Retain Scroll Position On Route Change In Angularjs

Do you find it frustrating when your webpage loses its scroll position every time you navigate between different views in your AngularJS application? Don't worry, we've got you covered! In this guide, we'll show you a simple and effective way to retain the scroll position on route changes in your AngularJS project.

AngularJS provides a seamless way to build single-page applications, but by default, it does not preserve the scroll position when you move to a different route. However, with a few tweaks, you can ensure that your users don't lose their place on the page when they navigate around your app.

To achieve scroll position retention, we have to tap into AngularJS's routing system and leverage the power of the `$routeChangeSuccess` event. This event is triggered every time a route finishes loading, making it the perfect hook for our scroll position saving mechanism.

The first step is to inject the `$anchorScroll` service into your controller or component. This service allows us to scroll to a specific element on the page, which is crucial for restoring the scroll position accurately.

Next, we need to capture the scroll position whenever a route changes. Inside your controller or component, listen for the `$routeChangeSuccess` event and save the current scroll position. You can achieve this by storing the `window.scrollY` value in a variable.

Here's a simple code snippet to demonstrate how you can implement scroll position retention in AngularJS:

myApp.controller('MainController', function($scope, $location, $anchorScroll, $window) {
  var scrollPosition = 0;

  $scope.$on('$routeChangeSuccess', function() {
    $window.scrollTo(0, scrollPosition);
  });

  $scope.$on('$routeChangeStart', function() {
    scrollPosition = $window.scrollY;
  });
});

In this code snippet, we're using `$window` to access the global `window` object and store the scroll position before a route change occurs. Then, when the new route finishes loading, we scroll back to the saved position using `$window.scrollTo`.

By following these simple steps, you can ensure that your users have a seamless browsing experience without losing their scroll position when navigating your AngularJS application. This small adjustment can significantly improve the user experience and make your app feel more polished and user-friendly.

In conclusion, retaining scroll position on route changes in AngularJS is a valuable enhancement that can elevate the usability of your single-page application. With just a few lines of code, you can provide a smoother and more intuitive browsing experience for your users. So go ahead, implement this feature in your AngularJS project and watch your users appreciate the attention to detail!