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Utilizing the Queue Library from Async.js for downloading multiple assets with Appcelerator Titanium
//
// https://github.com/caolan/async
//
var async = require('async');
// this function will be called for each array element
function process(_url, _processCallback) {
// download the file
get_file(_url, function(_resp) {
if (!_resp.error) {
Ti.API.debug('file successfully downloaded ' + _url);
} else {
Ti.API.error('Error Downloading file ' + _url);
Ti.API.error('Error Message ' + _resp.error);
}
_processCallback(_resp.error);
}, null);
};
// create the queue
var myQueue = async.queue(process, 3);
// called when the process is completed
myQueue.drain = function() {
Ti.API.info('all items have been processed');
};
// START THE PROCESS
// processes all of the models in the collection
myQueue.push(files_arr, function(_err) {
_err && Ti.API.error("error processing queued model " + JSON.stringify(_err));
});
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