How to add a spinner while loading the content in AngularJS?

Question

I am using button spinner while loading the content, when the user clicks on the \"Search\" button content will load, at this time buttonLabel will be changed t

Answer 1

You should use ng-class to add/remove the class .spinning based on $scope.test. I have updated your fiddle here: http://jsfiddle.net/xc6nx235/15/

Answer 2

For Angular2/4, you can use [hidden] to control the visibility of the spinner. Here is a Plunker.

<button class="btn btn-primary" (click)="onClickDoSomething()">
  <span [hidden]="!spin">
        <i class="glyphicon glyphicon-refresh spinning"></i>
    </span> Do something
</button>

Where spinning is defined in as:

<style>
  .spinning {
    animation: spin 1s infinite linear;
  }

  @keyframes spin {
    from {
      transform: scale(1) rotate(0deg);
    }
    to {
      transform: scale(1) rotate(360deg);
    }
  }
</style>

And your component simply sets the boolean to control the visibility of the spinner. In this example, we simply spin for 10 seconds.

import {Component} from 'angular2/core';
import {Observable} from 'rxjs/Rx';

@Component({
  selector: 'do-something',
  templateUrl: 'src/dosomething.html'
})
export class DoSomething {
   private spin: boolean = false;

   onClickDoSomething() {
     this.spin = true;
     this.sub = Observable.interval(10000).subscribe(x => {
         this.sub.unsubscribe();
         this.spin = false;
     }); 
   }
}

Answer 3

Just add an ng-show to your spinner:

<span ng-show="loading"><i class="glyphicon glyphicon-refresh spinning"></i></span>

and controller:

.controller("LocationFormCtrl", function ($scope) {
    $scope.searchButtonText = "Search";
    $scope.loading = false;
    $scope.test="false";
    $scope.search = function() {
      $scope.test="true";
      $scope.loading="true"
      $scope.searchButtonText = "Searching";
      // Do your searching here
   }
});

Then, when you get your response, set $scope.loading to false again

Demo

Answer 4

You can also use this simple directive:

https://rawgit.com/jvdvleuten/angular-button-spinner/master/demo.html

To use it, just add the button-spinner='loading' attribute:

<button class="btn btn-success" ng-click="show()" button-spinner="loading">Load</button>

It will append a spinner to it, inside the button, when your loading variable in the scope is true.

Answer 5

Use ng-show directive like this ng-show="test" on spinner span:

Snippet:

// http://icelab.com.au/articles/levelling-up-with-angularjs-building-a-reusable-click-to-edit-directive/

angular.module("formDemo", [])

.controller("LocationFormCtrl", function($scope) {
  $scope.searchButtonText = "Search";
  $scope.test = "false";
  $scope.search = function() {
    $scope.test = "true";
    $scope.searchButtonText = "Searching";
    // Do your searching here
  }
});

</style> <!-- Ugly Hack due to jsFiddle issue:http://goo.gl/BUfGZ --> 
<link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/foundation/4.1.6/css/foundation.min.css"> <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css"> <!-- Optional theme --> <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap-theme.min.css"> <!-- Latest compiled and minified JavaScript --> <script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js"></script> <!-- <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.10.2/jquery.min.js"></script> --> <script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.0.7/angular.min.js"></script> <script src="https://rawgithub.com/angular-ui/angular-ui/master/build/angular-ui.js"></script> <style> body {
  font-family: "HelveticNeue", sans-serif;
  font-size: 14px;
  padding: 20px;
}
h2 {
  color: #999;
  margin-top: 0;
}
.field {
  margin-bottom: 1em;
}
.click-to-edit {
  display: inline-block;
}
input {
  display: initial !important;
  width: auto !important;
  margin: 0 5px 0 0 !important;
}
.glyphicon.spinning {
  animation: spin 1s infinite linear;
  -webkit-animation: spin2 1s infinite linear;
}
@keyframes spin {
  from {
    transform: scale(1) rotate(0deg);
  }
  to {
    transform: scale(1) rotate(360deg);
  }
}
@-webkit-keyframes spin2 {
  from {
    -webkit-transform: rotate(0deg);
  }
  to {
    -webkit-transform: rotate(360deg);
  }
}

<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div ng-app="formDemo" ng-controller="LocationFormCtrl">
  <div>
    <button type="submit" class="btn btn-primary" ng-click="search()">
      <span ng-show="test"><i class="glyphicon glyphicon-refresh spinning"></i></span>
      {{ searchButtonText }}
    </button>
  </div>
</div>

Answer 6

<div ng-app="formDemo" ng-controller="LocationFormCtrl">
<div>
    <button type="submit" class="btn btn-primary" ng-click="search()"> 
        <span ng-show="searchButtonText == 'Searching'"><i class="glyphicon glyphicon-refresh spinning"></i></span>
        {{ searchButtonText }}
    </button>
</div>

All you need to do is use ng-show or ng-hide directives.

ng-show="expression"

<span ng-show="searchButtonText == 'Searching'">
    <i class="glyphicon glyphicon-refresh spinning"></i>
</span>

this span will only be visible when searchButtonText will be equal to a string 'Searching'.

You should learn more about angular's directives. They'll be useful in future.

Good luck.

Demo http://jsfiddle.net/xc6nx235/16/