Retain scroll position on route change in AngularJS?

Question

Sample app: http://angular.github.com/angular-phonecat/step-11/app/#/phones

If you choose the last phone \"Motorola charm\" it will show you the details of the phone

Answer 1

i created a directive that works on the window scroll ( it could updated to work on any element though )

html usage

where "service.scrollY" MUST be a variable within a service. Services retain their state and values, controllers are recreated every time they load and clear their values so you cant use them to store persistent data. the controller has a scope variable pointing to the service.

directive js

app.directive('ngKeepScroll', function ($timeout) {
    return function (scope, element, attrs) {

        //load scroll position after everything has rendered
        $timeout(function () {
            var scrollY = parseInt(scope.$eval(attrs.ngKeepScroll));
            $(window).scrollTop(scrollY ? scrollY : 0);
        }, 0);

        //save scroll position on change
        scope.$on("$routeChangeStart", function () {
            scope.$eval(attrs.ngKeepScroll + " = " + $(window).scrollTop());
        });
    }
});