$ionicLoading
An overlay that can be used to indicate activity while blocking user interaction.
Usage
angular.module('LoadingApp', ['ionic'])
.controller('LoadingCtrl', function($scope, $ionicLoading) {
  $scope.show = function() {
    $ionicLoading.show({
      template: 'Loading...'
    });
  };
  $scope.hide = function(){
    $ionicLoading.hide();
  };
});
Methods
  show(opts)
Shows a loading indicator. If the indicator is already shown, it will set the options given and keep the indicator shown. Note: While this function still returns an $ionicLoading instance for backwards compatiblity, its use has been deprecated.
| Param | Type | Details | 
|---|---|---|
| opts | 
        
  object
       | 
      
         The options for the loading indicator. Available properties: 
  | 
    
  hide()
Hides the loading indicator, if shown.