We have a large model and it takes a couple seconds for ng-repeat to bind all the items in the model to the form. We would like to show a spinner while it this is happening. Is there some event that fires when binding is complete so we know when to hide the spinner?
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3stackoverflow.com/questions/13471129/… is this what you're looking for? I didn't flag as duplicate because I don't know enough about Angular to make that call. Hope this helps you though.Ricky Mutschlechner– Ricky Mutschlechner2013-11-08 16:31:47 +00:00Commented Nov 8, 2013 at 16:31
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I'm no angularjs expert, but the binding should be a syncronous operation. Show the spinner before the call, hide it after: no need to use callbacks.Saturnix– Saturnix2013-11-08 16:32:03 +00:00Commented Nov 8, 2013 at 16:32
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4 Answers
Plunkr: http://plnkr.co/edit/GzzTW4?p=preview
Use ng-show on the spinner If you are using 1.2 use ng-if
<div ng-controller="Ctrl">
<div ng-show="complete">Complete={{complete}}</div>
<div class="thing" ng-repeat="thing in things" my-post-repeat-directive>
thing {{thing}}
</div>
</div>
In your directive use $last to determine if rendering is done and then change the variable that you have the ng-show/ngif defined on.
function Ctrl($scope) {
$scope.complete=false;
$scope.doComplete = function() {
$scope.complete = true;
}
$scope.things = [
'A', 'B', 'C'
];
}
angular.module('myApp', [])
.directive('myPostRepeatDirective', function() {
return function(scope, element, attrs) {
if (scope.$last) {
scope.$eval('doComplete()');
}
};
});
Comments
You can watch for $last item compile/link function, and fire a custom event to the scope
Comments
In that kind of situations, I use the $timeout service mixed with the $viewContentLoaded event fired by angular ui router (if you use ui router) :
about $timeout :
This service is just a simple decorator for $timeout service that adds a "flush" and "verifyNoPendingTasks" methods.
about $viewContentLoaded
fired once the view is loaded, after the DOM is rendered. The '$scope' of the view emits the event.
My personal usecase is for a paymentForm to dynamically generate its hidden inputs (using HTML data computed serverside that I insert through ng-bind-html) and submit to the payment Gateway :
$scope.$on('$viewContentLoaded', function() {
$timeout(function () {
$scope.paymentForm.submit();
});
});
FYI in the above code example, .submit() is a function from a custom directive used with the form in order to be able to autosubmit the form.
Julien
Comments
For this I normally create a spinner div in your view with an ng-show="submitting". Then when the data is loaded, you set the $scope.submitting to 'false' show the spinner is hidden.
<!-- In your HTML -->
<div class="spinner" ng-show="submitting">
<div ng-repeat="p in people">
{{p.name}}
</div>
//In Javascript
$scope.submitting = true;
$scope.load_data = function(){
$http.get('/api/route')
.then(function(success){
$scope.submitting = false;
},function(error){
console.log(error);
});
}
I hope that helps
1 Comment
Nathaniel Johnson
I think the question is not so much about showing the spinner during a service call but during the processing of a large ng-repeat array.