Angular JS Easy Image Preloader

Inspired heavily by this blog post. Credit for preloader code goes to Ben Nadel.

Step 1:

Include the preloader service in your controller:

app.controller('MyController', function($scope, preloader) {}

Step 2:

Pass in an array of images for the preloader:

$scope.imageLocations = [
    "img/one.png",
    "img/two.png",  
    "img/three.png",  
    ...               
 ];

Step 3:

Call the preloader.preloadImages function, passing in your array of images:

preloader.preloadImages( $scope.imageLocations )

preloader.preloadImages returns a promise, so you could also handle the promise like so:

preloader.preloadImages( $scope.imageLocations )
.then(function() {
    // Loading was successful.
},
function() {
    // Loading failed on at least one image.
}

That's it!