In ionic.Platform.ready, the keyboardUpdateViewportHeight is called, in which the keyboardViewportHeight is set to window.innerHeight. In Android version 4.4.2 Samsung S4, window.innerHeight is always returned 0. When I used scree.height instead of window.innerHeight in keyboardUpdateViewportHeight function, I was getting the correct value. We are using Ionic, v1.0.0-beta.11-nightly-421