AngularJS : How do I switch views from a controller function?

In order to switch between different views, you could directly change the window.location (using the $location service!) in
index.html file

<div ng-controller="Cntrl">
        <div ng-click="changeView('edit')">
            edit
        </div>
        <div ng-click="changeView('preview')">
            preview
        </div>
</div>

Controller.js

function Cntrl ($scope,$location) {
        $scope.changeView = function(view){
            $location.path(view); // path not hash
        }
    }

and configure the router to switch to different partials based on the location ( as shown here https://github.com/angular/angular-seed/blob/master/app/app.js ). This would have the benefit of history as well as using ng-view.

Alternatively, you use ng-include with different partials and then use a ng-switch as shown in here ( https://github.com/ganarajpr/Angular-UI-Components/blob/master/index.html )