added the import method

js/controllers/import.js

@@ -1,6 +1,22 @@
 'use strict';
 
 angular.module('copay.import').controller('ImportController',
-  function($scope, $rootScope) {
+  function($scope, $rootScope, walletFactory, controllerUtils) {
     $scope.title = 'Import a backup';
+
+    $scope.getFile = function() {
+      var reader = new FileReader();
+
+      // If we use onloadend, we need to check the readyState.
+      reader.onloadend = function(evt) {
+        if (evt.target.readyState == FileReader.DONE) { // DONE == 2
+          var obj = JSON.parse(evt.target.result);
+          $rootScope.wallet = walletFactory.fromObj(obj);
+
+          controllerUtils.startNetwork($rootScope.wallet);
+        }
+      };
+
+      reader.readAsBinaryString($scope.file);
+    };
   });