ionic cordava keyboard pushing ion-footer-bar off screen

I am writing an app using ionic framework, and have a keyboard issue. See following screen shot:

this is the chatting page, everything goes fine

enter image description here

then i tap the input bar:

enter image description here enter image description here

could see the keyboard push the footer input bar out of screen.

I use ionic 1.0.0-rc.5, and use keyboard-attach on the ion-footer-bar. This problem appears in the ios, i haven't tested android.

Have been struggling for a while, how could i fix it, thanks a lot for help!

Update: this view is inside a tab view, and i use tabs-item-hide to hide the tab bar. Maybe I should separate it from tabs so the ion-footer-bar become the only footer in this page?

Update: I separate the chatting view from tabs view, bug still exists :-(

I delete keyboard-attach, then it works.

Following the doc http://ionicframework.com/docs/api/directive/keyboardAttach/ not work, so wierd.

Will updates here if any further bugs or better solutions.