Scroll to anchor after page load in Angular

问题

I need to set an ng-click event so that that it loads a new page, and then, once the page has loaded, scrolls to an anchor point on the page. I've tried every solution proposed on this SO post but I can't get it to work correctly.

Most of those solutions center around scrolling to an anchor on a page that's already loaded. I need the scroll to occur after a new page has loaded.

Here is my view code:

<div class="see-jobs-btn" ng-click="$event.stopPropagation();goToResultJobs(r)">See Jobs</div>

This represents a button inside a 'profile card'. When the user clicks on the card, it takes them to a profile page. However, when they click the button, it needs to take them to the #jobs portion of that profile page (hence the $stopPropogation() before the goToResultJobs(r) in the code).

Here is what my goToResultJobs method looks like.

$scope.goToResultJobs = function(result) {
    var profileUrl = result.slug;
    window.location = profileUrl;
};

I've tried using $anchorScroll and just hardcoding in the anchor into the profileUrl, but neither one works. I'm fairly new to Angular, so I don't know what I'm missing here.

UPDATE 1: Trying to use $timeout

Here is my goToResultJobs method within my ResultsCtrl that is triggered when the user clicks the button:

$scope.goToResultJobs = function(result) {
    var url = window.location + result.slug + '#jobs';
    location.replace(url);
};

That loads the /name#jobs path, which calls the ProfileCtrl below:

app.controller('ProfileCtrl', ['$scope', '$http', '$timeout', '$location', '$anchorScroll',
function($scope, $http, $timeout, $location, $anchorScroll) {
    if(window.location.hash) {
        $timeout(function() {
            console.log('TEST');
            // $location.hash('jobs');
            // $location.hash('jobs');
            $anchorScroll();
        }, 1000);
    };
}]);

This setup seems to work, as TEST only appears in the console when the jobs button is clicked, but not when the user just clicks on the profile. The problem I'm now facing is that the page starts loading, and the path in the url bar changes to /name#jobs, but before the page finishes loading, jobs is stripped from the url. Therefore, when $anchorScroll() is called, there is no anchor tag in the hash to scroll to.

回答1:

So as pointed out, the $anchorScroll has to occur after the page has been rendered, otherwise the anchor doesn't exist. This can be achieved using $timeout().

$timeout(function() {
  $anchorScroll('myAnchor');
});

You can see this plunkr. Make sure to view it in pop-out mode (the little blue button in the upper right corner of the output screen).

回答2:

Holy moly, this can be accomplished by simply adding autoscroll="true" to your template:

<div autoscroll="true" data-ng-include='"/templates/partials/layout/text-column.html"'></div>

Documentation

回答3:

Try:

angular.module('anchorScrollExample', [])
.controller('ScrollController', ['$scope', '$location', '$anchorScroll',
  function ($scope, $location, $anchorScroll) {
      $scope.gotoBottom = function() {
      // set the location.hash to the id of
      // the element you wish to scroll to.
      $location.hash('bottom');

      $anchorScroll();
    };
}]);

'bottom' here is the id of your html element to which you want to scroll to.

Documentation here: https://docs.angularjs.org/api/ng/service/$anchorScroll

回答4:

Maybe you can use native Javascript's Element.scrollIntoView() after the page has been loaded?

回答5:

my solution

export function onAnchorClick(fragment){

  fragment.subscribe(f=>{
    const element = document.querySelector( "#" + f )
    if ( element ) {
      element.scrollIntoView({behavior: "smooth", block: "center", inline: "center"})
    }

  })
}

来源：https://stackoverflow.com/questions/30245910/scroll-to-anchor-after-page-load-in-angular

标签

angularjs

anchor-scroll