How to create a AngularJS promise from a callback-based API

Question

wifiservice.js:

angular.module(\'app.WifiServices\', [])
    .factory(\'WifiService\', function(){
        var unique_array = angular.fromJson(\'[]\');

             


        

Answer 1

Well, I came up with something different:

var unique_array = [];
  $scope.wifiList = [];
  $ionicLoading.show({
    template: "Scanning surrounding AP's..."
  });

 window.setTimeout(function() {
  $scope.wifiList = WifiService.list();
  // alert($scope.wifiList);
  while ($scope.wifiList == []) {
    console.log('Scanning...');
  }
  $scope.$apply();
  $ionicLoading.hide();
 }, 5000);

What I realize is that the scanning starts once I load the view. So, I added an IonicLoader to force the user to wait, and not be able to press any buttons till the scan is finished. So no function shall wait one another. Not quite code-wise correct, but it does what I need.