard) {
cordova.plugins.Keyboard.disableScroll(true);
}
if (window.StatusBar) {
// org.apache.cordova.statusbar required
StatusBar.styleDefault();
}
});
})