Ionic: How to override back button function? -

i need override button function both buttons:

• the icon on top left corner of nav-bar
• the hardware button (for example in android)

but 1 specific view, not globally. how can that?

this code android button, while button on navigation bar bit more simple:

android button :

$ionicplatform.registerbackbuttonaction(function (event) {   if($state.current.name=="home"){     alert("button back");   } }, 100); 

ionic button :

you can edit topic , see how have defined menus , views?