Cordova Download Multiple Files

app.js

angular.module('starter', ['ionic','ngCordova'])
.config(['$compileProvider', function($compileProvider) {

	   $compileProvider.imgSrcSanitizationWhitelist(/^\s*(https?|ftp|mailto|content|file|assets-library):/);

}])
.controller('Main', ["$ionicPlatform", "$cordovaFileTransfer", "$q", "$scope",
    function($ionicPlatform, $cordovaFileTransfer, $q, $scope) {
    console.log("running Main controller");
    $scope.images = [];

    $ionicPlatform.ready(function() {
      //resources to download
      var resources = [
        "https://placekitten.com/g/200/300",
        "https://placekitten.com/g/200/350",
        "https://placekitten.com/g/400/350",
        "https://placekitten.com/g/300/200",
        "https://placekitten.com/g/188/188"
      ];

      var promises = [];

      resources.forEach(function(i,x) {
        var targetPath = cordova.file.documentsDirectory + "image"+x+".jpg";
        promises.push($cordovaFileTransfer.download(i, targetPath, {}, true));
      });

      $q.all(promises).then(function(res) {
        console.log("in theory, all done");
        for(var i=0; i<res.length; i++) {
          $scope.images.push(res[i].nativeURL);
        }
      });
    });

}])
.run(function($ionicPlatform) {
  $ionicPlatform.ready(function() {
    // Hide the accessory bar by default (remove this to show the accessory bar above the keyboard
    // for form inputs)
    if(window.cordova && window.cordova.plugins.Keyboard) {
      cordova.plugins.Keyboard.hideKeyboardAccessoryBar(true);
    }
    if(window.StatusBar) {
      StatusBar.styleDefault();
    }
  });
});