Preload images when the app is launched

[ai2010]

Hello,

I would like to load the images in cache when the app is launched so that when the user open some screen the images are already loaded.
Can I use:
module.controller('Ctrl', function(cacheSrcStorage) {
cacheSrcStorage.get('url') // === the local cache path for 'url'
});

Module does not exist in my app, what should I call instead?
instead of 'get' I put 'set'?
Thanks,