Unbind / Deregister Ionic registerBackButtonAction

ionicPlatformDeregister.js

// To solve weird android behaviors we need to manually implement Hardware back-button actions sometimes
// $ionicPlatform.registerBackButtonAction returns a deregister function
var deregisterFunction = $ionicPlatform.registerBackButtonAction(backButtonAction, 500);

// Example way of unbinding
if(something === false) {
  deregisterFunction();
}

// Or if registered for a particular view / page
$scope.$on('$destroy', deregisterFunction);


function backButtonAction() {
  // Does something
}

// Reference which was really hard to find when I ran into this issue
// http://forum.ionicframework.com/t/tutorial-to-learn-about-hardware-back-button/5200